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Transcript of EH Selection Guide
8/10/2019 EH Selection Guide
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Continuous level measurementin liquids and bulk solidsSelection and engineering guidefor the process industry
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Legend
Continuous level measurementin liquidsstarting page 3
Continuous level measurement in solidsstarting page 77
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Continuous level measurementin liquidsSelection and engineering guidefor the process industry
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Step by step
This selection and engineering guide provides information on differentmeasuring principles for continuous level/interface measurement inliquids as well as their application and installation.
The pamphlet contains two separate chapters: Level measurement inliquids and Level measurement in solids.
The first chapter specifically covers continuous measurement in liquids. A separate select ion guide is available for point level detect ion (see thesupplementary documentation CP007F).
Selection of the measuringprincipleThe appropriate measuringprinciple is first selectedaccording to the applicationand its criteria (tank, bypass,stil ling well, etc.).Select the principle whichmeets, if possible, all of thecriteria requi red by you or yourplant. The measuring principlesare classified according to „non-contact“ and „contact“ criteria.The ideal measuring principle/instrument is stated first and ina blue frame.Max. technical data is alwaysused.
Instrument selectionNow change to the area of theselected measuring principle
where you can chose theappropriate instrument from aproduct family.Compare your application andprocess data with the instru-ment data.
Engineering After the selection of theoptimum instrument check theinstallation instructions at theend of the respective measuringprinciple. They contain basicdirections for the safe installa-tion and use of the instrument.
You will find more extensiveengineering instructions in therespective Technical Informa-tion of the instrument.
B C
Overview of measuringprinciplesFirst of a ll, we show you anoverview of the Endress+Hausermeasuring principles forcontinuous level/interfacemeasurement in liquids indiagrams on the first pages.Subsequently, you are intro-duced to the mode of function-ing of the measuring principleand the respective productfamily.
Checklist You should be aware of theapplication requirements for thecorrect selection of a suitableinstrument. The checklistprovides an overview andis supposed to help you toconsider or record this data ascompletely as possible.
A
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Contents
A
B
C
1. Overview of measuring principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2. Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3. Selection of the measuring principle according to the application . . . . 14Horizontal cylindrical storage tank . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Vertical storage tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Buffer tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Recipient tank (e.g. bottling facilities) . . . . . . . . . . . . . . . . . . . . . . . . . 21Process tank with agitator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Stilling well . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Pump shaft/overfall construction/rain water basin . . . . . . . . . . . . . . .28Channel measurement (free flowing) . . . . . . . . . . . . . . . . . . . . . . . . . . 30Interface measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4. Instrument selection within the measuring principle . . . . . . . . . . . . . 34Time-of-flight radar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34Guided radar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50Ultrasonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62Hydrostat ics (pressure/differential pressure) . . . . . . . . . . . . . . . . . . . .66Radiometry: The radiometric measuring principle is not considered inthis section. Please contact our application consultants in your countryfor detailed information.
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A 1. Overview of the measuring principles
Point level Continuous
Liquids VibronicsConductiveCapacitanceFloat switchRadiometrics
RadarGuided radarUltrasonics
Hydrostatics (p + dp)CapacitanceRadiometrics
Bulk solids VibronicsCapacitance
Paddle Microwave barrier
Radiometrics
Guided radarRadar
UltrasonicsElectromechanical level
systemRadiometrics
Segmentation
Process conditions*
Temperature (°C)
Radar
Hydrostat ics (p + dp)
Guided radar
Ultrasonics
Pressure(bar)
* Radiometry not depictedNon-contact measurement from outside and, therefore, no application limits.
Capacitance
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A
„You only pay what you really need“.Endress+Hauser takes this statement seriously and offers a la rge number of differentmeasuring principles which vary in price and functionality.
Simple price and performance classification via theS/M/T structure within product families:
Every product family consists of up to three segments: S/M/T.
For highest demands on process data the S segment offers the optimum solution. Variant variety within the M segments facilitates flexible adaptation of theinst rument to the application. The perfect solution for many applications.The T segment offers a sensor for simple applications with the same high qualitystandard. The limited number of variants permits a low price.
••
•
Endress+Hauser offers you a solution adapted to your application and tailored to yourprocess requirements.
You can select the best technology for your appl ication from t he wide product rangeof Endress+Hauser.
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1. Overview of measuring principles
RadarMicropilot works with high-frequencyradar pulses which are emitted byan antenna and reflected from the
product surface. The time of flight ofthe reflected radar pulse is directlyproportional to the dist ance traveled. Ifthe tank geometry is known, the levelcan be calculated from this variable.
Micropilot MNon-contact, maintenance-freemeasurement also under extremeconditions. Unaffected by density,
temperature, conductibility andhumidity. No impairment by vaporpressure.
Process temperatures up to+400°C/+752°FProcess pressures up to160bar/2320psi
•
•
Guided radarLevelflex works with high-frequencyradar pulses which are guided alonga probe. As the pulse impacts themedium surface, the characteristicimpedance changes and part of theemitted pulse is reflected. The timebetween pulse launching and receivingis measured and analyzed by theinstrument and constitutes a directmeasure for the distance between theprocess connection and the product
surface.
LevelflexReliable and maintenance-freemeasurement in liquids, also inturbulent media and foam. Unaffectedby density, temperature, conductibil ityand humidity. No impairment by vaporpressure. Measurement of interfaceand level.
Process temperatures up to+450°C/+842°FProcess pressures up to
400bar/5,800psi
•
•
UltrasonicsUltrasonic measurement is based onthe time-of-flight principle. A sensoremits ultrasonic pulses, the surface ofthe media reflects the signal and thesensor detects it again.The time of flight of the reflected
ultrasonic signal is directly proportionalto the distance traveled. With theknown tank geometry the level can becalculated.
Prosonic S/M/TNon-contact and maintenance-freemeasurement without impairment byproduct properties, e.g. dielectricconstant, conductivity, density orhumidity.
Process temperatures up to+150°C/+302°FProcess pressures up to3bar/44psi
•
•
A
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A
Hydrostatics (differential pressure)In closed, pressurized tanks, thehydrostatic pressure of the liquidcolumn causes a difference in pressure.The same leads to a deflect ion ofthe measuring element which isproportional to the hydrostaticpressure.
Deltabar SUnaffected by dielectric constant,foam, turbulence and obstacles.High overload resistance.
Process temperatures up to+400°C/+752°FProcess pressures up to420bar/6,090psi
•
•
CapacitanceThe principle of capacitive level
measurement is based on the capacitancechange of a capacitor. The probeand the tank wall form a capacitor
whose capacitance is dependent onthe amount of product in the tank: anempty tank has a lower, a filled tank ahigher capacitance.
Liquicap M/TExact measurement from the end of
the probe to the process connect ion without any blocking distance. Veryfast response times. Unaffected bydensity, turbulence and vapor pressure.
Process temperatures up to+200°C/+392°FProcess pressures up to100bar/1,450psi
•
•
Hydrostatics (pressure)Hydrostatic level measurement in opentanks is based on the determinationof the hydrostatic pressure which is
generated by the height of the liquidcolumn. The obtained pressure is thusa direct measure for the level.
Cerabar S/M, Deltapilot S/MUnaffected by dielectric constant,foam, turbulence and obstacles.Condensate-proof, watertight and
long-term stable Contite measuringcell with optimized temperature shockbehavior (Deltapilot S).
Process temperatures up to+400°C/+752°F
•
Radiometry The gamma source, a cesium or cobalt
isotope, emits radiation which isattenuated as it passes through materials.The measuring effect results from theabsorpt ion of radiation by the productto be measured which is caused bylevel changes.The measuring system consists of asource and a compact transmitter as areceiver.
Gammapilot MNon-contact measurement from outside
for all extreme applications, e.g. verycorrosive, aggressive and abrasivemedia.
Unaffected by media Any process temperature Any process pressu reUnaffected by gammagraphy
For more detailed information, pleasecontact our application consultant in
your country or use the Applicatorselection guide.
••••
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A 1. Overview of measuring principles
Radar Guided radar Ultrasonics
Process temperature
Process pressure
–60…+ 00°C/–76…+75 °F–1…+160bar/–14.5…+2,320psi
–196…+450°C/–3 1…+842°F–1…+400bar/–14.5…+5,800psi
–40…+150°C/–40…+30 °F–0.3…+3bar/–4.4…+44psi
Measuring range 0.3…70m/1…229ft 0. … 5m/0.7…148ft (longer upon request)
0.07… 0m/0.2…65ft
Instrument accuracy C-band 2: <10m: ±10mm< 3 ft: ±0. "
K-band2
: < 10m: ±3mm< 3 f t: ±0.1 "Option: ±1mm/0.04"
•
•
•
<15m: ± mm<49ft: ±0.08"
>15m: ±10mm> 49ft: ±0.4"of distance
•
•
< 1m: ±2 m<3. ft: ±0.08"
>1m: ±0.2%> 3. ft: ±0. %of distance
•
•
Function may beaffected by
FoamExtreme turbulent, boilingsurfacesConductive build-up onantenna connectionStrong build-up formation
••
•
•
Extreme build-upformation
• FoamExtreme turbulent, boilingsurfacesStrong build-up or strongcondensate at the sensor
••
•
Accuracy may beaffected by
Wall ef fectsInterfering reflections /signal strength (obstaclesin the signal beam.)Extreme pressure changese.g. 1.2% at 50bar/725psi(+ 0°C/+68°F, air)
••
•
Interfering reflections byobstacles near the probe(not for coaxial probe)Extreme pressure changese.g. 1. % at 50bar/725psi(+20°C/+68°F, air)
•
•
Higher vapor pressure maychange the time of flight Temperature layers in the gasphaseInterfering reflectionsFast temperature change
•
•
••
Application limits Measurement up to abs.0%1
DK <1.4Lateral installation or frombelow
•
••
Measurement up to abs. 0% 3
DK <1.trong mechanical stress
in agitator applicationsLateral installation or frombelow Extreme foam formation
•••
•
•
Measurement up to abs. 0% 1
Vapor pressure > 50mbar/0.73psi (+ 0°C/+68°F)Blocking distance4
Lateral installation or frombelow
••
••
E. g. dish bottom, conical outlet C-band: 6GHz Measurement only up to the probe endK-band: 6GHz
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A
Capacitance Radiometrics Hydrostatics(pressure)
Hydrostatics(differential pressure)
80…+200°C/11 …+392°F1…+100bar/14.5…+1,450psi
Unaffected by temperatureand pressure
–70…+400°C/–94…+752°Fn.a.
–70…+400°C/–94…+752°F/
20bar/6,090psi
1…10m/0.3…3 f t 0.05...12m/0.16...39f t,cascadable
0.1…100m/0.3…328ft(10mbar…10bar/0.15psi…145psi)
from 0.1m/0.3ft100mbar…40bar/
0.145psi…580psi)
1% of measuring distance ±1% of measur ing distance• ±0.075% of the set span• ±0.075% of the set span•
Plastic tank Extreme conductivebuild-up
External radiation(gammagraphy)
• Dynamic pressurefluctuations by agitator or
whirling
• Dynamic pressurefluctuations by agitatoror whirling
•
Conductivity <30µs/cm:changing dielectricconstantsConductive build-up
Extreme pressurefluctuationsExtreme build-up
•
•
Density change Very fast temperaturechangeTk of capillaries anddiaphragm seals (processand ambient temperature)
••
•
Density changeTk 5 of capillaries anddiaphragm seals (processand ambient temperature)Dynamic pressure, e.g.caused by agitator
••
•
Agitator blade Alternating fi ll ing at<30µs/cm conductivityDK <2.0Media diffusing throughPTPE, e.g. chlorine
Observe radiationprotection lawsFurther information fromour sales team
•
•
Curing build-upStrong densityfluctuations
••
Curing build-up Vacuum andsimultaneously tempera-tures > +200°C/+392°F(diaphragm seal)Strong densityfluctuations
••
•
Measurement is possible up to the blocking distance (BD) of the sensor Tk = Temperature coefficient
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A 2. Checklist
You should be familiar with al l of the requi rements of your applicat ion for the select ion of the r ight i nstru-ment. The checklist on page 9 provides an overviewof relevant process data and wi ll help you to take the
same into consideration. If we have not included all ofthe detail s, please supplement the list by your cr iteria.
The checklist i s required both for the selection of themeasuring principle and the selection of the instru-ment.
The following table compares the individual measuringmethods and is supposed to assist in a first preselection.
Selection guide Radar Guidedradar
Ultrasonics Hydrostatic(p + dp)
Capaci-tance
Condensate O + O + +
Foam formation O + O + O
Conductivity 1…100µs/cm + + + + O
Changing media (density) + + + – +
Low DK O O + + O
Viscosity + O + + O
Build-up formation + O + O O
Small tank (blocking distance) O O O + +
Hygienic application (cleanability) + + + + +
Pressurization + + O O +
Simple maintenance (disassembly) + O + O O
Independent of installation site O + O O +
Unaffected by obstacles O + O + +
Small tank (fast level change) O O O + +
Vapor pressure> 50mbar / +20°C, > 0.73psi / +68°F)
+ + O + +
CIP/SIP temperature cycles + + + O +
+ = recommendedO = restricted (observe limits)– = not recommended
TIPCopy this checklist and complete it to have all relevantdata at your disposal in the selection process.
Radiometry is not included in detail in thefollowing chapters. For specific informationplease contact our sales team.
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A
Please complete Notes
Details of medium Medium
Density g/cm3
Conductivity µS/cm
Dielectric constant (DK)
Resistance/e.g. coating
Non-contactmeasurement
yes no
Process data Process temperature min. max.
Process pressure min. max.
Vapor pressure min. max.
Process
connection
Type of connection / size
Installation Tank (height, Ø) yes no
Nozzle dimensions mm / inch
Assembly posit ion(from above/from below) 1)
Free space min. max.
Bypass (Ø) yes no
Stilling well (Ø) yes no
Electricconnection
2-wire yes no
4-wire yes no
Digitalcommunication
HART®, PROFIBUS®,FOUNDATION™ fieldbus, relay
Approva ls Ex (Ex ia/Ex d) yes no
WHG yes no
Shipbuilding yes no
EHEDG yes no
3A yes no
Certificates/manufacturerdeclarations
3.1 yes no
NACE yes no
FDA-listed material yes noSIL yes no
Calibration certificates yes no
Specialrequirements
1) Only applicable to level measurement by pressure instruments
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B
3. Selection of the measuring principle according to the application
Non-contact
Radar Micropilot M
UltrasonicsProsonic S/M/T
Advantages For highly viscous mediaHigh resistanceUniversally usable (free adjustable meas-uring range)
•••
High resistanceelf-cleaning effect of sensors
Integrated alarm/point level relay Free adjustable measuring range
••••
Technical dataConnection
Accuracy Process temperatureProcess pressure
Process connection
Maximum measuringrange
••••
•
•
2-wire (HART , PA, FF)±3mm/±0.12"–60…+ 00°C/–76…+752°F–1…+160bar/–1 .5…+ ,320psi
Threads, f langes (DIN, ANSI, JIS),hygienic connections70m/229ft
2-/ -wire (HART , DP, PA, FF)±2mm/±0.08" +0.17% of the distance–40…+105°C/–40…+ 21°F–0.3…3bar/–4.4…+44psi
Threads, Tri-Clamp, flanges (DIN, ANSI, JIS)
20m/65ft
Application limits Strong formationof foamMany obstacles
Low DK value(<1.4)
•
•
•
guided radar,hydrostaticsguided radar,capacitance,hydrostaticshydrostatics
trong formationof foam
Vapor pressure
Many obstacles
•
•
•
guided radar,hydrostaticsradar, guided radar,capacitanceguided radar,capacitance,hydrostatics
FMR23x/24x
FMU90
FDU9x
(separated) (compact)
Please note:
Radar continued on Page 34
Please note:
Ultrasonics continued on Page 56
U4x
FMU30
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B
Please note:
ided radar continued on Page 50
Please note:
Hydrostatics continued on Page 66
Please note:
Capacitance continued on Page 62
Contact
Our proposal
Guided radarLevelflex
HydrostaticsDeltapilot M
CapacitanceLiquicap M
Unaffected by changing mediaNo impairment by the installations of • Tank baffles• Nozzle dimensions• Double reflectionCoaxial probe
Unaffected by foamUnaffected by installation situationUnaffected by DK value
•••
Ground tube probeUnaffected by nozzle dimensionsand tank obstaclesCalibration not required inconductive liquidsNo blocking distance
••
•
•
wire (HART , PA, FF), 4-wire HART2mm/±0.08"196…+450°C/–321…+842°F1…+400bar/–14.5…+5,800psi
hreads, f langes (DIN, ANSI, JIS),ygienic connections0m/33ft (rod), 5m/1 8ft (rope),m/20ft (coax), longer upon request
2-wire (HART , PA, FF)±0.1%, (typ. 3…10mm/0.12"…0. ")–10…+80°C/1 …+176°F
Ambient pressure
Threads, f langes (DIN, ANSI, JIS)
Typically up to 100m/3 8ft(10bar/145psi)
2-wire (HART )±1.0%–80…+200°C/-11 …+392°F–1…+100bar/–14.5…+1,450psi
Threads, f langes (DIN, ANSI, JIS),hygienic connections4m/13ft (rod), 10m/32ft (rope)
trong build-upormation (e.g.
high viscosity,crystallizing
edia, etc.)Low DK value(< 1. )
adar,ultrasonics
hydrostatics
Density change
trong build-upformation
•
•
guided radar,radar,ultrasonicsradar,ultrasonics
Changing, non-conductive mediaor conductivitybetween1…100µs/cmStrong, conductivebuild-up formation
•
•
guided radar,radar,ultrasonics
radar,ultrasonics
FMI5xFMP5x(coax)
MB5
Horizontal cylindrical storage tank Calm surface (e. g. bottom filling, fill ing viaimmersion tube or rare free filling from above)
Accuracy 3…10mm/0.1 …0.4"Free space measurement (without stil ling well,top mounted)Tank diameter up to 3m/9.8ft Changing mediaInstallation from above
•
••
•••
H o r i z o n
t a l c y l i n d .
