ALTANA LC 4 - Manual (Page 34)

Operation BYK LC 4
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4.9.3 Erasing measured data from the memory
To erase all datasets proceed as follows:
5 If necessary, display further elements of the dataset (ID number,
date, time, temperature) with <
ß_> [element of the measurement
dataset].
6 Switch to the measuring mode with < E>.
1 Display the memory with < M_>.
The W status indicator appears on the display.
The measured value that was saved last is displayed.
2 Erase the entire memory with < D>.
A security prompt appears.
3 Confirm the deletion with < g>.
After the deletion, NO DATA appears on the display.
4 Switch to the measuring mode with < E>.