Technical InformationTI234F/00/en

Application• The Prolevel FMB 662 measures level

in liquids using one or two hydrostaticprobes. The transmitter, designed formounting in the field, determines thelevel in two vented tanks, calculatesvolume and monitors limit levels.Differential level measurement is alsopossible.

• Special functions with two probes onone tank: level measurement in onepressurised tank or densitymeasurement of a liquid, levelmeasurement in one vented tank withautomatic compensation for variationsin density.

• System integration via the Rackbus RS-485 interface.

Features and Benefits• Economical transmitter for field

mounting with IP 66 protection• Simple start-up, simple operating

matrix, can be configured byEndress+Hauser operating anddisplay programs

• Reliable operation: function monitoringof probe and transmitter.

Level Measurementprolevel FMB 662

Two-channel transmitter for field mountingFor two hydrostatic probesSystem integration via Rackbus RS-485 interface

Prolevel FMB 662 inIP 66 housing

Hauser+EndressNothing beats know-how

Measuring System

Measuring System• Prolevel FMB 662 and • two Deltapilot hydrostatic pressure

sensors with electronic insert EB 17 Zor EB 27 Z

Hazardous Areas Provided it they are used with a certifiedtransmitter (in preparation) the certifiedsensors can be mounted in thehazardous area.

Differential Functions• Differential measurement between two

levels• Hydrostatic level measurement in a

closed tank:A positive or negative gauge pressurewill occur in a closed tank if there is nopressure compensation withatmospheric pressure. The pressureacting above the water column isalways measured at the bottom of thetank. This requires a Deltapilot to beconnected to the second channelinput which measures only the gaugepressure pe in the tank. The Prolevelsubtracts the gauge pressure from thepressure of the first channel and thuscompensates for the effects of gaugepressure.

• Other functions: density measurementof a liquid or automatic compensationfor variations in density.

Analogue OutputsThe Prolevel transmitter provides astandard 0 to 20 mA signal per channel(switchable to 4 to 20 mA). Dependingupon calibration, this is proportional toeither level or volume. The start and endof the signal range can be programmedas required.

Relay OutputsThe Prolevel is equipped with fiverelays, each with a potential-freechangeover contact. • two sets of two limit relays with

adjustable switch point and hysteresis

Additional System Components ForRackbus RS-485 Interface OptionHardware• RS-485 interface card or RS-232C/

RS-485 converter for connection to apersonal computer

• FXA 675 interface card for connectionto the Rackbus

Software for personal computers• Fieldmanager 485: configuration and

display program for small andmedium-sized plants

• Commugraph: easy-to-usevisualisation program with limit valuedisplay.

Endress+Hauser

PROLEVELFMB662 123.4

1A1B2A2B3

HV

+

E_

1

2

pe

Channel 1

Channel 2

Level measurement in aclosed tank:➀ hydrostatic pressure + pe➁ gauge pressure pe

Hydrostatic levelmeasurement in opentanks➀ with rope probe➁ with Deltapilot asstandard version

2

1

Endress+Hauser

PROLEVELFMB 662 123.4

1A1B2A2B3

HV

+

E_

0/4…20 mA

2

System Integration

Personal ComputerTransmitters equipped with a RackbusRS-485 interface can be connected to apersonal computer via the RackbusRS-485 bus. A measuring system thencomprises:

• Several Prolevel measuring points (or other units with Rackbus RS-485interface)

• PC connection (RS-485 interface cardor a RS-232C/RS-485 converter).

Depending on the system topology, upto 25 transmitters can be connected atvarious points on the bus, which may beup to 1200 m long.

Process Control Systems The Prolevel FMB can be easily andeconomically integrated into existingindustrial process control systems.Individual Rackbus RS-485 buses, eachwith up to 25 transmitters, areconnected to the Rackbus via the FXA 675 interface card (exceptionallyvia Monorack RS-485). A gatewayconnects the Rackbus to standardsupervisory systems such asPROFIBUS, FIP or MODBUS.

