Model 231RS Multi-Sense® Wet-to-Wet Pressure Transducer Remote Sensors 231RS Armored Cable Version 231RS Cable Version 231RS Conduit Version CE 978-263-1400; 800-257-3872 www.setra.com; sales@setra.
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.
Model 231 Remote Sensors (RS) Installation Guide Multi-Sense® Model 231RS Series Wet-to-Wet Differential Pressure Transducers 231RS w/ Conduit 231RS w/ Cable 231RS w/ Armored Cable is shipping with the following: Conduit Version (231GRSX3MX) Cable Version (231GRSX4MXXX) Armored Cable Version (231GRSXAJXXX) Item Qty. Item Qty. Item Qty.
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. Never 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) Operating Temperature Range °F (°C) -4 to +185 (-20 to +85) Storage Temperature Range °F (°C) -4 to +185 (-20 to +85) 2.
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 differential pressure and line pressure.
Model 231RS (Conduit Version, P/N: 231GRSX3MXXX) Outline Drawing 6.0 152.4 5.56 141.2 R 0.1 2.5 0.35 8 2.0 50.8 1.98 50.3 4.0 10.2 2x 0.864 21.95 1/2” Conduit Opening 1.56 39.6 0.95 24.1 1.220 30.99 5.16 131.1 Figure 2 7 1.240 31.
Model 231RS (Cable version, P/N: 231GRSX4MXXX) Model 231RS (Armored Cable Version, P/N: 231GRSXAJXXX) Outline Drawing 6.0 152.4 5.56 141.2 R 0.1 2.5 0.35 8.8 2.0 50.8 1.22 31 1.66 42.2 1.98 50.3 4.0 10.2 4.87 123.6 5.08 129 1.56 39.6 0.95 24.1 5.16 131.
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.
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 pressure by the monitoring system.
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.
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.
3.3 Remote Sensors Installation Armored Cable Version (P/N: 231GRSXAJXXXX) For Armored 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.
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 and 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.
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 returning a product to Setra, the material should be carefully packaged, and shipped to : Setra Systems, Inc.
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. 159, Swanson Road, Boxborough, MA 01719 978-263-1400; 800-257-3872/www.setra.com; sales@setra.
