OEM OPM223 Operating Instructions Manual page 26

Operation
26
REL key
In the manual mode, you can use the REL key to switch between
the relay and the manual start of cleaning.
In the automatic mode, you can use the REL key to read out the
REL 1
switch-on points (for limit contactor) or set points (for PID
controller) assigned to the relay in question.
REL 2
Press the PLUS key to jump to the settings of the next relay. Use
the REL key to get back to the display mode (automatic return after
30 s).
AUTO key
You can use the AUTO key to switch between automatic mode and
manual mode.
Escape function
If you press the PLUS and MINUS key simultaneously, you return
to the main menu or are taken to the end of calibration if
calibrating. If you press the PLUS and MINUS key again, you
return to the measuring mode.
Locking the keyboard
Press the PLUS and ENTER key for at least 3 s to lock the
keyboard against any unauthorised data entry. All the settings can
continue to be read.
The code prompt displays the code 9999.
Unlocking the keyboard
Press the CAL and MINUS key for at least 3 s to unlock the
keyboard.
The code prompt displays the code 0.
OPM223/253