|Available Outside the UK?||Yes|
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.
To operate the GA601, simply switch the return switch to the right hand side. The switch will then return to the centre and the GA601 Acoustic Calibrator will product a tone of 94dB at 1000Hz for 60 seconds, after which it will automatically switch off.
|Applicable Standards||IEC60942:2003 Sound Calibrators, Class 2/C|
|Output|| 94dB relative to 20µPa |
Nominal Sound Pressure level at 101.3kPa (760mm Hg) 23° & 50%RH
|Harmonic Distortion||< 3%|
|Temperature Range||-10°C to 50°C|
|Batteries|| 2 x 3V CR2032 (coin cell) |
Life: Approx. 70 Hours
|Dimensions|| Cavity Diameter: 1/2" microphone standard |