3M DL, SE user manual Performing a calibration,  Calibrating, QC10/QC20

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Calibrate

Performing a calibration

calibrate during a pause, the new calibration results replace the previous Post- Calibration results without affecting the Pre-Calibration results. You will not see Post-Calibration results if a pre- calibration was performed but not followed by a Post-Calibration.

Performing a calibration

Before beginning your calibration, ensure the calibrator has sufficient battery power to perform the calibration. Also, you will want to insert the “cal adapter” into the mouth of the calibrator.

If the SoundPro has a windscreen, please remove.

Calibrating

1.Ensure the SoundPro is turned On and is either stopped or paused.

2.Attach the calibrator and cal adapter to the SoundPro. Set the calibrator to 1 KHz and 114 dB (if it is a selectable).

Microphone Place calibrator over microphone

Cal Adapter

Insert into cavity of

QC10/QC20

QC10/QC20

Select 1kHz and 114 dB

Figure 5-2: Attaching calibrator to SoundPro

3.From the Start screen, press the Cal softkey and the Cal screen will open.

4. Select Calibrate by pressing	Arrows (if not selected) and press Enter
to open the Pre-Cal screen.

5.Switch On the Calibrator.

Models SE and DL