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BNon-contact
Our proposal
Radar Micropilot M
UltrasonicsProsonic S/M/T
Advantages Non-contact and unaffected by headpressuresUniversally useable due to• Flexible measuring range• Changing, highly viscous or
aggressive media (100 % PTFE)
•
•
High resistanceSelf-cleaning effect of sensorsIntegrated alarm/point level relay
•••
Technical dataConnection
Accuracy Process temperatureProcess pressureProcess connection
Maximum measuringange
•••••
•
2-wire (HART®, PA, FF)±3mm/±0.12"–60…+ 00°C/–76…+752°F–1…+160bar/–1 .5…+ ,320psiThreads, f langes (DIN, ANSI, JIS),
hygienic connections70m/229ft
2-/ -wire (HART , DP, PA, FF)±2mm/±0.08" +0.17% of the distance– 0…+105°C/–40…+221°F–0.3…3bar/– …+ 4psiThreads, Tri-Clamp, flanges (DIN, ANSI, JIS)
20m/65ft
Application limits Strong formationof foamMany obstacles
Low DK value(<1.4)
•
•
•
guided radar,hydrostaticsguided radar,capacitance,hydrostaticshydrostatics
Strong formationof foam
Vapor pressure>50mbar/0.73psi(20°C/+68°F)Many obstacles
•
•
•
guided radar,hydrostaticsradar, guided radar,capacitance
guided radar, capaci-ance, hydrostatics
3. Selection of the measuring principle according to the application
FMR23x/24x
FMU90
FDU9x
Please note:
Radar continued on Page 34
Please note:
Ultrasonics cont inued on Page 56
(separated) (compact)
U4x
FMU30
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B
Please note:
ided radar continued on Page 50
Please note:
Hydrostatics continued on Page 66
Please note:
Capacitance continued on Page 6
Contact
Our proposal
uided radarLevelflex
HydrostaticsDeltapilot S/M, Cerabar S/M,
Deltabar S
CapacitanceLiquicap M
Unaffected by nozzle dimensions andtank obstacles
Tried and tested technology providingeasy engineering and commissioning Unaffected by• DK values• Tank baffles• Foam
•
•
Unaffected by nozzle dimensionsand tank obstaclesCalibration not required inconductive liquidsNo blocking distance
•
•
•
-wire (HART®, PA, FF), -wire HART®
mm/±0.08"196…+450°C/–3 1…+8 2°F1…+ 00bar/–14.5…+5,800psihreads, f langes (DIN, ANSI, JIS),
ygienic connections0m/33ft (rod), 45m/148ft (rope),m/ 0ft (coax), longer upon request
2-wire (HART®, PA, FF)±0.075% of the set span–70…+400°C/–94…+752°F420bar/6,092psiThreads, f langes (DIN, ANSI, JIS),
hygienic connectionsTypically up to 100m/328ft(10bar/145psi)
-wire (HART®)±1.0%–80…+ 00°C/–11 …+392°F–1…+100bar/–1 .5…+1, 50psi
hreads, f langes (DIN, ANSI, JIS),
hygienic connectionsm/13ft (rod), 10m/32ft (rope)
Strong build-upformation (e.g.high viscosity,crystallizingmedia, etc.)Low DK value(<1.4)
radar,ultrasonics
hydrostatics
Density change
Strong build-upformation
•
•
guided radar,radar,ultrasonicsradar,ultrasonics
Changing, non-conductive mediaor conductivitybetween1…100µs/cmStrong, conductivebuild-up formation
•
•
guidedradar, radar,ultrasonics
radar,ultrasonics
FMP5x
MI5
PMD/FMD7x
PMC/PMP5x
Vertical storage tank Calm surface (e. g. bottom filling, fill ing viaimmersion tube or rare free filling from above)
Accuracy 3…10mm/0.1 …0.4"Free space measurement(without stilling well/bypass)
•
••
FMB5x/FMB7x
V e r t i c a l
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BNon-contact
Our proposal
Radar Micropilot M
UltrasonicsProsonic S/M
Advantages Non-contact and unaffected by headpressuresUniversally useable due to• Flexible measuring range• Changing, highly viscous or
aggressive media (100 % PTFE)
•
•
High resistanceSelf-cleaning effect of sensorsIntegrated alarm/point level relay Fast measuring frequency (4-wire)
••••
Technical dataConnection
Accuracy Process temperatureProcess pressureProcess connection
Maximum measuringrange
•••••
•
2-wire (HART®, PA, FF)±3mm/±0.12"–60…+400°C/–76…+752°F–1…+160bar/–14.5…+2,320psiThreads, f langes (DIN, ANSI, JIS),hygienic connections70m/229ft
2-/4-wire (HART ®, DP, PA, FF)±2mm/±0.08" +0.17% of the distance–40…+105°C/–40…+221°F–0.3…+3bar/–4.4…+44psiThreads, Tri-Clamp, flanges (DIN, ANSI, JIS)
20m/65ft
Application limits Strong formation
of foamMany obstaclesin the radarbeam
Low DK value(<1.4)
•
•
•
guided radar,
hydrostaticsguided radar,capacitance,hydrostatics
hydrostatics
Strong formation
of foam Vapor pressure
Many obstacles
•
•
•
guided radar,
hydrostaticsradar, guided radar,capacitance
guided radar,capacitance,hydrostatics
3. Selection of the measuring principle according to the application
FMR23x/24x
FMU90
FMU4x
FDU9x
(separated) (compact)
Please note:
Radar continued on Page 34
Please note:
Ultrasonics continued on Page 56
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B
Please note:
Guided radar continued on Page 50
Please note:
drostatics continued on Page 66
Please note:
Capacitance continued on Page 62
ontact
HydrostaticsCerabar S / Deltabar S
uided radarLevelflex
CapacitanceLiquicap M
Unaffected by foamUnaffected by installation situationUnaffected by DK valueElectronic dp
Unaffected by nozzle dimensions andank obstacles
Unaffected by agitated surfaces
•
•
For small tanks with fast filling anddischarging operationsUnaffected by nozzle dimensions andtank obstaclesNo blocking distance
•
•
•
wire (HART®, PA, FF)0.075% of the set span0…+400°C/–94…+752°F0bar/6,092psi
hreads, f langes (DIN, ANSI, JIS),ygienic connectionsypically up to 100m/3 8 ft0bar/145psi)
-wire (HART®, PA, FF), 4-wire HART±2mm/±0.08"–196…+450°C/–321…+842°F–1…+400bar/–1 .5…+5,800psiThreads, f langes (DIN, ANSI, JIS),hygienic connections10m/33ft (rod), 5m/148ft (rope),6m/20ft (coax), longer upon request
2-wire (HART )±1.0%–80…+200°C/–112…+392°F–1…+100bar/–14.5…+1,450psiThreads, f langes (DIN, ANSI, JIS),hygienic connections4m/13ft (rod), 10m/32ft (rope)
Density
change
Strong build-up formation
Ratio head-pressure tohydrostaticpressuremax. 6:1 forelectronic dp
guided radar,
adar,ultrasonicsadar,
ultrasonics,bubble systemadar, guidedadar, dp
trong lateral load
trong build-upormatione.g. high viscosity,
crystallizing media,etc.)DK starting at 1.4
•
•
•
radar,
ultrasonics,hydrostat-icsradar,ultrasonics
hydrostatics
Changing, non-
conductive mediaor conductivitybetween1…100µs/cmtrong, conductive
build-up formationtrong lateral load
•
•
•
guided
radar, radar,ultrasonics
radar,ultrasonicsradar,ultrasonics,hydrostatics
P5 FMI5PMD/FMD7x
Buffer tank Agit ated surface (e. g. perma nent free f il ling fromabove, mixing jets, slowly turning mixer, lateral
installation)Free space measurement (without stil ling well)Foam spots, islandsPressurizedFast temperature changes (cleaning)
•
••••
x PMC/PMP7x(electronic dp)
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B
3. Selection of the measuring principle according to the application
Notes
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BContact Our proposal
apacitanceLiquicap M
Guided radarLevelflex
HydrostaticsDeltapilot S/M, Cerabar S/M
dvantages Fastest response times infilling and dischargingoperationsMaximum tank exploitation– no blocking distanceUnaffected by nozzledimensions and tank baffles
•
•
•
Unaffected by nozzle dimensionsand tank obstaclesUnaffected by product properties(conductivity, density)
•
•
Electronic dpUnaffected by foamUnaffected by installationituation
Unaffected by DK valueFast response times
•••
••
echnical dataConnection
Accuracy ProcesstemperatureProcess pressureProcessconnectionMaximummeasuring range
2-wire (HART )
±1.0%–80…+200°C/–112…+392°F
–1…+100bar/–1 .5…+1,450psiThreads, f langes (DIN, ANSI,
JIS), hygienic connections4m/13ft (rod),10m/32ft (rope)
-wire (HART®, PA, FF), 4-wireHART®
±2mm/±0.08"–196…+ 50°C/–321…+842°F
–1…+400bar/–14.5…+5,800psiThreads, f langes (DIN, ANSI, JIS),hygienic connections10m/33ft (rod), 45m/148ft (rope),6m/ 0ft (coax), longer uponrequest
2-wire (HART , PA, FF)
±0.075% of the set span– 0…+150°C/– 0…+302°F
40bar/580psiThreads, flanges (DIN, ANSI,
JIS), hygienic connectionsTypically up to 100m/3 8ft(10bar/145psi)
pplication limits Changing,on-
conductiveedia or
conductivitybetween1…100µs/cm
• hydro-tatics
Extremely fastfilling and dis-charging operations(response times<0.7sec)Highly accuratemeasurementsin the lower andupper areaDK starting at 1.4
•
•
•
capaci-ance
capaci-ance
hydro-tatics
DensitychangeElectronicdp-ratioheadpressure tohydrostaticpressuremax. 6 1
•
•
capacitancecapacitance,dp, guidedradar
FMI5x
Please note: Guided radar
continued on Page 50
Please note: Hydrostatics
continued on Page 66
Please note: Capacitance
continued on Page 62
Recipient tank (e.g. bottling faciliti s)PressurizedFast temperature changes (cleaning)
Fast filling and discharging operationsTank <1m/3. ft in height Strongly foaming surface
••
•••
P5
x FMB50/FMB70
2 x PMC/PMP5xPMC/PMP7x
R e c
i p i e n t t a n k
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BNon-contact
Our proposal
Radar Micropilot M
UltrasonicsProsonic S/M
Advantages Non-contact and unaffected by headpressuresUniversally useable due to• Flexible measuring range• Changing, highly viscous or
aggressive media (100 % PTFE)
•
•
High resistanceSelf-cleaning effect of sensorsIntegrated alarm/point level relay Fast measuring frequency (4-wire)
••••
Technical dataConnection
Accuracy Process temperatureProcess pressure
Process connection
Maximum measuringrange
••••
•
•
2-wire (HART®, PA, FF)±3mm/±0.12"–60…+400°C/–76…+752°F–1…+160bar/–14.5…+2,320psi
Threads, f langes (DIN, ANSI, JIS),hygienic connections70m/229ft
2-/4-wire (HART ®, DP, PA, FF)±2mm/±0.08" +0.17% of the distance–40…+105°C/–40…+221°F–0.3…+3bar/–4.4…+44psi
Threads, Tri-Clamp, flanges (DIN, ANSI, JIS)
20m/65ft
Application limits Strong formation offoamMany obstaclesLow DK value (<1.4)Extreme turbulences
•
•••
hydrostatics
Strong formation offoam
Vapor pressureMany obstaclesFast temperaturechangesStrong turbulences
•
•••
•
hydrostatics
radarhydrostaticsradar
hydrostatics
3. Selection of the measuring principle according to the application
FMR23x/24x
FMU90
FMU4x
FDU9x
(separated) (compact)
Please note:
Radar continued on Page 34
Please note:
Ultrasonics cont inued on Page 56
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B
PMD/FMD7x
Please note:
drostatics continued on Page 66
ontact
Our proposal
HydrostaticsDeltabar S
Tried and tested technology providing easyengineering and commissioning Unaffected by• DK values• Tank baffles• Foam
wire (HART®, PA, FF)0.075% of the set span0…+400°C/–94…+752°F0bar/6,090psi
hreads, f langes (DIN, ANSI, JIS),ygienic connectionsm/131ft (4bar/58psi)
Density changeStrong build-upformationStrongly fluctuatingambient temperatures(influence on capillarysystem)
radar, ultrasonicsradar, ultrasonics,bubble systemradar, electr. dpmeasurement via2 ceramictransmitters
Process tank with agitator Agit ated surfaceSingle-stage agitator (<60RPM)
PressurizedFree space measurement (without stilling well/bypass)Foam formation is possible depending on the application
••
•••
P r o c e s s t a n k
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B Non-contact
Our proposal
Radar Micropilot M
UltrasonicProsonic S/M
Advantages Non-contact and unaffected byhead pressuresUniversally useable due to flexiblemeasuring range• Installation for stilling wells > 4m• Also with ball valve
•
•
High resistanceSelf-cleaning effect of sensorsIntegrated alarm/point level relay Unaffected by stilling well material
••••
Technical dataConnection
Accuracy Process temperatureProcess pressureProcess connection
Maximum measuringrange
•••••
•
2-wire (HART®, PA, FF)±3mm/±0.12"–60…+ 00°C/–76…+752°F–1…+160bar/–1 .5…+ ,320psiThreads, f langes (DIN, ANSI, JIS),hygienic connections
70m/229ft
2-/ -wire (HART , DP, PA, FF)± mm/±0.08" +0.17% of the distance– 0…+105°C/–40…+221°F–0.3…+3bar/–4 4…+ 4psiThreads, Tri-Clamp, flanges (DIN, ANSI, JIS
20m/65ft
Application limits Large changes in thestilling well crosssection
Arrangement, size ofequalizing openingsPlastic stilling wells
DK starting at 1.4
•
•
•
•
guided radar,capacitance
guided radar,capacitanceultrasonics,guided radarfloat
Vapor pressure• radar
3. Selection of the measuring principle according to the application
FMR23x/ 4x
FMU90
FMU4x
FDU9x
(separated) (compact)
Please note:
Radar continued on Page 34
Please note:
Ultrasonics continued on Page 56
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B
FMI5xP5x
Please note:
ided radar continued on Page 50
Please note:
Capacitance continued on Page 6
Contact
Our proposal
Guided radarLevelflex
CapacitanceLiquicap M
Unaffected by the stilling well geometry Divisible rod probe
Unaffected by the stilling wellgeometry
•
wire (HART®, PA, FF), 4-wire HART®
mm/±0.08"196…+450°C/–3 1…+842°F1…+ 00bar/–14.5…+5,800psihreads, f langes (DIN, ANSI, JIS),ygienic connections
0m/33ft (rod), 45m/1 8ft (rope),nger upon request
-wire (HART®)±1.0%–80…+200°C/–112…+392°F–1…+100bar/–14.5…+1,450psiThreads, f langes (DIN, ANSI, JIS),hygienic connections
4m/13ft (rod), 10m/3 ft (rope)
Contact betweenprobe and stillingwellHighly viscousproducts(>1000cst)Max. stilling welllength 10m/33 ft DK starting at 1.4
radar,ultrasonics
radar,ultrasonicsloat
Changing, non-conductive mediaor conductivitybetween1…100µs/cm
• guided radar,radar,ultrasonics
Stilling wellMeasurement in metal pipes (installed in the tank)e.g. immersion tube
Nominal width typ. DN40…DN150/1.5"…6"
•
•
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B
3. Selection of the measuring principle according to the application
Non-contact
Radar Micropilot M
Advantages Measurement with ball valve possibleFor highly viscous media (100% PTFE possible)Universally usable (free adjustable measuring range)
•••
Technical dataConnection
Accuracy Process temperatureProcess pressure
Process connection
Maximum measuringrange
••••
•
•
2-wire (HART , PA, FF)±3mm/±0.12"–60…+ 00°C/–76…+752°F–1…+160bar/–1 .5…+ ,320psi
Threads, f langes (DIN, ANSI, JIS),hygienic connections70m/229ft
Application limits Strong formationof foamMany obstacles
Low DK value(<1.4)
•
•
•
