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Table of Contents
Summary of Contents for AWA AWA6021A
- Page 1 AWA6021A Sound Calibrator User Manual...
- Page 2 Contents 1 Overview ............2 2 Major technical specifications ......2 3 Structural features ..........3 4 Operation and maintenance ......4...
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Page 3: Overview
1 Overview AWA6021A sound calibrator is mainly used for the sensitivity calibration of measuring microphones and acoustic measuring equipment. It is small, light, stable and easy to operate and has automatic compensation of air pressure. Its performance complies with technical requirements for class 1 sound calibrator of GB/T 15173-2010 and IEC 60942: 2017. -
Page 4: Structural Features
2.11 Operating environment Temperature range: -10°C ~ +50°C Relative humidity: 25 % ~ 90 % Atmospheric pressure: 65 kPa ~ 108 kPa 3 Structural features Name ON/OFF Function Battery cover plate button switchover button Sound pressure level Adaptor regulating hole Figure 1 Calibrator Structural Diagram... -
Page 5: Operation And Maintenance
4 Operation and maintenance 4.1 Equivalent free-field sound pressure level AWA6021A sound calibrator generates 114.0 dB or 94.0 dB sound pressure level with a frequency of 1000.0 Hz in the coupled cavity. It should be corrected when used calibrate free-field microphones (including various sound level meters and ambient noise measuring instruments). - Page 6 are calibrated. Note: Since the microphones are not identical in structure, the equivalent free-field sound pressure level correction value changes according to the specific model and is subject to the specific microphone manufacturer. 4.2 Operating method Press and hold the ON/OFF button on the calibrator for 1s and release it.
- Page 7 4.3 Use of the sound pressure level of 114.0 dB When the red indicator in the calibrator stops flashing, again press and hold the button “94/114” on the calibrator for 1s and release it. The green indicator in the button is on and then the red indicator starts flashing.
- Page 8 4.5 Replacement of battery If the calibrator only works for several seconds or it automatically shuts down when the green indicator is on for 2s, it indicates low battery power and the need for battery replacement. Replacement method: (1) Remove the two rear covers and then the two LR6 batteries;...
- Page 9 should also be provided. 4.7 Regular calibration The sound calibrator should be regularly (for instance: every year) sent to the relevant department of metrology for calibration, to keep the sound pressure level accuracy. 4.8 Precautions for use (1) Promptly shut it down after use, to prevent automatic shutdown failure due to blocked coupled cavity.
- Page 10 (3) Disassembly is not allowed by persons other than maintenance staff. (4) Remove the batteries when the instrument is not to be used for a long time. contact us： sallychen@szbcelectronics.com www.szbcelectronics.com...
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