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CASTLE dBCal Class 2 / 1 Triple Level Acoustic Calibrator

CASTLE dBCal Class 2 / 1 Triple Level Acoustic Calibrator

Models:

GA612-dBCal Class 2 Triple Level Acoustic Calibrator
GA611-dBCal Class 1 Triple Level Acoustic Calibrator

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Description
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Description
  


The Castle dBCal Class 1 Triple Level Acoustic Calibrator GA611 is a precision field calibrator for sound level meters, offering three output levels (94 dB, 104 dB, 114 dB at 1 kHz) to verify meter accuracy before and after measurements. Its line-of-sight surface aligns controls and display with the sound meter for effortless, accurate calibration. Compliant with IEC 60942:2017, BS EN IEC 60942:2018 and ANSI S1.40:2006, the GA611 delivers rugged reliability and long battery life for on-site use.

Features

  • Standards compliance: IEC 60942:2017; BS EN IEC 60942:2018; ANSI S1.40:2006
  • Three output levels: 94 dB, 104 dB, 114 dB at 1 kHz for versatile testing
  • Line-of-sight ergonomics: controls and display on the same surface as the meter
  • Simple operation: power on and calibrate
  • Ultra-low distortion (< 1.6 % harmonic distortion)
  • MEMS microphone feedback for atmospheric pressure compensation
  • Auto power-off after 1 minute idle (unless wireless calibration is active)
  • User-upgradable software for future standards support

Common Applications

  • Field “pre- and post-measurement” calibration of Class 1 sound level meters
  • Occupational noise surveys and compliance checks (Noise at Work)
  • Environmental noise monitoring instrument verification
  • Routine performance checks in acoustics laboratories

Specifications

Parameter GA611 (Class 1)
Standards IEC 60942:2017; BS EN IEC 60942:2018; ANSI S1.40:2006
Output Levels 94 dB, 104 dB, 114 dB @ 1 kHz
Tolerance ± 0.25 dB
Harmonic Distortion < 1.6 %
Temperature Range – 10 °C to + 50 °C
Relative Humidity 25 % to 90 %
Atmospheric Pressure 65 to 108 kPa
Nominal Conditions 101.3 kPa, 23 °C, 50 % RH
Batteries 2 × 1.5 V AA alkaline
Battery Life approx. 70 hours continuous
Auto Power-off 1 minute idle (unless wireless calibration is active)
Cavity Diameter ½″ microphone standard
Software User-upgradable for future-proofing


Parameter GA612 (Class 2)
Standards IEC 60942:2017; BS EN IEC 60942:2018; ANSI S1.40:2006
Output Levels 94 dB, 104 dB, 114 dB @ 1 kHz
Tolerance ± 0.4 dB
Harmonic Distortion < 3 %
Temperature Range 0 °C to 40 °C
Relative Humidity 25 % to 90 %
Atmospheric Pressure 65 to 108 kPa
Nominal Conditions 101.3 kPa, 23 °C, 50 % RH
Batteries 2 × 1.5 V AA alkaline
Battery Life approx. 70 hours continuous
Auto Power-off 1 minute idle (unless wireless calibration is active)
Cavity Diameter ½″ microphone standard
Software User-upgradable for future standards support

Shipping & Payment

Delivery Options

  • Store Pickup
  • Local Delivery

Payment Options

  • Bank transfer / cheque deposit

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