Geokon 4500HT, Instruction Manual, Page: 23 / 26

17
APPENDIX B. 4500HT 4 MM TO 4 MM CABLE SPLICE
If this splice will be subjected to high temperatures, all permanent pieces and materials utilized
in the splice need to be rated for the anticipated temperature.
B.1 Tools and Supplies
High temperature solder
High temperature heat shrink
Pipe cutter able to cut 4 mm (0.16") dimeter stainless steel
Torch
Soldering iron
Wire cutters/strippers
Vice grip
5 mm (13/16") Wrench
23 mm (7/8") Wrench
(2 ea.) 12 mm (1/2") Wrenches
B.2 Procedure
1)
Separate the two parts of the 4 mm to 4 mm splice via the 13 mm (1/2") Swagelok using the
5 mm (13/16") and 23 mm (7/8") wrench.
2)
Slide one piece over a length of cable to be spliced and the other piece over the other length
of cable. Make sure the orientation and order of the ferrules in the 4 mm and 13 mm (1/2")
Swageloks is correct.
3)
Use the pipe cutter to score the tubing approximately 25 mm (1") from the ends of each
cable. Do NOT cut through the stainless steel casing.
4) Use the vice grips to work that 25 mm (1") piece back and forth until it breaks from the main
cable line. Discard this piece and ensure there are no nicks in the sheathing of the internal
signal wires.
5)
Strip the jacket off each of the four signal wires approximately 3 mm to 6 mm (0.12" to
0.24") on both cables to be spliced.
6)
Pre-tin the exposed ends with the high temp solder. For Geokon solder a temperature of
approximately 415 °C is recommended. NOTE: High temperature solder contains lead (Pb).
7)
Slide a 12 mm (0.5") length piece of heat shrink on each of the four signal wires on only one
of the cables.
8)
Overlap the pre-tinned parts of the corresponding signal wires from each cable and apply
enough heat to melt the solder and adhere the wires together.
9)
Position the high temperature heat shrink so that it is centered on each of the solder joints
and, using a torch, shrink the heat shrink until it is securely bonded with the signal wires.