Specific procedures for the operation of the noise meter
Whether a 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 meter.
1, the choice of environment for the use of noise meter: choose a representative test site, the sound level meter should be off the ground, away from the wall, in order to reduce the additional impact of the ground and the wall of reflected sound.
2,Weather conditions require that the noise meter should keep the microphone diaphragm clean during the time without rain or snow, the wind must be added to the wind cover above three levels (to avoid wind noise interference), and measurements should be stopped for gusts of wind above five levels.
3,Open the carrying case of the noise meter, take out the noise meter and put on the sensor.
4,Place the noise meter in the measurement state, test the battery, and then calibrate the noise meter.
5,Contrast the table (general common environmental sound level size reference), adjust the measuring range.
6,Below you can use the fast (measuring the instantaneous value of the environment with a large change in sound pressure level), slow (measuring the average value in the environment with a small change in sound pressure level), pulse (measuring the impulse sound source), filter (measuring the sound level of the specified frequency band) various functions for measurement.
7, according to the need to record data, but also can be connected to a printer or other computer terminals for automatic collection. Tidy up the equipment and put it back to the designated place.
