Siemens SITRANS F M MAG 5000 Manual page 40

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Note
Terminals 81 and 84 are only to be connected if special electrode cable with double
screening is used, e.g. when empty pipe function or long cables are used.
Mains supply
Mains supply 115 ... 230 V AC from building installation Class II.
Note
For DC installations it is recommend to install an under voltage relay or protection circuit in
the application where there is a risk of low power supply below the specifications for more
than 10 minutes.
WARNING
Grounding
Connect mains protective earth wire to PE terminal in accordance with diagram (due to
class 1 power supply).
Mechanical counter
Connect a 1000 µF capacitor (capacitor+ to terminal 56 and capacitor- to terminal 58) if a
mechanical counter is connected to terminals 57 and 58 (active output).
Output cables
Use screened cables if long cables are used in noisy environments.
Digital output
If internal resistance of a load exceeds 10 kΩ, connect an external 10 kΩ load resistor in
parallel to this load.
WARNING
Intrinsically safe terminals
Always ensure that distance between cables/wires is minimum 50 mm in order to avoid that
wires/terminals of intrinsically safe circuits get into contact with wires of other cables.
Fasten cables/wires in a way that they cannot get into contact with each other, not even in
case of an error. Keep wire ends as short as possible.
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Connecting
5.1 Electrical connection
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