C-21
Scanner
®
2000 microEFM Appendix C
16. Connect the main board to the keypad with the two #4-40 × 5/16” screws removed in step 12.
17. Reconnect the sensor ribbon cable to the J5 connector at the top of the main board, by inserting the ribbon
cable into the black clip and securing the latch on the clip to hold it tightly in place.
18. Reattach the eldbus interface board to the main board, being careful to align the pins on the back side of
the interface board with the two headers on the main board before snapping the interface board into place
and over the center standoff.
19. Reattach the white potted eldbus module to the eldbus interface board, being careful to align the pins
on the back side of the module with the headers on the interface board.
20. Secure the eldbus module with the two screws that were removed in step 8.
21. Reconnect all wiring to terminal blocks TB1, TB2 and TB3.
22. Reconnect the battery cable to connector J1 on the main board.
23. Reconnect the eldbus input cable to terminal block TB4 on the eldbus interface board.
24. Reattach the board assembly to the standoffs inside the enclosure with the two #4-40 × 7/8” screws re-
moved in step 2.
25. Recalibrate the Scanner 2000.
26. Replace the enclosure cover.
Important Do not overlook the need to recalibrate the Scanner 2000. Boards that are shipped inde-
pendently of a Scanner 2000 are not calibrated to compensate for atmospheric pressure;
therefore, a Scanner 2000 will not display accurate pressure readings until it is recalibrated.
Fieldbus Interface Board
Important Static electricity can damage a circuit board. Handle new boards only by their edges,
and use proper anti-static techniques (such as wearing anti-static wrist strap or touching
metal to establish an earth ground) prior to handling a board.
To replace the eldbus interface board, perform the following steps:
1. To access the eldbus interface board, perform steps 1 through 9 of the main board replacement procedure
on page C-17.
2. Remove the replacement eldbus interface board from it packaging and connect it to the main board,
being careful to align the pins on the back side of the interface board with the two headers on the main
board before snapping the interface board into place and over the center standoff.
3. Reattach the white potted eldbus module to the eldbus interface board, using the two screws that were
removed in step 8 of the main board replacement procedure.
4. Reconnect all wiring to terminal blocks TB1, TB2 and TB3.
5. Reconnect the battery cable to connector J1 on the main board.
6. Reconnect the eldbus input cable to terminal block TB4 on the eldbus interface board.
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