Endress+Hauser

PROLEVEL

Endress+Hauser

PROLEVEL

Endress+Hauser

PROLEVEL

➀

➁➁

➂

operating programFieldmanager 485 orCommugraph

Rackbus RS-485

converteror PC-interacecard

➂

➂

Connection to personal computer.Prolevel transmitters arealso available for➀ capacitive probesand as a one-channelunit with separate ➁ limit switch input➂ hydrostatic probe

Endress+Hauser

PROLEVEL

Endress+Hauser

PROLEVEL

Endress+Hauser

PROLEVEL

ZA 673

RACKBUS

PROFIBUS

FXA 675

personal computerwith display andoperating software

programmable logic controller

supervisory system (PROFIBUS or FIP)

Gateway:ZA 673 PROFIBUSZA 674 FIP ZA 672 MODBUS

FXA 675

channel 1

channel 2

field transmitters with RS-485 interface

max.1200 m

Rackbus

Rackbus RS-485

Rackbus RS-485

Integration into processcontrol systems: Two Rackbus RS-485buses can beconnected to theRackbus via theFXA 675 interface card.A gateway connects theRackbus to asupervisory system

3

Operating Principle Hydrostatic Pressure MeasurementHydrostatic pressure is created by theweight of a column of liquid. When thedensity ρ is constant, the pressureacting on the sensor is simply a functionof the height h of the column.

Signal ProcessingThe Prolevel provides the sensors withpower over an unscreened two-wirecable. Every sensor supplies aninterference-free, level proportional,pulse frequency modulated (PFM)signal via the same cable. Themeasured value derived from this signalis displayed at the transmitter andoutput as a standard 0/4…20 mA signal.It may also be read by a Commulog VU 260 Z handheld terminal or passedon to a supervisory system via theoptional Rackbus RS-485 interface.

Function MonitoringThe Prolevel transmitter monitors thecomplete measuring system from thesensor to the outputs. On fault condition:

• the alarm relay de-energises and thecorresponding LED lights

• the current falls to –10 %, rises to+110 % or holds the last value(programmable)

• the limit relays respond according tothe fail-safe mode selected orde-energise (programmable).

Simple Linearisation A linearisation is made by entering avessel characteristic which describesthe relationship between the height hand volume V of the vessel.

The most common application – ahorizontal cylinder – is pre-programmedin the transmitter. A linearisation tablefor any other vessel shape, e.g., a tankwith a conical outlet, can be simplyprogrammed by entering up to 30reference points.

Density MeasurementIf both Deltapilot sensors are coveredand the difference in height betweenthem is known, then the density of theliquid can be calculated from theformula:

The density can be measured in bothclosed and vented vessels. A density-compensated levelmeasurement is only possible in anopen vessel.

p hydrostatic = ρ ⋅ g ⋅ h

ρ = densityg = acceleration due to gravityh = distance between the surface of the

liquid and the centre of the sensordiaphragm

ρ = ∆ p

g ⋅ ∆ h

ρ = density∆p = hydrostatic pressure difference∆h = difference in height

h

atmosphericpressure

phydrostatic

Hydrostatic measurement principle

12

34

56

7

height

volume

Entering a linearisationtable. The vesselcharacteristic isdescribed by 3… 30reference points

Endress+HauserPROLEVELFMB662 123.4

1A1B2A2B

3

HV

+

E_

Deltapilot 2

Deltapilot 1

channel 2

channel 1

density-compensatedlevel density

∆h∆p

Density compensated level measurement invented vessels

4

Selection/Design Transmitter SelectionProlevel can be selected according tothe requirements of the measuring point:

• Economical version without display orkeypad; can be operated by theCommulog VU 260 Z handheldterminal

• Version with display (also illuminated)and keypad

• Version with Rackbus RS-485 interfaceoption for system integration andremote operation of the transmitter.

Prolevel Product FamilyProlevel transmitters are also available :• For two capacitive probes: Prolevel

FMC 662 • As a single channel unit for one

capacitive or hydrstatic sensor withseparate limit switch input, ProlevelFMC 661.

For further information see page 16.

Dimensions

InstallationMountingHousing with protection IP 66:

• For wall-mounting• For post-mounting on a 1” or 2” pipe

(see page 15, , »Accessories«).

