AWA6028Multi functional sound calibratorIntroduction:

AWA6028Multi functional sound calibratorCompliant with standards: GB/T 15173-2010/IEC 60942: Technical requirements for Level 1 sound calibrator in 2017. It is a portable sound level meter calibration device that can calibrate the frequency response, time weighting, and burst sound response of the sound level meter according to the requirements of JJG188. In daily use, users can calibrate themselves using a calibration device. According to the relevant environmental noise measurement methods, a sound calibrator must be used for calibration before and after noise measurement, and the deviation between the two calibration readings cannot exceed 0.5 dB.

A sound calibrator is a sound source that can generate one or several constant sound pressures at one or several frequency points. It is used to calibrate the absolute sound pressure sensitivity of test microphones, sound level meters, and other acoustic measurement instruments. The GB/T 15173-2010 and IEC 60942:2017 standards for electroacoustic sound calibrators classify the accuracy levels of sound calibrators into LS level, level 1, and level 2. LS level is generally only used in laboratories, while levels 1 and 2 are used on site. A level 1 sound level meter should be calibrated using a level 1 sound calibrator, while a level 2 sound level meter can be calibrated using either a level 1 or level 2 sound calibrator.

Product Features:

• Can generateThe most diSound pressure level at 20 Hz, maximum frequency of 16 KHz
• Can generate pure tone signals of 4 kHz for more than 10 seconds and automatically stop to calibrate time weighting characteristics
• Can generate delayed bursts of 10 ms, 50 ms, 200 ms, 500 ms and repeated bursts to test burst and repeated burst responses
• Suitable for free field, pressure field, and diffusion field microphones

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Technical parameters: