WA-2
Acoustic indicator
The WA-2 acoustic indicator is used for the visualisation of the noise level in the protected area, e.g. factory halls, larger office rooms or public spaces, etc. It informs the worker on the necessity of using the hearing protectors.
Good visibility
Owing to its large size, it is clearly visible from a distance. The instrument indicates the momentary values of the noise level in dB.
Reliability of measurement
The automatic calibration is conducted with the use of the standard acoustic calibrator with the noise level of 94 dB. It is possible to correct the result when the instrument is installed on the wall.
Psychological influence on employees
The possibility of seeing what you hear is psychologically significant. The green zone indicates that you can work safely, efficiently and with no need to use any personal protection equipment. The yellow zone signals that the noise level exceeds the so-called action limit, so a worker is entitled to use optionally personal hearing protectors. The noise level in the red zone informs on the obligation of wearing the protectors at work.
Technical data
- Measurement microphone:
- 1/2 "prepolarized
- Measurement range LAF:
- 60 - 120 dBA
- Frequency weighting:
- A
- Time weighting:
- Fast
- Indicator:
- LED bar
- Temperature range:
- 10ºC - 30ºC
- Power supply:
- 12V, 600mA
- Dimensions (without microphone):
- 75 x 30 x 690 mm