Siemens SITRANS F Operating Instructions Manual page 34

Electromagnetic flowmeters
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Connecting
5.1 General safety requirements
Terminal box
Before opening the terminal box check that:
● No explosion hazard exists
● All connection leads are potential free
Grounding
The mains protective earth wire must be connected to the PE terminal in accordance with the
diagram (class 1 power supply)
Mechanical counters
When mounting a mechanical counter to terminals 57 and 58 (active output), a 1000 µF
capacitor must be connected to terminals 56 and 58. Capacitor + is connected to terminal 56
and capacitor - to terminal 58.
Output cables
If long cables are used in electrically noisy environments, it is recommended to use screened
cables.
Electrode cables
Dotted connections are only to be made when using special electrode cables.
National requirements
Observe country-specific installation directives for field wiring.
34
WARNING
WARNING
WARNING
SITRANS MAG 1100/1100 F
Operating Instructions, 08/2018, A5E03433301-AD

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