ALTANA LC 4 - Manual (Page 25)

BYK LC 4 Operation
25
Note
If no valid calibration can be accomplished, the Err3 error message appears
on the display. Measuring is not possible in this condition. Possible causes
and actions for error elimination can be found in chapter 6 W
HAT TO DO IF ....
6 Wait until the measured value is stable.
The unit of the measured value display stops flashing.
7 Return to the measuring mode with < g>.
The calibrated cell constant is used.