Model 231RS Operating Instructions
Contents
1. to 5 VDC 0 to 10 VDC and 1 to 5 VDC output true two wire 4 to 20 mA output and auto zero capability Each unit is factory calibrated to the highest pressure range The range label on the side of the unit indicates the factory calibrated range Reminder Your application s highest line pressure should be less than or equal to the highest pressure range of the 231RS range code you selected when you purchased the 231RS See Range Codes in table below Range codes also listed on inside of housing cover Model 231RS pressure transducers sense differential pressure and convert this difference in pressure to a proportional high level analog output for unidirectional and bidirectional pressure ranges Your Model 231RS Multi Sense pressure transducer has been ordered in one of the following versions Version Unidirectional Bidirectional RS1 5 10 25 50 psid 5 10 20 50 psid RS2 7 5 15 37 5 75 psid 7 5 15 37 5 75 psid RS3 10 20 50 100 psid 10 20 50 100 psid RS4 15 30 75 150 psid 15 30 75 150 psid RS5 25 50 125 250 psid 25 50 125 250 psid 2 0 MECHANICAL INSTALLATION 2 1 Media Compatibility Model 231RS transducers are designed to be used with any gas or liquid compatible with 17 4 PH stainless steel Nev er totally submerge the unit in any liquid 2 2 Environment The operating temperature limits of the Model 231RS are as follows Compensated Temperature Range F C 32 to 130 0 to 54 Ope2. version CAUTION Reverse excitation will permanently 158 nai i i 4257 41 27 154 NPT damage unit Please follow wiring instructions carefully Figure 6 Dimensional Drawing 11 3 3 Remote Sensors Installation Cable Version P N 231GRSX4MXXXX For cable version remote sensors use the following instructions 1 Install the remote sensors into the system plumbing use 3 4 hex to tighten Important Each remote sensor is labeled HIGH PRESSURE SENSOR or LOW PRESSURE SENSOR respectively Match up the high pressure sensor to the high HI pressure electrical terminals and the low LO pressure sensor to the low pressure electrical terminals Otherwise the performance may not meet the product linearity specifications 2 Attach the cable provided to the 3 Pin Packard connector on the remote sensor 3 Feed the cable through the PG fitting on the bottom of the unit and tighten the fitting 4 Remove the terminal blocks from the circuit board and use the following chart aia a i i Pati L Hig IN i a y MM at Chart 2 Electrical wiring color chart 1 46 for High amp Low Pressure sensors Cable 37 1 version Important Prior to putting the unit into service complete configuration setup in Section 4 After configuration is complete press the Zero button 12 3 3 Remote Sensors Installation Armored Cable Version P N 231GRSXAJXXXX For Armored Cable version rem
3. Model 231RS Multi Sense Wet to Wet Pressure Transducer Remote Sensors 231RS Armored Cable Version 231RS Cable Version Conduit i Version CE 978 263 1400 800 257 3872 ROHS www setra com sales setra com Contents 1 0 GENERAL INFORMATION 2 0 MECHANICAL INSTALLATION 2 1 Media Compatibility 2 2 Environment 2 3 Pressure Fittings 2 4 Mounting 2 5 Installation Procedures 3 0 ELECTRICAL INSTALLATION 3 1 Electrical Terminaltion Wiring 2 Wire 4 to 20 mA and Remote Zero 3 2 Electrical Terminations Wiring 3 Wire 0 to 5 0 to 10 1 5 VDC and Remote Zero 3 3 Remote Sensors Installation 4 0 CONFIGURATIONS 5 0 RETURNING PRODUCTS FOR REPAIR 6 0 WARRANTY AND LIMITATION OF LIABILITY Model 231 Remote Sensors RS Installation Guide Multi Sense Model 231RS Series Wet to Wet Differential Pressure Transducers 231RS w Conduit Conduit Version Cable Version Armored Cable Version 231RS w Cable 231GRSX3MX 23 1GRSX4MXXxX 23 1GRSXAJXXX 231RS w Armored Cable shipping witaitne Pressure Trans 2 Pressure Transducers 2 Pressure Transducers 2 following ducers User Manual Cable Assemblies Cable Assemblies ernan i eran 1 0 GENERAL INFORMATION Every Model 231RS has been calibrated and tested before shipment to guarantee performance of all pressure ranges The Model 231RS has field selectable unidirectional and bidirectional pressure ranges configurable 0
4. akes the HI Port LO and the LO port HI High Pressure Electrical Terminals HI High pressure sensor termination Low Pressure Electrical Terminals LO Low pressure sensor termination 5 0 RETURNING PRODUCTS FOR REPAIR Please contact a Setra application engineer 800 257 3872 978 263 1400 before returning unit for repair to review information relative to your application Many times only minor field adjustments may be necessary When return ing a product to Setra the material should be carefully packaged and shipped to Setra Systems Inc 159 Swanson Road Boxborough MA 01719 1304 Attn Repair Department To assure prompt handling returned unit s must be accompanied by Setra s Return Order Form completely filled out found on Setra s web site at http www setra com tra repairs cal_rep htm Notes Please remove any pressure fittings and plumbing that you have installed and enclose any required mating electrical connectors and wiring diagrams Allow approximately 3 weeks after receipt at Setra for the repair and return of the unit Non warranty repairs will not be made without customer approval and a purchase order to cover repair charges Calibration Services Setra maintains a complete calibration facility that is traceable to the National Institute of Standards amp Technology NIST If you would like to recalibrate or recertify your Setra pressure transducers or transmitters please call our Repa
