Most Measurement codes of practice and good practice demand that an independent acoustic calibration of any sound level meter should be made before and after a series of measurements and the Castle GA601 provides just that facility. It produces a calibration tone of 1000Hz at a level of 94dB re 20µPa at the microphone. It is supplied with a ½" cavity.
This calibrator provides an accurate, stable and simple to use sound source for carrying out the acoustic calibration of a wide range of sound level meters. It produces two levels, 94dB and 104dB re 20µPa at the microphone. The calibrator is also supplied with a ½ “cavity.
It is switch operated and engages the selected sound source for one minute, after which it automatically turns off. The GA601 has been designed for use with Castle Sound Level Meters as well as a variety of other brands which feature a nominal half inch microphone capsule.
- 94dB relative to 20μPa
- Built to the requirements of IEC60942:2003 Sound Calibrators, Class 2/C.