guided radar,hydrostaticsguided radar, capacitance,hydrostaticshydrostatics
FMR23x/24x
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B
Please note:
ided radar continued on Page 50
Please note:
Capacitance continued on Page 6
Contact
Our proposal
uided radarLevelflex
CapacitanceLiquicap M
No impairment by bypass connectionsUnaffected by changing mediaSafe operation in case of filling viaupper connection (“coaxial probe”)
For small tanks with fast fill ing anddischarging operationsUnaffected by nozzle dimensions andtank obstaclesNo blocking distance
•
•
•
-wire (HART , PA, FF), 4-wire HART± mm/±0.08"–196…+450°C/–3 1…+842°F–1…+400bar/–14.5…+5,800psi
Threads, f langes (DIN, ANSI, JIS),hygienic connections0m/33ft (rod), 45m/1 8ft (rope),onger upon request
2-wire (HART )±1.0%–80…+200°C/–112…+392°F–1…+100bar/–14.5…+1,450psi
Threads, f langes (DIN, ANSI, JIS),hygienic connections4m/13ft (rod), 10m/32 t (rope)
trong build-upformation (e.g.high viscosity,crystallizingmedia, etc.)Low DK value(<1.4)
radar
hydrostatics
Changing, non-conductive mediaor conductivitybetween1…100µs/cmStrong, conductivebuild-up formation
•
•
guided radar,radar
radar,hydrostatics
FMI5MP5x
BypassMeasurement in metal pipes (installed outside the tank)Replacement of d isplacer/float vessels, compensation vessels
Nominal width typ. DN 40…DN150 /1.5"…6"
••
•
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B
3. Selection of the measuring principle according to the application
Non-contact
Our proposal
UltrasonicsProsonic S/M
Radar Micropilot M
Advantages Overspill-protected, heated sensors with self-cleaning effect Universal use due to flexible measuring rangeOperation and display at easily accessible mountinglocations possible incl. integrated point level relay and integrated control functions
•
••
Universally usable (free adjustablemeasuring range)Unaffected by temperature layersFree of maintenance
•
••
Technical dataConnection
Accuracy Process temperature
Process pressureProcess connection
Maximum measuringange
•••
••
•
2-/ -wire (HART , DP, PA, FF)± mm/±0.08" +0.17% of the distance–40…+105°C/–40…+221°F
–0.3…+3bar/– . …+ 4psiThreads, Tri-Clamp, flanges (DIN, ANSI, JIS)
20m/65ft
-wire (HART®, PA, FF)±3mm/±0.12"–60…+ 00°C/–76…+752°F
–1…+160bar/–14.5…+2,3 0psihreads, f langes (DIN, ANSI, JIS),hygienic connections70m/ 29 t
Application limits Strong formation offoamMany obstacles
•
•hydrostatics
Strong formationof foamMany obstacles
•
•hydrostatic
3x/ 4x
FMU90
FMU4x
FDU9x
(separated)(compact)
Please note:
Radar continued on Page 34
Please note:
Ultrasonics cont inued on Page 56
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B
FMB53 FMX21/FMX167 FMI5
Please note:
Capacitance continued on Page 6
Please note:
drostatics continued on Page 66
Contact
Our proposal
HydrostaticsDeltapilot M / Waterpilot
CapacitanceLiquicap M
Tried and tested technology, providing easyengineering and commissioning Unaffected by tank baffles, mountingsituation and foamOperation and display possible at easilyaccessible mounting locations
For small tanks with fast filling anddischarging operationsUnaffected by nozzle dimensions and tankobstaclesNo blocking distance
•
•
•
-wire (HART®, PA, FF)0.1%10…80°C/14…176°F
mbient pressureMounting clamp, cable mounting screw
00m/656ft (20bar/290psi)
2-wire (HART )±1.0%–80…+200°C/–112…+392°F
–1…+100bar/–14.5…+1,450psiThreads, f langes (DIN, ANSI, JIS),hygienic connections4m/13ft (rod), 10m/3 ft (rope)
Risk of sludgeformation/pollution (build-up)
ult rason ics, rada r Chang ing, non-conductive media orconductivity between1…100µs/cmtrong, conductive
build-up formation
•
•
guided radar,radar
radar,hydrostatics
Pump shaft/overfall construction/ain water basin
Many obstaclesRisk of flooding, foam formation and turbulentsurfacesBuild-up on the sensor and contacting obstacles(ice formation in winter, suspended solids)Installation at open basins or undergroundSludge formation due to suspended solids
••
•
••
P u
m p s h a f t / o v e r f a l l c o n s t r u c t i o n
/
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B
3. Selection of the measuring principle according to the application
Non-contact
Our proposal
UltrasonicsProsonic S/M
Radar Micropilot M
Advantages No flow impairment Overspill-protected, heated sensors with self-cleaning effect Operation and display at easily accessiblemounting locations possible incl. integratedpoint level relay and preprogrammed flowcurves
••
•
Universally usable (free adjustablemeasuring range)Unaffected by temperature layersFree of maintenance
•
••
Technical dataConnection
Accuracy
Process temperatureProcess pressureProcess connection
Maximum measuringange
••
•••
•
2-/ -wire (HART , DP, PA, FF)± mm/±0.08" +0.17% of the distance
–40…+105°C/–40…+221°F–0.3…+3bar/– …+ 4psiThreads, Tri-Clamp, flanges (DIN, ANSI, JIS)
20m/65ft
2-wire (HART®, PA, FF)±3mm/±0.12"
–60…+ 00°C/–76…+752°F–1…+160bar/–1 .5…+ ,320psiThreads, f langes (DIN, ANSI, JIS),hygienic connections70m/229ft
Application limits Strong formation offoamMany obstacles
•
•hydrostatics
Strong formation offoamMany obstacles
•
•hydrostatic
FMR 3x/24x
FMU90
FMU4x
FDU9x
(separated) (compact)
Please note:
Radar continued on Page 34
Please note:
Ultrasonics cont inued on Page 56
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FMB53
FMX 1/FMX167
Please note:
drostatics continued on Page 66
Contact
Hydrostatics Waterpi lot / Deltapilot S
Unaffected by obstacles / installation situationUnaffected by foam formationSimple commissioning, calibrationis not required
-wire (HART , PA, FF)0.1%
10…80°C/+14…+176°Fmbient pressureMounting clamp, cable mounting screw
00m/656ft ( 0bar/290psi)
Risk of sludge accumulation /pollution (build-up formation)Installation not in flowing
water
ultrasonics,radarultrasonics,radar
Channel measurement(free flowing)
Risk of flooding, foam formationObstaclesCondensate formation (icing in winter)on sensor and instrument Build-up on the sensor and contacting obstacles(ice formation in winter, suspended solids)Installation at open basins or underground
•••
•
•
C h a n
n e l m e a s u
r e m e n
t
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B
3. Selection of the measuring principle according to the application
Contact uided radarLevelflex
Mult iparameterLevelflex
Advantages Simultaneous acquisition of interface layer andtotal levelNot affected by the density of the mediumNo wet calibration required
Direct replacement of displacers in exist ing displacer chambersProbes can be shortened (rod)
•
••
•
•
imultaneous acquisition of interfacelayer and overall level, also in case ofemulsionsPrecise and reliable measurement
Independent of medium density Wet calibration not requiredPTFE-coated probe
•
•
•••
Technical dataConnection
Accuracy
Process temperatureProcess pressureProcess connection
Maximum measuringrange
••
•••
•
2-wire (HART®/PA), 4-wire± mm/±0.08" (overall level);±10mm/±0.39" (interface level)–196…+450°C/–3 1…+8 2°F1…+ 00bar/–14.5…+5,800psi
Threads, f langes (DIN, ANSI, JIS), hygieneconnections6m/ 0ft (coax), 10m/33ft (rope/rod),longer upon request
2-wire (HART /PA), -wire±2mm/±0.08" (overall level);±10mm/±0.39" (interface level)–50…+ 00°C/–58…+392°F–1…+40bar/–14.5…+580psiThreads, f langes (DIN, ANSI, JIS), hygieneconnections6m/20ft (coax), 10m/33ft (rope/rod),longer upon request
Application limits Dielectric constant (DK value) of the uppermedium must be determinedDK value changes of the upper mediuminfluence accuracy DK value of the upper medium may be max. 10Difference of the DKs between the two mediamust be >10For interface measurement, the thickness ofthe upper phase must be min. 60mm/2.36"Emulsion layers up to max. 50mm/1.97"allowable
•
•
••
•
•
Dielectric constant (DK value) of theupper medium must be determinedDK value changes of the upper mediumaffect the accuracy DK value of the upper medium may be
ax. 10DK value difference between both media
ust be >10For interface layer measurement, thethickness of the upper phase must be
inimum 60mm/ .36"
•
•
•
•
•
Please note:Guided radar continued on Page 50
FMP55FMP51/52/54
1 1 2
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B
Interface measurement Interface liquid/liquid
With emulsion layer
Multiphase measurement
Non-contact Capacitance
LiquicapRadiometricsGammapilot
Tried and tested instrumentationNo wet calibration requiredNot affected by the density of the mediumUnproblematic use in emulsion layers
Ideal for very small measuring rangesExtremely fast response time
Non-invasive and maintenance-freemeasuring methodUnaffected by pressure and temperatureOnly slight influence by build-up
Unproblematic use in emulsion layersSolutions for multiphase measurementsusing several detectors
•
••
••
-wire (HART®)±1%
–80…+ 00°C/–11 …+392°F–1…+100bar/–1 .5…+1, 50psi
hreads, f langes (DIN, ANSI, JIS), hygiene connections
m/13ft (rod), 10m/32ft (rope)
4-wire (HART , PA, FF)±1% of measuring distance
Independent (non-invasive)Independent (non-invasive)Independent (non-invasive)
Adaptable to appl ication
Difference of the dielectric constant (DK value) betweenthe two media must be >10.The upper medium may not be conductive
Accuracy impai rment in case of nonconductive build-upon the probeThe smaller the vessel the higher the inf luenceof DK changes in the upper mediumThe bigger the quotient DK(below) / DK(above)the better the accuracy The total level is not measured
Medium density changes influence theaccuracy The overall level is not measured (possible with afurt her source and detector)Calibration with the medium is requiredRadiation Protection Law
•
•
••
Please note:Capacitance continued on Page 6
1 2 3
FMG60FMI51/5
1 2 1 2 3
Recommendation
I n t e r f a c e
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C
4. Instrument selection within the measuring principle
Required application dataPressure and temperatureDielectric constant of the medium(DK)/media groupRequired material compatibility Nozzle diameter/nozzle height Measuring rangeRequired accuracy For stilling well/bypass:
Internal pipe diameter
Application limits for radar levelmeasurement
T < -60°C/-76°For T >+400°C/+752°Fp >160bar/2320psiMeasuring range >70m/229ft Dielectric constant <1.4Process connection < 1½"
••
•••••
•
••••
Dielectric constant (DK)The reflection properties of a mediumare determined by the dielectricconstant (DK).The following table shows the allocationof dif ferent DK values to media groups.If the dielectric constant of a mediumis not known, we recommend to usea DK value of 1.9 for sizing in order to
maintain a safe measurement.
! For reliable measurement:Use a horn antenna whenever possible. In addition,this should have the largest possible diameter.
Radar
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C
4. Instrument selection within the measuring principle
Radar – process industry
Micropilot M
FMR230 C-Band 1
Micropilot M
FMR231 C-Band 1
Micropilot M
FMR240K-Band 2
Technical dataProcess pressure
Process temperature
Accuracy Process connection
Wetted parts
Measuring rangesGastight feedthroughTechnical Information
•
•
••
•
•••
–1…+160bar/–14.5…+2320psi–60…+400°C/
–76…+752°F±10mm/0.4"DN80…DN 250/3"…10"
316L/1.4435, Alloy C, PTFE,ceramics, graphite, enamel,sealings20m/65ft StandardTI 345F
–1…+40bar/–14.5…+580psi–40…+150°C/
–40…+302°F±10mm/0.4"R1½", DN50…DN150/2"…6",hygienic connections316L/1.4435, PPS, PTFE,PVDF, sealings
20m/65ft OptionalTI 345F
–1…+40bar/–14.5…+580psi–40…+150°C/
–40…+302°F±3mm/±0.12"R 1½", DN50…DN150/2"…6",Tri-Clamp316L/1.4435, Alloy C, PTFE,sealings
40m/131ft OptionalTI 345F
Applications
Horizontal storage tank cyl. – – +
Vertica l storage tank O O +Buffer tank O O +
Recipient tank – – –
Process tank + + +
Stilling well O – +
Bypass O – O
Pump shaft – – +
Channel measurement – – O
Application limits Free space with nozzle
<DN150/6 "Stilling well with ball valveHygienerequire-ments316L/1.4435or Alloy Cnon-resistant
•
•
•
•
FMR231,240, 245
FMR240,245
FMR231,245
Nozzleheight
> 250 mm/9.8 "Low DK
•
•
FMR230,240, 245
Ammoniacalgas phase
Strong build-up formation
316L/1.4435or Alloy Cnon-resistant HygienerequirementsCustodytransfermeasurement
•
•
•
•
•
FMR230 instilling we
FMR230 with airpurgeFMR231,244, 245
FMR231,245FMR5xx
+ = recommended O = restricted (observe limits) – = not recommended
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C
C-Band = 6GHz K-Band= 6GHz
Micropilot M
FMR244K-Band
Micropilot M
FMR245K-Band 2
Micropilot S
FMR53x C-Band 1 / custody
transfer
Micropilot S
FMR540 K-Band 2 / custody transfer
–1…+3bar/–14.5…+43.5psi–40…+130°C/
–40…+ 66°F±3mm/±0.1 "G1½", 1½"NPT,DN80… DN150/3"…6"PTFE, PVDF, Viton, PP,ealings
5m/8 f t —TI 345F
–1…+16bar/–14.5…+232psi–40…+200°C/
–40…+302°F±3mm/±0.1 "DN50…DN150/ "…6",Tri-Clamp, hygienic connectionsPTFE
40m/131ft OptionalTI 3 5F
–1…+64bar/–1 .5…+928psi–40…+200°C/
–40…+392°F±1mm/±0.0 4"DN80…DN 250/3"…10"
316Ti/1. 571, PTFE,316L/1.4435, HNBR,ealings5m/82ft tandardI 344F
–1…+16bar/–14.5…+23 psi– 0…+200°C/
– 0…+392°F±1mm/±0.0 "DN80…DN 200/3"…8"
316L/1. 435, PTFE, PEEK,sealings
40m/131ft StandardTI 412F
+ – –
+ + O ++ + – –
– – – –
O + – –
– + +* –
– + – –
+ + – –
+ O – –
Ammoniacalgas p ase
trong build-up ormation
Low DKnly PTFE
esistant ustody
trans ermeasurement
30 inst i ing
we 30 wit airpurgeFMR 40FMR 45
FMR
Ammoniacalgas p ase
Strong build-upormation
mall con-nections withlow DK
ow DK andig nozz e
Custodytrans er
easurement
•
•
•
•
•
30in s ti ing
we 30 wit airpurgeFMR 31
MR 4
xx
Free spacean many
a es
• MR 0 • Strongcon ensate
or ui -upormation• xisting
stilling wells withnon-idealmeasuringconditions
FMR53x
FMR5
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4. Instrument selection within the measuring principle
Radar – process industry Measuring range in dependence on the type of tank, processconditions and medium for Micropilot M FMR 30/FMR 31.
