NiCr- CuNi(Constantan) thermocouple (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 -200~900ºC.
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 300ºC, 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.
Thermocouple temperature range and tolerance
| Name |
Grade |
operating temperature range(ºC) |
temperature range(ºC) |
Tolerance |
standard |
| long term |
short term |
| K |
l |
1200 |
1300 |
-40~1100 |
+1.5ºC or+0.4%t |
GB/T2614 |
| ll |
-40~1300 |
+2.5ºC or+0.75%t |
| E |
l |
750 |
900 |
-40~800 |
+1.5ºC or+0.4%t |
GB/T4993 |
| ll |
-40~900 |
+2.5ºC or+0.75%t |
| J |
l |
600 |
750 |
-40~750 |
+1.5ºC or+0.4%t |
GB/T4994 |
| ll |
-40~350 |
+2.5ºC or+0.75%t |
| T |
l |
300 |
350 |
-40~350 |
±0.5ºC or±0.4%t |
GB/T2903 |
| ll |
±1ºC or±0.75%t |
| lll |
-200~40 |
±1ºC or±1.5%t |
| N |
l |
1200 |
1300 |
-40~1100 |
+1.5ºC or+0.4%t |
GB/T17615 |
| ll |
-40~1300 |
+2.5ºC or+0.75%t |
FAQ
Do you offer samples?
Yes.We can provide a free sample for testing,buyer should bear all the shipping costs
Can I get some discounts?
Yes,depending on you order amount,the more you order,the cheaper it will be.
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