IM-P505-02-US Issue 1
83
UTM20 Series Ultrasonic Transit-time Flowmeters
Fig. 51 Replacing an AC module
Fig. 52
Replacing the Communication or Dry Contact Board
12.2 Replacing the Communication or Dry Contact Board
1. Turn off the power.
2. Open the enclosure.
3. Disconnect the wires from the communication board.
4. Remove (2) M3 pan head phillips screws that secure the cover over the communication board.
5. Remove the cover.
6. Remove the remaining (2) M3 pan head phillips screws that secure the communications board.
7. Lift the communications board straight out to unplug from the main board.
Installation is in reverse order, noting the following. To
install a new communications board, align the pins with the
header on the main board and gently press straight down.
Do not misalign the pins. Do not use excessive force.
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