WARNING!
CUTTING HAZARD
Sharp edges may be present on the meter.
Wear appropriate personal protective equipment when working on the meter. Failure to
comply may cause serious injury.
3.4.1 Remove the transducer holder with the extractor tool
To replace transducer holder while under pressure, refer to Ultrasonic Split Clamp
Extractor Tool Operation Manual (Daniel P/N 3-9000-744).
Note
The extractor tool is used on Daniel Model 3414 Ultrasonic Flow Meters and is not applicable for use
with Daniel Model 3412 and Model 3411 Ultrasonic Flow Meters.
3.4.2 Remove the transducer holder without the extractor
tool
Daniel 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 Daniel MeterLink and collect
and save a 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.
3. Disconnect the transducer cable nut. Pull the chordset from the transducer
assembly.
Note
Do not twist the chordset as you disconnect it from the transducer assembly (see Figure 3-6).
4. If the meter is equipped with T-21 or T-22 transducers, remove the transducer
retainer using a 1 1/8” wrench and then disconnect and remove the transformer
(Figure 3-4).
T-21 transducers use W-01 transformers and T-22 transducers use W-02
transformers.
Meter repairs
Maintenance and Troubleshooting manual 57
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