PCB-HT378B02
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      PCB-HT378B02

      • 1/2 "-ICP® precision microphone for free-field applications,
      • Combination of microphone capsule 377B02 and pre-amplifier HT426E01,
      • Operating temperature up to 120 ° C,
      • Sensitivity 50 mV / PA,
      • Dynamic range > 137 dB,
      • Frequency range 3.5 … 20,000 Hz,
      • BNC connector,
      • As system calibrated
      basic data
      Nominal diameter of microphone1/2 "
      applicationfree-field
      Sensitivity in the open circuit50 mV / PA[3]
      -26 dB in relation to 1 V / PAopen circuit sensitivity (±1. 5 dB relative to 1 V / PA)[3]
      Frequency range (± 1 dB)6 … 10,000 Hz
      (±2 dB) frequency range3.5 … 20,000 Hz
      Lower limiting frequency (3)1.0 … 2.75 Hz
      noise (linear)< 32 dB in relation to 20 µPa
      noise< 17 dB(A) in relation to 20 µPa
      dynamic range (for THD ≤ 3%)> 137 dB in relation to 20 µPa
      dynamic range ( maximum without clipping)140 dB in relation to 20 µPa[1] [2]
      TEDS Chipintegrated by default[4]
      conditions of use
      Temperature range(Operation)-40 … 248 ° F-40 … 120 ° C
      Temperature coefficient of sensitivity (-10 … 70 ° C)0,004 dB/°F0.009 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 voltage0 V[5]
      Supply voltage20 … 32 V DC
      constant power supply2 … 10 mA
      Bias voltage10 … 14 V DC
      Output impedance< 55 Ω
      maximum output range±7 V pk
      Physical properties
      Housing materialstainless alloy
      pressureback[6]
      electrical connectionBNC-Plug
      Mounting thread (cap)0,5 - 60 UNS
      size - diameter (with cap)0.52 in13.2 mm
      Size - diameter (without protection cap)0.50 in12.7 mm
      size - height (with cap)3.88 in98.6 mm
      Size - height (without protection cap)3.84 in97.5 mm
      mass1.74 oz49.2 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 PCBs Declaration of conformance PS065
      Accessories
      ACS-42Calibration of a microphone with pre-amplifier-1
      (TLD) TEDS memory in accordance with IEEE P1451. 4
      Accessories
      ACS-63calibration of a microphone with pre-amplifier-1
      PCB-HT378B02

      Specific References

      Download

      HT378B02_drawing_1.PDF

      Technical drawing 1

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      HT378B02_drawing_2.PDF

      Technical drawing 2

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      HT378B02_drawing_3.PDF

      Technical drawing 3

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      HT378B02_manual.PDF

      Operating instructions

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