Wiring
Quick Reference Instruction Manual for Spare
Transmitter replacement
IM01U10A01-00EN-R, 1
st
edition, 2019-12-09
49 / 76
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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.
Drain valve
Fig. 21:
Installation of the installation pipe
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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.
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The electrical connection between potential equalization system and grounding
connection must be safe, see Grounding connections and sensor circuits.
▶
Ensure that housing gaskets are positioned in the lining grooves and not damaged.
7.4.2 Grounding connections
WARNING
Risk of injury from electrical shock due to inadequate grounding
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Perform potential equalization at the grounding terminals provided for this purpose
according to the figure “Grounding connections on transmitter and sensor”.
3
2
1
Fig. 22:
Grounding connections on transmitter and sensor
1
Grounding screw in transmitter terminal box for grounding conductor
2
Grounding terminal on transmitter for potential equalization
3
Grounding terminal on sensor for potential equalization
