OPERATING AND MAINTENANCE INSTRUCTIONS€¦ · Electro Hydraulic Positional Control System –...

23
PALADON SYSTEMS LIMITED OPERATING AND MAINTENANCE INSTRUCTIONS CUSTOMER KOSSO KENT INTROL LTD CUSTOMER ORDER NUMBER P234314 PROJECT ALVHEIM PALADON REF. CPC15815 DOCUMENT NO. 15815OM

Transcript of OPERATING AND MAINTENANCE INSTRUCTIONS€¦ · Electro Hydraulic Positional Control System –...

  • PALADON SYSTEMS LIMITED OPERATING AND MAINTENANCE

    INSTRUCTIONS

    CUSTOMER KOSSO KENT INTROL LTD CUSTOMER ORDER NUMBER P234314 PROJECT ALVHEIM PALADON REF. CPC15815 DOCUMENT NO. 15815OM

  • INDEX

    Drawing Index ................................................................................................................... 3

    Equipment Specification .................................................................................................... 4

    Actuator General Specification .......................................................................................... 4 Paladon Hydraulic Double Acting Linear Actuator....................................................................... 4 Valve/Actuator Mounting Assembly ............................................................................................ 4

    PS-125-DA Actuator Specification ..................................................................................... 5 Actuator Controls ............................................................................................................... 5

    Specification for Electro/Hydraulic Control System ..................................................................... 5 Specification for Electronic Positioner ........................................................................................ 5 Paint Specification ..................................................................................................................... 6 Hydraulic Circuit & Operation Description ................................................................................... 7

    Spares Kit Ordering & Additional Service Support ................................................................. 8

  • Drawing Index GA DRAWINGS

    TAG NO. CPC15815-02-01 Rev 0 16HCC0104 16HCV0404 HYDRAULIC CONTROL SCHEMATIC CPC15815-05-02 R0 WIRING DIAGRAM CPC15815-05-201 R1 CPC15815-05-202 R1

  • Equipment Specification Actuator General Specification Paladon Hydraulic Double Acting Linear Actuator The Paladon hydraulic double acting actuator incorporates the latest technology for the cylinder and yoke mechanisms. All steel construction means that these units are designed for the most arduous of operating conditions and are guaranteed to provide extended service life. Actuators for modulating service include heavy-duty bearings and seals. Main Actuator Features - ENP coated cylinders with external tie bars where applicable. - Circular apertures sealed by 'O' rings. - Heavy-duty piston rod operating in sleeve bearings ensure no degradation of sealing

    surfaces due to working loads. Actuators incorporate a central guide rod which supports the combined piston and guide pin assembly throughout the stroke cycle.

    - All critical nuts and bolts are positively locked. - Adjustable end stops are provided for external adjustment and locking. - Standard operating temperatures -20°C to +55°C. - A mechanical position indicator is provided on each actuator. Materials of Construction Housing : Carbon Steel Piston Rod : Alloy Steel, Chromium plated 'O' Rings : Buna-N Fasteners : Stainless Steel Valve/Actuator Mounting Assembly A heavy-duty valve/actuator mounting assembly is provided to give a true running accurate transmission of thrust and properly aligned with a secure mounting arrangement.

  • PS-125-DA Actuator Specification For ABB choke Valve - 100mm Travel Double Acting Hydraulic Linear Actuator Thrust To Close/Open : 19000 lbs Operating time (stepping): Adjustable (1min to 15min) Operating time (fast open): Approx. 10 sec Extras Included • Mounting Yoke and Drive Coupling • Adjustable end stop

    Actuator Controls The actuator is fitted with the following controls, all tested as necessary in accordance with PALADON procedures. Specification for Electro/Hydraulic Control System Actuator Type Linear, Double Acting Modes of Operation Stayput Construction Manifold Design 316 SS Solenoid Operated Valve 24vDC EExd ATEX Approved Speed Control Fully Adjustable Hydraulic Supply From customer’s ring main supply

    Normal Pressure Range 180 barg min and 210 barg max

    System Leakage Zero to maintain accurate positioning Environment Exposed Ambient Temperature -20ºC to +55ºC Operating Medium Mineral Oil System Cleanliness NAS 1638 Class 6 Extras Included: 316 SS Enclosure