Storage tank 1)
Calm surface(e. g. bottom filling, fill ing via immersion tubeor rare free filling from above)
Buffer tank 1)
Agit ated surface(e.g. permanent free filling from above,mixing jets)
Horn/antenna diameter
FMR230 150mm/6"2 0mm/8"250mm/10"
150mm/6"200mm/8"250mm/10"
FMR231 Rod antenna Rod antenna
Measuring range in m/ft
Media group A: DK = 1.4…1.9B: DK =1.9…4
: DK = 4 10D: DK = >10
B
10/32
C
15/49
D
20/65
B C D
15/49
20/65
20/65
5/16
B C D
10/32
7.5/25
12.5/41
7.5/25
B C D
10/32
For media group A use stilling well ( 0m/65ft).2) Possible for media groups A and B, e.g. with a stilling well in the bypass.
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Cank with single-stage propeller agitator 1)
urbulent surface,ngle-stage agitator60U/min./<60RPM
Bypass
150mm/6"2 0mm/8"250mm/10"
80…250mm/3…10" 80… 50mm/3…10" )
Rod antenna —
4/13
B
8/
26
C
6/20
D B
8/
26
C
6/20
D
10/32
A , B, C , D
20/65
20/65
C, D
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4. Instrument selection within the measuring principle
Measuring range in dependence on the type of tank Process conditions and medium for Micropilot M FMR240/FMR244/FMR245
Advised max. measuring range = 20m/65ft (for FMR244 DN80/3 ")
Storage tank/Channel measurement Calm surface(e.g. bottom filling, filling via immersion tube orrare free filling from above)
Horn/antenna diameter
FMR240 40mm/1.5" 50mm/2" 80mm/3" 100mm/4"
FMR244 40mm/1.5" — 80mm/3" —FMR245 — 50mm/2" 80mm/3" —
Measuring range in m/ft
Media group A: DK = 1.4…1.9B: DK = 1.9…4C: DK = 4…10D: DK = >10
B A C D
10/32
15/49
15/49
25/82
5/16
3/9.9
8/26
5/16
B A C D
8/26
8/26
15/49
4/13
25/82
12/39
35/110
40/131
30/99
60/197
B A C D
10/32
15/49
8/26
20/65
40/131
40/131
* *
B A C D
10/32
15/49
25/82
30/99
40/131
40/131
45/148
70/229
*
*
Standard:Max. measuringrange =40m/131ft
With additionaloption F (G):Max. measuringrange =70m/229ft Min. measuringrange =5m/16ft
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*
*
*
uffer tank/Pump shaftsgit ated surface
e.g. permanent free filling from above, mixingts, slowly turning mixer, lateral installation)
40mm/1.5" 50mm/2" 80mm/3" 100mm/4"
40mm/1.5" — 80mm/3" —— 50mm/2" 80mm/3" —
2/6.6
B C D
10/32
5/16
4/13
7.5/25
B C D
10/32
10/33
5/16
3/9.9
7.5/25
15/49
2,5
B A C D
5/16
5/16
10/32
10/32
15/4915/
49
25/85
*
B A C D
5/16
10/32
15/4915/
49
25/82
25/82
35/110
7.5/25
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4. Instrument selection within the measuring principle
Measuring range in dependence on the type of tank Process conditions and medium for Micropilot M FMR240/FMR 44/FMR 45
Tank with single-stagepropeller agitatorTurbulent surface,single-stage agitator<60U/min./<60RPM
Horn/antenna diameter
FMR240 — 50mm/ " 80mm/3 " 100mm/ "
FMR244 — — 80mm/3 " —FMR245 — 50mm/ " 80mm/3 " —
Measuring range in m/ft
Media group A: DK = 1.4…1.9B: DK =1.9…4
: DK = 4…10D: DK = >10
C D
3/9.8
5/16
2/6.6
B C D
5/16
10/32
3/9.8
2/6.6
7.5/25
B C D
15/49
5/16
8/26
12/39
2.5/8.2
B C D
4/13
8/26
5/16
15/49
10/32
20/65
Standard:Max. measuringrange =
0m/131ft
With additionaloption F (G):Max. measuringrange =70m/229ft Min. measuringrange =5m/16ft
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ypass
0…100mm/1.5…4 " 40…100mm/1.5…4 "
0...80mm/1.5...3“ —50…80mm/ …3 " 50…80mm/2…3 "
A, B, C, D
20/65
C, D
20/65
For media groups A and B useLevelflex with coax probe.
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4. Instrument selection within the measuring principle
Measuring range depending on the type of tank Process conditions and medium for Micropilot S FMR530/531/532/533/540
Storage tank Highly accurate measurement,custody transfer
Horn/antenna diameter
FMR530 150mm/6" 200mm/250mm8"/10"
FMR532
FMR533
FMR540 100mm/4"
Measuring range in m/ft
Media group A: DK = 1.4…1.9B: DK = 1.9…4C: DK = 4…10D: DK = >10
B C, D
20/65
30/99
B
10/32
B C D
15/49
20/65 25/
82
Standard:
Max. measuringrange =40m/131ft
With additionaloption F (G):Max. measuringrange =70m/229ft Min. measuringrange =5m/16ft
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Installation instructions radar – free space
4. Instrument selection within the measuring principle
Weather protection cover Always recommended for outside insta llat ion to avoid st rongtemperature changes of electronics
InstallationNot in the centerNot above the fillstreamDistance to wall: ~ 1/6 of the tank diameter, at least, however,30cm/12" (6GHz), or 15cm/6" (26GHz)
If these conditions cannot be met: Use stilling wellLateral installation on request
NozzleFMR230/240 horn antenna should prot rude from the nozzle. Pleasenote the max. nozzle length, otherwise use antenna extension
FMR244/245 note the max. nozzle lengthThe inactive part of the rod antenna should be longer than the heightof the nozzle. Please contact our application consultant if this i s notpossiblePlease note the information in the Technical Documentations
Measuring rangeMeasurement is possible up to the t ip of the antenna, on principle,however, the end of the measuring range should not be closer than50mm/2" to the tip of the antenna because of corrosion and build-upformationThe measuring range starts where the radar beam meets the tankbottom. With dish bottoms or conical outlets, the level cannot bedetected below this point
Tank installations Avoid any installations li ke limit switches, temperature sensors, etc. within the signal beam (see table below)Symmetrical installations, e.g. vacuum rings, heating coils, flowbreakers, etc. may impair measurement
Optimization optionsSize of antenna: The larger the antenna diameter the smaller thebeam angle (see table below, the less interference echoes)
A sti ll ing wel l or a Levelflex M can a lways be used to avoidinterference
Foam of formationRadar pulses may be absorbed by foamThe surface of foam can ref lect. Solution: Trial measurement with26GHz or e.g. Levelflex or hydrostatic measurement
•
•••
•
•
••
•
•
•
•
•
•
•
••
VersionFMR 230
231531
240244
240245
240244245 240 530 533 540
Antenna DN150 DN200 DN250 Stab DN40 DN50 DN80 DN100 DN150 DN200 DN250 Parabol DN100
Beam angle 23° 19° 15° 30° 23° 18° 10° 8° 23° 19° 15° 7° 4° 8°
Max. nozzlelength withoutextension[mm/"]
205/8.1
290/11.5
380/15
250/10 500/20
180/7.1
260/10.2
350/13.8
200/7.9
50/2
43
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Weather protect ion cover Always recommended for outside installat ion to avoid st rongtemperature changes of electronics
Optimum horn sizeSelect horn antenna as large as possible. In case of in-betweensizes (e.g. 95mm/3.7") use the next larger antenna and adapt itmechanically
Ball valveMeasurements through an open ball valve with full passage arepossible
Measur ing rangeMeasurement is possible up to the t ip of the antenna, on principle,however, the end of the measur ing range should not be closerthan 50mm/2" to the tip of the antenna because of corrosion andbuild-up formation
Recommendations for the bypassMetallic (without plastic or enamel coating)The bypass pipe must be smooth inside
Constant diameterIn transit ions, caused for example by ball valves or joining ofindividual pipe pieces, gaps of max. 1mm/0.04" are permitted
•
•
•
•
••
••
Installation instructions radar – bypass
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Installation instructions radar – stilling well
4. Instrument selection within the measuring principle
Weather protection cover Always recommended for outside insta llat ion to avoid st rongtemperature changes of electronics
Optimum horn sizeSelect horn antenna as large as possible. In case of in-betweensizes (e.g. 95mm/3.7") use the next larger antenna and adapt itmechanically
Ball valve (if available)Measurements through an open ball valve with full passage arepossible
Measuring rangeMeasurement is possible up to the t ip of the antenna, on principle,however, the end of the measur ing range should not be closerthan 50mm/2" to the tip of the antenna because of corrosion andbuild-up formation
Slots/holes As few holes/slots as possibleSlot width or hole diameter max. 1/10 of pipe diameterDeburredLength and number do not affect the measurement Slots/holes 180° offset (not 90°)
Recommendations for stilling wellsMetall ic (without enamel coating, plast ic upon request)Constant diameter
Welding seam as even as possible and placed in the axis of the slot sThe stilling well must be smooth inside
Do not weld through the wal l of the pipe, the inside of the pipe
must remain smoothIn trans itions, caused for example by ball valves or joining ofindividual pipe pieces, gaps of max. 1mm/0.04" are permitted
•
•
•
•
•••••
••••
•
•
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d
L
5 0 0 m m / 2 0 "
4949
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Instructions for Endress+Hauser UNI flanges in FMR532Endress+Hauser UNI flanges are designed with a pitch circlediameter compatible with DIN, ANSI and JIS counter flanges
UNI flanges have been designed for unpressurized operationor atmospheric pressure (1bar/14.5psi absolute pressure). Thenumber of flange bolts has been partly reduced
Recommendations for stilling wellsMetallic (without enamel coating, plast ic upon request)Constant diameterHole diameter max. 1/ 7 of pipe diameter and not bigger than30mm/1.2"Spacing between holes min. 30cm/12"For FMR532 (planar antenna) a gradual delatation (DN150/6" to
DN 200/8", DN 200/8" to DN 250/10", DN 250/10" to DN 300/12")can even be accepted. In such cases, the upper pipe end musthave a minimum length of 500mm/20" prior to dilatation. LengthL of the delatat ion must be an additional 300mm/12" or forDN 250/10" to DN300/12" 450mm/18"Larger pipe delatation (e.g. DN 150/6" to DN 300/12") is possible,if length L of the delatation amounts to 450mm/18"Ideally, a gauge nozzle is used as upper pipe endRectangular pipe dilatation is not permitted
•
•
•••
••
•
••
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AdvantagesUnaffected by medium surface (agitated surface, foam)Unaffected by tank obstacles
Additional measuring safety through End of Probe (EoP) recognitionDK starting at 1.6 without stil ling well (1.4 for coax probe)
••••
Max. measur ing ranges
FMP51 FMP52 FMP53 FMP54
6m/20ft not with rope — 4m/13ft 6m/20ft
not with rope
25…30m/82…98ft
12…15m/39…49ft 6m/20ft 25…30m/
82…98ft
30…45m/98…148ft
15…25m/49…82ft 6m/20ft 30…45m/
98…148ft
45m/148ft 25…35m/82…115ft 6m/20ft 45m/148ft
45m/148ft 35…45m/115…148ft 6m/20ft 45m/148ft
45m/148ft 45m/148ft 6m/20ft 45m/148ft
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4. Instrument selection within the measuring principle
Guided radar – process industry Levelflex
FMP50Levelflex
FMP51
Technical dataProcess pressureProcess temperature
Accuracy
Process connection
Wetted parts
Measuring ranges
Gastight feedthroughTechnical Information
•••
•
•
•
••
–1…+6bar/–14.5…+87psi–20…+80°C/–4…+176°F<15m/ 9ft: ±2mm/0.08"
G/NPT ¾"
Rope/rod: 316L, PPS, sealings
0.3…4m/1…13ft (rod)0.3…12m/1…39ft (rope)
—TI 01000F
–1…+40bar/–14.5…+580psi–40…+200°C/–40…+392°F<15m/ 9 t: ±2 m/0.08";>15m/ 9 t: ±10mm/0.4"
G/NPT ¾" and 1½", DN 40… 00/1.5"…8"
Rope: 316, rod and coax: 316L/1.4435, Al loy C (C 2/2.460 ), seal ings, ceramics0.3…10m/1…33ft (rod), not dividable up to4m/13ft, dividable up to 10m/33ft,1… 5m/3. …1 8ft (rope),0.3…6m/1… 0ft (coax),longer upon request OptionalTI 01001F
Applications
Horizontal storage tank cyl. O +*
Vertica l storage tank + +
Buffer tank O +
Recipient tank +
Process tank – –
Stilling well + +
Bypass O +
Pump shaft – –Channel measurement – –
Interface measurement – +**
Application limits Aggressive mediaHigh pressure/emperatures
>80°C/176°F;6bar/87psi
••
FMP5FMP51,FMP54
* use coax probe Aggressive media** use coax system in favor (coaxprobe, bypass, stilling well)Interface with emulsion
•••
•
FMP5
FMP5
+ = recommended O = rest ricted (observe l imits) – = not recommended
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LevelflexFMP52
Levelflex FMP53
evelflex FMP54
1…+ 0bar/–1 .5…+580psi50…+200°C/–58…+392°F15m/ 9ft: ±2mm/0.08";15m/ 9ft: ±10mm/0.4"
ri-Clamp 1½" to 3", DIN 11851,DN40…DN150/1.5"…6"
TFE, PFA
.3…4m/1…13ft (rod)…45m//3. …1 8ft (rope)
OptionalI 01001F
–1…+16bar/–14.5…+23 psi– 0…+150°C/– …+30 °F<15m/ 9 ft: ± mm/0.08"
ri-Clamp, DIN11851, SMS,DIN1186 , NEUMO316L/1.4435, PEEK, sealings
0.3… m/1…13ft (rod), notdividable up to m/13ft,dividable up to 6m/ 0ft, longerupon request —
I 0100 F
–1…+400bar/–14.5…+5,800psi–196…+450°C – 3 1…+842°F<15m/ 9ft: ±2mm/0.08";>15m/ 9ft: ±10mm/0.4",±5mm/±0.0 " (coax)G/NPT 1½", DN50…DN100/ "… "
Rope: 316, rod and coax: 316L/1. 435,ceramics, graphite, Alloy C (C 2/2. 60 )0.3…10m/1…33ft (rod), not dividable up to4m/13ft, dividable up to 10m/33ft,1…45m/3. …148ft (rope), 0.3…6m/1… 0ft (coax), longer upon request StandardTI 01001F
– O +*
+ + +
+ + +
+ –
– – –
– +
– +
– – –– – –
+** – +**
High process temperatures(>150°C/30 °F) can favordiffusion of the processmedium into the probecoating which may lead toa limited lifetime** use coax system infavor (bypass, stilling well)Interface with emulsion
FMP54
FMP55
* use coax probe** use coax systemin favor (coax probe,bypass, stilling well)Interface withemulsion
••
• FMP55
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B D
5454
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Installation instructions guided radar - free field
4. Instrument selection within the measuring principle
Weather protection cover Always recommended for outside insta llat ion to avoid st rongtemperature changes of electronics
InstallationNot in the centerNot above the fillstream
Any wa ll distance, avoid wall contact
NozzleNozzles with DN 40…DN150/1.5"…6" and nozzle height sup to 150mm/6" are to be preferredFor rope probes in nozzles with > 150mm/6" in height, anHMP40 rod extension must be used
Measuring rangeSmallest measuring range: 300mm/12"Largest measuring range: 45m/148ft (longer upon request)For minimum distance probe end tank bottom see tablebelow Measurement is possible up to the blocking dist ance (BD), onprinciple
Tank installationsDistance to obstacles min. 300mm/12"During commissioning interference echos can be suppressed
Turbulent surface/foamTurbulent surfaces do not affect measurement Foam layers of up to approx. 100mm/4" do not affectmeasurement. Higher foam thickness may result in toosmall readings
•
•••
•
•
•••
•
••
••
Blocking distance (BD) and minimal distance from the tankbottom
Blocking distance top*:- Coax probe: 0mm/0"
Rope or rod probe >8m/26ft: 0.025 x probe length
Minimal distance from tank bottom: >10mm/0.4"
•
•
* The blocking dista nce (BD) is preset from the factory.Depending from the application these settings can beadjusted.
If the DK value in rope probes is < 7, measurement is not possible in thetensioning weight area (0…250mm/10" from t he end of the probe - lowerblocking distance). Less accurate measurement is possible in the lower areaof the probe.
