리퍼비시 계측기
리퍼비시 계측기
Type 4191-L-001
- ModelType 4191-L-001
- MakerB&K
- DescriptionMicrophone, With Type 2669 Preamplifier
- Rental문의요망
- Stock문의요망
Type 4191-L-001 is designed for high-precision, free-field measurements where a robust and stable free-field microphone with a wide bandwidth is required.
USE SCENARIOS
- Precision measurements to 40 kHz
- Premium class sound level meters
- Equipment complying with IEC 61672 class 1
THIS MICROPHONE SET IS A COMBINATION OF:
- Microphone Type 4191
- Preamplifier Type 2669-L
Capacitance : pF
Diameter : 1/2
Dyn. range : 21.4 – 162 dB
Freq. range : 3.15 – 40000 Hz
Inherent noise : 21.4 dB A
Lower limiting frequency -3dB : 3.15 Hz
Optimised : Free field
Polarization : Ext polarized
Polarization voltages : 200 V
Pressure coefficient : -0.007 dB/kPa
Sensitivity : 12.5 mV/Pa
Standards : IEC 61094-4 WS2F
Temperature coefficient : -0.002 dB/ºC
Temperature range : -20 – 80 ℃
Venting : Side
Weight : gram
Sound field : Free-field
Input type : Classic
Microphone type : Free field