    Pressure Filter with Pop-Up Indicator Hand pump for Manual Override Fast Open Solenoid Valve

    Specification for Feedback and Electrics Mode of Operation Pulsing Solenoids Feedback Housing Material 316 SS Feedback Certification Intrinsically Safe Retransmission Signal 4-20 mA Terminal Box for Solenoids EExe Terminal Box Material 316 SS Ambient Temperature -20ºC to +55ºC Environment Exposed Electrical Connections 1/2” NPT Electrical Cabling Armour braided fire resistant and halogen free Cable Glands EExd Brass Universal with PVC Shroud

  • Paint Specification Norsok M-501 System 1 Final Colour RAL7038 Agate Grey

  • PALADON SYSTEMS LIMITED OPERATING AND MAINTENANCE

    INSTRUCTIONS Hydraulic Circuit & Operation Description Electro Hydraulic Positional Control System – Stayput & Manual Override c/w Fast Open & Valve Close Lock Operation Description for Circuit Diagram CPC15815-05-02 Hydraulic fluid is supplied from a centralised source at a pressure of 180 barg into the actuator hydraulic system. Maximum operating pressure 210 barg. Cleanliness protection of the fluid is maintained at a level of NAS 1638 class 6 by means of the pressure filter c/w pop up indicator (Item 2). On loss of 24V Power Supply or Hydraulic Supply Pressure the system will fail Stayput. The Customer’s DCS will control two Electro-Hydraulic solenoid valves (Items 9 & 10) to position the hydraulic actuator (Item 1). Positional feedback will be via a feedback device (Item 13) mounted within the actuator. Under normal actuator stayput position the solenoid valves (Items 9 & 10) are de-energised. To open the actuator, energise the INTERLOCK (Item 8) and OPEN (Item 9) solenoid valves. To close the actuator, energise the CLOSE solenoid valve (Item 10). Tamperproof speed control is adjustable and obtained by valve (Item 4) for actuator Open and valve (Item 6) for actuator Close. The Rapid Open speed control is by valve (Item 5). Additional features included are as follows:- a. Fast Open of actuator is by energising the RAPID OPEN solenoid valve (Item 7) this will

    override all other functions.

    b. Actuator Lock in Position is by means of INTERLOCK solenoid valve (Item 8). This valve

    is normally energised but in close position from customer signal, will de-energise and lock actuator in close position until energised. The INTERLOCK solenoid valve stops the actuator being opened but allows CLOSE or RAPID OPEN function.

    Instructions for Manual Override Manual operation of the actuator is achieved by an integral hand pump (Item 12). For the operation of the hand pump hydraulic fluid is stored and used from an integral reservoir c/w flexible separator (Item 16). Close the hydraulic supply ball valve (Item 14). Energise the appropriate solenoid valve and operate handpump accordingly.

  • A ( 1:8 )

    Parts List

    MATERIALORDER REF.DESCRIPTIONVENDORQTYCONTROL TYPE / PORT SIZEITEM

    GenericPS-125-DA ATOS1DIRECT ACTING ACTUATOR 1/2"BSPP1

    316SS00005663 PALADON1CABINET ASSEMBLY2

    MILD STEEL110132-01125250 BARG MWPFAWCETT CHRISTIE1ACCUMULATOR 1.4L 1/2" BSPP3

    Stainless SteelNCB5-18GM40-NO P & F1PROXIMITY SWITCH 4

    Stainless Steel341001900SARUM HAND PUMPSARUM HYDRAULICS1SARUM HAND PUMP5

    316SSEX JB1919103x M20 L, 1x M20 R, 1xM25 4xM20 B.ORANGE1JUNCTION BOX6

    316SSB6FX50S OLIVER VALVES1BALL VALVE 1/2"NPT7

    A

    ALL DIMENSIONS IN MILLIMETRES UNLESS OTHERWISE STATED DO NOT SCALEIF IN DOUBT ASK

    DRAWING No

    www.paladonsystems.com

    TEL: +44 (0) 1604 880700

    PALADON SYSTEMS LIMITED

    FERRO FIELDS

    THIRD ANGLE

    MACHINING

    ORIENTATION

    GENERAL

    0.1mm

    0.5mm

    1/2 OTHERWISE

    UNLESS

    STATED

    BRIXWORTH

    NORTHAMPTONSHIRE

    NN6 9UA

    UNITED KINGDOM

    FAX: +44 (0) 1604 882424

    DRAWN

    ..................................

