PCB-378B11
    zoom_out_map

      PCB-378B11

    • 1/2 "-ICP® precision microphone for pressure applications,
    • Combination of microphone capsule PCB-377 B 11 / preamp PCB-426E01,
    • Sensitivity 50 mV / PA,
    • Dynamic range > 135 dB,
    • Frequency range 3.75 … 10,000 Hz,
    • BNC connector,
    • As system calibrated
    • basic data
      Nominal diameter of microphone1/2 "
      applicationpressure field
      Sensitivity in the open circuit50 mV / PA[3]
      sensitivity in the open circuit (±1. 5 dB)-26 dB in relation to 1 V / PA[3]
      Frequency range (± 1 dB)7.0 … 7,500 Hz
      (±2 dB) frequency range3.75 … 10,000 Hz
      lower limiting frequency (-3 dB)1.0 … 3.0 Hz
      Noise (linear)< 20 dB in relation to 20 µPa
      noise< 16.5 dB(A) in relation to 20 µPa
      Dynamic range (for THD ≤ 3%)> 135 dB in relation to 20 µPa
      dynamic range (maximum without clipping)138 dB in relation to 20 µPa[1] [2]
      TEDS Chipintegrated by default[4]
      conditions
      temperature range(Operation)-40 … 176 ° F-40 … 80 ° 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 … 30 V DC
      constant power supply2 … 20 mA
      Bias voltage10 … 14 V DC
      Output impedance< 50 Ω
      maximum output range±7 V pk
      Physical properties
      housing materialstainlessAlloy
      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 in 12.7 mm
      size - height (with cap)3.62 in91.9 mm
      size - height (without protection cap)3.58 in90.9 mm
      mass1.63 oz45.8 g[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 PS064
      Accessories
      ACS-42calibration of 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-378B11

      Specific References

      Download

      378B11_drawing_1.PDF

      Technical drawing 1

      Download (105.73k)

      378B11_drawing_2.PDF

      Technical drawing 2

      Download (306.47k)

      378B11_drawing_3.PDF

      Technical drawing 3

      Download (307.24k)

      378B11_manual.PDF

      Operating instructions

      Download (1.8M)