128 FEP630, FEH630 ELECTROMAGNETIC FLOWMETER | OI/FEP630/FEH630-EN REV. D
… 11 Repair
… Replacing the frontend board
Remote mount design
G12169
1
3
4
5
2
1 Frontend board fixing screw
2 Terminals
3 Frontend board
4 Connections for flowmeter sensor
5 SensorMemory
Figure 80: Replacing the frontend board (flowmeter sensor)
Change from one to tw o columns
NOTICE
If the O-ring gasket is seated incorrectly or damaged, this
may have an adverse effect on the housing protection class.
Follow the instructions in Opening and closing the housing
on page 23 to open and close the housing safely.
The frontend board can be replaced in the event of a
malfunction.
Replace the frontend board as follows:
1. Switch off the power supply.
2. Unscrew / remove the cover.
3. Loosen the fixing screws (3×) at the frontend board.
4. Remove the faulty frontend board.
5. Pull the connector out of the sensor cable harness. Ensure
that the cable harness is not damaged.
6. Pull out the SensorMemory.
Note
The SensorMemory is assigned to the sensor. Ensure that the
SensorMemory remains with the sensor and cannot be lost!
7. Insert the SensorMemory into the new frontend board.
8. Connect the plug of the sensor cable harness.
9. Insert the new frontend board and secure it with the
fixing screws (3×).
10. After powering up the power supply, the transmitter
automatically replicates the system data from the
SensorMemory.
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