    ..............................

    .....................................

    APP'D

    CHK'D

    QTYREVSCALE DRAWING No

    A B C D E F G H

    THIS DRAWING MUST NOT BE COPIED

    LENT OR USED IN WHOLE OR PART

    WITHOUT THE WRITTEN CONSENT OF

    PALADON SYSTEMS LIMITED

    COPYRIGHT NOTES

    TOLERANCES

    TITLE

    CLIENT

    ORDER No

    PROJECT

    A3

    1

    2

    3

    4

    5

    6

    REV DATE SIGNDESCRIPTION OF REVISION

    CPC15815-02-01

    CPC15815-02-01

    ALVHEIM

    P234314

    KENT INTROL

    SRM

    OJ 03.06.14

    27/05/2014

    BS 03.06.14

    GA PS125 DA ACTUATOR

    WITH CONTROLS

    8" CLASS 1500 VALVE

    NOTES:

    1) COMPLETE ASSEMBLY TO BE PRESSURE AND FUNCTIONALLY

    TESTED TO PALADON PROCEDURES.

    2) ALL ASSEMBLY FASTENERS TO BE 316 STAINLESS STEEL.

    3) PAINT SPECIFICATION:

    NORSOK M-501 SYSTEM No 1 -15815PP

    FINAL COLOUR : RAL7038 (AGATE GREY)

    4) ALL FITTINGS TO BE 316 STAINLESS STEEL COMPRESSION TYPE:

    SWAGELOK - METRIC DOUBLE FERRULE.

    5) ALL TUBING TO BE 316 STAINLESS STEEL SEAMLESS TYPE:

    10mmOD x 1.5mm WALL THICKNESS

    6) UNIT WEIGHT 160 kgs APPROX.

    7) TAG NUMBER:

    VALVE/ACT

    16HCC0104

    16HCV0404

    8) OPERATING TIMES:

    VALVE STEPPING

    16HCC0104 60SECONDS TO 15MIN

    FAST OPEN - 10SECONDS

    16HCV0404 60SECONDS TO 15MIN

    FAST OPEN - 10SECONDS

    9) DRAWING TO BE READ IN CONJUNCTION WITH:

    CPC15815-05-02 SCHEMATIC

    CPC15815-05-201 WIRING DIAGRAM

    10) OPERATING PRESSURES

    180 BARG MIN.

    210 BARG MAX.

    11) HYDRAULIC FLUID

    MINERAL OIL

    12) ACTUATOR SPECIFICATION

    STROKE LENGTH = 100mm

    OPEN/CLOSE THRUST = 19,000Ibs

    0 27.05.14 SRMFOR INFORMATION

    SHEET

    OF1 1

    2 1:8 0

    90.50

    -

    0.00

    0.10+

    1/2"NPT

    CUSTOMER

    HYDRAULIC

    SUPPLY

    CONNECTION

    M20

    CUSTOMER

    ELECTRICAL

    ENTRIES

    SOLENOID

    IS VALVE CLOSE PROXMITY SWITCH

    21

    CUSTOMER

    ELECTRICAL

    4-20mA POSITION

    SIGNAL

    ENTRY

    1.25"-12-UN-CL2A

    33

    10

    0

    ST

    RO

    KE

    250 MAX

    630 MAX

    82

    0 M

    AX

    517

    HANDPUMP

    HANDLE

    290 MAX

    730 MAX

    2

    6

    4

    1

    5

    3

    7

    14

    0 C

    LO

    SE

    D

    PO

    SIT

    IO

    N

    40

    1/2"NPT

    CUSTOMER

    HYDRAULIC

    RETURN

    CONNECTION

    DRAWING LESS CABLING

  • M8

    4x M20 CABLE ENTRIES ON BASE

    2 x M20 ENTRY ON R/H SIDE

    2 x M20 ENTRY ON L/H SIDE

    190

    FOR IS CABLE ENTRIES

    FOR CLIENT NON IS CABLE ENTRIES

    196

    FOR CLIENT IS CABLE ENTRIES

    CONTAINS I.S.

