Liquiline CM44P Operation
Endress+Hauser 117
Defining the cleaning cycle
Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4
Function Options Info
Cleaning cycle Selection
• Off
• Interval
• Weekly program
Factory setting
Weekly program
‣
Choose from a cleaning routine that is
restarted at set intervals and a user-
definable weekly program.
Cleaning interval
Cleaning cycle = Interval
0-00:01 to 07-00:00
(D-hh:mm)
Factory setting
1-00:00
The interval value can be between 1 minute and
7 days.
Example: You have set the value "1‐00:00". Each
day, the cleaning cycle starts at the same time
you started the first cleaning cycle.
Daily event times
Cleaning cycle = Weekly
program
00:00 to 23:59
(HH:MM)
1. Define up to 6 times (Event time 1 ... 6).
You can then choose from these for
each day of the week.
2. Choose individually for each day of the
week which of the 6 times should be used
for a cleaning routine on this particular
day.
This allows you to create weekly programs that
are perfectly adapted to suit your process.
Weekdays
Cleaning cycle = Weekly
program
Selection
Monday ... Sunday
Other settings and manual cleaning
Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4
Function Options Info
Start signal Selection
• None
• Fieldbus 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 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 Selection
• Off
• On
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.
Stop or Stop Failsafe Action End the cleaning process (cyclically or manually)
Outputs Goes to the menu Outputs → 86
Cleaning program
assignment view
Shows an overview of the cleaning processes
10.6.5 Mathematical functions
In addition to "real" process values, which are provided by connected physical sensors or
analog inputs, mathematical functions can be used to calculate a maximum of 8 "virtual"
process values.
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