Liquiline CM442/CM444/CM448 Operation
Endress+Hauser 85
CM44x as cleaning master
CM44x as "cleaning master"
1. An external trigger actuates a cleaning at the master. A cleaning unit is connected over a
relay or a binary output, for example.
2. The cleaning trigger is transferred to another device via a binary output. This does not have
its own connected cleaning unit, but its sensors are installed in the medium affected by
cleaning the master and are set to hold by the trigger.
3. The trigger is transferred via an additional binary output to another device, whose
connected sensors have their own cleaning units. The signal can be used to simultaneously
activate a self-cleaning with the master.
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Fig. 85: Example of a central cleaning control
1 External cleaning trigger at the binary input
2 Transferring the external hold over binary output to other measuring devices without connected cleaning functions
3 Transferring the cleaning trigger over a binary output to other self-cleaning measuring points
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