    CIRCUITS

    All diimensions are nominal for information only

    Terminals Weidemuller Interface GmbH & Co.

    Type WDU 2.5

    Enclosure COOPER Crouse-Hinds (UK) Ltd.

    Type STB191910 (STB 3)

    IS/ NON IS SPACING 50mm

    8 X BEIGE NON IS TERMINALS

    5 X BLUE IS TERMINALS

    45

    40

    66

    40

    190

    215

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    12

    13

    4x M20 CABLE ENTRIES ON BASE

    FOR NON IS CABLE ENTRIES

    FITTED WITH NYLON PLUGS

    FITTED WITH NYLON PLUGS

    115

    SV1

    SV2

    SV3

    SV4

    IS1

    IS2

    F

    E

    D

    C

    B

    A

    1 2 3 4 5 6 7 8

    DRG No

    UNITED KINGDOM.

    NORTHANTS. NN6 9UA.

    TITLE

    REV

    FAX: +44 (0) 1604 882424

    TEL: +44 (0) 1604 880700

    APPLICATION:

    DATE

    OTHERWISE

    DESCRIPTION OF REVISION

    THIRD ANGLE

    GENERAL

    MACHINING

    ORIENTATION

    A3

    STATED

    UNLESS PALADON SYSTEMS LTD.

    FERRO FIELDS, BRIXWORTH,

    SUPPLIER REF: REV.

    SHEET

    SCALE

    QTY

    OF

    www.paladonsystems.com

    SRM04.09.141 IS/NON IS BARRIER REMOVED AS BUILT

    JP13/06/140 ISSUE FOR APPROVAL

    CO

    OJ

    1CPC15815-05-201

    LAYOUT DRAWING

    ACTUATOR JUNCTIONBOX

    POR42906

    NA

    2

    JP

    11

    EEXE JUNCTION BOX

    07042/A/001

  • F

    E

    D

    C

    B

    A

    1 2 3 4 5 6 7 8

    DRG No

    UNITED KINGDOM.

    NORTHANTS. NN6 9UA.

    TITLE

    REV

    FAX: +44 (0) 1604 882424

    TEL: +44 (0) 1604 880700

    APPLICATION:

    DATE

    OTHERWISE

    DESCRIPTION OF REVISION

    THIRD ANGLE

    GENERAL

    MACHINING

    ORIENTATION

    A3

    STATED

    UNLESS PALADON SYSTEMS LTD.

    FERRO FIELDS, BRIXWORTH,

    SUPPLIER REF: REV.

    SHEET

    SCALE

    QTY

    OF

    www.paladonsystems.com

    SRM04.09.141 RAPID OPEN WAS CLOSE

    JP13/06/140 ISSUE FOR APPROVAL

    CO

    OJ

    1CPC15815-05-202

    WIRING DRAWING

    ACTUATOR JUNCTIONBOX

    POR42906

    NA

    2

    JP

    11

    EEXE JUNCTION BOX

    07042/C/001

  • Component Manuals

  • SECTION CONTENTS PAGE NO.

    1.0 DESCRIPTION 12.0 SPECIFICATION 1-53.0 INSTALLATION 6-7

    Status Instruments Ltd, Green Lane Business Park, Tewkesbury, Glos. GL20 8DE

    Tel: +44 (0)1684 296818 Fax: +44 (0)1684 293746

    Email: [email protected] Web: www.status.co.uk

    52-214-2407-01 Issue: Web 210

    SEM210 SERIES

    INDEX

    Programmable In-head Universal Temperature Transmitter

  • The transmitter is a second generation 'Smart' in-head temperature transmitter that accepts any commonlyused temperature sensor, slidewire transducer or millivolt signal and converts the output to the industrystandard (4 to 20) mA transmission signal. The software package RCPW can be used to program the unit.

