CRY5611 series of sound level calibrator is developed by JiGao, its function is to calibrate the sound level meter and Electro-acoustical tester. CRY5611 has the merit of high stability, small, light weight, low power and facility of using. Its Work frequency is 1000Hz, it has no relationship with the weighting network when be calibrated. (Attenuation of weighting network of A, B, C, D, is zero, at 1000Hz).
The Main Parameters:
1. Sound pressure level:94dB(refers to 2*10-5Pa)
Note: 1Pa  1N/m3=20μPa
2. Sound pressure level Error:≤±0.5dB(0℃---+40℃)
3. Frequency:1000Hz±2%
4. Harmonic Distortion≤1%
5. Power requirements: 9v battery 6F22
6. Environment Temperature: 0℃---+40℃
7. Relative Humidity: <80%(40℃)
8. Dimensions: Approx.80×50×32mm
9. Weight: Approx. 100g