5
4
Replacing the transducer assembly
Section 3: Meter maintenance
Maintenance and Troubleshooting Manual
January 2018
3-9000-772 Rev B
24.
Connect to the meter with Daniel MeterLink and run the Zero Flow Calibration Wizard
for the primary (_H1) transmitter. Then, collect and save a Maintenance log to show the
“as left” condition of the meter.
Or use AMS
TM
Device Manager or a HART® Field Communicator and select
Overview
|Zero Calibration|Start
menu or
Service Tools|Maintenance| Zero Calibration
|
Start.
Repeat this procedure for the co-located meter (_H2 Secondary) electronics.
25.
Close your application connection (Daniel MeterLink, AMS
TM
Device Manager or HART®
Field Communicator).
26.
Repack the thermal wrap into the transducer ports, between the shroud center
supports and the end shroud supports.
Important: Be sure you follow the
manufacturer’s safety instructions when handling the insulation.
27.
If you cannot reuse the insulation removed in
Step 2
, refer to the 3818 LNG Liquid
Ultrasonic Meter Insulation Assembly Procedure (P/N P-02054) to cut, mark and pack
the insulation.
Tip:
Make sure the transducer cables are pulled outside of the insulation and do not
contact the meter body. Position the insulation in staggered layers so there are no air
pockets or large un-insulated voids.
28.
Reinstall the shrouds (see
Section 3.5 “Installing the shrouds”
).
29.
This completes the transducer replacement procedure.