Casella CEL CEL-35X dBadge - Manual (Page 15)

Casella CEL-35X dBadge Users Handbook – Page 15
The windshield should be removed prior to calibration, refer to section
3.4.
Push the CEL-120/2 acoustic calibrator over the microphone as
shown in Figure 11. The calibrator should be pushed on without
twisting.
Figure 11
The CEL-35X dBadge will automatically recognise a 1kHz calibration
tone is present and display the screen shown in Figure 12.
Figure 12
Press the „R‟ key to confirm you wish to calibrate the unit, it will take
a few seconds to calibrate automatically to 114.0dB, during which time
a progress bar will be displayed as shown in Figure 13.
CALIBRATE ?
114.0 X