Sense Thermo Instruments India Pvt. Ltd. from Pune, Maharashtra is one of the prominent manufacturers and suppliers of thermocouple in India. Our products are widely demanded in the market, as they are manufactured by using latest technology and methodology. We offer a comprehensive range of thermocouples for a variety of industrial process applications such as blast furnace, heat treatment, Furnace calibration, gas carburizing, rotary Hearth furnace, Sponge iron plant etc.
Type J Thermocouple: The type J is also very common. It has a smaller temperature range and a shorter lifespan at higher temperatures than the Type K. It is equivalent to the Type K in terms of expense and reliability.
| Thermocouple Type | Temperature Range (Continuous)* | Temperature Range (Short Term)* | Thermocouple Materials | Contact Size | Termination |
| K | +32° to +2,012°F (0° to +1,100°C) | -292° to +2,372°F (-180° to +1,300°C) | Chromel & Alumel | #16, #20, #22D | Crimp |
| E | +32° to +1,472°F (0° to +800°C | -40° to +1,652°F (-40° to +900°C) | Chromel & Constantan | #16, #20, #22D | Crimp |
| J | +32° to +1,382°F (0° to +750°C) | -292° to +1,472°F (-180° to +800°C) | Iron & Constantan | #16, #20, #22D | Crimp |
| T | -301° to +572°F (-185° to +300°C) | -418° to +752°F (-250° to +400°C) | Copper & Constantan | #22D | Crimp |
Type J thermocouple is an exceptionally normal and universally useful thermocouple. It has more modest temperature range and a more limited life expectancy at higher temperatures. It comprise of positive leg made of an Iron wire and negative leg made of a Constantan ( Copper-Nickel ) compound wire. Because of the Curie Point of the iron at 770 °C Type J has a restricted temperature scope of - 40°C to 750°C.It ought not be utilized at high temperatures in an oxidizing environment as iron goes through a sub-atomic change and for all time loses its standard voltage yield versus temperature. It doesn't recuperate when the iron is cooled. Type J has affectability of approx 50 microvolts/degree C .The costs and dependability of Type J is same as Type K. For legitimate working of J Type thermocouple decrease environment is wanted and use at low temperature is additionally not suggested.
Among a wide range of thermocouple Type J is the least expensive thermocouple
J Type thermocouple gives 1mV yield for 18 degree C
Valuable in diminishing airs
On the off chance that J Type is secured by compacted mineral protection and proper external sheath, it is useable from 0 to 816°C, (32 to 1500°F). It isn't powerless to maturing in the 371 to 538°C, (700 to 1000°F) temperature range
In J Type thermocouple positive leg is composed of Iron(Fe) and negative leg is composed of mixture of Copper 55% and Nickel wire 45% which is known as constantan alloy.
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