Connecting
5.1 General safety requirements
SITRANS F M MAG 3100
34 Operating Instructions, 06/2010, A5E03005599-01
Hazardous area applications
Special requirements apply to the location and interconnection of sensor and transmitter.
See "Installation in hazardous area (Page 11)"
WARNING
Terminal box
Before opening the terminal box check that:
No explosion hazard exists
All connection leads are potential free
WARNING
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 57 (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 noisy environments, it is recommended to use screened cables.
Electrode cables
Dotted connections are only to be made when using special electrode cables.
WARNING
National installation code
Observe country specific installation directives for field wiring.
Cable specifications
● Only use cables with at least the same degree of protection as the sensor to install the
sensor.
● The line length from the cable gland to the terminals must be kept as short as possible.
Line loops in the terminal box must be avoided.
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