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Emerson Process Management GmbH & Co. OHG 7-41
Instruction Manual
HASAxE-IM-HS
05/2006
7 Maintenance
7-4 Replacing the Electrochemical Sensor
7-4-4 Sensor Unit Disassembly
The sensor unit consists of a mounting support,
an electronics board and the sensor itself
(fig. 7-9).
The right side picture shows two screws fixing
the sensor block to the mounting support:
Loosen the screws and push the block with
attached electronics and sensor towards the
wider end of the slot to separate them from the
mounting support.
Now unplug the connector from the electronics
board and remove the sensor from the block.
Take the new sensor, remove it's plug, place it
into the sensor block and attach the connector
to the related strip P2 on the electronics board.
Fig. 7-10: Sensor Block Assembly
Fig. 7-9: Sensor Unit Assembly
1 Sensor
2 Electronics board
312 3 2
(unit turned 90 °)
4
3 Mounting support
4 Fixing screws
Sensors
worn-out
new