Switching to manual mode
The instrument is switched to the manual mode by pressing the Auto / Manual key.
In this mode, the relays and a wiper (if present on the sensor) can be switched on and
off manually with the “
+
” and “
–
” keys.
The relay status is shown on the second line of the display.
Press the “REL 1 / REL 2” key to switch among relay 1, relay 2 and the wiper control
function.
Note:
●
The manual mode must be enabled by entering setup code “22”.
●
The current operating mode setting is retained even in the event of a power failure.
●
The manual mode has precedence over an external hold request.
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Relay 1 can only be operated
manually even though it has
been configured as a limit
contactor.
Relay 1 defined
as limit contactor
If relay 2 is configured as a
spray contact, this is
indicated on the display by
“S.Cl” = spray cleaning.
Otherwise the display is the
same as for relay 1.
If a sensor with a wiper is
connected, the wiper can be
operated manually.
Relay 2 defined
as spray contact
Wiper control
Fig. 6.5
Manual relay and wiper operation
Operation
liquisys CUM 252
24
Hauser
