Liquistation CSF48 Operation
Endress+Hauser 173
Other settings and manual cleaning
10.6.3 Mathematical functions
In addition to "real" process values which are delivered by analog inputs or physical sensors
connected to the device, you can also calculate a maximum of 6 "virtual" process values using
mathematical functions.
The "virtual" process values can be:
• Output via a current output or a fieldbus
• Used as a controlled variable
• Assigned as a measured variable to a limit contactor
• Used as a measured variable to trigger cleaning
• Displayed in user-defined measuring menus.
Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 to 4
Function Options Info
Start signal Options
•Bus signals
• Signals of digital or
analog inputs
Factory setting
None
In addition to cyclic cleaning, you can also use an input
signal to start event-controlled cleaning.
Choose the trigger for such a cleaning process here.
Interval programs and weekly programs are executed as
normal, i.e. conflicts can occur. Priority is given to the
cleaning program that was the first to be started.
Hold Options
•On
•Off
Factory setting
On
Decide whether there should be a hold during the
cleaning process. This hold affects the inputs to which
this cleaning process is assigned.
Start single Action Start an individual cleaning process with the selected
parameters.
If cyclical cleaning is enabled, there are times in which it
is not possible to manually start the process.
Manual mode Action You start the manual mode by acknowledging the
warning. You can now start each possible cleaning step
manually. If you want to return to cyclic cleaning, you
must set "Manual mode" to "Off".
StoporStop Failsafe Action End the cleaning process (cyclically or manually)
Output selection Goes to the "Outputs" menu
You can assign the cleaning program directly to one or
more outputs.
--> "Outputs" section
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