Calibrating The Meter - RS Pro RS-660 Manuel D'instructions

Logging Personal Noise Dosimeter / EN
7-1-1 Error Messages at Power Up
If there are any error messages they will appear after the start-up screens:
Battery < 1 hr
Warning messages appear when there is less than 1 hours charge or memory
full. Press any key to return to the default screen or alternatively these error
messages will time-out after 30 seconds. Please either re-charge, download
and /or erase data as required before continuing with a new measurement run.

7-2 Calibrating the Meter

It is best practice (and often mandatory) to field calibrate each meter both before
and after use. Which will also allow the target calibration level to be set as shown
on the calibrator's own calibration certificate, nominally 94.0 dB, 114.0 dB or OFF
selecting by PC.
Note: The meter will not enter the calibration mode if a measurement run is taking
place. If a run is in progress, stop the run according to section 7-5.
The windscreen should be removed prior to calibration. Please refer to section 5-2.
Push the sound calibrator over the microphone as shown. The calibrator should be
pushed on without twisting until fully home and switched on.
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Memory
05/24/18 Version No. 00