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Multi-Sense
®
Model 231
Multi-Configurable, 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 Effects
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.
Specifications 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
