Emerson Daniel 3410 Series Maintenance And Troubleshooting Manual page 73

Maintenance and Troubleshooting manual
DAN-20057317
12. Reinstall the terminal blocks on the CPU Module, Optional I/O Module (if installed),
13. Recheck the connections, wiring and switch settings before replacing the end caps.
14. If replacing other electronics, continue with the following sections before replacing
15. If you are not replacing other electronics, replace the end caps, security latches,
16. Adjust the security wire, removing all slack and thread into the lead seal.
17. Cut wire ends to remove excess wire.
18. Apply power to the meter.
I.S. Barrier Board replacement
Procedure
1. If replacing the I.S. Barrier board, remove power to the meter.
2. Disconnect the Transmitter Electronics Enclosure security seals, loosen the end cap
3. Use a 3 mm flat head screw driver and remove the terminal blocks from the Power
4. Use a Phillips head screw driver and remove the four Backplane board screws from
5. Pull the Backplane board out of the enclosure. This disconnects the I.S. Barrier
Model 3418 GUSM
and the Power Supply board using a 3 mm flat head screw driver.
NOTICE
Ensure the terminal blocks are aligned with the Guide Plate openings.
the end caps and sealing the enclosure.
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; 2.0 mm) (see
This completes the Backplane Board replacement procedure.
If you encounter problems with this procedure, see the Flow Lifecycle Services for
Daniel products contact information on the back cover of this manual.
security latches with a 3mm Allen wrench and remove both end caps (see
3-23).
Supply board, the CPU Module and the Optional I/O Module (if installed). See
3-18 for board locations and associated terminal blocks.
the enclosure standoffs. If the Local Display Module is installed on the Backplane,
use a flat blade screw driver and remove the four flat-head screws from the
standoffs.
Board. Lay the Backplane board down with the Acquisition Cable still attached (the
Power Supply board may remain attached to the Backplane when you remove it
from the enclosure).
Figure 3-20).
Meter repairs
August 2021
Figure
Figure
73