kajaaniMCA
i
– Installation, Operating & Service - 11.7 - W4610201 V2.5 EN
Fig. 11.4. Replacing the Pt-100 sensor.
11.C.5. Replacing a Pt-100 temperature sensor in
MCAi-FT
NOTE: The process pipeline must be empty when the
temperature sensor is replaced!
1. Switch operating power off.
2. Remove the sensor cover assembly.
3. Remove the sensor electronics (see section 11.C.1).
4. Disconnect the antenna cables (see section 11.C.2).
5. Disconnect the current signal cables and Display
Unit cable from the bottom plate.
6. Carefully detach the Pt-100 wire from the groove
on the bottom plate.
7. Detach the bottom plate assembly from the sensor
body (4 outermost hex socket screws).
8. Push the Pt-100 through the bottom plate assembly.
9. Detach the defective Pt-100 assembly from the sen-
sor body.
10. Reassemble the sensor in reverse order.
NOTE: Make sure to push the Pt-100 wire into the groove
on the bottom plate – this protects the wire from being
squeezed between the Electronics Unit and bottom plate!
Hex socket screws
Bottom plate
groove on
bottom plate
PT-100 wire
PT-100 assembly
Sealing
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