Hach-Lange DR 2800 eco - Manual (Page 104)

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Advanced Operations
6.6.4 Output Checks
If a printer is connected a test printing of the current screen will be
printed.
6.6.5 Lamp History
The menu Lamp History provides the following information:
• The amount of time that the lamp has been on (Hours)
After a lamp change, the display of the total operating time is reset
to 0.
1. Press Reset VIS and the Visible Lamp will be reset.
A system check is carried out. The duration of the check is
6 minutes.
2. Press OK to return to ”System Checks“.
6.6.5.1 Factory Service
The use of Factory Service menu requires a code.
Note: This menu is not intended for customer use.