Castle

Calibrator, Dual Level, Class 1 (Includes Ga690 Barometer)

DISCONTINUED
Product code: GA607

Unfortunately, the GA607 has been discontinued, check out our other Sound Level Calibrators for more options.

Calibrator, Dual Level, Class 1 (includes GA690 Barometer). Regular calibration of any sound level meter is called for in virtually all standards, legislation and codes of practice. A calibrator should be purchased with all instruments.

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Unfortunately, the GA607 has been discontinued, check out our other Sound Level Calibrators for more options.
The GA607 meets the demanding standards of a class 1 calibrator. It features two calibration levels, 94dB and 104dB re 20Pa both at 1kHz. It is for use with microphones. Using the GA607, a sound level meter can be checked at two meter scale points and usually on two ranges.

IEC 60942 states that for a calibrator to be used in the Class 1 category, it must be corrected for barometric pressure. The Castle GA690 barometer is supplied with the GA607 Class 1/C calibrator for just this purpose. With a simple readout on the clear display and a correction table printed on the reverse, this is a simple process.

Supplied with a manufacturers calibration certificate!

Applicable Standards:
IEC60942:2003 Sound Calibrators, Class 1/C.

Output:
94dB or 104dB relative to 20Pa

Nominal Sound Pressure level at 101.3kPa (760mm Hg) 23 & 50%RH
Tolerance: 0.3dB
Harmonic Distortion: < 3%

Temperature range:
-10C to 50C

Batteries:
2 x 3V CR2032 (Coin Cell)
Life: approx. 70 hours

Dimensions:
Cavity diameter: " microphone standard
Length: 140mm,
Diameter: 51mm
Weight: 230gms

GA690 Barometer Specifications (included in kit)
Measuring Range: 0 to 1300mbar (0 to 975mmHg)
Resolution: 1mbar, 1mmHg
Accuracy: 0.25% FS hysteresis and linearity
Battery: 9V Alkaline type 6LR61 (PP3)
Battery life: Greater than 2500 hours
Dimensions: 106 x 67 x 30mm (LxWxH)
Weight: 135g incl. battery

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