Operation of the sound level meter
The operation of the sound level meter is as follows:
1. Selection of sound level meter usage environment: Select a representative test site. The sound level meter should be left off the ground and away from the wall to reduce the additional impact of reflected sound from the ground and wall.
2. Weather conditions require that when there is no rain or snow, the sound level meter should keep the microphone diaphragm clean. The wind hood must be added when the wind is above level 3 (to avoid wind noise interference), and the measurement of strong winds above level 5 should be stopped.
3. Open the carrying case of the sound level meter, take out the sound level meter, and put on the sensor.
4. Put the sound level meter in A state, check the battery, and then calibrate the sound level meter.
5. The comparison table (generally common ambient sound level reference), adjust the measurement range.
6. The following can be used: fast (measure the instantaneous value of the environment where the sound pressure level changes greatly), slow (measure the average value in the environment where the sound pressure level changes little), pulse (measure the pulse sound source), filter ( Measuring the sound level of a fixed frequency band) various functions are measured.
7. Record data as needed, and can also connect to a printer or other computer terminals for automatic collection. Organize equipment and put it back in the designated place.