5. and REMOTE ZERO terminals In order to initi ate ZERO function the relay contact should be closed BAR PSI A REV NORM SLOW FAST BI DIR UNI DIR SWAP NORM sebra e ei ele CE Controller Voltage ey 102 Figure 5 3 3 Remote Sensors Installation Conduit Version P N 231GRSX3MX For conduit version remote sensors use the following instructions 1 Install the remote sensors into the system plumbing use 3 4 hex to tighten Important Each remote sensor is labeled HIGH PRESSURE SENSOR or LOW PRESSURE SENSOR respectively Match up the high pressure sensor to the high HI pressure electrical terminals and the low LO pressure sensor to the low pressure electrical terminals Otherwise the performance may not meet the product linearity specifications 2 Install a 1 2 conduit fitting into the remote sensor top cover and fasten the retaining nut 3 Feed wires from a flexible conduit through the remote sensor top cover fasten the wires to terminals 4 Screw on the top cover 5 Fit conduit into conduit fitting and tighten conduit watertight strain relief To connect the wires from the remote sensor to the unit remove the terminal blocks from the circuit board and use the following chart Installation of the Model 231RS is now complete Lz inch er Om uit i E a Chart 1 Electrical wiring chart for High amp A 34 HEX Low Pressure Sensors Conduit
6. cement or if the goods cannot be repaired or replaced to a refund of the purchase price SETRA s liability for all other breaches is limited to a refund of the purchase price In no instance shall SETRA be liable for incidental or consequential damages arising from a breach of warranty or from the use or installation of its products No representative or person is authorized to give any warranty other than as set out above or to assume for SETRA any other liability in connection with the sale of its products For all CE technical questions contact Setra Systems USA EU customers may contact our EU representative Hengstler GmbH Uhlandstr 49 78554 Aldingen Germany Tel 49 7424 890 Fax 49 7424 89500 15 SS231RS Rev D 07 16 2014 For all CE technical questions contact Setra Systems USA EU customers may contact our EU representative Hengstler GmbH Uhlandstr 49 Germany Tel 49 7424 890 Fax 40 7424 89500 e 159 Swanson Road Boxborough MA 01719 llr lin est ie 978 263 1400 800 257 3872 www setra com sales setra com i lil TILA Ti m 16
7. d hold the ZERO push button for 2 seconds to automatically reset zero or provide contact closure on Remote Zero see figure 4 and figure 5 Sensors must be vented to atmosphere Electrical Output The unit is set at the factory to 4 20 mA To select another output move the slide switch to the right Push the Zero button after changing the electrical output mode Sensors must be vented to atmosphere Electrical Connections Electrical termination for power supply 3 wire voltage output and 2 wire true 4 20 mA cur rent output and remote zero wiring BAR PSI Jumper selectable engineering units in Bar ranges or PSI A REV NORM A REV Analog Reverse When in reverse mode the output increases when the differential pressure decreases and decreases as pressure increases NORM When in Normal mode output increases as pressure increases and decreases as pressure decreases SLOW FAST When Slow mode is selected 5 second averaging is provided for surge damping BI DIR UNI DIR Select UNI Directional or Bl Directional mode Unidirectional mode measures from 0 to full scale differential pressure Bidirectional mode measures pressure from minus 1 2 of full scale to plus 1 2 of full scale differential pressure Output will read 1 2 full scale when differential pressure is zero SWAP NORM Jumper selectable Port Swap feature eliminates costly re plumbing when incorrectly installed or re placed Go from NORMAL to SWAP and the jumper m
8. e and delivers rated current into any external load of 0 250 ohms When configured as a 4 20 mA current output device the current flow is in one direction only PLEASE OBSERVE POLARITY WARNING Damage may result on the unit if AC power is applied when the output switch is configured in position A 4 20 We suggest that an electrical cable shield be connected to the systems loop circuit ground to improve electrical noise isolation Min Supply Voltage 15 02 x Resistance of receiver plus line Max Supply Voltage 30 004 x Resistance of receiver plus line The optional remote zero is a normally open relay wired between COM and REMOTE ZERO terminals In order to initi ate ZERO function the relay contact should be closed and sensor must be vented to atmosphere ABCD ZERO setra Figure 4 3 2 Electrical Termination Wiring 3 Wire 0 to 5 0 to 10 1 5 VDC and Remote Zero Model 231RS when configured for voltage output is a 3 wire circuit device with three terminals available for wiring The Excitation and Output are commoned on the circuit Model 231RS can operate from 15 30 VDC 18 30 VAC nominal output power supply Note The Zero terminals connected to digital output provide a contact closure relay for automatic reset to zero pres sure by the monitoring system CAUTION ZERO input is for dry contact do no apply voltage to ZERO Terminals The optional remote zero is a normally open relay wired between COM