    Sensor Range (-200 to 850) ºC (18 to 390) ΩMinimum Span*¹ 25 ºCLinearisation BS EN60751 (IEC 751)

    BS 1904 (DIN 43760)JISC 1604CUSTOM [X]*³

    Basic Measurement Accuracy*² ± 0.01 % FRI ± 0.05 % Rdg (FRI = Full Range Input)Thermal Drift Zero 0.008 ºC/ºC

    Span 0.01 %/ºCExcitation Current (300 to 550) µAMaximum Lead Resistance 50 Ω/legLead Resistance Effect 0.002 ºC/Ω

    SENSOR RANGES

    Thermocouple Type Measuring Range*4 ºC Minimum Span*¹ ºCTC Type K -200 to 1370 50TC Type J -200 to 1200 50TC Type T -210 to 400 25TC Type R -10 to 1760 10TC Type S -10 to 1760 100TC Type E -200 to 1000 50TC Type L -100 to 600 25TC Type N -180 to 1300 50TC Type [X]*³ User defined

    Linearisation BS 4937 / IEC 584, EN60584Basic Measurement Accuracy*² ± 0.04 % FRI ± 0.04 % RDG or 0.5 ºC (whichever is greater)Thermal Drift Zero 0.1 µV/ºC

    Span 0.01 %/ºCCold Junction Error ± 0.5 ºCCold Junction Tracking 0.05 ºC/ºCCold Junction Range (-40 to 85) ºC

    Page 1

    Input Voltage sourceRange (-10 to 75) mVCharacterisation Linear

    Custom [X]*³, 4th order polynomialMinimum Span*¹ 5 mVBasic Measurement Accuracy*² ± 10 µV ± 0.07 % RdgInput Impedance 10 MΩThermal Drift Zero 0.1 µV/ºC

    Span 0.01 %/ºC

    Input 3 wire potentiometerResistance Range (10 to 390) Ω (end to end).

    Larger values can be accommodated by external resistor.Characterisation Linear

    Custom [X]*³, 4th order polynomialMinimum Span*¹ 5 %Basic Measurement Accuracy*² 0.1 % FRITemperature Drift 0.01 %/ºC

    Output Range (4 to 20) mA (> 3.8 to < 20.2) mAMaximum Output 23 mAAccuracy ± 5 µAVoltage Effect 0.2 µA/VThermal Drift 1 µA/ºCSupply Voltage (10 to 35) VMaximum Output Load [(Vsupply -10)/20] kΩ (e.g 700 Ω @ 24 V)

    *NOTES:1. Any span may be selected, full accuracy is only guaranteed for spans greater than the minimum

    recommended.2. Basic measurement accuracy includes the effects of calibration, linearisation and repeatability.3. Customer linearisation requirements are available pre-programmed at the factory, contact your

    supplier for details.4. Consult thermocouple reference standards for thermocouple material limitation.5. If the unit is to be configured for either millivolts or slidewire input, the following procedure should

    be followed. Configure unit for RTD with BS1904 linearisation (Not EN60751) and up load to unit. The unit can now be configured for millivolts or slidewire input.

    Page 2

    1.0 DESCRIPTION

    2.1 RTD INPUT (Pt100)

    2.0 SPECIFICATION @ 20 ºC

    2.3 MILLIVOLT INPUT*5

    2.5 OUTPUT

    2.2 THERMOCOUPLE INPUT

    2.4 SLIDEWIRE INPUT*5

  • Page 3

    Input/Output Isolation 500 VAC rms (galvanically isolated)Update Time 250 ms maximumTime Constant (Filter Off) < 1 s (Time to reach 63 % final value)Filter Factor Programmable Off, 2 s, 10 s or adaptiveWarm up Time 120 s to full accuracy

    ENVIRONMENTALAmbient Operating Range (-40 to 85) ºCAmbient Storage Temperature (-50 to 100) ºCAmbient Humidity Range (10 to 90) % RH non condensing

    APPROVALSEMC BS EN61326

    MECHANICALEnclosure DIN standard terminal block sizeMaterial ABSWeight 35 gDimensions (43 x 21) mm

    COMMUNICATIONSPC Interface RS232 via configuratorMinimum Output Load 250 Ω for 'In loop' programmingMaximum Cable Length 1000 mConfigurable Parameters Sensor type: Burnout: ºC/ºF: Output: Hi/Lo: Filter: Tag: UseroffsetComms Protocol ANSI X3.28 1976Data Rate 1200 baud

    The SEM210X, has been issued with a EC-type examination certificate, confirming compliance with theEuropean ATEX directive 94/9/EC for:

    INTRINSIC SAFETY II 1 G EEx ia IIC T4…T6.

