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Multi-Sense
®
Model 231
Multi-Congurable, Wet-to-Wet Differential Pressure Transducer
GENERAL SPECIFICATIONS
Electrical Data (Voltage) Performance Data
Circuit 3-Wire Accuracy RSS
4
(at constant temp.)
Excitation
15 to 30 VDC/18 to 30 VAC (Reverse Excitation
Protected)
Pressure Ranges A, B, C ±1.0% FS
Output
1
0 to 5 VDC, 0 to 10 VDC, 1 to 5 VDC Pressure Ranges D ±2.0% FS
Output Impedance 30 Ohms
Pressure Ranges
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
MS1 50 25 10 5 50
Electrical Data (Current)
MS2 100 50 20 10 100
Circuit 2-wire (Reverse Excitation Protected) MS3 250 125 50 25 250
Output
2
4 to 20 mA
Pressure Media
External Load 0 to 250 Ohms
Liquids or Gases Compatible with 17-4 PH Stainless Steel
Note: Hydrogen not recommended for use with 17-4 PH stainless steel
Min. Supply Voltage
15 VDC + 0.02 x (Resistance of receiver plus
line)
Thermal Eects
5
Max. Supply Voltage
30 VDC + 0.004 x (Resistance of receiver
plus line)
Compensated Range °F (°C) +32 to +130 (0 to +54)
Physical Description
Zero/Span Shift %FS/100°F (50°C) 2.0 (1.8)
Case Die Cast Aluminum, Powder Coated Warm-up Shift <0.12% FS
Pressure Fittings 1/8-18 NPT Internal Response Time 1 to 5 sec. (selectable)
Electrical Connection 1/2 in. Conduit Proof Pressure 2 x Full Scale
Size 4.0 x 6 x 2 in. (102 x 152 x 51 mm)
Burst Pressure 15 x Full Scale (50 PSI), 10 x Full Scale (75 x
150 PSI), 8 x Full Scale (250 PSI)
Weight 1.5 lb
1
Calibrated into a 50K ohm load, operable into a 5000 ohm load or greater.
2
Calibrated at factory with a 24 VDC loop supply voltage and a 250 ohm load.
3
Operating temperature limits of the electronics only. Pressure media temperatures may be
considerably higher or lower.
4
RSS of Non-Linearity, Hysteresis, and Non-Repeatability.
5
Units calibrated at nominal 70˚F. Maximum thermal error computed from this datum.
Specications subject to change without notice.
Sensor Vacity Volume 0.2 cc
Environmental Data
Operating
3
Temperature
°F (°C)
-4 to +185 (-20 to -85)
Storage Temperature
°F (°C)
-4 to +185 (-20 to +85)
MODEL 231 DIMENSIONS
5.6
141
6.0
152
0.3
9
R 0.1
2
1.2
31
2.0
51
1.7
42
1.0
24
1.6
40
1/2” Conduit
Opening
High Low
5.2
131
1/8” NPTF
IN
MM
4.6
117
4.8
122
4.0
102
2.0
51
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