
1.2.1 T-Slot transducer assembly and mount
Procedure
1. Slowly vent all line pressure on the 3410 Series Gas Ultrasonic Meter to atmosphere.
2. Disconnect transducer cable from the transducer holder.
3. Loosen the T-Slot transducer assembly with a 1 1/4 inch (32 mm) wrench or socket.
Carefully remove the T-Slot transducer assembly.
4. Place a label on the transducer assembly to marks its location. Port locations are
marked on the transducer cable as well as on cast meter housings.
5. Apply a small amount of Nickel antiseize compound (P/N 3-9960-134) to the
threads of the Hydrotest plug from Hydrotest kit and install it into the mount.
Required kit part numbers are listed below.
Model 3415 Quantity 1 x 1-360-01-220
Quantity 1 x 1-360-01-221
Model 3416 Quantity 1 x 1-360-01-220
Quantity 1 x 1-360-01-222
Model 3417 Quantity 2 x 1-360-01-220
6. Repeat Step 3 through Step 5 for the other transducer(s) being careful to note the
location of each transducer in the meter assembly.
7. Run the field hydrostatic test.
8. Reverse the steps above to reinstall the transducers into their appropriate ports.
Before reinstalling the transducer assemblies, ensure the transducer ports, mounts,
and transducer holders are clean and free of debris. Apply a small amount of Nickel
antiseize compound to the outer threads of the transducer holders before installing
them into the mounts.
1.2.2 T-200 transducer assembly
The T-200 transducer assembly has full-metal structure and can remain in place during
field hydrostatic pressure test.
Procedure
1. Leave T-200 transducers installed on the 3410 Series Gas Ultrasonic Meter while the
line is pressurized.
2. Run the field hydrostatic test.
1.3 Routine maintenance
Routine maintenance operations requires adherence to all applicable regulations and laws
and safety training for personnel to perform the maintenance operations. Review your
organization's best practices procedures before performing routine maintenance.
Maintenance and Troubleshooting manual Maintenance
00809-0200-3104 April 2022
Rosemount 3415, 3416 and 3417 7