PCB-HT378B02
zoom_out_map

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 microphone 1/2 "
application free-field
Sensitivity in the open circuit 50 mV / PA [3]
-26 dB in relation to 1 V / PA open circuit sensitivity (±1. 5 dB relative to 1 V / PA) [3]
Frequency range (± 1 dB) 6 … 10,000 Hz
(±2 dB) frequency range 3.5 … 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 Chip integrated 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/°F 0.009 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 voltage 0 V [5]
Supply voltage 20 … 32 V DC
constant power supply 2 … 10 mA
Bias voltage 10 … 14 V DC
Output impedance < 55 Ω
maximum output range ±7 V pk
Physical properties
Housing material stainless alloy
pressure back [6]
electrical connection BNC-Plug
Mounting thread (cap) 0,5 - 60 UNS
size - diameter (with cap) 0.52 in 13.2 mm
Size - diameter (without protection cap) 0.50 in 12.7 mm
size - height (with cap) 3.88 in 98.6 mm
Size - height (without protection cap) 3.84 in 97.5 mm
mass 1.74 oz 49.2 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-42 Calibration of a microphone with pre-amplifier -1
(TLD) TEDS memory in accordance with IEEE P1451. 4
Accessories
ACS-63 calibration of a microphone with pre-amplifier -1
PCB-HT378B02

Specific References

Download

HT378B02_drawing_1.PDF

Technical drawing 1

Download (105.73k)

HT378B02_drawing_2.PDF

Technical drawing 2

Download (310.68k)

HT378B02_drawing_3.PDF

Technical drawing 3

Download (311.39k)

HT378B02_manual.PDF

Operating instructions

Download (1.77M)