An all-weather hood is available formounting in the open (ssee page 15,»Accessories«).

Hazardous AreasProbes and sensors with appropriatecertification may be installed inexplosion hazardous areas. Thetransmitter must always be installedoutside the explosion hazardous area.All local regulations concerninginstallation must be observed

292105 min. 52

201

253

275,5

4,5

distancemin. 69

Dimensions and spacerequired for mountingthe IP 66 housing

Prolevel with displayand keypad

Cost-effective versions without displayor keypad

5

Electrical Connection Terminal StripThe terminal strip, suitable for cablecross-sections up to 2.5 mm2, is locatedin a separate connection compartment.The cable entries are prestamped foreasy removal (5 x Pg 16; 4 x Pg 13.5 atbottom; 4 x Pg 16 at rear).

Power Supply• AC:

85...253 V 50/60 Hz or 20...55 V, 50/60 Hz orDC: 16...60 V (residual ripple withintolerance), integrated reverse polarityprotection

• Power consumption: maximum 7 W.

[EEx ia] IIC [EEx ia] IICRS-485

B DGND A

L+ L-L1 N

L+ L-16

...60

VD

C85

...25

3V

AC

20...

55V

AC

L1 N PE

0/4.

..20

mA

0/4.

..20

mA

Sen

sor1

Sen

sor2R

xD/T

xD-P

RxD

/TxD

-NR

S-4

85

1 2 3 4 5 6 7 81 82 91 923111 21 41

1b1a 2a 2b

51 603212 22 42 52 613313 23 43 53 62

- + - +

DG

ND

2

Inpu

t Lev

el 2

Inpu

t Lev

el 1

Con

nect

ion

sock

ets

for

the

Com

mul

og V

U 2

60 Z

Terminal strip of theFMB 662 – theelectrically isolatedcircuits are indicated bythe blue lines

EB

27Z

EB

27Z

EB

17Z

EB

17Z

2 23 32 11 2

81 9181 9182 9282 92

Del

tapi

lot

Del

tapi

lot

input level 1

safe area

hazardousarea

input level 2

Del

tapi

lot

Del

tapi

lot

Connecting the sensors

6

Hazardous AreasWhen laying cables in hazardous areas,the maximum permissible values for U,I, R, L, C (see Certificate of Conformity)and all local regulations are to beobserved.

Electrical IsolationCurrent output, relay outputs, powersupply, sensor input and bus inputs areelectrically isolated from each other(safe isolation to DIN/VDE 0160).Both sensor inputs are intrinsically safeand electrically isolated from each other.

Overvoltage ProtectionThe external overvoltage protection unitHAW 262 for signal outputs isrecommended for protecting thetransmitter from voltage peaks,especially when it is mounted in thefield. The overvoltage protection unitHAW 261 should be used to protectagainst mains power voltage peaks.

Electromagnetic CompatibilityThe interference immunity of theProlevel has been checked to a teststrength of 10 V/m. The signal deviationover the total frequency range of 10 kHzto 1 GHz is always less than 1 %. Overwide frequency ranges the deviation issignificantly lower.

Bus Installation Rackbus RS-485Normally, up to 25 Prolevel transmitterscan be connected to the bus: the actualnumber depends upon the topologyand conditions of operation. The busconnection requires:

• connecting cable (two-core, twistedand screened)

• cable length: max. 1200 m.

Bus AddressEvery transmitter is given a uniqueaddress which is configured at the DIPswitches at the terminal strip.

Termination For reliable transmission of thecommunication signal:

• set the terminal resistance at the PCboard and the furthest Prolevel fromthe board to 150 Ω.

The bus power is provided by the PCinterface card or RS-232C/RS-485adapter.

