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China Shenzhen Baichuan electronics Co., LTD

Professional manufacturer of acoustic test instruments.


Electret tester & microphone tester/

AWA6063B electret tester (digital display)

Main technical indicators:

  1. Test frequency: 70 Hz, 1 kHz, and 5 kHz. Each frequency can be set arbitrarily between 20 Hz and 8 kHz (step 10 Hz); Frequency accuracy ± 1%
  2. Sensitivity measurement range: - 70 dB ~ - 20 dB (with 1 V / PA as reference); Resolution 0.1 dB
  3. Test accuracy: ± 0.5 dB
  4. Working current measurement range: 0 μ A~500 μ A. Three-digit digital display, resolution 1 μ A
  5. The working voltage of the microphone under test: 1.0V ~ 6.0V, which can be adjusted in steps of 0.1V, and the voltage accuracy is ± 3%;
  6. Load resistance: 680 Ω, 1 K Ω, 1.5 K Ω, 2 K Ω, 2.2 K Ω, 3 K Ω, accuracy ± 1%
  7. Display: 128 × 128 dot matrix LCD digital display;
  8. Sound source: metal diaphragm loudspeaker, power: 0.5 w
  9. Sound pressure of sound source: 94 dB (0 dB = 2 × 10-5 PA), and each frequency can be adjusted separately within the range of 94 DB ± 10 dB
  10. Harmonic distortion of sound source: < 2%
  11. Startup measurement mode: automatic startup when the working current exceeds the limit or interface level control startup
  12. Start measurement delay: 0s ~ 10.0s, adjustable in steps of 0.1s
  13. Measurement time: continuous, 0.1s ~ 10.0s, adjustable in steps of 0.1s
  14. Output: RS232C serial port outputs measured and set data values
  15. Alarm indication: current overrun and frequency response overrun indicator light prompt
  16. Power supply: 220 V ± 10%, 50 Hz / 60 Hz AC mains power, power consumption < 10 W.
  17. Overall dimension: host (H) × W × D, mm):144 × four hundred and twenty × 300, sound source: F60 × 36 mm
  18. Weight: about 5 kg.
  19. Operating temperature range: 0 ℃ ~ 40

  • Product Detail
  • Features
  • After-sales services

The instrument adopts digital signal processing technology, and simultaneously measures and digitally displays the 1 kHz sensitivity (DB), low-frequency and high-frequency response (digital and bar graph), and working current of the electret microphone. The high-frequency and low-frequency test frequency can be set arbitrarily, and the qualified range can also be set. If it exceeds the limit, it will automatically alarm, with good stability and strong anti-interference ability. It is mainly used for measuring the sensitivity of electret microphone (microphone) on the production line, grading, and pairing. The digital interface output is suitable for automatic test and classification with an automatic test sorter. It is an updated product of the AWA6063 electret microphone tester.

  • FFT narrow-band spectrum analysis technology is adopted, with strong anti-interference ability;
  • the signal source adopts digital synthesis technology, and the output frequency of three frequency points can be Self-setting, good stable;
  • the qualified range can be set for each index, and the automatic alarm will be given when exceeding the limit;
  • with RS-232C digital interface output, suitable for automatic test classification.

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