PROTMEX Sound Level Meter Digital Reader Measurement Range 30-130 dBA User Guide
Advertisement
Advertisement
PT6708 Calibration method
1 、 In the shutdown state, first press and hold the "H" and "MAX" keys at the same time, and then press the power button without letting go, until the LCD screen is lit up and release all hands to enter the debugging mode.
Figure 1-1 has entered debugging mode
2 、 Turn on the standard sound source, adjust the sound source to 1kHz,
94dB output.
Audio source output button. Press once and the screen lights up and the audio source is being output. Press again and the screen does not light up, and the audio source output is turned off.
Frequency switch button, press once to switch one output frequency. It can be switched only when the audio source is being output.
Main parameters of sound source
Figure 2-1 Detailed explanation of standard sound source button functions
Note: Press the source output key first, and then press the frequency switch key to switch the frequency.
3 、 Insert the microphone head of the product under test into the standard sound source and turn on the sound source output. There will be corresponding data on the LCD screen of the product to be tested.
After the data is stable, press the "H" key, the screen will flash three times to indicate that the calibration data has been saved. Then press the "A/C" key to switch to C-weighted calibration. After the data is stable, press the
"H" key to save the calibration data, and then shut down.

Public link updated
The public link to your chat has been updated.
Advertisement