PCB-123A21
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PCB-123A21

  • Pressure sensor with charge output,
  • For rocket engines,
  • Measuring range 1.724 kPa,
  • Sensitivity 2.9 mV / kPa,
  • Integrated cable, length 1.2 meters,
    ending on 10-32 plug
  • of
    basic data
    measuring range (±5 V output range) 250 psi 1.724 kPa
    usable range (output range ±10 V) 500 psi 3.448 kPa [4]
    sensitivity (±15%) 20 mV / psi 2.90 mV / kPa
    maximum pressure5,000 psi 34.475 kPa
    Resolution 0.005 psi 0.034 kPa [5]
    resonance frequency ≥ 25,000 Hz [2]
    rise time (reflected pressure) &le≤ 20 µs [2]
    lower limiting frequency (-5%) 0.50 Hz
    linearity ≤ 1.0% FS [3]
    conditions
    acceleration sensitivity ≤ 0.002 psi/g ≤ 0,0014 kPa/(m/s²)
    temperature range (operation) -100 … 250 ° F -73 … 121 ° C [1]
    Temperature coefficient of sensitivity ≤ 0.03 %/°F ≤ 0,054 %/°C
    maximum shock (f & menu; r fraction of a second) 10,000 ° F 5.538 ° C
    maximum shock resistance 10.000 g pk 98.070 m/s² PK
    Technical features
    output polarity (positive pressure) positive
    discharging charging time constant (at room temperature) ≥ 1.0 s
    Supply 20 … 30 V DC
    constant power supply 2 … 20 mA
    output impedance ≤ 100 Ω
    Bias voltage 8 … 14 V DC
    Physical properties
    housing material 17-4 (Stainless steel)
    membrane INVAR
    Waterproofing epoxy resin
    electrical connection integrated cable
    mass 4.23 oz 120G
    helium flow velocity (1,500 psi) 40 SCF/h 1.13 m ³/h
    water flow rate (at 50 psi) 1.2 gal / min 4.5 l/min
    cable length 4 ft 1.2 m
    notes
    [1] specification refers to the internal amplifier, not on the Housing
    [2] with helium flow
    [3] zero-based balancing line, determined using the method of least squares
    [4] for output range supply voltage up to 10 V must be at least 24 V DC. At low bias voltage of the sensor, no negative output range is usable up to-10 V.
    [5] typically
    [6] details: see PCBs Declaration of conformance PS023
    Accessories
    065A15 seal, 0,624 "outside x 0,553" x 0.080 ", brass 3
    070A08 Cable adapter (10-32-female to BNC female)-1
    PCB-123A21

    Specific References

    Download

    123A21_drawing.PDF

    Technical drawing

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    123A21_manual.PDF

    Operating instructions

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    123A21_specs.PDF

    Technical data sheet

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