Model: 121A44

$2,095.00 USD
(Pricing valid in US only)

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Intrinsic safe ICP® pressure sensor, 50 psi, 100 mV/psi, case isolated, 2-pin connector, temp to 250F

  • Measurement Range: 50 psi (344.8 kPa)
  • Sensitivity: (±15%) 100 mV/psi (14.5037 mV/kPa)
  • Low Frequency Response: (-5%) 0.5 Hz
  • Resonant Frequency: >=60 kHz (>=60 kHz)
  • Electrical Connector: 2-Pin MIL-C-5015
  • Weight: 2.7 oz (75.6 gm)

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Measurement Range (for ±5V output)50 psi344.8 kPa 
Sensitivity (±15 %)100 mV/psi14.5037 mV/kPa 
Maximum Pressure8 kpsi55.16 MPa[2] 
Resolution0.5 mpsi0.003 kPa 
Resonant Frequency≥60 kHz≥60 kHz 
Rise Time (Reflected)≤4 µ sec≤4 µ sec 
Low Frequency Response (-5 %)0.5 Hz0.5 Hz 
Non-Linearity≤2.0 % FS≤2.0 % FS[1] 
Acceleration Sensitivity≤0.05 psi/g≤0.035 kPa/(m/s²) 
Temperature Range (Operating)-65 to +250 °F-54 to +121 °C 
Hazardous Area ApprovalCSA (C-US) NRTL - Canadian Standards AssociationCSA (C-US) NRTL - Canadian Standards Association[3][4][5][6] 
Hazardous Area ApprovalATEXATEX[7][8][9] 
Output Polarity (Positive Pressure)PositivePositive 
Discharge Time Constant (at room temp)≥1.0 sec≥1.0 sec 
Excitation Voltage22 to 28 VDC22 to 28 VDC 
Constant Current Excitation2 to 20 mA2 to 20 mA 
Output Impedance<100 Ohm<100 Ohm 
Output Bias Voltage10 to 15 VDC10 to 15 VDC 
Electrical Isolation≥100000000 Ohm≥100000000 Ohm 
Sensing GeometryCompressionCompression 
Sensing ElementQuartzQuartz 
Housing Material316L Stainless Steel316L Stainless Steel 
Diaphragm316L Stainless Steel316L Stainless Steel 
SealingWelded HermeticWelded Hermetic 
Electrical Connector2-Pin MIL-C-50152-Pin MIL-C-5015 
Weight2.7 oz75.6 gm 

All specifications are at room temperature unless otherwise specified.


Product Notes
[1] Zero-based, least-squares, straight line method.
[2] Due to high sensitivity, the static pressure should be applied and removed very slowly. Rate should prevent more than 10 Volt change in output until Output Bias Voltage returns to normal (approximately 15 times discharge time constant).
[3] AEx nA IIC T4, DIV2 CL1 GR A-D
[4] Ex nL IIC T4, DIV2 CL1 GR A-D
[5] AEx ia IIC T4, DIV1 CL1 GR A-D
[6] Ex ia IIC T4, DIV1 CL1 GR A-D
[7] Ex ia IIC T4.
[8] Ex nL IIC T4.
[9] Ex nA IIC T4.
[10] See PCB Declaration of Conformance PS059 for details.
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