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Extension/Compensating Conductor

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Extension/Compensating Conductor

Extension Conductors

Extension conductors are typically made from alloys that match or closely resemble the thermocouple conductors they connect to. This is done to minimize the introduction of additional temperature-related errors. For example, when extending a Type K thermocouple conductors, the extension conductors would also be made from Nickel-Chromium (NiCr) and Nickel-Aluminum (NiAl) alloys to maintain consistency in the electrical properties and temperature characteristics of the overall system.

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Compensating Conductors

Compensating conductors are designed to offset errors introduced by temperature variations along the length of the conductors. These cables often use alloys that exhibit similar thermoelectric properties to the thermocouple conductors but may not be identical. For instance, for a Type K thermocouple conductors, a compensating conductors might use alloys like Nickel-Iron (Ni-Fe) or Copper-Nickel (Cu-Ni). The goal is to minimize temperature-induced errors during the signal transmission process.

 

Type Conductor (*)
Chemical Composition %
Conductor (-)
Chemical Composition %
American Standard
ASTM E230/ANSI MC95.2
European Standard IEC 584
Ni Cr Fe Cu Others Cu Ni Others T/c Range Class 1
(0.4%)
Class 2
(0.75%)
T/c Range Class 1
(0.4%)
Class 2
(0.75%)
KX 90 10 Si+ 94 Si+ Mn+
Others
0°C to 200°C ±1.1°C ±2.2°C -25°C to 200°C ±1.5°C ±2.5°C
KCA
(WX)
100 Bal 43 Mn 2 – Fe 2 0°C to 150°C ±2.5°C
KCB (VX) 100 Bal 44 0°C to 100°C ±2.5°C
NX 84.4 14.2 Si 1.4 95.6 Si4.4 0°C to 200°C ±1.1°C ±2.2°C -25°C to 200°C ±1.5°C ±2.5°C
J 100 Bal 44 Mn+ 0°C to 200°C ±1.1°C ±2.2°C -25°C to 200°C ±1.5°C ±2.5°C
T 100 Bal 44 Mn+ 0°C to 100°C ±0.5°C ±1°C -25°C to 200°C ±0.5°C ±1°C
E 90 10 Bal 44 Mn+ 0°C to 200°C ±1°C ±1.7°C -25°C to 200°C ±1.5°C ±2.5°C
RCB/SCB 100 2 95 Mn+ 0°C to 100°C -25°C to 200°C ±2.5°C

Key properties

Available form – Wire, Rod and Bar in acid wash and luster surface.

Available Diameters – 8.0 mm to 0.16 mm

Quality Check and Analysis – Each spool and Coils has been pass through all properties testing in Tempesens Instrument private limited, Udaipur – NABL accredited lab. Test certificates has been provided.

 

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