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Certification
Solid PVC Thermocouple Extension Cable Type T For Electrical Equipment
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Product Details:
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Detailed Product Description
| Conductor Material: | Copper,Cu-Ni | Application: | Electrical Equipment |
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| Conductor Type: | Solid | Insulation Material: | PVC |
| Temperature Range: | 0~1100(℃) | Usage: | Connecting With Thermocouple And Instrument Machine |
| Color: | As Per Customers Request | Theory: | Thermocouple Sensor |
| Insulation: | PVC | Rated Temperature: | -60°C-200°C |
| Jacket: | SS304/SS316 | ||
| Highlight: | Electrical Equipment Thermocouple Extension Cable,Solid type t thermocouple extension wire,PVC Thermocouple Extension Cable |
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Type T Thermocouple Extension Cable
Conductor specification
TYPE T (Copper vs Constantan) is used or service in oxidizing, inert or reducing atmospheres or in vacuum. It is highly resistant to corrosion from atmospheric moisture and condensation and exhibits high stability at low temperatures. It is the only type with limits of error guaranteed for cryogenic temperatures.
1. Chemical Composition
| Material | Chemical composition (%) | ||||
| Ni | Cu | Si | Iron | Al | |
| TP(Copper) | 100 | ||||
| TN(Constantan) | 45 | 55 | |||
2. Physical Properties and Mechnical Properties
|
Material |
Density(g/cm3) |
Melting point(ºC) |
Tensile Strength(Mpa) |
Volume resistivity(μΩ.cm) |
Elongation rate (%) |
| TP(Copper) | 8.9 | 1084 | >196 | 1.71(20ºC) | >30 |
| TN(Constantan) | 8.8 | 1220 | >390 | 49.0(20ºC) | >25 |
In actual temperature measurement, usually there are long measuring distance with the measuring device, a thermocouple compensation wire is generated to compensate the temperature difference caused by the temperature change between the measuring device and the thermocouple connecting piece.
The compensation cable has the following advantages: improving thermocouple temperature measurement line physical properties and mechanical properties; improving the measurement line flexibility and making the connection convenient by using multi-strand core or small-diameter compensation wire; easy to shield external interference; reducing measuring lines cost.
Thermocouple Cable Grade
A:Extension Grade Cable
Whose wire composition is totally as the same as the thermocouple wire, remarked by the letter"X"after the thermocouple symbol number, such as"KX""JX""TX"
B:Compensation Grade Cable
Whose wire composition is different from the thermocouple wire, but its wire electromotive force (EMF) value is the same as thermocouple wire only at 0-100ºC or 0-200ºC. It remarked by the letter"C"after the thermocouple symbol number, such as"KC""JC""TC"
- For cost consideration, when the tested temperature under 200ºC, compensation grade cable is preferred. But compensation grade cable will occur enormous tested temperature value deviation if the tested temperature above 200ºC. The higher the tested temperature, the greater deviation be.
- For compensation grade cable, the max testing temperature is less than 200ºC, the bigger the cable, the smaller the signal loss.
- Extension cable and compensation cable comparison:
| Performance | Extension Grade | Compensation Grade |
| Material | Same as thermocouple | Different from thermocouple |
| EMF Value Feature | Same as the thermocouple's at certain temperature range | Same as the thermocouple's |
| Deviation Curve | Nonlinear, varies with temperature | Linear |
| Working Temperature Range | Limited(usual at 100ºC) | Unlimited(depend on insulation material temperature bearing) |
| Line Resistance | Low resistance | High resistance |
| Compensation Contact Interference | Different contactor material may cause interference | None |
| Accuracy | Low | High |
| Price | Low | High(about 1-2 times higher) |
Contact Details
Ohmalloy Material Co.,Ltd
Contact Person: Mr. Qiu
Tel: +8613795230939
Send your inquiry directly to us
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