Valmet Valmet MCA, Инструкция по установке и эксплуатации, Страница: 45 / 66

11. Replacing Components
11.1. Sensor Electronics
Removal (Fig. 1)
1. Disconnect the electricity by separating the sensor
cable from the connector at the edge of the base
plate.
2. Remove the electronics protective cover.
3. Disconnect the sensor cable and Pt-100 sensor
connectors from the electronics and bend them to
the side.
4. Loosen the three mounting screws and lift the
sensor electronics evenly out of its position by
pulling on the mounting screws.
NOTE: Sensor electronics is aligned into place by three
guide pins, which keep it in place even when the
mounting screws are loosened.
Installation:
1. Align the groove in the edge of the electronics with
the connector on the edge of the base plate. Move
the electronics and press gently until the guide
pins on the base plate are aligned with the holes
on the base of the electronics. Then press the
electronic evenly onto the base plate.
2. Screw in the three sensor electronics mounting
screws.
3. Connect the sensor cable and Pt-100 sensor con-
nectors to the electronics.
4. Place the sensor cover into position.
5. Connect the sensor cable to its connector at the
edge of the base plate.
6. If after the electricity is switched on MCA asks you
to choose calibration, choose as follows;
- TCU: if you did not replace the TCU.
- Default calibration: if you have replaced the TCU
as well.
Fig. 1. Removal diagram for sensor electronics.
Installation & Owner’s manual OUL00298 V2.3 EN 45 Valmet Mircowave Consistency Transmitter