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 3-28: Transmitter electronic enclosure security seals
A. Transmitter Electronics Enclosure end cap
B. Security wire seals
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.
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.
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
security latches with a 3mm Allen wrench and remove both end caps (see Figure
3-25).
3. Use a flat head screw driver and remove the terminal blocks from the Power Supply
board, the CPU Module and the Optional I/O Module (if installed). See Figure 3-23
for board locations and associated terminal blocks.
4. Use a Phillips head screw driver and remove the four Backplane board screws from
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 Maintenance and Troubleshooting manual
July 2020 3-9000-769
86 Gas Ultrasonic Flow Meters
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