Productions Microphones Microphone Capsules Prepolarized Free Field MP215

MP215
  • Introduction
  • Specification
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     MP215 microphone is a 1/2" prepolarized free-field measurement microphone and the best choice for use in IEC61672 Class 2 Sound Level Meters and other noise measurements requiring Class 2 accuracy.

 

The microphone diaphragm of MP215 is also made from a nickel alloy using BSWA diaphragm coating technology while the housing is made from stainless steel. The temperature, pressure, and humidity coefficients are better than IEC 61672 Class 2 requirements.

 

MP215 is an excellent all around Class 2 microphone with proven design for quality, reliability, stability, and performance.

 

Specification
Diameter 1/2 inch
Diaphragm Material Nickel
Housing Material Stainless Steel
Open Circuit Sensitivity -28 dB±3 dB (40 mV/Pa)
Capacitance (Typical) 13pF
Response Free-field
Polarization Voltage 0V
Frequency Response 8 Hz ~ 12.5 kHz
Cartridge Thermal Noise < 18 dB (A)
Pressure Equalization Vent Rear Vented
Operating Temperature -20°C~ 80°C.
Operating Humidity 0 ~ 98% RH
Equivalent Air Volume 240 mm3 at 250 Hz
Temperature Coefficient (0°C ~ 40°C) <±0.2 dB at 250 Hz, at reference temperature 23 °C
Humidity Coefficient 20% - 90% RH <±0.2 dB at 250 Hz at temperature 40°C, and reference 50% RH
Pressure Coefficient 85 kPa ~ 108 kPa: SPL change < ±0.6 dB at 250 Hz at reference pressure 101 kPa. 65 kPa ~ 85 kPa: SPL change < ±1.2 dB at 250 Hz
Dimensions IEC 61094-4 Type WS 2
Dynamic Range > 146 dB
Copyright BSWA Technology Co., Ltd. 1998-2009. All Rights Reserved. Updated on 21st, April, 2014