ABB FEX300 - Sensor Type Hygienicmaster; Ground for Devices with Protective Plates; Ground with Conductive PTFE Grounding Plate; Devices with Extended Diagnostic Functions

Mounting
36 FEX300, FEX500 OI/FEX300/FEX500-EN
4.7.5 Sensor type HygienicMaster
Ground the stainless steel model as shown in the figure. The measuring fluid is grounded via
the adapter (1) and an additional ground is not required.
Fig. 28
4.7.6 Ground for devices with protective plates
The protective plates are used to protect the edges of the liner in the measuring tube, e.g., for
abrasive fluids. In addition, they function as a grounding plate.
• For plastic or pipes with insulating lining, electrically connect the protective plate in the same
manner as a grounding plate.
4.7.7 Ground with conductive PTFE grounding plate
For devices with a meter size between DN 10 … 250, grounding plates made of conductive
PTFE are available. These are installed in a similar way to conventional grounding plates.
4.7.8 Devices with extended diagnostic functions
For devices with extended diagnostic functions different grounding conditions may be valid.
For further information read and observe chapter 8 “Extended diagnostic functions”.