1 2 4 8 16 32

150 Ω 392 Ω392 Ω

+5V

(=10)

ONOFF

ONOFF

RS-485 [EEx ia] IICB DGND A

L+ L-L1 N 1b1a 2a 2b

- + - +

termination

bus address

Bus address andterminal resistanceswitch of the Prolevel.The setting shown isstandard for all Proleveltransmitters except thelast one on the bus

7

Bus Installation(continued)

Bus TopologyWhen planning the system, attentionshould be paid to the possiblesegmentation of the bus according toindividual plant sections. Suitabletopologies are:• Serial, max. 1200 m, • Tree of total length 1200 m.The bus screening must have electricalcontinuity throughout the bus.

Personal ComputerA personal computer is connected upusing either a RS-485 PC interface cardor an RS-232C/RS-485 converter (bothwith electrical isolation).

RS-485 PC Interface card The card is configured for use as theCOM 3 interface port. Also supplied forthe bus connection is a 25-pin plug withscrew terminals:

• Terminal 1: Bus screening• Terminal 17: Data A (RxD/TxD-P)• Terminal 16: Data B (RxD/TxD-N).

RS-232C/RS-485 ConverterThe bus connector is supplied with a9-pin plug with screw terminals:

• Terminal 5: Bus screening• Terminal 3: Data A (RxD/TxD-P)• Terminal 8: Data B (RxD/TxD-N).

4 7 123 6 112 5 101 98

PE

13

22 18 1423 19 1524 20 1625 21 17

bus screening

RxD/TxD-P (Data A) RxD/TxD-N (Data B)Wiring the plug for thePC interface card

12345

6

8

9

7

390 Ω390 Ω

bus screening RxD/TxD-P (Data A)

RxD/TxD-N (Data B)

Wiring the plug for theRS-232C/RS-485converter

Master

Rpull

Rt

Master

Rpull

Rt

1 OFFON

606162

2 EOFFON

OFFON

606162606162

1 OFFON

606162

2 EOFFON

OFFON

606162606162

PE

PE

Rt150Ω

Rt150Ω

End unit

End unit

serial structure

tree structure

longer branch

Bus topology.The master is a PCinterface card orconverter61 6362

Data B Data A

internal

Example for wiring thebus to the Prolevel

8

Operation Simple OperationThe six keys on the front panel are usedto configure the instrument or call upmeasured values: parameters are displayed on the 4-digit LC-display.

The transmitter is configured via anoperating matrix, whereby each field isselected by the (vertical) and

(horizontal) keys. Parameters areentered using only three keys ,

,

: pressing the key stores and registers the entered value.

Operating MatrixWhether the Prolevel is configured viathe keypad, with the handheld terminalor remotely via the Rackbus RS-485interface, the easy-to-use operatingmatrix ensures programmingprocedures are uniform and clear. Anin-depth knowledge of Endress+Hauseris not needed instrumentation to quickly configure the transmitter.

Handheld TerminalAll Prolevel transmitters can beoperated by the Commulog VU 260 Zhandheld terminal, which displaysparameters, measured values andoperating status. Its large display givessimple, self-explanatory information onall parameters in the language selectedwhen ordering. The transmittercontinues to measure normally whiledata are entered or read.

V H

+

E

PROLEVEL

Prolevel without keypad.The communicationsockets for theCommulog VU 260 Zhandheld terminal arelocated in theconnection compartment

Prolevel is configuredby entering only a fewparameters

1A1B2A2B3

HV

+

E_

VH0 0

Measuredvalue

Emptycalibration

Fullcalibration

Outputcurrent

Switchpoint

Fail-safemode

Hysteresis Relay atalarm

Lineari-sation

Levelinput mode

TableNo.

Input volume

9

Operating Program

Remote Operation and DisplayProlevel transmitters with a RackbusRS-485 interface can be operated frompersonal computer. Each transmitter isaccessed on-line via its individual busaddress. The operating program usesthe standard operating matrix in whicheach parameter field can be quicklyand easily selected.

Fieldmanager 485 OperatingProgramThe Fieldmanager 485 operatingprogram is a simple, economicalconfiguration and display system forsmall and medium-sized plants. It canrun on any AT personal computerhaving an MS-DOS operating system. A self-explanatory menu, available inEnglish and other languages, offers atotal of nine menus for the following functions:

• Summary of connected and operativetransmitters - the so-called live list

• Selection of the Prolevel transmitters• Configuration and calibration of the

transmitters via the operating matrix• Presentation of measured values as

moving columns• Back-up of configurations by the

up/download functions• Setting of the COM port• Terminal program for on-line

communication with individualtransmitters.

