Model : 123B22 | ICP® Pressure Sensor

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Rocket motor ICP® pressure sensor 3000 psi 1mV/psi Helium bleed water-cooled (replaceable tubes)

This new sensor replaces Model 123A22. Model 123B22 features water cooling tubes that may be replaced on site without returning the entire sensor back to PCB for service.

  • Measurement Range: 3000 psi (20685 kPa)
  • Sensitivity: (±15%)1.0 mV/psi (0.145 mV/kPa)
  • Low Frequency Response: (-5%)0.001 Hz
  • Resonant Frequency: >=25 kHz (>=25 kHz)
  • Electrical Connector: Integral Cable
  • Weight: 4.59 oz (130 gm)
English: SI:
Performance
Measurement Range (for ± 3V output) 3000 psi 20685 kPa
Sensitivity (±15 %) 1.0 mV/psi 0.145 mV/kPa
Maximum Pressure 5000 psi 34475 kPa
Resolution 0.1 psi 0.689 kPa [2]
Resonant Frequency ≥25 kHz ≥25 kHz [3]
Rise Time (Reflected) ≤20 µ sec ≤20 µ sec [3]
Low Frequency Response (-5 %) 0.001 Hz 0.001 Hz
Non-Linearity ≤1.0 % FS ≤1.0 % FS [1]
Environmental
Acceleration Sensitivity ≤0.002 psi/g ≤0.0014 kPa/(m/s²)
Temperature Range (Operating) -100 to +250 °F -73 to +121 °C [4]
Temperature Coefficient of Sensitivity ≤0.03 %/°F ≤0.054 %/°C
Maximum Flash Temperature 10000 °F 5538 °C
Maximum Vibration 2000 g pk 19600 m/s² pk
Maximum Shock 10000 g pk 98070 m/s² pk
Electrical
Output Polarity (Positive Pressure) Positive Positive
Discharge Time Constant (at room temp) ≥500 sec ≥500 sec
Excitation Voltage 20 to 30 VDC 20 to 30 VDC
Constant Current Excitation 2 to 20 mA 2 to 20 mA
Output Impedance ≤100 Ohm ≤100 Ohm
Output Bias Voltage 8 to 12 VDC 8 to 12 VDC
Physical
Housing Material 17-4 Stainless Steel 17-4 Stainless Steel
Diaphragm Invar Invar
Sealing Epoxy Epoxy
Electrical Connector Integral Cable Integral Cable
Weight (without cable) 4.59 oz 130 gm
Helium Flow Rate (at 1,500 psi) 40 scf/hr 1.13 m³/hr
Cable Length 4 ft 1.2 m
Water Flow Rate (at 50 psi) 1.2 gal/min 4.5 L/min
* All specifications are at room temperature unless otherwise specified
.


Specification Notes


[1] Zero-based, least-squares, straight line method.
[2] Typical.
[3] With helium flow.
[4] Applies to internal amplifer, not to external housing.
[5] See PCB Declaration of Conformance PS023 for details.


Accessories


Supplied
070A08 Cable adaptor (10-32 jack to BNC jack) 1
065A72 Replacment cooling tubes, set of 2 each, with o-rings, for series 123B 2
065A15 Seal, 0.624" OD x 0.553" ID x 0.080" thk, brass (for Series M121Axx & 123A) 3