CRY319-S01 2cc Coupler Kit Components & Description： ◆ CRY319 2cc Coupler ◆ CRY372 Measurement microphone  CRY510 Preamplifier CRY319 is a coupler with a volume of 2cc. It’s suitable for 1/2 inch pressure field meas- uring microphones ,such as CRY372, CRY332, CRY334 etc. A hearing aid and headset by air conduction can connect to a it by an earplug (such as an ear mold or similar device). The resonant frequency of the coupler is 22.4kHz, which avoids interference to the meas- urement of the audible frequency range. The CRY372 measuring microphone is built into the coupler. Its sensitivity is 12.5mV/Pa and ground noise is 20dB(A). CRY372 measurement microphone is a pre-polarized 1/2 inch pressure field condenser microphone. It is mainly used for high-pressure level and high-frequency measurements with the dynamic range up to 168dB. CRY372 uses the Titanium membrane and it can achieve high stability and accuracy in harsh environment. CRY547 preamplifier can combine with 1/2 inch measurement microphone to transform preamplifier has the characteristic of high input impedance, low out- put impedance, lower noise, wide frequency response range, etc. It can be used for the condition of electroacoustic test system or multi-noise analysis. Meet IEC 60318-5:2006 Part 5: 2 cm3 coupler for the measurement of hearing aids and earphones coupled to the ear by means of ear inserts. Meet ANSI S3.7:2008 Methods for coupler calibration of earphones. Meet IEC 61094-4:1995 Part 4: Specifications for working standard microphones . Meet GB/T 20441.4-2006 Part 4：Specifications for working standard microphones Add: No.31-1, Xianxing Road, Xianlin Industrial Park, Yuhang District, Hangzhou, Zhejiang

CRY371-CRY507 Measurement Microphone Kit Coupler Volume Resonance Frequency Frequency Response Sensitivity mV/Pa (dBV/Pa) Dynamic range limit (ref.20uPa) Preamplifier Supply Preamplifier Connection Working Temperature Temperature Coefficient Relative Humidity Range Preamplifier & Measurement Microphone CRY510 preamplifier & CRY372 measurement microphone Add: No.31-1, Xianxing Road, Xianlin Industrial Park, Yuhang District, Hangzhou, Zhejiang

Sound cavity Pressure hole Locknut Body Lock screw Lock screw Add: No.31-1, Xianxing Road, Xianlin Industrial Park, Yuhang District, Hangzhou, Zhejiang