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Installation instructions guided radar – stilling well/bypass
Weather protect ion cover Always recommended for outside installat ion to avoid st rongtemperature changes of electronics
Measur ing rangeSmallest measuring range: 300mm/12"Largest measuring range: 10m/33ft (longer upon request)
Pipe diameterPipes of DN 40 …DN150/1.5"…6" are to be preferred, t hesediameters do not have any top blocking distance, measurementis possible up to the bottom edge of the process connection
Bypass/measuring tubeMetallic pipeNo special requirements of bypass pipe or stilling well
Welding seams protruding internal ly up to approx. 5mm/0.2" donot impair measurement
Wall contact by rod probes must be excluded. Use a centering diskat the end of the probe, if required
Additional inst ruct ions for interface measurement Rod probes can be insta lled up to a diameter of 100mm/4".For larger diameters, a coax probe is recommendedThe pipe must not have any gradat ionIn case of interface layer measurement, the centering disk must beof plastic material
•
••
•
•••
•
•
••
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4. Instrument selection within the measuring principle
Required application dataPressure and temperature
Vapor pressure of t he medium (at 20°C/68°F)Required material compatibility Nozzle diameter/nozzle height Measuring rangeRequired accuracy For bypass/stilling well:Internal pipe diameter
•••••••
Application limits for u ltrasonic levelmeasurement in liquids
T <–40°C/-40°F or T > 105°C/221°Fp <–0.3bar/–4.4psi and p > 3bar/44psiMeasuring range > 20m/65ft
Vapor pressure > 50mbar/0.73psi (20°C/68°F)Process connection < 1½"Strong temperature fluctuations in the measuringrange can affect the accuracy
••••••
Ultrasonics
Example (for FDU92): Very turbulent surface: 20dBSmall quantities of filli ng curtain inthe detection range: 10dBTotal: 30dB range approx.16m/52ft
••
•
Damping caused by process
Surface of liquid Filling curtain in thedetection range
-Temp. sensor mediumsurface
Calm 0dB None 0dB Up to 20°C/68°F
0dB
Waves 5…10dB Small quantit ies 5…10dB Up to 40°C/104°F
5…10dB
Strongturbulence
10…20dB Large quantities 10…40dB Up to 80°C/176°F
10…20dB
Foam Ask Endress+Hauser — — — —
For applications, the sum of dampings (dB) and thus the range (m/ft) can be determined in the diagram from the table.
Range calculation and sensor selection Prosonic S FDU9x
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FMU40
FMU41
FMU43
FMU44
10 20 30 40 50 60 70 80
1/3.2
5/166/20
8/26
10/32
15/49
20/65
FMU42
R [m/ft]
A [dB]
5757
C Vapor pressure Examples
<50mbar/0.73psi(20°C/68°F)
Water, water solutions, water- solids solutions, di lute acids (hydrochloric acid,sulphuric acid, …), dilute lyes (caustic soda solution, …), oils, fats, lime water,sludges, pastes, …
>50mbar/0.73psi(20°C/68°F)
Ethanol, acetone, ammonia, …For best accuracy results radar
Range ca lculation and selection of sensor for Prosonic M FMU4x and FMU30
Vapor pressure of the medium (20°C/68°F)The vapor pressure of the medium at 20°C/68°Fis an indicat ion for the accuracy of ultrasonic levelmeasurement. If t he vapor pressure at 20°C/68°F islower than 50mbar/0.73psi, ult rasonic measurementis recommended. If t he vapor pressure at 20°C/68°F isabove 50mbar/0.73psi, the accuracy of the measurement
wil l be af fected. To achieve the highest accuracyresults, radar level measurement is recommended.
AdvantagesNon-contact, maintenance-free measurementUnaffected by product properties, e.g. DK,density, etc.Calibration without filli ng or discharging Self-cleaning effect of sensors due to movedtransmitting diaphragm
••
••
Example (for FMU41): Very turbulent surface:20dB
-temp. sensormedium surface approx.60°C/140°F: 15dBTotal: 35dB rangeapprox. 6m/20ft
•
•
•
Example (for FMU30 2" sensor):Strong turbulencesurface: approx. 20dBNo dust formation: 0dBFilling curtain indetection range: 10dB
Total: approx. 30dB range approx. 7.8m/26ft from diagram
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4. Instrument selection within the measuring principle
Installation instructions ultrasonics – free space
Weather protection cover Always recommended for outside insta llat ion to avoid st rongtemperature changes of electronics (Prosonic M/S)
InstallationNot in the centerNot above the fillstreamDistance to wall: ~ 1/6 of the tank diameter (min. 30cm/12")If these conditions cannot be met: Check stilling well
NozzleThe sensor membrane should be below the nozzle, if this is notpossible, please compare the dimensions of the nozzle with thetable below Please contact Endress+Hauser if nozzle dimensions are d ifferent
Measuring rangeMeasurement is possible up to the blocking dist ance (BD) of thesensorThe measuring range begins where the ultrasonic beam meets thetank bottom. With dish bottoms or conical outlets, the level cannotbe detected below this point
Tank installations Avoid any installations li ke limit switches, temperature sensors,etc. within the signal beam (see table)Symmetrical installations, i.e. heating coils, flow breakers, etc. canalso interfere with the measurement
Optimization optionsUse a sensor with a smaller beam angle
A sti ll ing wel l or a sound guiding tube can a lways be used to avoidinterference. Please clarify build-up tendency of the medium
Formation of foamUltrasonic signals may be absorbed by foamThe surface of foam can ref lect. Solution: Trial measurement withultrasonics or e.g. hydrostatic measurement
•
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Max. nozzlelength
(mm/")
Sensor typeFMU40
FMU30 (1½ ")FMU41
FMU30 (2 ")FMU42 FMU44 FDU90 FDU91 FDU91F FDU92
DN50 /2" 80 50 2
DN80 /3" 240 240 250 340 1/250 2 340 340
DN100 /4" 300 300 300 390 1/300 2 390 390DN150 /6" 400 400 400 400 400 1/300 2 400 400 400
Beam angle 11° 11° 11° 11° 12° 9° 12° 11°BD (m/ft) 0.25/0.8 0.35/1.15 0.4/1.3 0.5/1.6 0.07/0.23 0.3/1 0.3/1 0.4/1.3
Recommended nozzle dimensions, nozzle length from sensor diaphragm, beam angle (3 dB)1 Mounted at backside thread 2 Mounted at frontside thread
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Weather protect ion cover Always recommended for outside installat ion to avoid st rongtemperature changes of electronics (Prosonic M/S)
Measur ing rangeMeasurement is possible up to the blocking dist ance (BD) of thesensor
Slots/holes (for stil ling wells)Slot width or diameter of holes max. 1/10 of pipe diameterDeburredLength and number do not affect t he measurement
At least one ventilation hole (>10mm/0.4") is to be provided in theblocking distance of the sensor
Recommendations for stilling wells Any rigid pipe (metal, gla ss, plastics, …)The stilling well must be smooth insideConstant diameter
Applicable to sti ll ing wel ls: Do not weld through the wall of thepipe, the inside of the pipe must remain smoothThe assembly of individual pipe pieces may only cause a gap ofmax. 1mm/0.04"Recommended minimum inner diameter >80mm/3".Please observe sensor dimensions to choose the right innerdiameter
Separate instrumentation with FMU9x
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10 4
10 3
10 2
10
1
10 –1
10 –2
10 –3
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4. Instrument selection within the measuring principle
Capacitance
Required application dataPressure and temperatureConductivity/dielectricconstant of t he medium (DK)/media groupRequired material compatibility Measuring rangeRequired accuracy Mounting position
••
••••
Starting from a conductivity of100µS/cm the measured valueis not affected by the dielectricconstant and the conductivity ofthe medium.The following table describesdifferent media.
For reliable measurement:Provide proper ground connectionbetween process connection andtank. If required, establish groundconnection by potential com-pensation line. In plastic tanks,use probe with a ground tube ordouble rod probe Liquicap T, ifpossible.
Application limits for capacitancelevel measurement
T < –80°C/-112°F orT > +200°C/+392°Fp >100bar/1,450psiMeasuring range >10m/3.2ft
•
••
Operating range of Liquicap M
The accuracy is unaffected by the conductivity andthe DK value (dielectric constant)
Factory cal ibration for 0% and 100%
The accuracy is dependent on the DK value and theconductivity of the medium. Measurement not
recommended, select another measuring principle.
Factory calibration for 0%
The accuracy is dependent on the DK value.
e.g. water-based liquids,aqueous solutions of salts,acids, lyes, aqueous dispersionsand emulsions, waste water,electrolytes, beverages
e.g. hydrocarbons with ahigher water content,demineralized water
e.g. hydrocarbons with a water content below 0.1%,petrols, oils, solvents
Conductivit y (µS/cm)
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Capacitance – process industry
Liquicap MFMI51
Liquicap MFMI52
Liquicap TFMI21
echnical dataProcess pressureProcess temperature
Accuracy Process connection
Wetted parts
Measuring rangesGastight feedthroughTechnical Information
–1…+100bar/-14.5…+1,450psi–80…+200°C/–112…+392°F±1%Thread ½"…1½", Flanges EN,
ANSI, JIS, hyg ienic316L, PFA, PTFE
Rod probe up to 4m/13ft OptionalTI 401F
–1…+100bar/-14.5…+1,450psi–80…+200°C/–112…+392°F±1%Thread ½"…1½", Flanges EN,
ANSI, JIS, hyg ienic316L, PFA, FEP
Rope probe up to 10m/32ft OptionalTI 401F
–1…+10bar/-14.5…+145psi–40…+100°C/–40…+212°F±1%Thread 1½"
316L, PP, carbon f iber
to 2.5m/8.2ft —TI 393F
pplications
orizontal storage tank cyl. + O +
ertica l storage tank + + +
uffer tank + – –
ecipient tank + – –
rocess tank + – –
tilling well + O –
ypass + O –ump shaft O O O
hannel measurement – – –
nterface measurement + + –
pplication limits Insufficient clearancetowards ceiling Changing, non-conductivemedia or conductivitybetween 1…100µs/cm
•
•
Changing, non-conductivemedia or conductivitybetween 1…100µs/cm
• Changing, non-conductivemedia or conductivitybetween 1…100µs/cmHighly viscous liquids> 2000cst
•
•
= recommended O = restricted (observe limits) – = not recommended
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4. Instrument selection within the measuring principle
Installation instructions capacitance
Weather protection cover Always recommended for outside insta llat ion to avoid st rongtemperature changes of electronics
InstallationNot above the fillstreamEstablish proper ground connection between sensor and tank wallUse ground tube in non-conductive tanks (e.g. of plastic material)
NozzleUse inactive length for insta llation in a nozzle
Measuring rangeMeasuring range L1 possible from the tip of the probe to theprocess connectionParticularly suited to small tanks in fast f illing and di schargingoperations
Tank installationsObstacles do not affect t he measurement
Foam of formationIn slight foam formation, the „Build-up compensat ion“ mode maybe selected
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Notes
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Hydrostatics (pressure/differential pressure)
Required application dataPressure and temperatureMedium density Required material compatibility Process connectionMeasuring rangeRequired accuracy
Ambient condit ions (temperature change,moisture, …)
Application limits for hydrostatic levelmeasurement
T < –70°C/–94°F orT >+400°C/+752°Fp > 420bar/6,090psi
AdvantagesUnaffected by surface foamUnaffected by tank obstacles/tank geometriesSimple engineering Established technology
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4. Instrument selection within the measuring principle
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Notes
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4. Instrument selection within the measuring principle
erabar MPMC45 / PMC51
Cerabar MPMP46/48/55
Deltapilot MFMB50
Technical dataProcess pressure
Process temperature
Accuracy Process connection
Wetted parts
Gastight feedthroughMeasuring cell
Technical Information
•
•
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•
••
•
10mbar…40bar/0.15…580psi–40…+125°C/–40…+ 57°F±0.2% (0.1% option)
hread, flange, hygienicconnections316L, Al2O , sealings , PVDF
—Ceramics
I 399P
100mbar…40bar/1.5…580psi– 0…+ 00°C/– 0…+75 °F±0. %Thread, flange, hygienicconnections316L, Alloy, Tantal, PTFE
—Metal welded
TI 399P
100mbar…10bar/1.5…145psi–10…+100°C/+14…+21 °F±0.2% (0.1% option)Thread, flange, hygienicconnections316L, Alloy
—Contite, condensate-proof,
water- tight, meta l weldedTI 437P
Applications
Horizontal storage tank cyl. O O
Vertica l storage tank + + +
Buffer tank O O
Recipient tank O –
Process tank O O +
tilling well – – –
Bypass – – –
Pump shaft – – –Channel measurement – – –
Application limits If pressurized, possibly usedifferential pressuremeasurement with twopressure transmitterselectronic dp). Observe
ratio head pressure tohydrostatic pressure
• If pressurized, possibly usedifferential pressuremeasurement with twopressure transmitters(electronic dp). Observeratio head pressure tohydrostatic pressure
• If pressurized, possibly usdifferential pressuremeasurement with twopressure transmitters.Observe ratio head pressuro hydrostatic pressure
•
+ = recommended = restricted (observe limits) – = not recommended
Hydrostatics – process industry
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Cerabar SPMC71
Cerabar SPMP75
Deltapilot SFMB70
mbar…40bar/7…580psi0…+150°C/0…+302°F075% (0.05% option)read, flange, hygienicnnections6L, A l2O3, sealings, PVDF
andardramics
383P
40mbar… 00bar/0.58…5800psi–40…+400°C/–40…+752°F±0.075%Thread, flange, hygienicconnections316L, Alloy, Tantal, PTFE
tandardMetal welded
TI 383P
5mbar…10bar/0.07…145psi–10…+100°C/+1 …+ 12°F±0.1%Thread, flange, hygienicconnections316L, Alloy
StandardContite, condensate-proof,
water-tight, metal weldedTI 416P
O O O
+ + +
O O O
O – O
O O +
– – –
– – –
– – –– – –
If pressurized, possibly usedifferential pressuremeasurement with twopressure transmitters(electronic dp). Observeratio head pressure tohydrostatic pressure
If pressurized, possiblyuse differential pressuremeasurement with twopressure transmitters(electronic dp). Observeatio head pressure to
hydrostatic pressure
• If pressurized, possibly usedifferential pressuremeas-urement with twopressure transmitters.Observe ratio headpressure to hydrostaticpressure
•
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+ = recommended = restricted (observe limits) – = not recommended
Deltabar SPMD75
Deltabar SFMD77
Deltabar SFMD78
mbar…40bar/.1…580psi
0…+125°C/0…+257°F
0.075% (0.05% option)Oval flange (¼…18NPT),EC 6151816L, Alloy, Monel, Tantal
tandardMetal welded
I 382P
10mbar…16bar/0.15…23 psi–40…+400°C/–40…+752°F±0.075%Flanges
316L, Alloy, Monel, Tantal,PTFEtandard
Metal welded
TI 382P
10mbar…16bar/0.15… 32psi–70…+400°C/–94…+752°F±0.075%Thread, flange, hygienicconnections316L, Alloy, Monel, Tantal,PTFEStandardMetal welded
TI 38 P
O
O O
+ +
– – –
+ + +
– – –
O –
– – –
– – –
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Closed tanks with FMD78
(capillary diaphragm seal)Level measurement is only safeguarded betweenthe upper edge of the lower and the lower edge ofthe upper diaphragm sealIn vacuum applications, it is recommended toinstall the pressure transmitter below the lowerdiaphragm seal. This will avoid a vacuum load ofthe diaphragm seal caused by the presence of fillingoil in the capillaries
Optimizing measuresIn order to avoid additional pressure fluctuationsand a defective instrument, the capillaries should
be installed free of vibrationsThe capillaries may not be installed in the vicinityof heating or cooling pipes which would impairexact measuring resultsIt is recommended to insulate the capil laries in acolder or warmer environment In case of two-sided diaphragm seal systems, theambient temperature and the length of bothcapillaries should be identicalTwo identical diaphragm seals (e.g. d iameter,material, etc.) should always be used for the minusand plus side
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Installation of the pressure transmitter abovethe lower diaphragm seal
If the pressure transmitter is installed above thelower diaphragm seal, the maximum height (seeTechnical Informat ion) may not be exceededThe maximum difference in height depends on thedensity of the filling oil and the lowest pressure
which may occur in the diaphragm seal of the plusside (empty tank) at any time
•
•
min.
max.
p1
p2
min.
max.
p1
p2
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Step by step
This selection and engineering guide provides information on differentmeasuring principles for continuous level measurement in Bulk solids as
well as thei r application and insta llat ion.
The pamphlet contains two separate chapters: Level measurement inliquids and Level measurement in solids.
The second chapter specifically covers continuous measurement in liquids. A separate select ion guide is available for point level detect ion (see thesupplementary documentation CP007F).
