Basic safety instructions Liquiline CM442/CM444/CM448
6 Endress+Hauser
2 Basic safety instructions
2.1 Requirements for personnel
• Installation, commissioning, operation and maintenance of the measuring system may be
carried out only by specially trained technical personnel.
• The technical personnel must be authorized by the plant operator to carry out the specified
activities.
• The electrical connection may be performed only by an electrical technician.
• The technical personnel must have read and understood these Operating Instructions and
must follow the instructions contained therein.
• Faults at the measuring point may only be rectified by authorized and specially trained
personnel.
Repairs not described in the Operating Instructions provided must be carried out only
directly at the manufacturer's site 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
• Other industrial applications
2.2.2 Hazardous environment in accordance with cCSAus Class I Div. 2
‣
Please pay attention to the control drawing and specified operating conditions in the
appendix of the Operating Instructions and follow the instructions.
2.2.3 Transmitter in non-explosion-hazardous environment with sensor
communication module 2DS Ex-i for sensors in explosion-hazardous
environment
The installation conditions in these Brief Operating Instructions and the corresponding XA
must be observed.
• ATEX & IECEx: XA02419C
• CSA: XA02420C
2.2.4 Non-designated use
Use of the device for any purpose other than that described, poses a threat to the safety of
people and of the entire measuring system and is therefore not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
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