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 psi1.724 kPa
      usable range (output range ±10 V)500 psi3.448 kPa[4]
      sensitivity (±15%)20 mV / psi2.90 mV / kPa
      maximum pressure5,000 psi34.475 kPa
      Resolution0.005 psi0.034 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 ° F5.538 ° C
      maximum shock resistance10.000 g pk98.070 m/s² PK
      Technical features
      output polarity (positive pressure)positive
      discharging charging time constant (at room temperature)≥ 1.0 s
      Supply20 … 30 V DC
      constant power supply2 … 20 mA
      output impedance≤ 100 Ω
      Bias voltage8 … 14 V DC
      Physical properties
      housing material17-4 (Stainless steel)
      membraneINVAR
      Waterproofingepoxy resin
      electrical connectionintegrated cable
      mass4.23 oz120G
      helium flow velocity (1,500 psi)40 SCF/h1.13 m ³/h
      water flow rate (at 50 psi)1.2 gal / min4.5 l/min
      cable length4 ft1.2 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
      065A15seal, 0,624 "outside x 0,553" x 0.080 ", brass3
      070A08Cable 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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