Emerson Rosemount 3410 Series Maintenance And Troubleshooting Manual page 46

Meter repairs
December 2023
WARNING
Contents may be hazardous.
The meter must be fully depressurized and drained before attempting to remove the
transducer holder of T-Slot transducer assembly or the T-200 transducer assembly. If gas
or fluid begins to leak from the transducer holder of T-Slot transducer assembly or T-200
transducer stalk assembly, stop immediately and reinstall the transducer holder or T-200
stalk assembly.
Failure to comply could cause serious injury or equipment damage.
A. Transducer holder
WARNING
Cutting hazard
Sharp edges may be present on the transducer retaining ring.
Wear appropriate eye protection equipment when removing or installing the transducer
retaining ring.
Failure to comply could cause serious injury.
3.3.1 Remove the T-Slot transducer holder
Rosemount 3410 Series Ultrasonic Gas Flow Meters utilize transducer holders that contain
the transducer assemblies and act as the pressure barrier between the transducers and
the fluid.
Under normal maintenance, such as transducer replacement, the transducer holders do
not need to be removed. If it is necessary to remove the transducer holders, the following
steps detail how to safely remove and reinstall them. Before removing and installing
the transducer holder, connect to the meter using MeterLink
Maintenance Log.
Procedure
1. Blow the line down according to the site standard operating procedures.
2. Ensure that the line pressure is down to atmospheric pressure prior to disassembly.
46
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