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.
You may also be interested in the following product(s)
GA607 Dual Level Acoustics Calibrator
£435.00
|
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
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
IEC60942:2003 Sound Calibrators, Class 2/C.
Output
94dB relative to 20µPa
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
