Connecting; Basic Safety Notes - Siemens SITRANS L Operating Instructions Manual

Connecting

5.1

Basic safety notes

Unsuitable cables, cable glands and/or plugs
Risk of explosion in hazardous areas.
• Use only cable glands/plugs that comply with the requirements for the relevant type of
• Close unused cable inlets for the electrical connections.
• When replacing cable glands use only cable glands of the same type.
• After installation check that the cables are seated firmly.
Missing PE/ground connection
Risk of electric shock.
Depending on the device version, connect the power supply as follows:
• Power plug: Ensure that the used socket has a PE/ground conductor connection. Check
• Connecting terminals: Connect the terminals according to the terminal connection
Incorrect connection to power source
Risk to personnel, system and environment can result from improper power connection.
• The DC input terminals shall be supplied from a source providing electrical isolation
• All field wiring must have insulation suitable for rated voltages.
SITRANS LR200 with PROFIBUS PA
Operating Instructions, 07/2021, A5E32337680-AF
WARNING
protection.
WARNING
that the PE/ground conductor connection of the socket and power plug match each
other.
diagram. First connect the PE/ground conductor.
WARNING
between the input and output, in order to meet the applicable safety requirements of
IEC 61010-1. For example, Class 2 or Limited Energy Source.
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