NiCrSi-NiSiMg Type N Extension Wire The Ultimate Solution for Temperature Measurement
NiCrSi-NiSiMg Type N Thermocouple Compensation and Extension Wire is engineered to extend the reach of Type N thermocouples while preserving the integrity of temperature measurements. This wire, composed of nickel-chromium-silicon (NiCrSi) and nickel-silicon-magnesium (NiSiMg).
Key features include superior oxidation resistance, attributed to the protective diffusion barrier formed by chromium and silicon, and improved repeatability in the 300°C to 500°C range. The wire also exhibits magnetic stability and a longer operational life compared to other types, such as Type K, due to reduced EMF drift.
Type N thermocouples are advantageous in environments similar to Type K, with a particular edge in industries demanding precise temperature control. They are manufactured to adhere to international standards, ensuring quality and reliability. The compensation wire ensures accurate signal transmission from the sensing element to the measuring device, crucial for maintaining measurement accuracy across extended distances.
Thermocouple temperature range and tolerance
Themcouple No. indexing |
Compensation wire type |
Usag classification |
Measuring junction temperature/
℃
|
Standardc EMF value/μV |
Presion grade |
General grade |
Tolerance/μV |
Thermal EMF range/μV |
Tolerance/μV |
Thermal EMF range/μV |
N |
NX OR NC |
G |
-25 |
-646 |
±43 |
-603~-690 |
±86 |
-560~-732 |
100 |
2774 |
2731~2817 |
2688~2960 |
H |
-25 |
-646 |
±43 |
-603~-690 |
±86 |
-560~-732 |
100 |
2774 |
2731~2817 |
2688~2960 |
200 |
5913 |
5870~5956 |
5827~5999 |
Compensation wire type |
Reciprocating Resistance (Ω/m20℃ less than) |
0.2mm² |
0.5mm² |
1.0mm² |
1.5mm² |
2.5mm² |
NC |
3.75
|
1.5 |
0.75 |
0.5 |
0.3 |
NX |
7.15 |
2.86 |
1.43 |
0.95 |
0.57 |
Some key features of NiCrSi-NiSiMg Type N Thermocouple Compensating & Extension Wire include:
- Temperature Range: It operates within a broad temperature range of -200°C to 1300°C, suitable for extreme temperature environments
- Oxidation Resistance: The wire offers superior oxidation resistance due to the protective diffusion barrier formed by chromium and silicon in the positive Nicrosil conductor
- Repeatability: Type N thermocouples show improved repeatability in the 300°C to 500°C range, which is crucial for accurate temperature measuremen
- Magnetic Stability: The high levels of chromium in the NP conductor and silicon in the NN conductor provide improved magnetic stability
- Longevity: Type N thermocouples have a longer operational life than Type K thermocouples, with reduced EMF drift and short-term EMF changes
- Resistance to Transmutation: The absence of manganese, aluminium, and copper in the NN conductor makes Type N thermocouples more stable against nuclear bombardment
- Standard Compliance: Manufactured to meet international standards, ensuring quality and reliability
- Compensation & Extension Wire: The compensation wire is designed to match the thermoelectric properties of the thermocouple, ensuring that the signal from the sensing element is transmitted accurately to the measuring or control device
These features make NiCrSi-NiSiMg Type N Thermocouple Compensation & Extension Wire an ideal choice for precise temperature measurement and control in various industrial applications.
Applications:
- Superior Oxidation Resistance: The wire's composition, with higher levels of chromium and silicon in the positive Nicrosil conductor, offers enhanced protection against oxidation.
- Wider Temperature Range: It can operate within a broad temperature range of -200°C to 1300°C, suitable for extreme temperature environments.
- Improved Repeatability: Type N thermocouples show much improved repeatability in the 300°C to 500°C range, where other types like Type K may exhibit instability.
- Magnetic Stability: The high levels of chromium in the NP conductor and silicon in the NN conductor provide improved magnetic stability.
- Longevity: Type N thermocouples have a longer operational life than Type K thermocouples, with reduced EMF drift and short-term EMF changes.
- Resistance to Transmutation: The absence of manganese, aluminium, and copper in the NN conductor makes Type N thermocouples more stable against nuclear bombardment, virtually eliminating the risk of transmutation.
- Applications: Type N thermocouples are used in similar atmospheres to Type K thermocouples and are particularly advantageous in industries where temperature control and measurement are critical.
- Standard Compliance: Manufactured to meet international standards, ensuring quality and reliability.
- Compensation and Extension: The compensating and extension wires for Type N thermocouples are designed to match the thermoelectric properties of the thermocouple, ensuring that the signal from the sensing element is transmitted accurately to the measuring or control device.
These features make NiCrSi-NiSiMg Type N Thermocouple Compensation and Extension Wire an ideal choice for precise temperature measurement and control in various industrial applications.


