3.7.1 Replace transducer cables
The meter body ports are identified by stamped or cast lettering adjacent to the
transducer port. Transducers for transmitter head 1 will be labeled 1-A1, 1-A2, etc. while
the transducer for transmitter head 2 will be labeled 2-A1, 2-A2, etc.
Procedure
1. Remove power to the meter.
2. Disconnect the transducer cable from the transformer retainer by removing the
retaining clips and pulling the cable plug straight out. Do not twist or rotate the
plug. (See Figure 3-2.)
3. Cut the tie wraps for the transducer cable you are replacing.
4. Remove the four bolts holding the Base Enclosure cover to the Transmitter
Electronics Enclosure using a 6 mm Allen wrench.
5. Lift the Transmitter Electronics Enclosure from the Base Enclosure. It may be
necessary to remove the ground lug wire and loosen the conduit connections prior
to removal.
6. Carefully prop the Transmitter Electronics Enclosure to the side.
7. Use a flat-blade screw driver and disconnect all the plugs from the Acquisition
module. (See Figure 3-15.)
8. Loosen the three screws that mount the Acquisition Module into the base enclosure
and remove the Acquisition module.
9. Loosen the thumb screws and remove the cable covers below the electronics
mounting bracket.
10. Unscrew the transducer cable to be replaced from the Acquisition module plug.
11. To avoid having to remove the electronics mounting bracket, it is recommended to
cut the plug off the end of the old transducer cable and attach the end of the new
transducer cable to it with tape or by wrapping the discrete wires together. The new
transducer cable can them be pulled up and through the electronics mounting
bracket.
12. Disconnect the new transducer cable from the old transducer cable. Finish
removing the old cable by pulling it through the base enclosure gasket. The new
cable can then be pushed through the base enclosure gasket.
13. Make sure the new transducer cable is routed properly and then cut off excess
length. Strip the individual wires 1/4 inch and install wire ferrules. Screw wires into
the Acquisition module plug.
14. Reinstall the Acquisition modules and securely tighten the plugs back to the
module.
15. Place the transmitter head back on the base enclosure and secure it with the four
bolts.
16. Reinstall the cable covers under the electronics bracket and secure by tightening
the thumb screws.
17. Reinstall the shroud covers over the transducers and wire seal if necessary.
18. Reattach the external ground wire to the ground lug and power up the meter.
Meter repairs Maintenance and Troubleshooting manual
August 2021 P/N 3-9000-791
68 Models 3415, 3416 and 3417 GUSM
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