FSM4000 ELECTROMAGNETIC FLOWMETER | OI/FSM4000-EN REV. E 27
Metal pipe with loose flanges
Flange design Wafer type design
Figure 24: Grounding connections
1. Solder the threaded nuts 2 M6 to the piping.
2. Insert M6×12 threads (3) in the flanges of the sensor.
3. Secure the ground straps
1 with nuts, spring washer and
washer in accordance with the figure, and connect to the
sensor with ground connection
3.
4. Use a copper wire (minimum 2.5 mm² (14 AWG)) to establish
a connection between the ground connection
3 and a
suited grounding point.
Non-metallic pipes or pipes with insulating liner
Figure 25: Grounding connections
For plastic piping or piping with an insulating liner, the
grounding of the measuring medium is provided by the
grounding plate as shown in the figure below or via grounding
electrodes that must be installed in the device (option). If
grounding electrodes are used, the grounding plate is not
necessary.
1. Install the sensor with grounding plate
1 in the piping.
2. Insert M6x12 threads
2 in the flange of the sensor.
3. Connect the terminal lug for the grounding plate
3 and
ground connection on the sensor
2 with the grounding
strap.
4. Use a copper wire (minimum 2.5 mm² (14 AWG)) to establish
a connection between the ground connection
2 and a good
grounding point.
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