How to use the sound level meter:
Whether the sound level meter is used correctly or not directly affects the accuracy of the measurement results. Therefore, it is necessary to introduce the use of sound level meters.
1. Selection of sound level meter usage environment: Select a representative test site. The sound level meter should be away from the ground and away from the wall to reduce the additional influence of the reflected sound from the ground and the wall.
2. Weather conditions require that when there is no rain or snow, the sound level meter should keep the microphone diaphragm clean, and the wind hood must be added when the wind is above level 3 (to avoid wind noise interference), and the measurement should be stopped for strong winds above level 5.
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. You can use 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 ( Measure the sound level of the specified frequency band) various functions to measure.
7. Record data as needed, and can also connect to a printer or other computer terminals for automatic collection.
