ABB ProcessMaster FEM630 Operating Instructions Manual page 126

126
F EM63 0 | E L EC TR OM AG N E T I C FLOWM E T E R | O I/F E M6 3 0-EN RE V. A
. . .11 Repair
. . .Replacing the frontend board
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 22 to open and close the housing
safely.
In the event of a fault, the frontend board can be replaced on
flowmeters with an integral mount design.
Replace the frontend board as follows:
1 Switch off the power supply.
2
Unscrew / remove the cover.
3
Remove the LCD indicator. Ensure that the cable harness
is not damaged.
4 Pull the connector out of the sensor cable harness.
5 Pull out the SensorMemory
Note
The SensorMemory is assigned to the sensor. The
SensorMemory is therefore fastened to the sensor cable
harness with a cable retainer.
Ensure that the SensorMemory remains with the sensor and
cannot be lost!
Pull the faulty frontend board out forwards.
6 Insert new frontend board.
7 Attach connector from the sensor cable harness.
8
Attach the SensorMemory.
9
Insert the LCD indicator and screw on /replace the cover.
10 Once the power supply is switched on, load the system
data from the SensorMemory.