MPA215 1/2-inch microphone combination Introduction: MPA215 is a combination of MP215 microphone and MA231 preamplifier, which can be split into MP215 and MA231 according to user needs. MP215 is a 1/2-inch free field microphone suitable for measurement in non reflective free field and semi free field environments. It uses pre polarization without the need for external polarization voltage and is suitable for ICCP powered preamplifiers, complying with IEC 61094 WS2F standard. MA231 is a 1/2-inch ICCP powered preamplifier suitable for pre polarized microphones. Application scope: High precision universal acoustic testing; Non reflective free field and semi free field measurements. Technical parameters: Diameter: 1/2“ Compliant with standard (IEC 61672): Level 2 Microphone: MP215 Sound Field Type: Free Field Pre amplifier: MA231 Open circuit sensitivity (mV/Pa) (± 2 dB): 40 (-28 dB re 1V/Pa) Frequency response (Hz) (± 2 dB): 20~12.5 k Dynamic range (dBA~dB): 21~137 Maximum output voltage (Vp): ± 8 Self generated noise (dBA): 21 Output impedance (Ω):<30 Pressure equalization method: rear equalization Power supply mode: ICCP (2mA~20mA, 4mA typical) Temperature range for use (° C): -30~80 Humidity range (% RH): 0~95 Temperature coefficient (250 Hz) (dB/° C): -0.02 Pressure coefficient (250 Hz) (dB/kPa): -0.01 Humidity impact (dB):<0.1 Size (mm): Ø 13.2 × 91.1 Output interface: BNC Weight (g): 32.6 TEDS version: MPA265
Introduction: MPA215 is a combination of MP215 microphone and MA231 preamplifier, which can be split into MP215 and MA231 according to user needs. MP215 is a 1/2-inch free field microphone suitable for measurement in non reflective free field and semi free field environments. It uses pre polarization without the need for external polarization voltage and is suitable for ICCP powered preamplifiers, complying with IEC 61094 WS2F standard. MA231 is a 1/2-inch ICCP powered preamplifier suitable for pre polarized microphones. Application scope: High precision universal acoustic testing; Non reflective free field and semi free field measurements.
