Grounding Connections - Siemens SITRANS FC620 Operating Instructions Manual

Grounding connections

Be aware that improper earthing, false wiring and use of cable out of specification may
NOTICE
lead to instrument damage and/or disturbance of other sensitive electrical equipment due
to increased electromagnetic emissions/immunity.
Be aware that wrong input voltage may lead to disturbance of other sensitive electrical
NOTICE
equipment due to increased electromagnetic emissions.
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13.2 Grounding connections
Risk of injury from electrical shock due to inadequate grounding
WARNING
▶ Perform potential equalization at the grounding terminals provided for this purpose
The applicable national standards must be considered for installation.
Only sensors and transmitters with compatible order codes may be interconnected. If
these instructions are not observed, flawless function of the flow meter cannot be
guaranteed.
In case of cabling in pipes (Conduit), guide the pipe through the opening in the wiring
and use watertight gaskets to avoid that water runs in. Install the installation pipe at
an angle, as shown in the figure below. Install a drain valve in the bottom end of the
vertical pipe and regularly open that valve.
Unused cable entries must be closed using blind plugs.
Install cables hanging down to prevent water from flowing along the cable into the
flow meter.
The electrical connection between potential equalization system and grounding
connection must be safe, see Grounding connections [} 119].
Ensure that housing gaskets are positioned in the lining grooves and not damaged.
according to the figure "Grounding connections on transmitter and sensor".
Drain valve
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FC6x0
Wiring
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