Detail Single Level Acoustic Calibrator, Model : GA601, Brand : Castle
Description
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 20µ Pa at the microphone. It is supplied with a ½ " cavity.
Specification
Applicable Standards
IEC60942: 2003 Sound Calibrators, Class 2/ C.
Output
94dB relative to 20µ Pa
Nominal Sound Pressure level at 101.3kPa ( 760mm Hg) 23° & 50% RH
Tolerance: ± 0.3dB
Harmonic Distortion: < 3%
Temperature range:
-10° C to 50° C
Batteries
2 x 3V CR2032 ( Coin Cell)
Life: approx. 70 hours
Dimensions
Cavity diameter: ½ " microphone standard
Length: 140mm,
Diameter: 51mm,
Weight: 230gms
