Multi-function noise meter features and application introduction
Multi-function noise meter uses patented digital detector technology with wide level linearity range and no need to switch ranges during measurement.
Modular design, including integral sound level meter, personal sound exposure meter, noise statistics analyzer and other functions.
External micro-printer, can print the measurement results on site.
Optional GPS positioning module, external GSM wireless data transmission module.
Multi-function noise meter features:
(1) 130dB level linear range, no need to switch range
2）Large capacity storage
3）Operating temperature range: -10℃～+50℃.
4）Real-time measurement and display of measured values
5) Simple operation interface, more convenient to use
6）Saving power consumption, 4 LR6 alkaline batteries can work continuously for more than 40 hours.
Multi-function noise meter use:
Suitable for environmental protection, labor health, industrial enterprises, scientific research and teaching and other fields, for environmental noise measurement, machinery and equipment noise measurement, airport noise measurement, sound power level measurement and building acoustics measurement.
Noise meter classification
1, from the measurement object, can be divided into environmental noise (sound field) characteristics of the measurement and the measurement of sound source characteristics.
2, from the sound source or sound field time characteristics, can be divided into steady state noise measurement and non-steady state noise measurement. The non-stationary noise can be divided into periodic change noise, irregular change noise and impulse sound.
3、From the frequency characteristics of the sound source or sound field, it can be divided into broadband noise, narrowband noise and noise containing prominent pure tone components.
4、From the accuracy of measurement requirements, can be divided into precision measurement, engineering measurement and noise census.
Noise meter is also called (noise meter, sound level meter) is the most basic instrument in noise measurement. Sound level meter generally consists of condenser microphone, preamplifier, attenuator, amplifier, frequency meter network, and RMS indication meter head.
