Liquiline CM442R/CM444R/CM448R Basic safety instructions
Endress+Hauser 7
2 Basic safety instructions
2.1 Requirements for personnel
‣ Installation, commissioning, operation and maintenance of the measuring system must only
be carried out by specially trained technical personnel.
‣ The technical personnel must be authorized for the specified activities by the system
operator.
‣ Electrical connection must only be carried out by a certified electrician.
‣ The technical personnel must have read and understood these Operating Instructions and
must adhere to them.
‣ Faults at the measuring point may only be rectified by authorized and specially trained
personnel.
Repairs that are not described in these Operating Instructions must only be carried out
directly at the manufacturer or by the service organization.
2.2 Designated use
2.2.1 Non-hazardous atmosphere
Liquiline CM44xR is a multichannel controller for connecting digital sensors with Memosens
technology in non-hazardous environments.
The device is designed for use in the following applications:
• Food and beverages
• Life science
• Water and wastewater
• Chemical industry
2.2.2 Hazardous environment as per cETLus NI Cl. I, Div. 2 (CM444R and CM448R only)
‣ Pay attention to the control drawing and the specified operating conditions in the appendix
to the Operating Instructions and follow the instructions.
‣ The device must be installed in a housing or control cabinet that may be accessed only by
means of a tool or key.
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