Sound field type
Free field type
Sensitivity, mV/Pa (dBV/Pa)
50 mV/Pa (-26 dB) ± 2 dB
Frequency response range
10 Hz - 20 kHz (±2 dB)
Polarization voltage
0V
Dynamic range (based on 20 uPa)
14~130dB
Upper limit of dynamic range (based on 20 uPa)
≥138dB (250Hz,distortion < 3%)
Equivalent noise (based on 20 uPa)
≤15dBA(250Hz)
Range of operating temperature
-30℃ ~ +70℃
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