Thermo Fisher Scientific Thermo Scientific Temp 16 - Manual (Page 20)

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15. CLEAR FIELD CALIBRATION
To clear user calibration:
1. Turn the thermometer off.
2. Hold the cal key down while pressing
the on/off key.
3. The measurement mode window
appears without the CAL indicator to
indicate that the user calibration has
been successfully cleared.
16. FIELD CALIBRATION UNLOCK
The calibration unlock feature enables field
calibration operation. To unlock field
calibration:
1. Turn the thermometer off.
2. Hold
the cal key and hold key down
simultaneously, then press the on/off
key.
3. The “CAL” indicator appears
momentarily with the version-model
window to indicate that the user-
calibration function has been unlocked
successfully (Figure 10).
CAL
Rtd
Figure 10: Successful field calibration unlock