Selection of the measuringprincipleThe appropriate measur-ing principle is first selectedaccording to the applicationand its criteria (Silo/bunker,slim/narrow silos, mechanicalconveyor systems, crusher andstockpiles).Select the principle whichmeets, if possible, all of thecriteria requi red by you or yourplant. The measuring principlesare classified according to „non-contact“ and „contact“ criteria.
The ideal measuring principle/instrument is stated first and ina blue frame.Max. technical data is alwaysused.
Instrument selectionNow change to the area of theselected measuring principle
where you can chose theappropriate instrument from aproduct family.Compare your application andprocess data with the instru-ment data.
Engineering After the selection of theoptimum instrument check theinstallation instructions at theend of the respective measuring
principle. They contain basicdirections for the safe installa-tion and use of the instrument.
You will find more extensiveengineering instructions in therespective Technical Informa-tion of the instrument.
B C
Overview of measuringprinciplesFirst of a ll, we show you anoverview of the Endress+Hausermeasuring principles forcontinuous level measurementin solids in diagrams on the firstpages. Subsequently, you areintroduced to the mode offunctioning of the measuringprinciple and the respectiveproduct family.
Checklist You should be aware of the
application requirements for thecorrect selection of a suitableinstrument. The checklist pro-
vides a n overview and is sup-posed to help you to consider orrecord this data as completelyas possible.
A
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Contents
1. Overview of measuring principles . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
2. Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
3. Selection of the measuring principle according to the application . . . . 88Silo/bunker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 90Stockpiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92Mechanical conveyor systems (e. g. conveyor belt) . . . . . . . . . . . . . . . . 93Crusher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
4. Instrument selection within the measuring principle . . . . . . . . . . . . . 96
Time-of-flight radar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96Guided radar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100Ultrasonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104Electromechanical level system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110Radiometrics: The radiometric measuring principle is not considered inthis section. Please contact our application consultants in your countryfor detailed information.
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A
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A
Point level Continuous
Liquids VibronicsConductiveCapacitanceFloat switchRadiometrics
RadarGuided radarUltrasonics
HydrostaticsCapacitanceRadiometrics
Bulk solids VibronicsCapacitance
Paddle Microwave barrier
Radiometrics
Guided radarRadar
UltrasonicsElectromechanical level
systemRadiometrics
1. Overview of the measuring principles
Segmentation
Process conditions*
Grain si ze (mm/")
Radar
Electromechanical level measurement
Guided radar
Ultrasonics
Silo height (m/ft)
* Radiometry not depicted :Non-contact measurement from outside and, therefore, no application limits.
> 50/1.9720/0.79
35/115
40/131
45/14850/164
70/230
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„You only pay what you really need“.Endress+Hauser takes this statement seriously and offers a la rge number of differentmeasuring principles which vary in price and functionality.
Simple price and performance classification via theS/M/T structure within product families:
Every product family consists of up to three segments: S/M/T.
For highest demands on process data the S segment offers the optimum solution. Variant variety within the M segments facilitates flexible adaptation of theinst rument to the application. The perfect solution for many applications.The T segment offers a sensor for simple applications with the same high qualitystandard. The limited number of variants permits a low price.
••
•
Endress+Hauser offers you a solution adapted to your application and tailored to yourprocess requirements.
You can select the best technology for your appl ication from t he wide product range ofEndress+Hauser.
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A Electromechanical level system
A weight is lowered on a measuringtape. As it meets the surface of the bulksolids, the tensi le force of the weight
is reduced. This change is recognized,the inst rument reverses the sense ofrotation of the motor and rewinds thetape. A pulse generator counts therotations in a non-contact manner asthe weight is lowered. Each countedpulse corresponds to an exactly defineddistance. If this distance is deductedfrom the overall dist ance (height of the
vessel), the level results.
Silopilot M/TRobust system for safe measurementsalso in extremely dusty environmentsand low density media. Unaffected by
product properties and DK value.
Radiometry The gamma source, a cesium orcobalt isotope, emits radiation whichis attenuated as it passes throughmaterials. The measuring effect resultsfrom the absorption of radiation by theproduct as the level changes.The measuring system consists of asource and a compact transmitter as a
receiver.
Gammapilot MCompact transmitter in differentmeasuring lengths, adaptable to themeasuring range.Non-contact measurement fromoutside, for all extreme applications,e.g. very abrasive, corrosive andaggressive media:Typical applications: Level measurement
in pulp digesters, wood chip silos andfluidized bed reactors or in density andmass flow measurement.
Unaffected by media Any process temperature Any process pressu reUnaffected by gammagraphy(FHG65)
For more detailed information, pleasecontact our application consultant in
your country or use the Applicator
selection guide.
••••
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A 1. Overview of the measuring principles
Radar Guided radar Ultrasonics
Process temperature*Process pressure
–40…+ 00°C/– 0…+392°F–1…+16bar/–1 .5…+ 32psi
–40…+150°C/–40…+30 °F–1…+16bar/–14.5…+23 psi
–40…+150°C/– 0…+302°F–0.3…+3bar/–4.4…+44psi
Measuring range 0.3…70m/1… 30ft 0.2…45m/0.7…1 8ft 0.07…70m/0. …230ft
Instrument accuracy urfaces of bulk solids affect
accuracy
Up to 1m/39": ±30mm/1.2"From 1m/39": ±15mm/0.6"0.04% > 10m/33ft)
••
<15m/ 9 ft: ±2mm/0.08";>15m/ 9 ft: ±10mm/0.4"
±2mm/0.08" + 0.17% ofmeasured distance
•
Function may beaffected by
trong build-up formationurface of bulk solidsgrain size/angled surface)
Conductive build-up onthe antennatrong f luidization
Baffles causing interferingeflections
••
•
••
Build-up formationBaffles in the immediate
vicinity of the probeStrong fluidization
••
•
Extreme dust formationExtreme filling noisetrong build-up formation
Surface of bulk solids (grainsize/angled surface)FluidizationBaffles causing interferingreflections
••••
••
Application limits DK <1.6Baffles in the beam coneFilling curtain in the beamcone
Ang led surface/funnel with a ref lecting, smooth
urface
•••
•
DK <1.4Coarse-grained(> 20mm/0.8") andabrasive mediaExtreme tensile forcesMeasurement in thefilling curtain
••
••
Blocking distanceBaffles in the sonic coneFilling curtain in the soniccone
Ang led surface/funnel with areflecting, smooth surface
•••
•
50
FMR244
FMP57
FMU4x
FMU90/95
FDU9x
*At the process connection
6
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Electromechanical levelsystem
Radiometrics
0…+230°C/–4…+ 46°F0. …+ bar/–3…+29psi
Unaffected by processtemperature and pressure
.92…70m/3…230ft (specialesign up to 90m/295ft)
0.05...2m/0.16…6.5ft,cascadable as required
±1% of the measuring range±5cm/ " – FMM50± .5cm/1" – FMM20
±1% of the measuringrange
•
Strong build-up formation Wear due to abrasion ofmech. componentsBurying due to collapsingproduct accumulation
Extreme build-upformationPressure fluctuation
•
•
Extreme tensile forcesif the risk of collapsingproduct accumulation on
wal ls preva ilsMeasurement duringfilling
Non-contact measurementfrom outside and, there-fore, no application limits
bserve radiationprotection lawsFurther information fromour sales team
•
•
•
FMM50FMG60
Overview of application areasLimits of operating conditions
••
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Notes
8686
A 2. Checklist
You need to know your speci fic application requi re-ments for a correct selection. The checklist oppositeprovides an overview of relevant process data and issupposed to help you to take these into consideration.
If we have not included all of the data, please supple-ment this list with your criteria.
The checklist i s used both for the selection of themeasuring principle and the selection of theinstrument.
TipCopy this checklist and complete it to have all relevantdata readily avai lable for the selection.
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A Name of medium Please complete Notes
Medium Density g/l (kg/m³)
Grain size (min/max) mm/inch
Rel. dielectric constant (DK)
Tacky/build-up forming yes no
Extreme dust formation yes no Abrasive yes no
Condensate formation yes no
Corrosive yes no
Non-contactmeasurement
yes no
ApplicationsDrawingavailable
Silos/bunkers yes no
yes no
Stockpiles yes no
Mechanical conveyor systems(e.g. conveyor belt)
yes no
Crusher yes no
Processconditions
Fluidization yes no
Pneumatic filling yes no
Product accumulation on walls yes no
Formation of angled surfaces,outflow funnels
yes no
Max. measuring distance m/feet
Process data Process pressure min. max.
Temperature at the housing min. max.
Temperature at the process connection min. max.Process temperature min. max.
Processconnection
Threaded connection yes no
Flange yes no
Size Ø
Pressure requirements min. max.
Hygiene requirements yes no
InstallationObserve max. ceilingload in contactingmeasuring methods
Concrete ceiling yes no
Thickness of concrete ceiling mm/inch
Electricconnection
2-wire 4...20mA yes no
4-wire DC, AC yes no
Surfacerequirements
FDA-listed materials yes no
Approva ls Ex (dust/gas) yes no
Specialrequirements
Extreme external vibration yes no
Digitalcommunication
PROFIBUS® PA, Profibus® DP,HART®, FOUNDATION™ f ieldbus
Other items
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3. Selection of measuring principle according to application
Our proposal
Radar Micropilot M
ltrasonicsProsonic S/M
Advantages Unaffected by the density of bulk solids,temperature, humidity and filling noiseFor corrosive and abrasive mediaEasy installation for large measuringranges
•
••
eparate instrumentationConnection of up to 10 sensors
Attractive price, e. g. silo farmsSelf-cleaning effect of sensorsCorrosive and abrasive mediaRelay output for point levelsUnaffected by the density of bulk solids,humidity and dielectric constant
•••••••
Technical dataConnection
Accuracy Process temperature*Process pressureMin. DK valueProcess connection
Maximum measuringrange
•
•••••
•
-wire ( -20mA HART®, PA, FF)
±15mm/±0.6"–40…+ 00°C/– 0…+392°F–1…+16bar/–14.5…+23 psi1.6DN80, DN100, DN150, DN200, DN 50,
Assembly bracket 70m/ 30ft
2-/ -wire ( -20mA HART , DP, PA, FF)
± mm/±0.08" +0.17% of measured distance– 0…+150°C/– 0…+302°F–0.3…+3bar/–4.4…+44psi—Threads, f langes (DIN, ANSI, JIS), wall andassembly arm, assembly bracket 70m/230ft
Application limits DK value <1.6
Low density(<10g/l)Risk of strongbuild-upformation
Ang led surface/funnel witha reflecting,smooth surface
•
•
•
•
ultrasonics,electrom. levelsystemelectrom. levelsystemuse of purge airultrasonics
guided radar,electrom. levelsystem
Temperatures>150°C/302°FMedia with strongdust formation duringfilling Extreme filling noise
Ang led surface/funnel with a reflecting,
mooth surfaceMeasuring range>35m/110ft inpowdery products
•
•
••
•
adar, electrom.level systemadar,
guided radar
adar, guided radaguided radar,electrom. level ystemadar, guided rada
electrom. level ystem
R250 FMR244
FMU90/95
FMU xFDU93
(separated) (compact)
FDU95
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*At the process
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Silos/bunkersFilling via mechanical or pneumatic conveyanceMeasurement freely into the siloFluidization possible
•••
Our proposal
uided radarLevelflex
Electromechanical level systemSilopilot
Unaffected by silo geometries and the shape of theangled surfacesUnaffected by the density of bulk solids,temperature, humidity and filling noiseUnaffected by dust, e.g. in pneumatic filling
Unaffected by low density of bulk solidsand DK valueEasy installation
•
•
/ -wire (4- 0mA HART®, PA, FF)
15m/ 9 ft: ±2mm/0.08"; >15m/ 9ft: ±10mm/0.4"40…+150°C/–40…+30 °F1…+16bar/–14.5…+23 psi4", 1½", DN40...DN150
5m/148ft
4-wire, 4-20mA, relay
± .5cm/±1" (FMM 0), ±5cm/± " (FMM50)–20…+230°C/–4…+446°F–0.2...+2bar/–3…+ 9psi—DN100 PN16 (hole size)
70m/230ft (special design up to 90m/295ft)
Abrasive, grained, lumpyproducts (> 0mm/0.8"),probe damageMax. tensile forces onthe rope = 35kN(observe ceiling load)Extreme build-upformation on the probeHigh temperatures>150°C/302°FDK <1.4
Measuring range > 45m/148ft powdery productsLow density (<10g/l)
radar,ultrasonics
radar, ultrasonics,electrom. levelsystemradar with purge ai r,ultrasonicsradar, electrom. levelsystemultrasonics, electrom.level systemradar, electrom. levelsystemelectrom. levelsystem
Risk of weightbeing buriedtrong
mechanical wear to beexpectedMeasurementduring filling
•
•
•
radar, ultrasonics
radar,ultrasonics
guided radar, radar,ultrasonics
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ided radar continued on Page 100
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3. Selection of measuring principle according to application
Radar Micropilot M
UltrasonicsProsonic S/M
Advantages Unaffected by the density of bulk solids,temperature, humidity and filling noiseFor corrosive and abrasive mediaEasy installation for large measuringranges
•
••
Separate instrumentationConnection of up to 10 sensors
Attractive price, e. g. silo farmsSelf-cleaning effect of sensorsCorrosive and abrasive mediaRelay output for point levelsUnaffected by the density of bulk solids,humidity and dielectric constant
•••••••
Technical data
Connection Accuracy Process temperature*Process pressureMin. DK valueProcess connection
Maximum measuringrange
••••••
•
-wire ( -20mA HART®, PA, FF)±15mm/±0.6"–40…+ 00°C/– 0…+392°F–1…+16bar/–14.5…+232psi1.6DN80, DN100, DN150, DN200, DN 50,assembly bracket 70m/230ft
-/ -wire (4-20mA HART ®, DP, PA, FF)±2mm/±0.08" +0.17% of measured distance–40…+150°C/–40…+30 °F–0.3…+3bar/– . …+44psi—
hreads, f langes (DIN, ANSI, JIS), wall andassembly arm, assembly bracket 70m/ 30ft
Application limits DK value <1.6
Low density(<10g/l)Risk of strongbuild-upformation
Ang led surface/funnel with areflecting, smoothsurface
•
•
•
•
ultrasonics,electrom. level ystemelectrom. level ystemuse of purge airultrasonics
guided radar,electrom. level ystem
Temperatures>150°C/30 °FMedia with strongdust formation duringfilling Extreme filling noise
Ang led surface/funnel with a reflect ing,smooth surfaceMeasuring range>35m/110ft inpowdery products
•
•
••
•
radar, electrom.level systemradar,guided radar
radar, guided radaguided radar,electrom. levelsystemradar, guidedradar, electrom.level system
R250 FMR244
FMU90/95
FMU xFDU93
(compact)
FDU95
*At the process
connection
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(separated)
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Slim, narrow silos, vesselsFilling via mechanical or pneumatic conveyanceMeasurement freely into the siloFluidization possible
••••
Our proposal
Guided radaLevelflex
Electromechanical level systemSilopilot
Unaffected by silo geometries and the shape of theangled surfacesUnaffected by the density of bulk solids, temperature,humidity and filling noiseUnaffected by dust, e.g. i n pneumatic fill ing
Unaffected by low density of bulk solidsand DK valueEasy installation
•
•
/ -wire ( -20mA HART , PA, FF)15m/ 9ft: ±2 m/0.08"; >15m/ 9 ft: ±10mm/0. "0…+150°C/– 0…+302°F
1…+16bar/–14.5…+232psi4", 1½", DN40...DN150
5m/148ft
4-wire, 4- 0mA, relay ± .5cm/±1" (FMM20), ±5cm/±2" (FMM50)– 0…+230°C/–4…+446°F–0.2...+ bar/–3…+29psi—DN100 PN16 (hole size)
70m/230ft(special design up to 90m/ 95ft)
Abrasive, g rained, lumpyproducts (> 20mm/0.8"),probe damageMax. tensile forces onthe rope = 35kN(observe ceiling load)Extreme build-up formationon the probeHigh temperatures> 150°C/302°FDK <1.4
Measuring range > 5m/1 8ft powdery productsLow density (<10g/l)
radar,ultrasonics
radar, ultrasonics,electrom. level system
radar with purge air,ultrasonicsradar, electrom. levelsystemultrasonics, electrom.level systemradar, electrom. levelsystemelectrom. level system
Risk of weightbeing buriedStrongmechanical
wear to beexpectedMeasurementduring filling
•
•
•
radar, ultrasonics
radar,ultrasonics
guided radar,radar, ultrasonics
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ided radar continued on Page 100
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D
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3. Selection of measuring principle according to application
93
B
Mechanical conveyor systems(e.g. conveyor belts)
Monitoring of belt load
Monitoring of feed pointsStrong abrasion ( non-contact)Fast response times required
Vibration possible
•
••••
Our proposal
Radar Micropilot M
UltrasonicsProsonic S/M
Advantages Unaffected by the density of bulksolids, temperature, humidity, fillingnoise and weatherimpairment Purge air connection is standard(FMR 50)
Easy installation with alignmentfacility
•
•
•
Separate instrumentationSelf-cleaning effect of sensorsRobust sensor (vibration)Relay output for point levelsUp to 3 measurements/secEasy assembly under conveyor belt
derricks (overall size) and above theconveyor belt/crusher
••••••
Connection Accuracy Processemperature*
Process pressureMin. DK valueProcess connection
Maximummeasuring range
•••
•••
•
2-wire (4- 0mA HART®, PA, FF)±15mm/±0.6"– 0…+200°C/–40…+392°F
–1…+16bar/–14.5…+232psi1.6DN80, DN100, DN150, DN200, DN250,assembly bracket 70m/230ft
2-/ -wire ( -20mA HART , DP, PA, FF)± mm/±0.08" +0.17% of measured distance– 0…+150°C/– 0…+302°F
–0.3…+3bar/–4 4…+44psi—Threads, f langes (DIN, ANSI, JIS), wall andassembly arm, assembly bracket 70m/230ft
Application limits DK value <1,6Risk of build-upformation
Strong vibration,poor access tothe instrument Fastmeasurement> 1 measure-ment/s
••
•
•
ultrasonicsuse of purge airultrasonics
ultrasonics,separatedinstrumentationultrasonics,separatedinstrumentation
Observe blocking distanceStrong vibration, please use separatedinstrumentation
••
50 FMR244 FMU xFDU91
separated) compact)
FDU92
MU90/95
*At the process
connection
S t o c k p i l e s ,
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3. Selection of measuring principle according to application
rusherMonitoring of crusher levelStrong abrasion ( non-contact)
High mechanical load ( non-contact)Fast response times required
Vibration possible
••
•••
Our proposal
Radar Micropilot M
UltrasonicsProsonic S
Advantages Unaffected by the density of bulksolids, temperature, humidity, fillingnoise and weather impairment Purge air connection is standard(FMR 50)Easy installation with alignment facility
•
•
•
Separate instrumentation recommended Attract ive measuring point priceSelf-cleaning effect of sensors, unaffectedby build-up
Addit ional point levels, programmableRobust sensor (vibration)Easy assembly under conveyor beltderricks (overall size) and above theconveyor belt/crusher
•••
•••
Connection Accuracy Process temperature*Process pressureMin. DK value
Process connection
Maximummeasuring range
•••••
•
•
2-wire (4- 0mA HART®, PA, FF)±15mm/±0.6"– 0…+200°C/–40…+392°F–1…+16bar/–14.5…+232psi1.6
DN80, DN100, DN150, DN 00, DN250,assembly bracket 70m/230ft
2-/ -wire (4-20mA HART , DP, PA, FF)± mm/±0.08" +0.17% of measured distance– 0…+150°C/– 0…+302°F–0.3…+3bar/–4 4…+44psi—
Threads, f langes (DIN, ANSI, JIS), wall andassembly arm, assembly bracket 70m/230ft
Application limits DK value <1,6Risk of build-upformation
trong vibration,poor access tothe instrument
••
•
ultrasonicsuse of purge airultrasonics
ultrasonics,eparated
instrumentation
Possibly protection against mechanicaldamage (e.g. mount higher or protect bya grid)
•
250 FMR244 FDU93
(separated)
FDU92
FMU90/95
*At the process connection Please note:
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4. Instrument selection within the measuring principle
Radar
Required application dataMeasuring range (min/max)DK value of the medium (DK)/mediagroupGrain sizeNozzle diameter/nozzle height Pressure and temperature
Application limits for level meas-urement by radar instruments inbulk solids
T < -40°C/-40°F orT > 200°C/392°Fp > 16bar/232psiMeasuring range >70m/230ft Dielectric constant < 1.6e.g. Aerosil, PerliteProcess connection <DN80/3"
••
•••
•
•••
•
Dielectric constant (DK)The reflection properties of a mediumare determined by the DK value.The following table describes theallocat ion of different DK values togroups of media. For very loose orloosened bulk solids, the respectivelylower group is applicable.