F1: Dev0...31F2: Dev32...63

F3: Dev AddrF4: COM-Port

F5: EnvelopeF6: Matrix

F7: BargraphF8: Up/Down

F9: TerminalF10: Exit

Fieldmanager 485 Endress+Hauser Version 5.1

Diagnosecode: 0Diagnosecode: 0

00: LIC 001

0.0

20.0

75,5 %

40.0

60.0

80.0

100.0

LIC 004

0.0

20.0

58.0 %

40.0

60.0

80.0

100.0

LIC 002

0.0

20.0

31.0 %

40.0

60.0

80.0

100.0

01: LIC 003

Alt F1 - Select transmitter Alt F2 - Select transmitter

0.0

20.0

23.7 %

40.0

60.0

80.0

100.0

Display of measuredvalues of two Prolevelunits using theoperating programFieldmanager 485

Prolevel Nr.2 FMB 672 LIC 005 LIC 001 V-H Position 00

F1: Dev0...31F2: Dev32...63

F3: Dev AddrF4: COM-Port

F5: EnvelopeF6: Matrix

F7: BargraphF8: Up/Down

F9: TerminalF10: Exit

Measured value Empty »calibration« Full »calibration« Output current

Relay 1 Relay 1 Relay 1 Relay 1switch point fail-safe mode hysteresis at alarm

Linearisation Level input mode Tab. No. Input volume

Calibration Offset Sensitivitymode

Select VH pos. with cursor keys - or press ESC and enter VH pos. To configure press RETURN key

Section of operatingmatrix used forconfiguring the ProlevelFMB 662 (Fieldmanager 485)

Fieldmanager 485 Endress+Hauser Version 5.1

Nr.

00010203040506070809101112131415

Nr.

17181920212223242526272829303132

Device

--------------------------------------------------------------------------------

Device

FMB 672FMB 672FMB 672FMB 672FMB 672

-------------------------

FMB 672FMB 672FMB 672

---------------

Measuring points

LIC 001 LIC 002LIC 003 LIC 004LIC 005 LIC 006LIC 007LIC 008 LIC 009

LIC 101 LIC 102LIC 103LIC 104 LIC 105

Measuring points

F1: Dev0...31F2: Dev32...63

F3: Dev AddrF4: COM-Port

F5: EnvelopeF6: Matrix

F7: BargraphF8: Up/Down

F9: TerminalF10: Exit

Live list of connectedtransmittersShown are theindividual instrumentaddresses on theRackbus (Column 1),transmitter designations(Column 2) the customer’smeasuring tag names(Column 3)

10

Visualisation

CommugraphThe Commugraph visualisation programis the ideal support tool for theoperating program. It is easily installedand operated. The principle functionsare as follows:

• Analogue display of measured valuesas columns. 12 measuring points canbe displayed simultaneously, 60 in all

• Transmitter status display• Limit value display. When the limit

value is exceeded, the columnchanges from green to red

• Level display as numerical value withtechnical units

• List of connected transmitters• Printed log of measured values.

