PCB-378A13
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PCB-378A13

  • 1/2 "-ICP® precision microphone for pressure applications,
  • Combination of microphone capsule PCB 377A13 and preamp PCB-426E01,
  • Sensitivity 12.6 mV / PA,
  • Dynamic range > 147 dB,
  • Frequency range 4 … 20,000 Hz,
  • BNC connector,
  • As system calibrated
  • basic data
    Nominal diameter of microphone 1/2 "
    application pressure field
    Sensitivity in the open circuit 12.5 mV / PA [3]
    the open circuit sensitivity -38 dB in relation to 1 V / PA [3]
    Frequency range (±2 dB) 4 … 20,000 Hz
    lower limiting frequency (3) 1.0 … 3.0 Hz
    noise (linear) < 28 dB in relation to 20 µPa
    noise < 23 dB(A) in relation to 20 µPa
    dynamic range (for THD ≤ 3%) > 147 dB in relation to 20 µPa
    Dynamic range (maximum without clipping) 148 dB in relation to 20 µPa [1] [2]
    TEDS Chip integrates by default [4]
    conditions
    temperature range (operation) -40 … 176 ° F -40 … 80 ° C
    temperature coefficientTemperature coefficient of sensitivity (-10 … 70 ° C) 0,004 dB/°F 0,008 dB/°C [1] [3]
    influence of static pressure -0.013 dB/kPa [1]
    Influence by humidity (0 … 100%, non-condensing) -0.01 … 0.01 dB/% RH [3]
    influence by axial vibration (0.1 g, 1 m/s²) 66 dB in relation to 20 µPa [1]
    technical characteristics
    polarization voltage 0 V [5]
    supply 20 … 30 V DC
    constant power supply 2 … 20 mA
    Bias voltage 10 … 14 V DC
    output impedance < 50 Ω
    Maximum output range ±7 V pk
    physical properties
    parts usematerial stainless alloy
    pressurised rear [6]
    electrical connection BNC-Plug
    mounting thread (cap) 0,5 - 60 UNS
    Size - diameter (with cap) 0.52 at 13.2 mm
    Size - diameter (without protection cap) 0.50 in 12.7
    size - height (with cap) 3.50 in 88.9 mm
    Size - height (without protection cap) 3.46 in 87.9 mm
    weight 1.58 oz 44.5 grams [1]
    notes
    [1] typically
    [2] peak
    [3] based on 250 Hz
    [4] TEDS memory in accordance with IEEE PP1451. 4
    [5] Prepolarized
    [6] pressure compensation by the Pre
    [7] details: see PCB Declaration ofConformance PS064
    Accessories
    ACS-42 calibration of a microphone with pre-amplifier -1
    (TLD) provided TEDS store ß IEEE P1451. 4
    equipment
    ACS-63 calibration microphone with pre-amplifier -1
    PCB-378A13

    Specific References

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    378A13_drawing_1.PDF

    Technical drawing 1

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    378A13_drawing_2.PDF

    Technical drawing 2

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    378A13_drawing_3.PDF

    Technical drawing 3

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    378A13_manual.PDF

    Operating instructions

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