001 Front Cover

Extension Wire - lnsulated

Richards Extension wire is used to complete the thermocouple circuit from the thermocouple element to the temperature instrument. The extension wire and thermocouple wire musf both be of the same calibration type lo maintain the accuracy of the thermocouple. The polarity of each set of wires must also be maintained during installation or errors will be introduced into the circuit' The RED wire is always the NEGATIVE leg of the extension wire. Extension wire is also color coded to help with identification and installation. See the extension wire color code table in this catalog. lf the wire will be subject to repeated flexing, a stranded wire should be used to prevent conductor breakage. To specify stranded conductors, add a S to the end of the part numbers listed below. For typical, non{lexing, ambient temperature, indoor use, a 20 gauge (1 .3mm) solid conductor with PVC insulation wire is an excel- lent choice. This wire is low cost and resistant to oils, chemicals, abrasion, moisture, and acids. Never install extension wire in the same conduit as power lines. This will cause interference and errors in the temperature readings. lt is a good practice to keep the extension wire at least 1 foot away from power lines to maintain a accurate thermocouple circuit. Thermocouple extension wire can be supplied on spools or coils. Wire orders will be spooled plus or minus 10% of the total quantity unless othenruise specified by the customer. lf you require spooled wire just specify the part number and the footage. The extension wire part numbers below, specify the wire gauge, type and insulation material. Example: 24KKX'GG l ruot"", {-Speciat limits can be specified by doubling the type tetter in the paft number.

/-NicXet vs. Nickel Moty thermocouples can use Type KX extension wire at room temperature. /-fype P (Ptatinet Il) thermocouples can use Type KX ertension wire at room temperature. /-fype B thermocouples can use ordinary copper wire for extension wire at room temperature. /-fype C (Tungsten, 57" Rhenium vs. Tungsten, 26% Rhenium) can use Type RSX wire at room temperature.

fype BX- Extension Wire

fype EX- Extension Wire

.20 x .13 .16 x .10 .09 x .06 .16 x.10

5.1 x 3.3 4.1 x2.5 2.3x1.5 4.1 x2.5

37.2 37.2 11 .5 18.6

25.0 25.0 7.7 12.5

220 400 400 220

104 204 204 104

Ployvinyl Plastic Teflon TFE (Fused Tape) Fibre Glass, lmpregnated Gflon TFE (Fused Tape)

Ployvinyl Plastic Teflon TFE (Fused Tape) Fibre Glass, lmpregnated Teflon TFE (Fused Tape)

16EX.PP 16EX.TT 20E-GG- 20EX.PP

Sol Sol So So

16 16 20 20

d d d d

and Red (Negative, Non-magnetic, Constantan) Brown, if a tracer - Black or White.

Outer jacket - Purple.

Non-magnetic, Nickel, 10% Chromium) *Thermocouple quality - Overall -

Type JX'Extension Wire

.22 x .15 .15 x .09 .16 x.10 .20 x.13 .16 x .10 09 x .06 16 x,10 19 x.11 17 x .17 12 x .07

5.6 x 3.8 3.8 x2.2 4.1 x2.5 5.1 x 3.3 4.1 x2.5

220 400 400 220 400 900 220 220 220

104 204 204 104 204 480 104 104 104 204

34.5

Ployvinyl Plastic

51 .3 26.6 31 .0 37.2 37.2 11 .5 18.6 20.8 23.8

Ployvinyl Plastic

14JX.PP

Solid Solid Solid Solid Solid Solid Solid

14 16 16 16 16 20 20 20 20

17 ,9 20.8 25.0 25.0 7.7 12.5 14.0 16.0

Fibre Glass, lmpregnated Fibre Glass, lmpregnated Ployvinyl Plastic Teflon TFE (Fused Tape) Fibre Glass, lmpregnated Ployvinyl Plastic Ployvinyl Plastic Ployvinyl Plastic, (twisted + drain wire) Teflon FEP (Extruded)

Fibre Glass, lmpregnated Fibre Glass, lmpregnated Ployvinyl Plastic Teflon TFE (Fused Tape) Fibre Glass, lmpregnated Ployvinyl Plastic Ployvinyl Plastic Ployvinyl Plastic, (twisted + drain wire) Teflon FEP (Extruded)

16JX.GG 16JX-GG.S 16JX.PP 16JX-TT

2.3 x 1.5 4.1 x2.5 4.7 x2,7 4.32 x 4.32

2OJ-GG- 2OJX.PP 2OJX.PP-S 2OJX.PP-S.TW-SD 20J-TT-ex*

Stranded Stranded

8X1

16.4

3.1

400

11 .0

20

Solid

Color Code - White (Positive, Magnetic, lron) and Red (Negative, Non-magnetic, Constantan) *Thermocouple quality - Overall - Erywn, if tracer - Black

Outer jacket - Black

or White.

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