No. Meas.point

Contents Meas. val. Units Factor

0 LIC 100 Rain retention basin 1 1.58 m 1

0 LIC 101 Rain retention basin 2 0.00 m 1

1 LIC 102 Rake control 0,02 m 1

2 LIC 103 Inflow measurement 780 l/sec. 1

10 LIC 104 Presettling basin 1 3.78 m 1

10 LIC 105 Presettling basin 2 3.82 m 1

11 LIC 106 Filter basin 1 1,95 m 1

12 LIC 107 Filter basin 2 1,87 m 1

13 LIC 108 Digestion tank 2824 m3 1

13 LIC 109 Flocculant 1230 mm 1

14 LIC 110 Neutralisation NaOH 2100 mm 1

Printout of measuringpoints and theirmeasured values

2000

1800

1600

1400

1200

1000

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

100

80

60

40

20

0

200

200

160

160

120

120

80

80

40

40

0

0

1700 kg60 % 20 t 62 t 80 %

76 %

199.5 t

180 hl

Code 401

1: LIC 102 2: LIC 103 10: LIC 104 10: LIC 1050: LIC 101

100

80

60

40

20

038 hl

12: LIC 107 13: LIC 108100

80

60

40

20

020 %

13: LIC 109100

80

60

40

20

062 %

14: LIC 110100

80

60

40

20

050 t

14: LIC 111

0: LIC 100

11: LIC 106

F1 Store West F3 Store North F5 Store Southeast F7 Entry mode F9 HelpF2 Store East F4 Store South F6 Print F8 Instrument status F10 End

Store West Date 09.12.94 Time 08.15

Display of a measuredvalue group – functionkeys simplify operatiion

0: LIC 100

200

160

120

80

40

0142.5 t

Code 400

technical unit

limit value co-lumn relay 2

instrumentstatus

measu-red value

limit valuecolumn relay 1

transmitter no. measuring point tag no.

measured va-lue column

Display for individualmeasurement point

No. Meas.point.

Code Status text

01234567891011121314

LIC 100LIC 102LIC 103

LIC 104LIC 106LIC 107LIC 108LIC 110

LIC 101

LIC 105

LIC 109

04010

00000

Operating mode...None...Operating mode...@04, 03,…@04, 04,…@04, 05,…@04, 06,…@04, 07,…@04, 08,…@04, 09,…Operating mode...Operating mode...Operating mode...Operating mode...Operating mode...

Display of transmitterstatus

11

Technical Data Manufacturer Endress+Hauser GmbH+Co. D-79689 MaulburgDesignation Prolevel FMB 662

General specifications Function Two-channel trasnsmitter for level measurement with twohydrostatic probes, differential measurement, densitymeasurement

Input signal two PFM signalsInterface 0/4 to 20 mA,

Communication with VU 260 Z handheld terminal,Rackbus RS-485 (optional)

Reference conditions To DIN IEC 770 (TU = 25 °C) or as specifiedOther CE mark

Input characteristics Signal Pulse frequency modulated (PFM); current pulses, which aresuperimposed on the base current. Electronic insert:– for hydrostatic probe: EB 17 Z or EB 27 Z

Explosion protection (in preparation)

CENELEC [EEx ia] IIC,FM,CSA

Intrinsically safe electricalisolation

Between sensor circuit and other electronics as well as withthe other channel

Output characteristics Analogue outputOutput Both outputs 0... 20 mA, switchable to 4... 20 mA

Signal underflow: -2 mASignal overflow: 22 mA

On alarm Switchable +110%, -10% or hold last measured valueElectrical isolation Analogue output electrically isolated from the CPU and the

other electronicsCurrent limitation 23 mATemperature coefficient 0.3%/10 K of range end value Warm-up time 1 s

Adjustable damping 0 to 99 s (T90 – time)Maximum load 600 Ω Load effect negligible

RelayVersion 5 relays, each with a potential-free changeover contactRelay function 2 sets of 2 limit relays, each set monitoring a limit value

1 alarm relay (de-energises on fault condition) Hysteresis Switch points and switching hysteresis of limit relays freely

adjustable, fail-safe mode selectable minimum or maximumSwitching capacity AC:6 A, 250 V, 750 VA at cos ϕ=0.7

1500 VA at cos ϕ= 1DC: 6 A, 250 V, 200 W

Electrical isolation Relays electrically connected to each other, electricallyisolated from other electronics

DisplaysDisplay (LCD) 4-digit measured value display with optional lighting

and bargraph (analogue display of current with 10 segments)

LEDs One yellow LED for every limit relay to indicate its switchingstatus: LED lit indicates "relay energised".One red LED for the alarm relay:LED lights on alarm and flashes on warning (LED lit indicates alarm relay de-energised).One green LED indicates power on.

