Thermocouple ผลิตและจำหน่าย (Pre-order)
Thermocouple
Sheath theremocouple Type-K (Single Element)
– Dia 10*710 mm.
-Tube Inconel 600
-Small K-Head Aluminium
Pre-order Product From Customers
The thermocouple is one of the least complex of all sensors and as such it can be both rugged and low cost making it ideally suited for use in industrial applications.
It consists of two wires of dissimilar metals that are joined at the measurement point; referred to as the hot junction. The output from the sensor is a voltage proportional to the temperature difference between the hot junction and the cold end of the wires. The voltage generated is both very small and nonlinear, this presents design challenges for manufacturers of thermocouple instrumentation. However if the instrumentation is designed correctly the thermocouple provides a very low cost sensor that can be easily replaced if damaged.
Some commonly used thermocouple types and their use range are listed below.
| Thermocouple type | Use range (excluding limitation of wire insulation) | Wire composition |
| Type K | -270 to 1370C (-454 to 2500F) | Ni-Cr (+ve ) and Ni -Al |
| Type N | -270 to 1300C (-454 to 2372F) | Ni-Cr-Si (+ve ) and Ni-Si-Mg |
| Type T | -270 to 400C (-454 to 752F) | Cu (+ve) and Cu-Ni |
| Type J | -210 to 1200C (-346 to 2193F) | Fe (+ve) and Cu-Ni |
| Type E | -270 to 1000C (-454 to 1832F) | Ni-Cr (+ve) and Cu -Ni |
| Type R | -50 to 1768C (-58 to 3214F) | Pt-13% Rh (+ve) and Pt |
| Type S | -50 to 1768C (-58 to 3214F) | Pt-10% Rh (+ve) and Pt |
| Type B | 0 to 1768C (32 to 3308F) | Pt-30% Rh (+ve) and Pt |
Description
Thermocouple
Sheath theremocouple Type-K (Single Element)
– Dia 10*710 mm.
-Tube Inconel 600
-Small K-Head Aluminium
Pre-order Product From Customers
Some commonly used thermocouple types and their use range are listed below.
| Thermocouple type | Use range (excluding limitation of wire insulation) | Wire composition |
| Type K | -270 to 1370C (-454 to 2500F) | Ni-Cr (+ve ) and Ni -Al |
| Type N | -270 to 1300C (-454 to 2372F) | Ni-Cr-Si (+ve ) and Ni-Si-Mg |
| Type T | -270 to 400C (-454 to 752F) | Cu (+ve) and Cu-Ni |
| Type J | -210 to 1200C (-346 to 2193F) | Fe (+ve) and Cu-Ni |
| Type E | -270 to 1000C (-454 to 1832F) | Ni-Cr (+ve) and Cu -Ni |
| Type R | -50 to 1768C (-58 to 3214F) | Pt-13% Rh (+ve) and Pt |
| Type S | -50 to 1768C (-58 to 3214F) | Pt-10% Rh (+ve) and Pt |
| Type B | 0 to 1768C (32 to 3308F) | Pt-30% Rh (+ve) and Pt |
