Siemens SITRANS FC620 Operating Instructions Manual page 138

FC6x0
Wiring
Risk of damage to the flow meter due to incorrect power supply
NOTICE
▶ The specified power supply must be observed (see Operating Instructions).
▶ The power-supply cable must be designed for the power supply used with a
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Risk of injury due to electrical shock
WARNING
▶ The transmitter must be assigned an external, fixed-mount power switch or automatic
▶ The power switch of automatic circuit breaker must be installed near the transmitter
1. Switch off power supply.
2. Using an Allen wrench (Size: 3.0), tighten the locking screw on the back cover in
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minimum diameter of 0.5 mm.
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Transmitter back cover
Power supply cable gland
circuit breaker in order to disconnect the transmitter from the power grid (compliant
with IEC60947-1 and IEC60947-3). Power switch or automatic circuit breaker must
disconnect all lines under current, but cannot disconnect the grounding conductor
under any circumstances.
and easily accessible. The "OFF" switch position must be clearly recognizable.
clockwise direction.
A5E52748375-AA, 2023/09
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Transmitter