Products
 
 
THERMOCOUPLE EXTENSION & COMPENSATING CABLES
 
Thermocouple Extension wires are used to extend the temperature measured by a thermocouple to the instrumentation as to control & extract the information required from a process. Selecting the right type of wire & use of quality insulation materials ensures high accuracy results with maximum resistance to the application hazards. ‘Udey’ offers a variety of cable construction for special requirements of high temperature, abrasion, moisture & chemical resistance, shielded options for electrical interface & metal coverings (armour) for increased resistance to mechanical stress & abrasion.
 
STANDARD CONDUCTOR TYPES & LIMITS OF ERROR
 
Thermocouple
Composition

Limits  of

 Error

Type  + / - Extension wires Compensating wires
KX Chromel / Alumel ±2.2°C (0 to 200°C) ±3°C (0 to 100°C)
JX Fe / Constantan ±2.2°C (0 to 200°C) ±3°C (0 to 100°C)
TX Copper / Constantan ±1°C (0 to 100°C) ±3°C (0 to 100°C)
NX Nicrosil / Nisil ±2.2°C (0 to 200°C) ±3°C (0 to 100°C)
EX Chromel / Constantan ±2.2°C (0 to 200°C) ±3°C (0 to 100°C)
WX Iron / Constantan ±2.2°C (0 to 200°C) ±3°C (0 to 100°C)
VX Copper / Constantan ±2.2°C (0 to 100°C) ±3°C (0 to 100°C)
SX / RX PT - PTRH ± 0.057mV(0 to 200°C) ±3°C (0 to 100°C)
 
Better accuracy wires available on special request.
 
STANDARD CONDUCTOR SIZE other sizes available as per customer requirement.
 
Awg
Cross Sectional Area
Conductor ( mm )
Sq. mm
Solid
Stranded
20
0.50
1/0.81
7/0.30
18
0.82
1/1.02
7/0.38
16
1.30
1/1.29
7/0.49
  
INSULATION
 
Material
Operating temp
Dielectric Strength
P.T.F.E
260°C
>10 kV
Silicone Rubber
180°C
>5kV
Fibre Glass Braid
250°C
>2.5kV
XLPE
135°C
>5kV
PVC (HR/FRLS)
105°C
<2kV
 
COLOR CODING & EMF CALIBRATIONS TO: ANSI / DIN / IEC / BS / NF / ISS
 
LOOP RESISTANCE (MAX) FOR THERMOCOUPLE CONDUCTORS AT 20°C/KM.
 
Thermocouple KX VX / KX(A) TX EX JX SX
 20 AWG 1910 980 980 2312 1214 280
18 AWG 1212 624 624 1470 772 175
16 AWG 746 385 385 905 475 110