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C.1.2 Splicing the Cable
1)
Cut the cable from the faulty sensor and strip the jacket back approximately 50 to 75
millimeters (two to three inches).
2)
The cable has four conductors and a drain wire (bare), as well as a barometer
equalization tube. The wire insulation should be stripped about 13 mm (1/2") in
preparation for crimping together with the wires from the new sensor.
3)
Strip the new sensor wires back the same way.
4)
Crimp the wires together using the special crimper and test each connection for
strength.
5)
Using the supplied union, splice the vent tube.
Follow the instructions in Appendix
D to ensure the Swagelok fittings are tightened properly!
6)
Take readings at the readout station to make sure the sensor and its thermistor are
reading properly.
7)
Place the cable in its epoxy splice kit and make the splice.
8)
Do the same for the tubing assembly.
C.2 Adding an Extension to a Sensor Assembly
The first step in this operation is to connect the supplied section of tubing to the reservoir. This
should be done with the liquid flowing from the reservoir in the same way that the operation is
done when connecting a sensor.
After connecting the extension to the reservoir, the splice to the existing tubing bundle and cable
should be made as in the connection for a replacement sensor. Be sure to remove the equalization
line from the reservoir during this operation and keep liquid in the reservoir at all times.
Remember that for both operations the prime concern is preventing air getting into the liquid
lines and making sure that all electrical connections are good before finishing the splices.
The splices should be allowed a couple of hours to cure before placing fill and compacting over
them.
