AcSoft
Svantek UK

Measurement Microphone MM 302

The 1/4 ”measuring microphone MM 302 opens up the possibility of using high quality, externally polarized measuring microphone capsule MK 301 on measuring systems with 7-pin. LEMO connection to be used.

 

Microtech Gefell

Interested

For more information on Measurement Microphone MM 302 or to request a quote, contact our team now:

Request a QuoteContact us

The electrical connection is made via a permanently connected, three-meter-long cable including a 7-pin LEMO connector.

The MH 64 microphone holder with a 1/4 ”cone is recommended for holding the microphone. The use of the 1/4 ”measuring microphone capsule accessories, such as a windshield etc., is possible without any problems.

The measurement microphone can be calibrated with the Pistonfon Type 5002 or with other suitable sound pressure calibrators using a 1/4 “adapter.

Converter typeCapacitive pressure receiver, according to WS3F (DIN EN IEC 61094-4)
Operating transfer coefficient5 mV / Pa
Operational transmission rate-46 dB ± 1.5 dB re 1V / Pa
Free field correction for 1 kHz0 dB
Diffuse field correction for 1 kHz0 dB
Reference directionMicrophone axis
Frequency range of the free field transmission factor5 Hz to 100 kHz (± 2 dB)
Polarization voltage200 V
Limit sound pressure level for 3% harmonic distortion at 1 kHz168 dB
Limit sound pressure levelwith reduced no-load supply voltage (UL = 28 V DC)157 dB
Output voltage≤ 35 Veff
Output impedance<100 ohms
Nominal terminating impedance100 kOhm
Start-up time1 min.
Equivalent noise level DIN EN 6065135 dBA
Magnetic field influence 80 A / m, 50 Hz
Influence of mechanical vibrations 1 m / s²
Working temperature range ˂ ± 0.5 dB-25 ° C to +100 ° C
Moisture limitsrH <100%, condensation not allowed
Temperature coefficient≤ 0.01 dB / K
Static pressure coefficient1×10-5 dB / Pa
Temperature limits-50 ° C to +100 ° C
diameterwith protective cap6.35 mm ± 0.02 mm
without protective cap7.0 mm ± 0.02 mm
length
Weight
Thread for preamplifier5.7mm 60 US
Thread for protective cap6.35mm 60 US
Connectors7pol. Lemo
Memory for microphone identification

SHARE THIS

It has been a busy week at AcSoft HQ! The team have been working on building Renew kits with sound and vibration. These are ready to be delivered directly to the customer by our support team. More information about our Renew products: https://bit.ly/3E3jTOg