Liquisys M CCM223/253 Operation options
Endress+Hauser 33
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PLUS key and MINUS key
In the Setup mode, the PLUS and MINUS keys have the following
functions:
• Selection of function groups.
Press the MINUS key to select the function groups in the order
given in the "System configuration" section.
• Configuration of parameters and numerical values
• Operation of the relays in manual mode
In the measuring mode, the following sequence of functions is
accessed by repeatedly pressing the PLUS key:
• Temperature displayed in °F
• Temperature is hidden
• pH measured value or ORP (only for EP version)
• pH sensor signal in mV (only for EP version)
• Sensor current of chlorine/chlorine dioxide sensor in nA
• Zero current of sensor CCS120
• Current input signal in %
• Current input signal in mA
• Return to basic settings
In the measuring mode, the following sequence of information is
displayed by repeatedly pressing the MINUS key:
• The current errors are displayed consecutively (max. 10).
• Once all the errors have been displayed, the standard
measurement display appears. In the function group F, an alarm
can be defined separately for each error code.
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REL key
In the manual mode, you can use the REL key to switch between the
relay and the manual start of cleaning.
In automatic mode, you can use the REL key to read out the switch-
on points (for limit contactor) or set points (for PID controller)
assigned to the relay in question.
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).
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AUTO key
Use the AUTO key to switch between automatic mode and manual
mode.
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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.
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