Thermocouple and Compensating Cables

A thermocouple is a temperature measuring device consisting of two conductors of dissimilar metals or alloys that are connected only at the ends. When the ends are at different temperatures a small voltage is produced in the wire that can be related directly to the temperature difference between the ends. If the temperature at one end is known, the temperature at the other end can be determined.

Calibration Type

  • TYPEJ (Iron vs Constantan)
  • TYPEK (CHROMEL vs ALUMEL )
  • TYPET (Copper vs Constantan)
  • TYPEE (CHROMEL vs Constantan)

COLOR CODE & INITIAL CALIBRATION TOLERANCES FOR THERMOCOUPLE WIRE :




Thermocouple Type ANSI Color Code Initial Calibration Tolerances
Wire Alloys Calibration +/- Conductor Overall Temperature Range Standard. Limits Special Limits
Iron(+) vs. Constantan 1 TM(-) J White/Red Brown 0°C to + 285°C
285°C to +750°C
±2.2°C
±.75%
1.1°C
±4%
Chromel TM(+) vs. Alumerl TM(-) K Yellow / red Brown -20°C to + 110°C
-110°C to 0°C
+285°C to +1250°C
±2%
±2.2°%C
±2.2°C to ±.75%
±1.1°C%
±.4%
Copper(+) vs. Constantan TM .(-) T Blue/Red Brown -200°C to -65°C
-65°C to +130°C
130°C to +230°C
±1.5°C
±1°C
±.75%
±.8°C
±.5%
±.4%
Chromel(+) vs. Constantan TM .(-) E Purple/Red Brown -200°C to -170°C
-170°C to +250°C
250°C to +340°C
340°C to +900°C
±1°C
±1.7°C
±1.7%
±.5%
±1°C
±1°C%
±.4%
±.4%

Specification :




Condwtor Type J. K. T and E
Cote Insulation PTEE Fibreglass. Asbestos. PVC Ceramic. SS Braided
Core Colour ANSI Color Code
Max Temp PTEE (260t). Fibre-Glass (400"C)
Size of Conductor From AWG 10 to AWG 36 or As Per Customer
Shielding Material SS, Bare Copper, SPC, NPC or as ner Customer
Jacket Insulation PTFE, Fibre-glass, PVC Ceramic, SS Braided
Jacket Color ANSI Color Code