    The equipment bears the Community Mark and subject to local codes of practice, may be installed in anyof the European Economic Area (EEA) member countries. The SEM210X housing is coloured light blue toidentify the equipment as suitable for Hazardous area use. The equipment must be installed and maintained in accordance with local requirements for electrical equipment for use in potentially explosive atmospheres, e.g EN60079-14 & EN60079-17. This instruction sheet describes installation whichconforms with BS EN60079-14 & BS EN60079-17 Electrical Installation in Hazardous Areas. When designingsystems outside the UK, the local Code of Practice should be consulted.

    Page 4

    Manufacturer Status Instruments LtdType Number SEM210X

    CE Marking

    Explosive Protection Marking

    (TYPE ia) INTRINSIC SAFETYII 1 Equipment group and categoryG Type of explosive atmosphere (Gas)EEx ia IIC T4..T6 Intrinsic safety informationTRL03ATEX21032 X Certificate reference

    As indicated by the Certificate Reference "X" suffix, special conditions apply for safe use for both intrinsicsafety and energy limitation applications. They are as follows:

    ZONES, GAS GROUPS, AND T RATING.When connected to a approved system the SEM210X may be installed in:

    Zone 0 Explosive gas air mixture continuously presentZone 1 Explosive gas air mixture likely to occur in normal useZone 2 Explosive gas air mixture not likely to occur and if it does, it will only occur for a short time.

    Be used in gas groups:

    Group A PropaneGroup B EthyleneGroup C Hydrogen

    2.6 GENERAL

    2.7 SEM210X VERSION - FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES

    2.7.1 ATEX CERTIFICATE

    2.7.2 ATEX MARKING

    COMMON INFORMATION

    0891

    2.7.3 SPECIAL CONDITIONS FOR SAFE USE

  • Page 5 Page 6

    The transmitter is mounted using two 5.5 mm diameter holes, on standard 33 mm fixing centres and willfit a DIN standard termination head. The transmitter should be installed with adequate protection frommoisture and corrosive atmospheres.

    Care must be taken when locating the transmitter to ensure the ambient temperature remains within thespecified operating range. Figure 1 shows the mechanical layout and a typical application of the transmittermounted inside a termination head enclosure, with sensor wires entering through the centre of thetransmitter body.

    Allowable temperature classification/ambient temperature:

    INTRINSIC SAFETY (Type ia)

    CLASS AMBIENT TEMPERATURE RANGE °CT1 450°C -25 to 85T2 300°C -25 to 85T3 200°C -25 to 85T4 135°C -25 to 85T5 100°C -25 to 50T6 85°C -25 to 40

    This equipment must be housed in an enclosure which provides a degree of protection of at least IP54.The enclosure must be suitable for the atmosphere and environment in which it is installed. (e.g. If of aplastic material, must be resistant to chemical corrosion, UV light, temperature, humidity, etc).

    This intrinsically safe equipment contains no user serviceable, adjustable or replaceable parts. No attemptshould be made to repair a faulty SEM210X transmitter, all units must be returned to the manufacture forrepair or replacement. Attempt service or replacement of parts may invalidate the explosive protectionfeatures of the equipment.

