Velp Scientifica
– UDK139 Operating Manual
10004762/B5
40
Select Cleaning of NaOH circuit from the
“Maintenance” menu, the display shows:
To return to the "Maintenance" menu press the Maintenance arrow top left.
The following information is displayed:
- Maintenance frequency. Maintenance is recommended every 500 analyses;
- Analyses from last maintenance;
- Date of last maintenance (DD-MM-YYYY).
Maintenance is recommended every 500 analyses (1000 analyses in case of
replacing the test tube connection). After 500 analyses from the last maintenance
(1000 analyses in case of replacing the test tube connection), when the instrument is
turned on a prompt recommends that maintenance be carried out. If the operator
chooses to defer maintenance, the prompt is repeated after an additional 20
analyses. In that case the maintenance interval is updated too (e.g. from 500 to
520).
Press
to reset the analysis counter and date.
Select Cleaning of filters and Replace Test tube connection and repeat the above
steps to check the maintenance status of each.
4.6.4. Service
Select Service from the "System" menu.
The following submenus are listed:
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