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NiCr-NiSi (Type K) thermocouple finds the widest use in all base metal thermocouple, at temperature above 500℃。The main chemical composition of positive leg NiCr (KP) are Ni≈90% and Cr≈10%; negative leg NiSi (KN) are Ni≈97% and Cr≈3%. The operating temperature range is -200~1300℃(for short term) and 0~1100℃( for long term).
Type K thermocouple has strong resistance to oxidation than other base metal thermocouples. It has high EMF against Platinum 67, excellent temperature accuracy, sensitivity and stability, with a low cost. It is recommended for oxidizing or inert atmospheres, but cannot be used directly in the following cases:
(1) Alternatively oxidizing and reducing atmosphere,
(2) Atmosphere with sulphur gases
(3) Long time in vacuum
(4) Low oxidizing atmosphere such as hydrogen and carbon monoxide atmosphere
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 | |||||||
NiCr-NiSi-NiAl (Type K) thermocouple bright wire 镍铬－镍硅（K型）热电偶 | K | I | 1200 | 1300 | -40~1100 | +1.5℃ or +0.4%t | GB/T2614 | |
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。 | ||||||||
NiCr-NiSi (Type K) thermocouple finds the widest use in all base metal thermocouple, at temperature above 500℃。The main chemical composition of positive leg NiCr (KP) are Ni≈90% and Cr≈10%; negative leg NiSi (KN) are Ni≈97% and Cr≈3%. The operating temperature range is -200~1300℃(for short term) and 0~1100℃( for long term).
Type K thermocouple has strong resistance to oxidation than other base metal thermocouples. It has high EMF against Platinum 67, excellent temperature accuracy, sensitivity and stability, with a low cost. It is recommended for oxidizing or inert atmospheres, but cannot be used directly in the following cases:
(1) Alternatively oxidizing and reducing atmosphere,
(2) Atmosphere with sulphur gases
(3) Long time in vacuum
(4) Low oxidizing atmosphere such as hydrogen and carbon monoxide atmosphere
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 | |||||||
NiCr-NiSi-NiAl (Type K) thermocouple bright wire 镍铬－镍硅（K型）热电偶 | K | I | 1200 | 1300 | -40~1100 | +1.5℃ or +0.4%t | GB/T2614 | |
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。 | ||||||||