Media group DK value Examples
A 1.6…1.9 Plastic granulate, white lime, specia l cement, sugar
B 1.9…2.5 Cement, gypsum
C 2.5…4 Cereal, seeds, ground stones, sand
D 4…7 Naturally moist (ground) stones, ores, salt
E >7 Metal powder, carbon black, carbon dust
Reduction of the max. possible measuring range by:Media with poor ref lection properties (low DK value)Large angle of reposeExtremely loose surface of bulk solids, e.g. bulk solids with a low density in pneumatic filling. Please use therespectively lower media group in th is caseBuild-up formation (particularly if moisture is present in the process)
FMR244 in solidsPlease use FMR244 with “microwave module enhanced dynamics” (Option F) in solids applications together withthe DN80 horn antenna.
FMR240 in solidsPlease use FMR240 with “microwave module enhanced dynamics” (Option F) in solids appl ications together witha 100mm horn antenna.
•••
•
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RadarNon-contact, maintenance-free measurementUnaffected by product properties like density
Unaffected by temperature, fil ling noise and dust development Unaffected by vessel materialsFreely adjustable measuring range
••
•••
Micropilot MHorn / parabolic antenna
Micropilot M100mm horn antenna
Micropilot MClosed
orn antenna
Typicalapplications
ilos, open stockpiles with highly dust-generating mediaStockpiles, bunkers
with measuring ranges>15m/ 9ft High, narrow silos/cellsHigh temperatures up to
00°C/392°F Very abrasive bulk sol ids
•
•
••
•
Silos, vessels, bunkers,stockpiles up to 30m/98ft Temperatures up to150°C/30 °F
Very abrasive bulk sol ids
•
•
•
Smaller silos, vessels,bunkers, stockpiles up to15m/ 9ft
Very abrasive bulk sol ids
•
•
Special features For small nozzledimensions (horn)Precise beam focusing inhigh, narrow silos/cellsparabolic)ptional alignment
acility Purge air connection isstandard
•
•
•
•
Optional alignment seal with flange version
• Plastic horn, metalizedOptional alignment sealOptional assemblybracket
•••
Technical DataProcess pressureProcess temperature*
Antenna typ
Max. MeasuringrangeDK value
Accuracy Process connection
Process-contactingaterials
•••
•
•••
•
–1…+16bar/–1 .5…+ 32psi–40…+200°C/–40…+392°FHorn: DN80, DN100Parabolic: DN200, DN25050m/16 ft (horn)70m/ 30ft (parabolic)1.6±15mm/0.6"Thread 1½ (G, NPT)DN80…DN250/3"…10"DN 00…DN 50/8"…10"316L /1.4435/1.440
–1…+ 0bar/–1 .5…+580psi– 0…+150°C/– 0…+302°FHorn DN100
30m/98ft 1)
1.6±15mm/0.6"DN100…DN150/ "…6"
316L /1.4435/1. 404
–1…+3bar/–14.5…+23 psi–40…+80°C/– 0…+176°FHorn, plated with PP
15m/ 9 t 1)
1.6±15mm/0.6"
Assembly bracket DN80…DN250/3"…10"
PBT, PP
FMR250 FMR 44
At the process connection
FMR 4
1) Use microwave module enhanced dynamics (Option F)
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Installation instructions – radar
InstallationNot centered [3]Not above filling curtain [4]Distance to the wall [1]: ~ 1/6 of vessel diameter, at least however20cm/7.9"
Weather protection cover [2] Always recommended for insta llat ion outside (solar rad iation andrain)
Connection for purge air or plating Connection for purge air:FMR250, already integrated. In case of strong dust generation,
clogging of the antenna is avoided. Not possible for FMR244Horn plating:FMR250, FMR240, see accessoriesFMR244, already integrated PP plating of the horn, avoids clogging
Baffles in vesselsMake sure that baf fles [1] like limit switches, struts, etc. arenot within the beam cone (see also the beam angle table in th isrespect (next page))Symmetrically arranged baffles [2], e.g. discharge aids etc. mayimpair measurements
Optimizing measures
Size of antenna: The larger the antenna the smaller the beam angleand the lower the interfering echoesInterference echo suppression: Electronic suppression of interferingechoes optimizes the measurement Inclined installed metallic plates [3] disperse the radar signals andreduce interfering echoes
Alignment Serves the avoidance of interfering ref lection and improvedmeasurement since the measurement can be aligned to the angleof repose
An a lignment of the instrument is recommendedFMR250, with optional alignment deviceFMR244, FMR240 with optional alignment seal or assemblebracket
•••
•
•
•
•
•
•
•
•
•
•
Variable al ignment with optional a lignment sea l Assemble bracket
4. Instrument selection within the measuring principle
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Measurement in plastic vesselsIf the external wal l of the vessel consists of a non-conductive material (e.g. GFK), microwaves may alsobe reflected by external interfering sources, e.g.
Metal lines/pipesConductorsGrids
Ensure during installation that the beam cone ofthe radar inst rument for bulk solids is free of anyinterfering sources.
•••
Beam angleThe beam angle is defined as the angle at which the energy density of the radar waves assumes hal f the value ofthe max. energy density (3dB width).
Radar waves are also emitted outside of the beam cone and may be reflected by interfering sources.Cone diameter W in dependence on the type of antenna, beam angle ( ) and distance D.
Size ofantennaFMR244
Horn antenna80mm/3"
Beam angle 10°
Size ofantennaFMR250
Horn antenna Parabolic antenna
80mm/3" 100mm/4" 200mm/8" 250mm/10"
Beam angle 10° 8° 4° 3.5°
Distance (D) Cone diameter (W)
80mm/3" 100mm/4" 200mm/8" 250mm/10"
5m/16ft 0.87m/2.8ft 0.70m/2.24ft 0.35m/1.12ft 0.3m/0.98ft
10m/32ft 1.75m/5.6ft 1.40m/4.48ft 0.70m/2.23ft 0.61m/2ft
15m/49ft 2.62m/8.57ft 2.10m/6.85ft 1.05m/3.42ft 0.92m/3.01ft
20m/65ft 3.50m/11.37ft 2.80m/9.09ft 1.40m/4.54ft 1.22m/4ft
30m/98ft 5.25m/17.15ft 4.20m/13.71ft 2.10m/6.84ft 1.83m/6ft
40m/131ft 7.00m/22.92ft 5.59m/18.32ft 2.79m/9.15ft 2.44m/8ft
50m/164ft 8.75m/28.7f t 6.99m/22.94ft 3.50m/11.45f t 3.06m/10.04ft
Size ofantennaFMR240
Horn antenna100mm/4"
Beam angle 8°
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4. Instrument selection within the measuring principle
Guided radar
Required application data
Level measurement Measuring rangeConsider ceiling load by max. tensi le forceat the point of measurement Calculation of tens ile force by Endress+HauserDK value (DK) of the product Pressure and temperatureResistance requirementsExisting nozzle diameter:DN, PN, nozzle height
••
•••••
Application limits for Levelf lex
guided level radarT <–40°C/–40°F and T >150°C/302°F(higher temperatures upon request)p >16bar/232psiMeasuring range > 45m/148ft(longer upon request)Dielectric constant <1.4
Dielectric constant (DK)The reflection properties of a medium are determinedby the dielectr ic constant (DK).
•
••
•
Media group DK Typical bulk sol ids
Max. measur ing range
Metallic uninsulatedprobes
PA-coated ropeprobes
1* 1.4…1.6 Plastic powder• 20…25m/66…82ft —
2 1.6…1.9
Plastic granulates White lime, specialcement Sugar
••
•
25…30m/82…99ft 12.5…15m/41…49ft
3 1.9…2.5Cement, gypsum• 30…45m/99…148ft —
Flour• — 15…25m/49…82ft
4 2.5…4
Cereal, seeds• — 25…30m/82…99ft
Ground stonesSand
•• 45m/148ft 25…30m/82…99ft
5 4…7Naturally moist(ground) stones, oresSalt
•
•45m/148ft 35m/110ft
6 >7Metal powderCarbon black Carbon dust
•••
45m/148ft 35m/110ft
*Media group 1: Take into account restrictions for strongly damping mediae.g. ground material, wheat bran, silicic acid
! FMP56 max. measuring range: 12m/39ft For very loose or loosened bulk solids, the respectivelylower group is applicable.Reduction of the max. possible measuring range by:
Extremely loose surface of bulk solids, e.g. bulksolids with a low density in case of pneumaticfilling Build-up formation, particularly of humid products.
•
•
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Guided radarUnaffected by product surface (e.g. angled surface)Unaffected by baffles in the silo
Addit ional safety for measurements by EoP* 1 evaluationSafe measurements also during fi lling
••
••
Levelflex Levelflex
Typicalapplications
Powdery solidsPlastic granulatesHigh and narrow silosReflecting surfaces
••••
Powdery and grained bulk solidsPlastic granulatesHigh and narrow silosReflecting surfaces
••••
Special features Exchangeable probes (rope)Coated rope probes (for cereal,flour)Measurement during filling
••
•
Exchangeable probes (rod, rope)Coated rope probes (for cereal,lour)
Measurement during filling
••
•
Technical DataProcess pressureProcess temperature*Max. Measuring rangerope proberod probeDK value
Accuracy
Process connectionProcess-contacting materials
•••
••
••
–1…+16bar/–1 .5…+ 32psi–40…+1 0°C/–40…+ 48°F
12m/39 t —1.<15m/ 9 t: ±2mm/0.08";>15m/ 9ft: ±10mm/0.4"¾" (G, NPT), adapter flange304, 1.4301
–1…+16bar/–1 .5…+580psi–40…+150°C/–40…+302°F
45m/1 8ft 4m/13ft 1.<15m/ 9ft: ± mm/0.08";>15m/ 9 t: ±10mm/0.4"1½" (G, NPT), flange304, 1.4301
FMP5
*1 The patented End-of-Probe (EoP) algorithm enables Levelf lex to provide accurate and reliable levelmeasurement in media with a low DK value (flour, cement, lime, PE granulates, PP granulates and variouspowders) also during pneumatic filling and fluidized discharge
*2 At the process connect ion
FMP5
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4. Instrument selection within the measuring principle
Installation instructions – guided radar
Probe selection
Use rope probes for bulk solids in normal circumstances. Rod probes are only suited to short measuring rangesup to approx. 2m/6.5ft in bulk solids. This is part icularly true for applications in which the probe is installedlaterally and inclined and only for light and free-flowing bulk solidsIn case of large si los, the lateral load on the rope may be so high t hat a rope with a plast ic jacket must be used.
We recommend a PA-coated rope for milled products l ike cereal, wheat and f lour
•
•
Installation in concrete silosIn concrete silos, the largest possible distance [B] of the probe tothe concrete wall - min. 0.5m/19.7" - is to be observed.
The installation into a concrete ceiling must be flush with itsbottom edge
Expansion of rope probes by tension and temperature6mm/0.23" rope probe- Elongation by tension: At max. permissible tensile load (30kN)
= 13mm (0.5")/m rope length- Elongation by temperature increase from 30°C/86°F
to 150°C/302°F = 2mm (0.08")/m (ft) rope length4mm/0.16" rope probe- Elongation by tension: At max. permissible tensile load (12kN)
= 11mm (0.4")/m rope length- Elongation by temperature increase from 30°C/86°F
to 150°C/302°F = 2mm (0.08")/m rope length
•
•
•
•
InstallationDo not install rod and rope probes in the filling curtain [2]Insta ll rod and rope probes at a distance to the wall [B], so thatin case of build-up on the wal l a distance to the probe of at least100mm/4" remainsInstall rod and rope probes with the largest possible distance tobaff les. In case of distances < 300mm/12", an interference echosuppression must be included in commissioning
When rod and rope probes are insta lled in plast ic vessels, theminimum distance of 300mm/12" is also applicable to metallicparts outside of the vesselRod and rope probes may not contact metal vessel walls or bottoms.The minimum distance of the probe end to the bottom of the
vessel i s applicable [C]: > 10mm/0.4".For exceptions see the section “Fixation of rope probes”
Avoid bending the rope probe sharply dur ing insta llat ion oroperation (e.g. by product movements against the wall of the si lo)by the selection of a suitable point of instal lation
Weather protection cover [1] Always recommended for insta llat ion outside (solar rad iation andrain)
••
•
•
•
•
•
Metal
100mm/4" 100mm/4"
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Fixation of rope probes
The fixat ion of the probe end may be required ifotherwise the probe contacts the silo wall, thecone, the baff les/struts or other parts at t imes orif the probe converges closer than 0.5m/19.7" toa concrete wall. The probe weight provides aninternal thread for this purpose:– 4mm/0.16" rope:
M 14– 6mm/0.23" rope:
M 20
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Tensile loadBulk solids exert tensi le forces on rope probes. Theirintensity increases with:– The length of the probe or max. cover– The density of the product– The diameter of the silo and– The diameter of the probe ropeThe following diagrams show typical loads infrequently occurring bulk solids as reference values.The calculations take the following conditions intoaccount:– Freely suspended probe (end of probe not fixed)– Freely flowing bulk solids (mass flow).
