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Figure 4-16
Potential equalization with earthing electrodes
Cathodic protected piping
Special attention must be paid to systems with cathodic protection.
WARNING
Use in hazardous area!
Cathodic pipe protection is not allowed in hazardous areas
Figure 4-17
Cathodic protection
• Isolate the sensor from cathodic protected pipes using insulated bolts.
• Use bypass cable between the mating flanges
Note
Remote mounted sensor versions
If the above is not acceptable, remote mounted sensors can alternatively be connected as
follows:
• Connect coil current cable shield at sensor end via a 1.5 µF condensator
• Make sure that electrode cable shield is not connected at both ends
Installing/Mounting
4.4 Potential equalization
SITRANS FM MAG 3100
40
Operating Instructions, 12/2021, A5E03005599-AE