Metrohm 909 UV Digester - Manual (Page 31)

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4 Operation
909 UV Digester
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4.3 The keypad
Below you will find an overview of the operating unit's keypad and the
functions of the keys in the various dialog windows.
Figure 20 Keypad for the operating unit
4.3.1 The key functions
Key Main dialog Parameters Lamp info Lamp setup
[START
STOP] ￭ Start lamp radiat-
ing.
￭ Stop lamp radiat-
ing.
– – –
[SET] Open the Parameters
dialog. – – –
[QUIT] Acknowledge an error
message. Depending on the cur-
sor position:
￭ Discard a change.
￭ Leave the dialog.
Leave the dialog. Depending on the cur-
sor position:
￭ Discard a change.
￭ Leave the dialog.
[OK] Open the Lamp info
dialog. Depending on the cur-
sor position:
￭ Save a change and
switch to the next
parameter.
￭ Save a change and
leave the dialog.
Display the number of
cumulative operating
hours and times the
lamp has been
switched on (ignitions). Depending on the cur-
sor position:
￭ Save a change.
￭ Trigger the confir-
mation prompt for
resetting the coun-
ters.
￭ Reset the counters
to zero.