WL thermocouple wire Type E

NiCr-  CuNi thermocouple  (type  E )  is also  named  NiCr-  Constantan thermocouple . The  main chemical composition of positive leg NiCr ( EP) is Ni: Cr≈90:10; negative leg Constantan ( EN) is Cu: Ni ≈ 55% : 45% . Although EN , TN , JN are all called Constantan , EN and TN don not give the same EMF output curve as JN . EN and TN are able to interchange but they are not interchangeable with JN . The operating temperature range of type E thermocouple is -200~900℃.

Type  E  thermocouple  has  the  largest  EMF  output  and  highest  sensitivity,  so  it  is  ideal  for measuring small temperature change . It also has good stability in the low temperature range up to 300℃ , and good property of anti-corrosion in humidity atmosphere . It is recommended for oxidizing or  inert atmospheres ,  but cannot  be  used directly  in  reducing atmosphere and atmosphere with sulphur gases .