ALTANA LCM III - Manual (Page 42)

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Advanced Operations
After a lamp is replaced, the display of the total operating time is
reset to 0.
1. Press Lamp History in the System Checks menu.
2. Press Reset VIS and the Visible Lamp will be reset.
3. Press OK to return to System Checks.
6.1.6 Factory service
The Factory Service menu is password protected. This menu is not
intended for customer use.
6.1.7 Service time
In order to make sure a regular inspection, an automatic memory
reference for the service times can be entered. After switching the
instrument on this memory reference will be activated and indicated
at the appropriate time.
1. Press Service Time in the System Checks menu.
2. Select On and then Last Service to enter the date of the last
inspection.
3. Press OK to confirm.