Product specifications

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DIFFERENTIAL PRESSURE
28
Multi-Sense® Model 231RS


■ 
■ 
■ 

■ -
directional Switch Selectable Pressure Ranges
■ -

■ Jumper Selectable Port Swap
■ Optional LCD
■ All Cast Aluminum, NEMA4 Rated Housing
■ CE and RoHS Compliant
APPLICATIONS
■ Energy Management Systems
■ Process Control Systems
■ -
uids
■ -
sels
■ 
DESCRIPTION
The Model 231RS with remote sensors reduces labor, materials, and
time. The sensors are installed directly into the pipe and electrical
connection is made between the remote sensors and the Model
231RS via cables or conduit, reducing labor cost by one-third and the
cost of copper to connect the pressure transducer to the pipe. Startup
time is reduced since purging air out of the lines is not necessary.

transducer’s all inclusive design provides users with eld accessible
ranging, choice of output and eld zeroing.

The calibration of this product is NIST traceable.
SPECIFICATIONS
Electrical Data (Voltage) Performance Data Environmental Data
Circuit 3-Wire
Accuracy RSS
1
(at constant temp.) Operating
3
Temperature °F (°C) -4 to +185 (-20 to -85)
Excitation
15 to 30 VDC/18 to 30 VAC (Reverse
Excitation Protected)
Pressure Ranges A, B, C ±1.0% FS Storage Temperature °F (°C) -4 to +185 (-20 to +85)
Output
4
0 to 5 VDC, 0 to 10 VDC, 1 to 5 VDC
Pressure Ranges D ±2.0% FS Vibration 10g from 50Hz to 2000 Hz
Output Impedance 30 Ohms
Pressure Ranges (Selection Example, Pg 4.)
Shock 200g
Circuit Consumption
8 mA (typ.) at 5 VDC, 8 mA (typ) at
10 VDC, 40 mA (typ.) at 18-30 VAC
Range Code A B C D Max. Line Pressure
Physical Description
RS1 50 25 10 5 50 Case Die Cast Aluminum, Powder Coated
Electrical Data (Current)
RS2 75 37.5 15 7.5 75 Pressure Fittings 1/4-18 NPT Male
Curcuit 2-wire (Reverse Excitation Protected)
RS3 100 50 20 10 100 Electrical Connection 1/2 in. Conduit
Output
5
4 to 20 mA
RS4 150 75 30 15 150 Size 4.0 x 6 x 2 in. (102 x 152 x 51 mm)
External Load 0 to 250 Ohms
RS5 250 125 50 25 250 Weight 1.3 lb
Min. Supply Voltage (VDC)
15 + 0.02 x Resistance of receiver
plus line)
Pressure Media Thermal Eects
2
Max. Supply Voltage (VDC)
30 + 0.004 x Resistance of receiver
plus line)
Liquids or Gases Compatible with 17-4 PH Stainless Steel
Note: Hydrogen not recommended for use with 17-4 PH stainless steel
Compensated Range °F (°C) +32 to +130 (0 to +54)
1
RSS of Non-Linearity, Hysteresis, and Non-Repeatability.
2
Units calibrated at nominal 70˚F. Maximum thermal error computed from this datum.
3
Operating temperature limits of the electronics only. Pressure media temperatures may be
considerably higher or lower.
4
Calibrated into a 50K ohm load, operable into a 5000 ohm load or greater.
5
Calibrated at factory with a 24 VDC loop supply voltage and a 250 ohm load.
Specications subject to change without notice.
Zero/Span Shift %FS/100°F (50°C) 2.0 (1.8)
Warm-up Shift <0.12% FS
Response Time 1 to 5 sec. (selectable)
Proof Pressure 2 x Full Scale
Burst Pressure 15 x Full Scale (50 psi), 10 x Full Scale (75 x
150 psi), 8 x Full Scale (250 psi)
231RS
Cable

231RS
Armored
Cable

231RS
Conduit