12

Output characteristics (continued) Communication interfacesKeypad 6 keys (optional)Rackbus RS-485 interface(optional)

No. of units: maximum 25. When using other Endress+Hauser instruments withRackbus RS-485 interfavce the following applies:– max. 25 units when mounted in safe areas– max. 10 units when one or more mounted in a hazardous areaBaud rate: 19 200 bit/s, fixedCable: screeened, twisted pairs (screen connected toDGND on Prolevel)Topology: serial bus, electrically isolated, tree structureoptionalLength: max. 1200 m, including taps or branches (tapsunder 3 m do not count)Transmitter address: via 6-pole DIL switches in connectioncompartmentTermination: via 4-pole DIL switches in connectioncompartmentElectrical isolation: bus inputs are electrically isolated fromthe other electronics

Commulog VU 260 Z handheldterminal (standard)

Communication sockets in connection compartment

Power Supply Power supply AC: 85...253 V, 50/60 Hz or 20... 50, 50/60 Hz orDC: 16...60 V, residual ripple within the permissible voltage range

Power consumption maximum 7 WSafe electrical isolation Between power supply and signal output, CPU, Rackbus RS-

485 interface, relay and other electronics

Environmental conditions Temperature ranges Nominal temperature : -0 to 60 °CLimiting temperature : -20 to 60 °CStorage temperature: -40 to 80 °C

Electromagnetic compatibility better than 1% of full scale value.Immunity to EN 50082-2 (E 1993, VDE 0839 Part 82-2)Emission to EN 500081-2, industrial range (VDE 0839 Part 81-1), industrial standard NAMUR, with10 V/m

Climatic class To DIN 40 040 Tab. 10 "R": unit in the open or in outsideareas. Annual average humidity 95%, dew permissible

Vibration resistance To DIN 40 040 Tab. 6 "W"

Protection IP 66 with closed housing and cable glands of sameprotection type (with open housing IP 40, with openconnection compartment IP 20)

Wetted parts Housing body PC (polycarbonate)/ABS (AcrylnitrileButadiene Styrol), RAL 5012 (blue)Transparent cover PC (polycarbonate)blue front panel with field for labellingSealing of body in PU soft foam, FCC-free, for sealing thecover

Mechanical specifications Electrical connection

Pre-stamped cable glands: rear wall or base for each 5 or 4cable entries Pg 16, additional 4 cable entries Pg 13.5 onbase.Terminal connections for cable diameter 2.5 mm2

Connection cable for probe orswitching input

Two-wire, unscreened, maximum 25 Ω per core

Housing For wall or post mountingDimensions (L x H x W) 292 mm x 253 mm x 176 mmPosition Vertical recommendedWeight 2.45 kg

13

Product Structure

Supplementary Documentation

DeltapilotSystem Information SI006F/00/eMulticapProduct Information PI008F/00/eLiquiphantSystem Information SI007F/00/eSoliphantSystem Information SI013F/00/eRackbusSystem Information SI014F/00/e

Commutec operating programTechnical Information TI 113F/00/eCommugraphTechnical Information TI 158F/00/eRackbus-RS-485 Interface andFXA 675 Monorack II RS-485Technical Information TI 221F/00/eModbus Gateway ZA 672 Technical Information TI 148F/00/eProfibus Gateway ZA 673Technical Information TI 162F/00/eFIP Gateway ZA 674Technical Information TI 167F/00/eRackbus RS-485Operating manual BA 134F/00/e

Certificate R Standard (non-certified)* CENELEC [EEx ia] IIC* FM Intrinsically Safe, Class I,

Division 1; Groups A, B, C, D* CSA Intrinsically Safe, Class I,

Division 1; Groups A, B, C, D,* GL and BV approved for shipbuilding

*in preparation

Housing / Cable entry 1 Plastic field housing (ABS) IP 66 /

prestamped cable entries for cable glands with Pg 13.5 or Pg 16

9 Other

Display / OperationA With display / with keypad in field housing B With illuminated display / with keypad in field housing C Without display / without keypad, operation via

Rackbus RS-485 (option) or VU 260 Z handheld terminal Y Other

Relays 2 Five relays each with potential-free changeover contact:

two sets of two relays for monitoring limit values,one alarm relay

9 OtherPower supply A AC 85...253 V, 50/60 Hz B AC 20...55V, 50/60 Hz C DC 16...60V Y Other

Communication 1 Connection for Commulog VU 260 Z

2 With Rackbus RS-485 interface / connection for Commulog VU 260 Z

9 Other

FMB 662 Product designation

Prolevel FMB 662

14

Accessories All-Weather Protective Hood for theField HousingMaterial: • aluminium (Order No. 919567-0000)

blue lacquered finish• stainless steel 1.4301 (Order No.

