Liquistation CSF48 Operation
Endress+Hauser 171
The pneumatic retractable assembly, e.g. CPA875, is activated by compressed air via a two-way
valve. As a result, the assembly assumes either the position 0 ("Measure" - sensor in medium) or
position 1 ("Service" - sensor in rinse chamber). Media such as water, acids or bases are supplied
via valves or pumps. Here there are two states: 0 (= "off" or "closed") and 1 (= "on" or "open").
Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4/Chemoclean Plus/ChemoCleanPlus setup
Function Options Info
Cleaning steps setup Table to create a time
program
You define a maximum of 30 program steps which
should be performed one after the other. For each step
enter the duration [s] and the state (0="off", 1="on") of
each relay or output. You can specify the number and
name of the outputs further down in the menu.
See below for program examples.
Failsafe step setup Table view In the table specify the states that the relays or outputs
should assume in the event of an error.
Limit contacts 0 ... 2 Select the number of digital input signals (e.g. from limit
position switches of the retractable assembly).
Limit contact 1 ... 2 Options
• Binary inputs
• Fieldbus signals
Define the signal source for each limit position switch.
Outputs 0 ... 4 Select the number of outputs that actuators, such as
valves or pumps, should activate.
Output label 1 ... 4 Text You can assign a meaningful name to each output, e.g.
"assembly", "acid", "base" etc.
Sample program: regular cleaning with acid and base
Limit switch Duration
[s]
Assembly Water Acid Base
ES1 0 (Assembly in "Measure" position)10000
ES1 1 (Assembly in "Service" position)51000
ES1 1 101100
ES1 1 21110
ES1 1 101100
ES1 1 21101
ES1 1 101100
ES1 1 21000
ES1 0 50000
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