Product Description

IEC 584 thermocouple wire First class accuracy 1.5mm 2.0mm 3.2mm  (type K /J /E/N/T )
The Type J thermocouple is composed of an iron (+) wire versus a nickel-45% copper (-) wire. This type of thermocouple should be used in oxidizing, reducing, vacuum or inert atmospheres with a service temperature range between 0°C and 760°C (32°F to 1400°F). If the thermocouple is being used over 540°C (1000°F) an 8 gauge wire should be used due to rapid oxidation of the iron (+) wire. Type J thermocouples should not be used in sulfurous applications above 540°C (1000°F). The negative element, or JN, of a Type J thermocouple can be described by any of the following names Constantan, ThermoKanthal -JNs, HAI-JN1, Cuprona, or, Advances. The positive element, or JP, of a Type J thermocouple can be described by any of the following names: ThermoKanthal-JPs, and lron.

Detailed Parameter

Chemical Composition
Conductor Name	Polarity	Code	Nominal Chemical Composition /%
			Ni	Fe	Cu
Fe	Positive	JP	--	100	--
Constantan	Negative	JN	45	--	55

 

Working Temperature Range
Diameter/mm	Long time Working temperature /ºC	Short period Working temperature /ºC
0.3, 0.5	300	400
0.8, 1.0, 1.2	400	500
1.6, 2.0	500	600
2.5, 3.2	600	750
2.0,2.5	1100	1200
3.2	1200	1300

Application:

Heating - Gas burners for ovens
Cooling - Freezers
Engine protection - Temperatures and surface temperatures
High temperature control - Iron casting