919567-0001). Weight: approx. 1 kg. Mounting screws supplied.

Post MountingMaterial: • galvanised steel

(Order No. for 2" pipe: 919566-0000;for 1" pipe: 919566-1000)

• stainless steel 1.4301 (Order No. for 2"pipe: 919566-0001; for 1" pipe:919566-1001).

Weight: approx. 1 kg. Mounting screws and nuts supplied.

Commulog VU 260 ZHandheld terminal for calibrating the Prolevel version without display or keypad (see TechnicalInformation TI 140/00/e).

Overvoltage ProtectionSeparate overvoltage protection unitHAW 261 and HAW 262 (see TechnicalInformation TI 108F/00/e).

RS-485 PC Interface Card• Connector: 25-pin Min-D plug, pin

assignment: see figure on Page 8,plug supplied with screw terminals

• Baud rate: 19 200 bit/s• Configuration: supplied configured for

COM 3, address 3E8H, with protectiveground at Pin 1 of connector

• Slot: 8 or 16 bit• RS-485 output electrically isolatedOrder No. 016399-0000

Converter: RS-232C/RS-485Interface• Connector for PC:

25-pin Min-D plug• for bus 9-pin Min-D jack, pin

assignment on bus side, see figure,Page 8, plug supplied with terminalscrews

• Baud rate: 19 200 bit/s• RS-485 output electrically isolated• Power supply 15 V DC; power unit

230 V or 115 V to order• RS-232C interface, can be configured

as DCE/DTE Order No. 016398-0000 for 230 V /016398-0050 for 115 V

343176

187,

5

Mounting anddimensions for theall-weather cover. Mounting to a 2" post

BR1J9

J1

J2

J5

BR2

JI

154

100

Dimensions of theRS-485 PC interfacecard and position of thejumpers (blue = default)

DCE DTE

RS-232C RS-485

15 V DC

94

54

Dimensions of theconverter

15

Multicap DeltapilotMulticap or Deltapilot

Liquiphant/Soliphant

TI 234F/00/en/02.95RÜ/CV4.2

08.93/MTM

Endress+HauserGmbH+Co.Instruments InternationalP.O. Box 2222D-79574 Weil am RheinGermany

Tel. (07621) 975-02Tx 773926Fax (07621) 975345

Hauser+EndressNothing beats know-how

Product Line Prolevel FMC 661 Prolevel FMC 662 Prolevel FMB 662

Applications Level and volumetricmeasurement in liquids and bulksolids

Level and volumetricmeasurement in liquids and bulksolids

Level and volumetricmeasurement in liquids

Versions Single-channel transmitter withlimit switch input

Two-channel transmitter Two-channel transmitter

Sensors One capacitive or hydrostaticprobe optionally Liquiphant orSoliphant limit switch

Two capacitive probes, e.g. of theMulticap series

Two Deltapilot hydrostatic probes

Extra functions • Vessel linearisation • Vessel linearisation • Vessel linearisation

• Independent limit detection • Differential measurementbetween two levels

• Differential measurementbetween two levels

• Automatic calibration correctionfor changing media

• Level measurement withreference probe

• Density compensated levelmeasurement

• Dry calibration without filling thevessel

Limit value/Fault indication

Two sets of two relays, each set monitoring a limit value; one alarm relay

Options Display with keypad

Illuminated display with keypad

Rackbus RS-485 interface

Certificates CENELEC EEx ia, FM, CSA (in preparation)

Protection IP 66

Documentation Technical InformationTI 232 F/00/e

Technical InformationTI 233 F/00/e

Technical InformationTI 234 F/00/e