Sound field type
Free field type
Sensitivity, mV/Pa (dBV/Pa)
40 mV/Pa(-28 dB) ± 2 dB
Frequency response range
3.15 Hz - 16 kHz (±2 dB)
Polarization voltage
0V
Dynamic range (based on 20 uPa)
16～138dB
Upper limit of dynamic range (based on 20 uPa)
≥138dB （250Hz，distortion < 3%）
Equivalent noise (based on 20 uPa)
≤16dBA（250Hz）
Range of operating temperature
-20℃ ～ +60℃
Temperature coefficient
0.012dB /℃（-10℃ ～ +50℃，250Hz）
Static pressure coefficient
-0.01dB /kPa
Relative humidity range
0～90%(without condensation)
Relative humidity coefficient
<0.1dB(0 - 90% without condensation)
Pressure equalization method
Post-pressure equalization
IEC 61094-4 Designation
WS2F
Input impedance
>10GΩ/0.5pF
Output impedance
<20Ω，<0.1%
Max. output voltage
>5.0Vrms (+24 V available)
Power supply
IEPE（2mA～10mA）
Rated operational current
4mA
Noise (A-weighted)
<3µVrms
Linearity (20 - 20 KHz)
<10µVrms
Gain
-0.7dB
Connector
BNCport