40
Replace Backplane, I.S. Barrier or Power Supply board
Section 3: Meter maintenance
Reference, Installation and Operation Manual
December 2017
3-9000-764 Rev F
8.
Remove the Power Supply (if it was not removed with the Backplane board) and I.S.
Barrier boards from the enclosure. The I.S. Barrier Board has a notched tab that secures
the board to the Guide Plate.
9.
Attach the Acquisition Cable terminal block to the new Backplane Board and plug the
Power Supply Board and I.S. Barrier board into the Backplane board.
10.
Insert the Backplane (with the Power Supply and I.S. Barrier Boards attached to the
Backplane) into the enclosure.
11.
Fully seat the CPU Module and Optional I/O Module onto the Backplane board.
12.
Install the four Phillips head screws to secure the Backplane to the enclosure standoffs.
13.
Reinstall the terminal blocks on the CPU Module, Optional I/O Module, and the Power
Supply board using a 3 mm flat head screw driver.
14.
Recheck the connections, wiring and switch settings before replacing the end caps.
15.
If replacing other electronics, continue with the following sections before replacing the
end caps and sealing the enclosure.
16.
If you are not replacing other electronics, replace the end caps, security latches, reseal
the meter and apply power. If required, install the security seal wire into and through
one of the two holes in the end cap. Choose holes that minimize counterclockwise
rotation of the end cap when the security wire is taut (maximum wire diameter.078
inch; 2.0mm) (
17.
Adjust the security wire, removing all slack and thread into the lead seal.
18.
Cut wire ends to remove excess wire.
19.
Apply power to the meter.
20.
This completes the Backplane Board replacement procedure.
21.
If you encounter problems with this procedure, see the Daniel Customer Service
contact information on the back cover of this manual.
Make sure the terminal blocks are aligned with the Guide Plate openings.
