AcSoft
Svantek UK

Measurement Microphone M 372

The 1/4 ”electret measurement microphone M 372 is a sensor that can be connected directly to the analogue audio inputs of computers or mobile devices.

Microtech Gefell

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The class 1 frequency response according to IEC 61672, the extremely high sensitivity of 25 mV / Pa in this category and the 7 mm standard diameter are considered special advantages and are comparable to conventional measurement microphones. The electret capsule and preamplifier circuit form an inseparable unit in a cylindrical metal housing. The electrical connection of the measurement microphone is made via a Microdot connector and a corresponding adapter cable on a two- or four-pole 3.5mm jack plug.

The measurement microphone can be calibrated with the Pistonfon 5002 and common sound pressure calibrators using a 1/4 “adapter.

The conical shape of the microphone holder MH 64 for a diameter of 7 mm and the windshield W 3 are recommended as optional accessories.

Converter typeElectret pressure receiver
CharacteristicBullet
Frequency range20 Hz to 20 kHz class 1 free field
Phase rotation180 °
Idle transmission coefficient25 mV / Pa (f = 1 kHz, UB = 5 V DC, RV = 4.7 kOhm)
No-load transfer rate-32 dB ± 3.0 dB re 1V / Pa
Limit sound pressure levelfor 3% harmonic distortion at 1 kHz108 dB (max.SPL for THD ≤ 3% at 1 kHz, UB = 1.8 V DC, RV = 2.5 kOhm)
Equivalent noise level DIN EN 6065128 dB A
Operating current0.25 mA DC
No-load supply voltage1.5 V DC to 12 V DC
Working temperature range-20 ° C to +70 ° C
ConnectorsMALCO Microdot 10 – 32 UNF – 2 A
diameterØ 7 mm
length54 mm

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