Before using a sound level meter to measure noise, the following points need to be noted:
1、 Please read the user manual carefully first to understand the usage method and precautions of the sound level meter.
2、 When installing a battery or external power supply, be sure to pay attention to the positive and negative poles of the battery and not connect them incorrectly. If the sound level meter is not used for a long time, the battery should be removed to avoid battery leakage and damage to the sound level meter.
3、 The microphone should be prevented from falling and cannot be disassembled. If not in use, please place it in a dry environment.
4、 The sound level meter should be avoided from being placed in damp, dirty, high-temperature, dusty, or containing chemical gases to avoid damage to the sound level meter.
5、 It is strictly prohibited to disassemble the sound level meter by oneself. If the sound level meter is not working properly, please contact the supplier for resolution.
Measurement method of sound level meter:
When measuring noise, the sound level meter should choose the correct gear based on the measured environmental noise. Hold both sides of the sound level meter with both hands flat, so that the microphone points towards the measured sound source, or
Use extension cables or rods to reduce the impact of sound level meter appearance and human body on noise measurement.
Calibration of sensitivity
To ensure the accuracy of measurement, the sound level meter must be calibrated before and after use.
How to calibrate it? Install the sound level calibrator on the microphone, turn on the calibration power, read the value, adjust the sensitivity potentiometer of the sound level meter, and complete the calibration.
Precautions for using sound level timing