9. ir Department at 800 257 3872 978 263 1400 for scheduling 6 0 WARRANTY AND LIMITATION OF LIABILITY SETRA warrants its products to be free from defects in materials and workmanship subject to the following terms and con ditions Without charge SETRA will repair or replace products found to be defective in materials or workmanship within the warranty period provided that a the product has not been subjected to abuse neglect accident incorrect wiring not our own improper installation or servicing or use in violation of instructions furnished by SETRA b the product has not been repaired or altered by anyone except SETRA or its authorized service agencies c the serial number or date code has not been removed defaced or otherwise changed and d examination discloses in the judgment of SETRA the defect in materials or workmanship developed under normal installation use and service e SETRA is notified in advance of and the product is returned to SETRA transportation prepaid Unless otherwise specified in a manual or warranty card or agreed to in writing and signed by a SETRA officer SETRA pressure and acceleration products shall be warranted for one year from date of sale The foregoing warranty is in lieu of all warranties express implied or statutory including but not limited to any implied war ranty of merchantability for a particular purpose SETRA s liability for breach of warranty is limited to repair or repla
10. ote sensors use the following instructions 1 Install the remote sensors into the system plumbing use 3 4 hex to tighten Important Each remote sensor is labeled HIGH PRESSURE SENSOR or LOW PRESSURE SENSOR respectively Match up the high pressure sensor to the high HI pressure electrical terminals and the low LO pressure sensor to the low pressure electrical terminals Otherwise the performance may not meet the product linearity specifications 2 Attach the cable provided to the 3 Pin Packard connector on the remote sensor 3 Feed the cable through the PG fitting on the bottom of the unit and tighten the fitting 4 Remove the terminal blocks from the circuit board and use the following chart Terminal Block CN8 amp CN11 Top View Hirschmann Connector Type G4A1M 931807 106 Chart 3 Electrical wiring color chart for 7 4 High amp Low Pressure sensors Armored Cable version z 1 62 41 2 2 24 56 9 3 4 HEX 1 8 NPT Important Prior to putting the unit into service complete configuration setup in Section 4 After configuration is complete press the Zero button 4 0 CONFIGURATION Range Selection Switch The unit is set to the highest range when calibrated at the factory To select the other ranges slide the switch to the right Important Push zero button after installing the Model 231RS and after changing range Auto Zero Button Press an
11. rating Temperature Range F C 4 to 185 20 to 85 Storage Temperature Range F C 4 to 185 20 to 85 2 3 Pressure Fittings Typically standard pipe fittings and installation procedures should be used Model 231RS have 1 4 18 NPT male fittings The high pressure port and low pressure connections are located on the bottom of the unit labeled HI and LO respectively Important Each remote sensor is labeled HIGH PRESSURE SENSOR or LOW PRESSURE SENSOR Match up the high pressure sensor to the high pressure electrical terminals and the low pressure sensor to the low pressure electrical terminals Otherwise the performance may not meet the product linearity specifications Moisture Precautions The Model 231RS is provided with a 0 875 DIA conduit opening for electrical termination intended for a 1 2 I D conduit connection This opening must be sealed according to standard industry practices in order to prevent mois ture ingress into the Model 231RS 2 4 Mounting The Model 231RS can be easily mounted using the two mounting screws located on the side of the unit 2 5 Installation Procedures For differential pressure measurements at high line pressure it is recommended that the pressure sensor be installed with a valve in each line plus a shunt valve across the high and low reference pressure ports as shown Important Do not exceed maximum range pressure with the total of diffe
12. rential pressure and line pressure Model 231RS High Pressure Low Pressure fs Remote Sensor Remote Sensor Valve A High Side Valve Valve B Low Side Valve Pipe Pipe Valves not included Figure 1 Model 231RS Conduit Version P N 231GRSX3MXXX Outline Drawing Front View P i 2x 1 2 Conduit 0 864 Opening 21 95 Side View 1 56 39 6 Bottom View Figure 2 Model 231RS Cable version P N 231GRSX4MXXX Model 231RS Armored Cable Version P N 231GRSXAJXXX Outline Drawing Front View Side View 1 2 Conduit Opening Bottom View Figure 3 3 0 ELECTRICAL INSTALLATION To access the electrical connections turn the screws on the top of the case counter clockwise until the hinged cover can be flipped up The screws are captured and secured in the cover Wiring is through the 1 2 conduit openings and PG fittings in the case of remote sensors with cable option Both current and voltage outputs are reverse wiring protected Note The Zero terminals connected to digital output provide a contact closure relay for automatic reset to zero pres sure by the monitoring system CAUTION ZERO input is for dry contact do no apply voltage to ZERO Terminals 3 1 Electrical Termination Wiring 2 Wire 4 to 20 mA Current Output and Remote Zero Model 231RS when configured as a current output transducer is a true 2 wire 4 20 mA current output devic
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