wtw DIQ/S 282, Operating Manual, Page: 76 / 186

Operation DIQ/S 28X
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Subsequently, perform the cleaning, maintenance or repair work (removal and
replacement).
When you have finished calibrating, cleaning, servicing or repairing the sensor,
switch off the maintenance condition manually (see section 4.8.3).
4.8.3 Switching off the maintenance condition
4 Using <  > , highlight the menu item, Switch maintenance condi-
tion on/off , and confirm with <OK> .
A window that informs you about the maintenance condition opens up.
5 Use <OK> to confirm Continue .
The selected sensor is in the maintenance condition. Linked outputs are
frozen.
6 Call up the measured value display with <M> .
The display of the sensor in the measured value display flashes.
1 Call up the measured value display with <M> .
2 Select the sensor you want to switch off the maintenance condition for
with
<  > .
The display of the sensor in the measured value display flashes.
3 Open the Display/Options menu with <OK> .
4 Using <

> , highlight the menu item, Switch maintenance condi-
tion on/off , and confirm with <OK> .
A window that informs you about the maintenance condition opens up.
5 Use <OK> to confirm Continue .
The maintenance condition of the selected sensor is switched off.
Linked outputs are released.
6 Call up the measured value display with <M> .
The display of the sensor in the measured value display does not flash.
If a power failure occurs, the outputs automatically are in the non-
operative condition (relays: open, current output: 0 A; see compo-
nent operating manual of the output module). After the end of the
power failure the outputs work as defined by the user again.
If a power failure occurs while an IQ sensor that is linked with an out-
put is in the maintenance condition, the current and relay outputs
work as defined by the user after the maintenance condition has
been switched off only (see section 4.8.3).