Casella CEL CEL-310 - Manual (Page 21)

A Calibration ok message is displayed when calibration has
been completed satisfactorily.
If the calibration cannot be completed sucessfully, the Reader
may display one of the following error messages:
Too high
Too low
Badge running.
Refer to Chapter 6: Troubleshooting for assistance.
4.2 Reset the Dose Badge
All dose badges to be used for the measurement task must have their
data stores reset to zero, before new measurements can be made.
Install the Dose Badge in the calibrator cavity with infrared
windows oriented as described in Section 4.1 (Figure 5).
1. If not already on, press to switch the Reader ON.
2. Wait for the status screen to be displayed, then press to
initiate the Reset sequence.
C-02 Calibrated to 114 dB
Calibrating . . . . ok
Reset
C-03
Reset Noise Badge
OK Cancel
Reset progress
C-04
Resetting . . . . ok
Operation
CEL-310 Dose Badge Users Handbook - Page 21