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Nicrsi-NisiMg (Type N) thermocouple is the latest base metal thermocouple, developed to improve the drawbacks that type K thermocouple has. The main chemical composition of positive leg Nicrsi (NP) is Ni: Cr: Si≈84.4: 14.2: 1.4; negative leg NisiMg (NN) is Ni: Si: Mg≈95.5: 4.4: 0.1. Type N thermocouple also be used in the similar atmospheres that type K works, and the operating temperature range is -200~1300℃.
Type N thermocouple improves the EMF drift and short term EMF change, compared to type K thermocouple, and has a longer life than type K thermocouple. Therefore, in the industries where temperature control and measurement are especially critical, type N thermocouple has more advantages than other thermocouple as it has long life and stable thermal EMF.
Thermocouple temperature range and tolerance
Name 热电偶名称
| Usag Classification 分度 | Grade 等级 | Operating temperature range （℃）最高使用温度范围 |
Temperature range（℃） 温度范围
| Tolerance 允许偏差 | Standard
热行标准 | ||
Long term长期 | Short term 短期 | |||||||
NiCrSi-NiSiMg(Type N) thermocouple bright wire
镍铬硅-镍硅镁（N型）热电偶
| N | I | 1200 | 1300 | -40~1100 | +1.5℃ or +0.4%t | GB/T17615 | |
Ⅱ | -40~1300 |
+2.5℃ or +0.75%t | ||||||
* Operating temperature range (℃) 最高使用温度范围指下列规格: Ø3.2mm。 | ||||||||
Nicrsi-NisiMg (Type N) thermocouple is the latest base metal thermocouple, developed to improve the drawbacks that type K thermocouple has. The main chemical composition of positive leg Nicrsi (NP) is Ni: Cr: Si≈84.4: 14.2: 1.4; negative leg NisiMg (NN) is Ni: Si: Mg≈95.5: 4.4: 0.1. Type N thermocouple also be used in the similar atmospheres that type K works, and the operating temperature range is -200~1300℃.
Type N thermocouple improves the EMF drift and short term EMF change, compared to type K thermocouple, and has a longer life than type K thermocouple. Therefore, in the industries where temperature control and measurement are especially critical, type N thermocouple has more advantages than other thermocouple as it has long life and stable thermal EMF.
Thermocouple temperature range and tolerance
Name 热电偶名称
| Usag Classification 分度 | Grade 等级 | Operating temperature range （℃）最高使用温度范围 |
Temperature range（℃） 温度范围
| Tolerance 允许偏差 | Standard
热行标准 | ||
Long term长期 | Short term 短期 | |||||||
NiCrSi-NiSiMg(Type N) thermocouple bright wire
镍铬硅-镍硅镁（N型）热电偶
| N | I | 1200 | 1300 | -40~1100 | +1.5℃ or +0.4%t | GB/T17615 | |
Ⅱ | -40~1300 |
+2.5℃ or +0.75%t | ||||||
* Operating temperature range (℃) 最高使用温度范围指下列规格: Ø3.2mm。 | ||||||||