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Measurement Microphone MM 220

The 1/2 ”measuring microphone MM 220 opens up the possibility of using high quality, pre-polarized measuring microphone capsule MK 250 on measuring systems with phantom power.

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Overview
Specification
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The electrical connection is made via a permanently connected, two-meter-long XLR cable.

We recommend the MH 64 microphone holder with a 1/2 ”clamp to hold the microphone. The use of the 1/2 ”measuring microphone capsule accessories such as windshield, nose cone, dry adapter etc. is possible without any problems.

The measurement microphone can be calibrated with the Pistonfon Type 5002 or with other suitable sound pressure calibrators.

Converter typeCapacitive pressure receiver, according to WS2F (DIN EN IEC 61094-4)
Operating transfer coefficient50 mV / Pa
Operational transmission rate-26 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 factor3.5 Hz … 20 kHz, class 1 DIN EN 60 651
Polarization voltage0 V
Output voltage≤ 5 Veff at 1 kHz / 0.5% THD
Output impedance<100 ohms
Nominal terminating impedance
Start-up time1 min.
Equivalent noise level DIN EN 6065115 dBA
Magnetic field influence 80 A / m, 50 Hz<22 dB
Influence of mechanical vibrations 1 m / s²60 dB (20 Hz to 1 kHz)
Working temperature range ˂ ± 0.5 dB-25 ° C to +100 ° C
Temperature coefficient≤ 0.01 dB / K
Static pressure coefficient1×10-5 dB / Pa
Temperature limits-50 ° C to +100 ° C
Moisture limitsrH <100%, condensation not allowed
diameterwith protective cap13.2 + 0.05 mm
without protective cap12.7 + 0.05 mm
length
Weight
Thread for preamplifier11.7mm 60 US
Thread for protective cap12.7mm 60 US
ConnectorsXLR
Memory for microphone identification

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