Metrohm 909 UV Digester User Manual
Page 30

4.2 Dialog window overview
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22
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909 UV Digester
You can open the Lamp setup dialog by pressing and holding the [SET]
key while switching on the 909 UV Digester.
You have to edit the following parameters if you have inserted a new UV
lamp:
■
Reset the counters back to zero for the cumulative operating hours and
number of times the lamp has been switched on (Reset Counters).
■
Configure the number of operating hours for the new UV lamp until
the next replacement (Replace after).
Replace after
Maximum number of operating hours for the UV lamp until the next
replacement.
Input range
0 - 1000 h (Increment: 1)
Default value
750 h
We recommend replacing the UV lamp after 750 h
of operating time.
Reset counters
For resetting both counters for cumulative operating hours and the num-
ber of times the UV lamp has been switched on (ignitions) to 0.
Confirming with [OK] triggers the following confirmation prompt:
Selection
[OK] | [QUIT]
[OK]
Both counters are reset to 0.
[QUIT]
Both counters remain at their current values.
Caution
The counters cannot be reset during the ongoing service life of a UV
lamp currently in use.
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