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1/4" High SPL Measurement Mic
51 dBA - 155 dB
RG-50HL

The ¼” electret microphone RG-50HL is a free field microphone with integrated electronics designed for the IEPE 4 mA constant current supply at 24 Volt DC.

The microphone sensitivity with 5 mV/Pa allows noise measurements up to 155 dB peak.

The membrane is protected against mechanical
damage by a protective grid.

  • Type 1 according to IEC 651
  • 5Hz to 20 kHz
  • 51dB(A) to 155dB
  • pre-polarized

Application:

  • Airbag Bang
  • Explosion analysis
  • Explosion detection
  • Shooting noise
  • Gunshot sound

1/4" measurement microphone for
extreme high sound pressure levels
60 dBA - 186 dB

The 1/4″ microphone set consisting of the MV310 and the microphone capsule MK342 E has a constant pressure curve and is therefore optimized for correct acoustic measurements at interfaces or in acoustic couplers with extreme sound pressure levels.

MK342 E + MV310 set

1/4" measurement microphone with
constant pressure frequency response

The static air pressure is compensated by means of a capillary to the preamplifier (back-ventilated) or by means of a side capillary (side-ventilated).

The membrane is protected against mechanical
damage by a protective grid.

  • WS3P according to IEC 61094-4
  • Print
  • 3.5Hz to 70kHz
  • 60dB(A) to 186dB
  • pre-polarized

Application:

  • Airbag Bang
  • Explosion analysis
  • Explosion detection
  • Shooting noise
  • Gunshot sound

1/4" Microphone Capsule
Specifications

Model
MK 342 E microphone capsule WS3P according to IEC 61094-4
Diameter
1/4″
Frequency Range
3.5 Hz ~ 70 kHz
Responce Type
Capacitive pressure transducer
Electrode Forming Voltage
0 V
Sensitivity (dB re 20 μPa)
0.25 mV/Pa (± 3 dB)
Capacitance at 1 kHz
4.7 pF
Maximum Sound Pressure Level
186 dB peak
Intrinsinc Noise Level
60 dB (A)
Operating Temperature Range
-20 °C ~ +100 °C
Operating Humidity Range
25 % ~ 90 %(RH)
Storage Humidity Range
25 % ~ 90 %(RH)
Venting
Rear or side
Outer Dimensions
Ф 7 mm x 9.7 mm
Weight
2 gram

1/4" IEPE Microphone Preamplier
Specifications

Model
MV310 Preamplifier
Frequency Response (re. 250 Hz)
20 Hz ~ 100 kHz
Gain @ 1 kHz
0 dB
Intrinsic Noise
(20Hz ~ 20kHz)
<4.7 μV A-weighting
Distortion(THD) @1kHz 1 V
<0.1%
Output Impedance
<100Ω
Max. Output Voltage
8.2 V RMS
IEPE Power Voltage
24 V ~ 30 V
IEPE Current
2 mA ~ 10 mA
Polarization Voltage
0 V
Dimensions
Ø 6.3 x 57.8 mm
Weight
<6 g (cable not included)
Operating Temperature
-20°C ~ + 100°C
Humidity
25 %~ 90 %(RH)
Atmospheric Pressure
65 kPa~108 kPa
Connector Type
MALCO microdot, 10-32 UNF-2A
Thread for Microphone
Capsule Mounting
5.7 mm-60 UNS
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