Electrical connection Liquisys M CLM223/253
18 Endress+Hauser
5 Electrical connection
L
WARNING
Device is live
Incorrect connection may result in injury or death.
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The electrical connection may be performed only by an electrical technician.
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The electrical technician must have read and understood these Operating Instructions
and must follow the instructions contained therein.
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Prior to commencing connection work, ensure that no voltage is present on any cable.
5.1 Wiring
L
WARNING
Risk of electric shock!
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At the supply point, the power supply must be isolated from dangerous live cables by
double or reinforced insulation in the case of devices with a 24 V power supply.
NOTICE
The device does not have a power switch
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The customer must provide a protected circuit breaker in the vicinity of the device.
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The circuit breaker must be a switch or power switch, and you must label it as the
circuit breaker for the device.
5.1.1 Wiring diagram
The wiring diagram shows the connections of a device equipped with all the options. The
connection of the sensors to the various measuring cables is explained in more detail in
the "Measuring cables and sensor connection" section.
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