The specific operation steps of the noise meter
Whether the noise meter is used correctly or not directly affects the accuracy of the measurement results. Therefore, it is necessary to introduce the use of noise meters.
1. Selection of the environment where the noise meter is used: Select a representative test site. The sound level meter should be left off the ground and away from the wall to reduce the additional influence of the reflected sound from the ground and wall.
2. Weather conditions require that when there is no rain or snow, the noise 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 noise meter, take out the noise meter, and put on the sensor.
4. Put the noise meter in the measurement state, check the battery, and then calibrate the noise 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 fixed 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.
