NX
Bare
Solid
Heating
Ni Cr Si Mg
No
Bare
Round Wire
Heating, Temperature Measurement
ISO9001, RoHS
Liqun
0.2-1.78mm
Nickel Chrome Silicon
Nickel Silicon Magnesium
Yes
100kg
Liqun
Plywood Cases
1.78/1.38/1.13/0.8/0.52/0.43/0.41/0.3/0.2
China
75052200
Product Description
Thermocouple Extension Bare Wire NPX/NNX
Thermocouple compensating wire is used to connect the electrode (cold side of thermocouple) with display instrument in order to form a temperature measurement system.
Thermocouple compensating wire is used to extend the reference junction of thermocouple and connect with the temperature measuring instrument to form a temperature measuring system.
It usually works in most applications, which include industrial aerospace,nuclear power,chemical industry.
1.Chemical composition and mechanical properties
| Thermocouple type | Extension condution model | Extension condution alloy wire | |||||||||||
| N | NX | Name | Code | Polarity | Chemical Composition/% | Density (g/cm3) | Resistivity (μΩ.cm) | Tensile Strength (Mpa) | |||||
| Ni | Cr | Si | Mg | ||||||||||
| Ni-Cr14-Si | NPX | Positive | 84 | 14.5 | 1.5 | - | 8.7 | <7.9 | >490 | ||||
| Ni-Si4-Mg | NNX | Nagative | 94.5 | - | 4.5 | 1.0 | 8.6 | <0.3 | >390 | ||||
2.Alloy wire specification
| Alloy wire Dia/mm | Apply to the number of wire cores | The nominal cross-sectional area of the wire core /mm² |
| 0.2 | 7 | 0.2 |
| 0.3 | 7 | 0.5 |
| 0.41 | 19 | 2.5 |
| 0.43 | 7 | 1.0 |
| 0.52 | 7 | 1.5 |
| 0.52 | 1 | 0.2 |
| 0.8 | 1 | 0.5 |
| 1.13 | 1 | 1.0 |
| 1.38 | 1 | 1.5 |
| 1.78 | 1 | 2.5 |
3.Couple NPX/NNX EMF reference table (μV)
| Thermocouple type | Extension condution model | Use classification | Operating temperatures/°C | Nominal value of thermoelectric EMF | Level I | |
| Tolerance | Range of EMF | |||||
N | NX NC | G | -25 | -646 | ±43 | -603 ~ -689 |
| 100 | 2774 | 2 731 ~ 2 817 | ||||
N | H | -25 | -646 | ±43 | -603 ~ -689 | |
| 100 | 2774 | 2 731 ~ 2 817 | ||||
| 200 | 5913 | 5 870 ~ 5 956 | ||||
Q1.What is the nature of the company?
A: We are a production enterprise, our company has its own factory.
Q2. What is the MOQ of an order of your company?
A: Our company's MOQ is 100 kg for each type of product.
Q3.Can I get a sample before mass production ?
A: Sample is free,the shipping cost of the sample is paid by the customer .
Q4.How long is the mass production cycle of product?
A: We will end the production within 15-20 days after receiving the deposit.
Q5.What payment method does your company support?
A: We can accept T/T, L/C ,you can choose the one which the most convenient or most effective for you .
A: We are a production enterprise, our company has its own factory.
Q2. What is the MOQ of an order of your company?
A: Our company's MOQ is 100 kg for each type of product.
Q3.Can I get a sample before mass production ?
A: Sample is free,the shipping cost of the sample is paid by the customer .
Q4.How long is the mass production cycle of product?
A: We will end the production within 15-20 days after receiving the deposit.
Q5.What payment method does your company support?
A: We can accept T/T, L/C ,you can choose the one which the most convenient or most effective for you .