The core flow cannot be calculated.In case of collapsing product accumulationon walls higher loads may occur
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The tensile force values contain a safety factor of2 (compensation of the fluctuation range in freelyflowing bulk solids)Since the tensile forces largely depend on the flowproperties of the product, a higher safety factoris required for sluggishly flowing products andif a risk of product accumulation on walls exists.Use rather a 6mm/0.23" rope than 4mm/0.16" incritical casesThe same forces also act on the ceiling of silos. Thetensile forces are larger on fixed ropes, but theycannot be calculated. Please observe the tensile-loaded capacity of the probes or ensure that thiscapacity is not exceededIf the max. tensile load is exceeded, please verify
whether a non-contact ult rason ic or level radarinst rument should be used for the application
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Please use preferably the 6mm/0.23" rope probe
because of its higher tensile-loaded capacity whenfixing a rope probeThe point of fixation must either be reliablygrounded or reliably insulated. If a fixation withreliable grounding is not possible, the insulated lugoffered as an accessory may be usedThe rope must be loose to avoid extremely hightensile loads and the risk of breakage. Adjust therope to a length which exceeds the requiredmeasuring range so that the rope slackens in the
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Slackeningof therope:
probe length Reliably insulated
point of fixation:Reliably g roundedpoint of fixation:
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4. Instrument selection within the measuring principle
Ultrasonics
Required application data
Measuring rangeProduct grain sizeProduct surface (soft, hard)Dust-generating product (strong, low)Filling curtain in the measuring rangeNozzle diameter/nozzle heightPressure and temperature
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Application limits for u ltrasonic level
measurement in solidsT <–40°C/–40°F and T >150°C/302°Fp < –0.3bar/–4.4psi and p > 3bar/44psi (relativ)Measuring range <70m/230ft (ideal conditions)Process connect ion <1½"Strong temperature fluctuations in the measuringrange can affect the accuracy
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Range calculation and sensor selection Prosonic S FDU9x
Example (for FDU92):Product surfacehard, rough: +40dBLow dust generation: +5dBSmall quantities of filli ng curtainin the detection range: +5dB
Total: +50dB range approx. 8m/26ft from diagram
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Damping caused by process
Product surface
Hard, rough (e.g. g ravel) 40dB
Soft (e.g. peat,dust-covered clinker)
40…60dB
For different applications, the max. measuring distance can be estimated from the sum of dampings (dB)and the range diagram (see also example below).
Filling curtain in the detection range
None 0dB
Small quantities 5dB
Big quantities 5…20dB
Dust
No dust generation 0dB
Low dust generation 5dB
Strong dust generation 5…20dB
-temp. sensor product surface
Up to 20°C/68°F 0dB
Up to 40°C/104°F 5…10dB
Up to 80°C/176°F 10…20dB
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Sensor alignment
Angled surfaces are formed in silos for bulk solids.These cause the ultrasonic signal to be laterallyreflected which can lead to a reduced signalintensity
Remedial measures:The sensors should be aligned as verticallyas possible in relation to the product surfaceThis is faci litated by the FAU40 alignment deviceor the assembly bracket
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Advantages
Non-contact, maintenance-free measurement Unaffected by product properties, e.g. DK value,density, etc.Calibration without filli ng or discharging Self-cleaning effect of sensors due to movedsensor diaphragmSeparate instrumentation options in rough ambientconditionsCost-effective instrumentation for silo farms
with FMU95 multichannel system
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Range calculation and sensor selection Prosonic M FMU4x
Example (for FMU43):Product surfacehard, rough: +40dBLow dust generation: +5dBSmall quantities of filli ng curtainin the detection range: +5dB
Total: +50dB range approx. 7m/23ft from diagram
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Installation withassembly bracket forProsonic M
FAU40 forProsonic S
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4. Instrument selection within the measuring principle
Ultrasonics
Non-contact and maintenance-free measurement Unaffected by dielectric constant, density or humidityUnaffected by build-up due to the self-cleaning effect ofensors by diaphragm vibration
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Prosonic SFMU9x
FDU90 FDU91 FDU91F FDU92 FDU93 FDU95 FDU96
Typicalapplications
Measurement of coarse to fine-grained materials in silos, on belts, stockpiles and in crushersMeasurement under rough process conditions (vibration, bui ld-up, corrosion, abrasion)Measurement in low structural heights
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Special features eparate instrumentation up to 300m/984 t Up to 6 additional point level, alarm outputs
Automatic recognit ion of connected sensorsUp to 10 sensors can be connected attractive price in silo farms
20mA HART or Profibus® DP
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Technical Data FDU90 FDU91 FDU91F FDU92 FDU93 FDU95 FDU96
Process pressurefrom -0.3/- . …
• +3bar/+ 4psi
+2bar/+29psi
+0.5bar/+7. psi
+2bar/+29psi
Processtemperature*from - 0…
• +80°C/+176°F
+80°C/+176°F
+105°C/+221°F
+95°C/+203°F
+95°C/+203°F
+80°C/+176°F *
+150°C/+302°F
Max. Measuringrange
• 1.2m/3.9ft
5m/16ft 5m/16ft 10m/32ft 15m/ 9 ft 45m/150ft 70m/ 30ft
Blockingdistance
• 0.07m/0. 3ft
0.3m/1ft 0.3m/1ft 0.4m/1,3 ft 0.6m/ ft 0.6m/ ft(0.9 //2.9ft* 1)
1.6m/5.2 t
Accuracy • ± mm/0.08" +0.17% of measuring distance
Processconnection
• 1", 1½" 1" 1”, Tri-Clamp,collar flange
1" 1" 1" 1"
Process-contactingmaterials
• PVDF PVDF 316L PVDF UP, Alu,PTFE
UP, 316L* 1, PE UP, Alu,PTFE
Beam angle• 12° 9° 12° 11° 4° 5° 6°
FMU90/95
Field housing op-hat rail
*At the process connection * 1 High temperature = 150°C/30 °F
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CProsonic MFMU4x
FMU40 FMU41 FMU42 FMU43 FMU44
Typicalapplications
Measurement from coarse to fine-grained materials in recipient tanks, on belts at feedpointsMeasuring range up to 10m/32ft
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Special features Compact instrumentation (2 or 4-wire) Attractive priceRobust aluminum housing
4 20mA HART , Profibus®
PA or FF
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•Technical Data FMU40 FMU41 FMU42 FMU43 FMU44
Process pressure• –0.3…+2bar/–4.4…+29psi –0.3…+1.5bar/–4.4…+22psi
Processtemperature*
• –40…+80°C/–40…+176°F
Measuring range(solid)
• 2m/6ft 3.5m/11ft 5m/16ft 7m/ 2ft 10m/3 ft
Blocking distance• 0.25m/0.8ft 0.35m/1.15ft 0.4m/1.3ft 0.6m/2ft 0.5m/1.6ft
Accuracy • ± mm/0.08" o. 0. % ofmeasuring distance* 2
± mm/0.15" of 0. % of measuring distance*
Processconnection
• 1.5" 2" DN80/3";DN100/ ";DN150/6"assembly bracket
DN100/ ";DN150/6";DN 00/8"assembly bracket
DN100/ ";DN150/6";DN200/8"assembly bracket
Process-contactingmaterials
• PVDFEPDM
PVDFEPDM
PVDFEPDM o. Viton,flange PP, PVDF,316L
UP/316L, EPDM,flange PP, PVDF,316L
PVDFEPDM o. Viton,flange PP, 316L
Beam angle• 11° 11° 9° 6° 11°
*2 The higher value is applicable*At the process connection
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4. Instrument selection within the measuring principle
Installation instructions – ultrasonics
InstallationNot centered [3]Not above filling curtain [4]Distance to wa ll: ~ 1/6 of the vessel d iameter, at least however20cm/7.9" [1]If 2 or several sensors are used in one vessel, please use separateinstrumentation (FMU90/95 + FDU9x)
Weather protection cover [2] Always recommended for insta llat ion outside (solar rad iation andrain) – Prosonic M
NozzleThe sensor diaphragm should protrude from the nozzle. If this isnot possible, please compare the dimensions of the nozzle with thetable: Nozzle length (next page)
Measuring rangeMeasurement is possible up to the blocking distance (BD) on principleThe measuring range starts where the ultrasonic lobe meets thebottom of the silo. In dished or torispherical heads or conicaloutlets, levels below this point cannot be detected
Silo bafflesMake sure that baf fles [1] like limit switches, struts, etc. arenot within the beam cone (see also the beam angle table in th isrespect [ )Symmetrically arranged baffles [2], e.g. discharge aids etc. mayimpair measurements
Optimizing measuresUse a sensor with a smaller beam ang le. The smaller the beamangle the lower the occurrence of interfering echoesInterference echo suppression: Electronic suppression of interferingechoes optimizes the measurement Plates installed in an inclined manner [3] disperse the signal andcan avoid interfering echoes
Alignment Serves the avoidance of interfering reflections and improvedmeasurements since the measurement can be aligned to theangled surface (accessory FAU40 or assembly bracket)
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FMU40 FMU41 FMU42 FMU43 FMU44 FDU90 FDU91 FDU91F FDU92 FDU93 FDU95 FDU96
Beamangle
11° 11° 9° 6° 11° 12° 9° 12° 11° 4° 5° 6°
Lmax (m/ft) 2/6 3.5/11 5/16 7/22 10/32 1.2/3.9 5/16 5/16 10/32 15/49 45/150 70/230
rmax (m/ft) 0.19/0.6 0.34/1.1 0.39/1.3 0.37/1.2 1.96/6.4 0.13/0.4 0.39/1.3 0.53/1.7 0.96/3.1 0.52/1.7 1.96/6.4 3.6/11.8
Blocking distance(m/ft)
0.25/0.8
0.35/1.15
0.4/1.3
0.6/2
0.5/1.6
0.07/0.23
0.3/1
0.3/1
0.4/1.3
0.6/2
0.7/2.3(0.9/2.9*)
1.6/5.2
*High temperature = 150°C/302°F
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4. Instrument selection within the measuring principle
Electromechanical level system
Required application dataMeasuring rangeConsider ceiling load by max. tensileforce at the point of measurement Product grain sizePressure and temperatureResistance requirementsNozzle height
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Application limits for t heelectromechanical level system
T < –20°C/–4°F or T > 230°C/446°Fp > 2bar/29psiMeasuring range >70m/230ft Tensile force > 500N
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Model Sensing weight Application Temperature Mater ials
FMM50 Normal weight , cyl indrica l with removable spike
Coarse bulk solids, e.g. coal,ore or stones and granulates
Completetemperature range
Steel,stainless steel
FMM50 Umbrella weight Very light and loose bulk solids,e.g. flour or carbon dust
Max. 100°C/212°F Steel orstainless steel
with PolyesterFMM50 Bag weight Bunkers with mills downstream Max. 100°C/212°F Bag made of
Polyester,stainless steel
FMM50 Cage weight Fine-grained bulk solids Completetemperature range
Steel,stainless steel
FMM50 Oval float Granulates Max. 70°C/158°F Rigid PVC
FMM50 Bell weight Light and loose bulk solids Completetemperature range
Steel,stainless steell
FMM20 Normal weight , cyl indrica l with removable spike
Granulates and compacted bulksolids
Completetemperature range
Steel,stainless steel
FMM20 Normal weight , cyl indrica l Granulates and compacted bulksolids
Max. 70°C/158°F Plastics
FMM20 Umbrella weight Very light and loose bulk solids,e.g. flour or carbon dust
Completetemperature range
Steel orstainless steel
with polyester
FMM20 Bag weight Bunkers with mills downstream Completetemperature range
Polyester,stainless steel
Recommendation concerning the selectionThe following aspects should be observed in the selection of the sensing weight:
The sensing weight may neither sink into the product nor slide off the angled surface during the measur ingoperationThe sensing weight must be able to withstand the chemical properties of the product and the temperatureprevailing in the bunker/silo
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Weight Ex Specia l features
.5kg/8lbs Yes In case of downstream crusher or mill facility--> use “tape breakage” signal function or cage weight
.5kg/8lbs Yes Large square surface--> avoids deep immersion into the product
.25kg/0.5lbs (empty),
.5kg/8lbs (full) Yes Tie the bag so that the content cannot escape
.5kg/8lbs Yes Avoids subsequent damage since the weightcannot enter the discharging facility
.5kg/8lbs (full) Dust-Ex notpermitted
.3kg/9.5lbs Yes If the umbrella cannot be used any more inhigh temperatures or special product properties
.5kg/3.3lbs Yes In case of downstream crusher or mill facility--> use “tape breakage“ signal function
.5kg/3.3lbs Dust-Ex notpermitted
In case of downstream crusher or mill facility--> use “tape breakage” signal function
.5kg/3.3lbs Yes Large square surface--> avoids deep immersion into the product
.25kg/0.5lbs (empty),
.5kg/3.3lbs (fu ll) Yes Tie the bag so that the content cannot escape
Sensing weights FMM201 Stainless steel sensing weight 2 Plastic sensing weight 3 Bag weight 4 Umbrel la weight
Sensing weights FMM501 Cylindrical sensing weight with spike2 Umbrel la weight 3 Bag weight 4 Cage weight 5 Oval float 6 Bell weight
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CSilopilot M
FMM50
Silopilot T
FMM20
Typicalapplications
Bunkers and si los with powdery,fine-grained or coarse-grained bulksolids
• Bunkers and silos for lightbulk solids, e.g. cereals,plastics granulate, powder
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Special features Easy commissioning • Easy commissioning •
Technical dataProcess pressureProcess temperature*
Max. measuring range Accuracy Tensile forceProcess connectionProcess-contacting material
Ambient temperatureElectronics
ApprovalsIngress protection
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–0. …+ bar/–3…+29psi– 0…+230°C/– …+ 46°F
70m/ 30ft ±5cm/±2" or ±1 pulseMax. 500N
n counterflange DN100 PN16 Alu, steel or stainless steel
301 modified, 30 , 316, 316TI),Nomex, PVC–40…+70°C/–40…+158°F
20mA / relay ATEX II 1/ DIP67
–0. …+0.1bar/–3…+1.5psi– 0…+150°C/– …+30 °F
32m/105ft ±2.5cm/±1" or. ±1 pulseMax. 150NOn counterflange DN100 PN16
Alu, steel or stainless steel(301 modif ied, 30 , 316, 316TI)plastic, polyester–40…+60°C/–40…+140°F0/ 20mA / relay / 30 VDC
ATEX II 1/2DIP67
4. Instrument selection within the measuring principle
Electromechanical level system
Unaffected by product propertiesLight bulk solidsUnaffected by DK value
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*At the process connection
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Installation
Not in the filling curtain or in the area of collapsingproduct accumulation on wallsMeasuring point as close to the center of the slopeas possibleThe sensing weight may neither sink into theproduct nor slide off the ang led surface during themeasuring operationMax. angle of inclination °
Weather protect ion cover Always recommended for insta llat ion outside (solarradiation and rain)
Compressed air connection Already integrated and the penet ration of dust canbe avoided in case of strong dust generation
Tank baf flesThe measurement section should not pass baf flesand struts at too close a distance. The measuringtape must not touch any baffles and struts
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*1 Accumulation (product build-up on the wallof the vessel)
*2 Choose a measuring point located approximately in the middle of the slope
Installation instructions – electromechanical level system
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Notes
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Supplementary documentation
Level measurement FA 001F/00/EN SAP: 52027700FA 001F/00/DE SAP: 52027699
DK ManualRelative dielectric constant (DK value) of liquid and sol id mediaCP 019F/00/EN SAP: 71009074CP 019F/00/DE SAP: 71009073
Point level detection in liquids and bulk solidsSelection and engineering guideCP 007F/00/EN SAP: 52027972CP 007F/00/DE SAP: 52027970
Applicator Select ion SoftwareProduct selection guide
www.endress.com/applicator
see also www.endress.com
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