    They equipment must be electrically connected as shown below:

    SEM210X WORKING PARAMETERSUi 30 V I i 100 mAPi 750 mWCi 10 nF Li 0 µH

    2.7.4 ENVIRONMENTAL PROTECTION

    2.7.5 MAINTENANCE

    SENSOR

    DC SUPPLY

    +

    -

    SEM210X

    3 1

    4

    5

    2

    BARRIER

    Vo 30 Vlo 100 mAPo 750 mW

    EARTH

    SAFE AREAHAZARDOUS AREA

    2.8 CONNECTION DIAGRAM

    3.0 INSTALLATION

    3.1 MECHANICAL

    24.00 mm

    Ø44.00 mm

    Ø33.00 mm Centres

    Centre hole Ø6.3 mm

    Figure 1

    CABLEENTRY

    (4 to 20) mALOOP

    ENCLOSURE

    Figure 2

  • Page 7 Page 8

    Connections to the transmitter are made to the screw terminals provided on the top face. No specialwires are required for the output connections, but screened twisted pair cable are the most suitable forlong runs. It is recommended that screened cable is used for the three input signal wires for cable runsgreater than one metre. All three input wires must have the same core diameter to maintain equal leadresistance in each wire. A Ø4.5mm hole is provided through the centre of the transmitter to allow sensorwires to be threaded through the transmitter body direct to the input screw terminals. The screw terminals have been designed to allow all connection wires to enter from an inner or an outer direction.

    Figure 3 shows the method of connection to provide a (4 to 20) mA current loop output. The Pt100 sensorshown would normally take the form of a probe assembly with a three wire connection. The output loophas a voltage power supply used to provide loop excitation. The load symbol represents other equipmentin the loop, normally indicators, controllers or loggers. Care must be taken when designing the (4 to 20)mA circuit to ensure that the total voltage requirements of all the equipment in the loop added together,does not exceed the power supply voltage. If a number of instruments are connected in the loop, ensurethat only one instrument is tied to ground. Grounding the loop at two points will cause a short circuit ofpart of the loop leading to measurement errors.

    To guarantee CE compliance, sensor leads must be less than 3 m long and the transmitter housing shouldprevent access to the transmitter during normal operation.

    * Fit Rx for all potentiometers with end to end resistance > 390 Ω. Such that total end to endresistance is > 200 Ω < 390 Ω.

    3.2 ELECTRICAL

    MILLIVOLT

    POWERSUPPLY

    LOAD

    Pt100

    TCmV

    (10 to 35) VDC

    3 4

    3 4 5

    3 4

    2 1

    3 4 5SLIDEWIRE

    Rx

    (4 to 20) mAT/C

    Pt100

    +

    +-

    - -+

    +-- +Figure 3

    Smart In Head Temperature Transmitters DIN Rail Mounted Temperature Transmitters Panel & Field Temperature Indicators Temperature Probes Trip Amplifiers Signal Conditioners And many other products

    For further information on all products:

    Status Instruments Ltd, Green Lane Business Park, Tewkesbury, Glos. GL20 8DE

    Tel: +44 (0)1684 296818 Fax: +44 (0)1684 293746

    Email: [email protected] Web: www.status.co.uk

    ALSO AVAILABLE:

  • Spares Kit Ordering & Additional Service Support When requesting service support or ordering spares kits, please provide the following contract details: • Actuator Serial Number (6 or 7 digit number with a RFPL prefix) • Paladon Contract Number (5 digit number with an ACCP, ACE, ACP, ACSP, CCP, CE,

    CGH, CP, CPC or CSP prefix) • General Arrangement or Control Schematic Drawing Number • Full Actuator Model Number(s) and Descriptions • Tag Number(s) Please contact your nearest Paladon representative as detailed below: • Paladon Systems Ltd

    Ferro Fields, Brixworth, Northampton, NN6 9UA, England Tel: +44 (0)1604 880700 Fax: +44 (0)1604 882424 [email protected]

    • Paladon Italia Via Barbieri, 24, 27040 Pinarolo Po, PV, Italy Tel: +39 0383 878524 Fax: +39 0383 878042 [email protected]

    • Paladon SDT 121352 Davydkovskaya Str. 12/3. Moscow, The Russian Federation Tel/Fax: +7 495 735 28 07 (08) (09) [email protected]

    • Paladon Systems Ltd Asia Pacific Region Lot 3-4, Jalan Tanjung Keramat 26/35, Seksyen 26, 40400 Shah Alam, Selangor, Malaysia Tel: +603 5102 5063 Fax: +603 5102 5100 Mobile: +6012 311 3247 [email protected]

    • www.paladonsystems.com