Emerson Daniel 3410 Series Maintenance And Troubleshooting Manual page 75

Maintenance and Troubleshooting manual
DAN-20057317
15. Adjust the security wire, removing all slack and thread into the lead seal.
16. Cut wire ends to remove excess wire.
17. Apply power to the meter.
Power Supply Board replacement
Procedure
1. If replacing the Power Supply board remove power to the meter.
2. Disconnect the Transmitter Electronics Enclosure security seals, loosen the end cap
3. Use a flat head screw driver and remove the terminal blocks from the Power Supply
4. Use a Phillips head screw driver and remove the four Backplane board screws from
Model 3418 GUSM
a) If required, install the security seal wire into and through one of the two holes
in the end cap.
b) Choose holes that minimize counterclockwise rotation of the end cap when
the security wire is taut (maximum wire diameter.078 inch; 2.0 mm).
Figure 3-23: Transmitter electronics enclosure security seals
A. Transmitter Electronics Enclosure end cap
B. Security wire seals
This completes the I.S. Barrier Board replacement procedure.
If you encounter problems with this procedure, see 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).
board, the CPU Module and the Optional I/O Module (if installed). See
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 install the four flat-head screws into the enclosure
standoffs.
Meter repairs
August 2021
Figure
Figure 3-18
75