ABB CoriolisMaster FCH400 Series Operating Instructions Manual page 142

142 CoriolisMaster FCB400, FCH400 CORIOLIS MASS FLOWMETER | OI/FCB400/FCH400-EN REV. E
... 12 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 38 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.
Component
Frontend board (FEB)
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.
Change from two to one column
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!
6. Pull the faulty frontend board out forwards.
7. Insert new frontend board.
8. Attach connector from the sensor cable harness.
9. Attach the SensorMemory.
Ordering number
10. Insert the LCD indicator and screw on / replace the cover.
3KXF002564U0100
11. Once the power supply is switched on, load the system
data from the SensorMemory.