Liquiline CM442/CM444/CM448 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 CM44x 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:
• Water and wastewater
• Power stations
• Chemical industry
• Industrial wastewater treatment plants
2.2.2 Ex environment in accordance with FM/CSA Class I Div. 2 (CM442 only) improper
use
‣ Pay attention to the control drawing and the specified operating conditions in the appendix
to this manual and follow the instructions.
2.2.3 Non-designated use
Any other use than the one described here compromises the safety of persons and the entire
measuring system and is not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
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