Sivasangaran Industrial Instruments is a name that is enlisted amidst the preeminent organizations that are offering a wide range of optimum quality hardware fittings. Based in Pondicherry (India). we serve as a remarkable manufacturer, exporter and supplier of LED timers, strip heater, nozzle heaters, temperature controllers, electric heater controller, resistance temperature detector. band heater, cartridge heater, thermocouple wire, thermocouple sensor, electronic thermocouple, and extruder thermocouple. The above-mentioned range of hardware fittings are manufactured by using fine quality raw materials, which are procured directly from our highly reliable vendors in the industry. We are selling these products in different stores across India and other countries abroad at a reasonable price range.
Deeply rooted in India, Sivasangaran Industrial Instruments is one of the well-known fraternities that are engaged in manufacturing, exporting and supplying the fine quality wires, heaters, sensors, LED timers and various others. The brilliant mind behind the establishment of our organization is Mr. Sivasangaran (CEO). He laid the foundation stone of the company in the year 2018.
We manufacture a large assortment of hardware fittings at our well-structured inventory. Our inventory is segregated into separate units for processing, warehousing, logistics, quality testing, and research & development. It allows us to finish our consignments in a proficient, smooth and timely manner.
We are backed by a spacious warehousing unit, which helps us in storing large consignments at a time in a safe manner. It is supervised by our meticulous warehouse keepers.
A thermocouple is a sensor that measures temperature. It consists of two different types of metals, joined together at one end. When the junction of the two metals is heated or cooled, a voltage is created that can be correlated back to the temperature. A thermocouple is a simple, robust and cost-effective temperature sensor used in a wide range of temperature measurement processes. Thermocouples are manufactured in a variety of styles, such as thermocouple probes, thermocouple probes with connectors, transition joint thermocouple probes, infrared thermocouples, bare wire thermocouple or even just thermocouple wire. Thermocouples are commonly used in a wide range of applications. Due to their wide range of models and technical specifications, but it is extremely important to understand its basic structure, functionality, ranges as to better determine the right thermocouple type and material of thermocouple for an application.
According to different types of combinations of alloys, the thermocouples are available in different types. The type of thermocouple is chosen according to the application, cost, availability, stability, chemical properties, output, and temperature ranges. Here we will discuss different types of thermocouples with their characteristics.
The K type thermocouple is the most common type of thermocouple, and it has the widest temperature measuring range.
The positive lead of Type K thermocouple is composed of approximately 90% nickel and 10% chromium. The negative lead is composed of approximately 95% nickel, 2% aluminum, 2% manganese, and 1% silicon.
The positive lead is colored yellow and it is a non-magnetic material. The negative lead is colored red and it is a magnetic material. And the overall jacket is colored yellow.
The temperature range of type K thermocouple is -200˚C to +1260˚C (-328 F to +2300 F). It is inexpensive and widely used in the general-purpose applications where temperature sensitivity requires approximately 41μV/˚C.
The accuracy of type K thermocouple is ±2.2 C% (0.75%). The accuracy of thermocouple also depends on the deviation in alloys.
Type K thermocouple performs best in a clean oxidizing atmosphere. It is not recommended to use for partially oxidizing conditions in a vacuum.
This type of thermocouple is suitable to measure the low temperature. The positive lead is composed of copper and the negative lead is composed of constantan (45% nickel and 55% copper).
The sensitivity of the type T thermocouple is 43 μV/°C. This thermocouple is suitable to works in an oxidizing atmosphere. The temperature range of this thermocouple is between -200°C to 350°C.
This type of thermocouple is a low cost and most used thermocouple. The positive lead is made of iron and a negative lead is made of constantan (45% nickel and 55% copper).
The positive lead is colored white and the negative terminal is colored red. And the overall jacket is colored black.
The temperature range of type J thermocouple is between -210˚C to 750˚C (-346F to 1400F). This type of thermocouple has a smaller temperature range and short life span compared to type K thermocouple. But this type of thermocouple is well suited for the oxidizing atmospheres.
The accuracy of this type of thermocouple is ±2.2˚C (0.75%). This type of thermocouple is not recommended for lower temperature applications. And the sensitivity of this type of thermocouple is approximately 50μV/˚C.
This type of thermocouple has higher accuracy and stronger signal than type K and J thermocouple at moderate temperature ranges. And it is a more stable type thermocouple than type K. The type E thermocouple produces the highest EMF per degree than other types of a thermocouple.
The positive lead is composed of nickel-chromium (90% nickel and 10% chromium) and a negative terminal is composed of constantan (95% nickel, 2% aluminum, 2% manganese, and 1% silicon). The positive lead is colored purple and negative lead-colored red.
The temperature range of this type of thermocouple is between -270˚C to 870˚C (454 to 1600F). And standard accuracy is ±1.7˚C%.
This type of thermocouple is used where high accuracy and fast response required. It is not used for vacuum or low oxygen applications and Sulphuric environment. The cost of type E thermocouple is more than the type J and K thermocouple.
Type N thermocouple is designed by the Defense Science and Technology Organization (DSTO) of Australia, by Noel A. Burley. The accuracy and temperature limits of type N thermocouple is the same as the type K thermocouple.
The temperature range of type N thermocouple is between -270 °C and 1300 °C. Sensitivity is slightly lower than type K thermocouple and it is 39μV/˚C.
Type N thermocouple is composed of Nicrosil and Nisil. Where Nicrosil is a combination of Nickel, Chromium, and Silicon. And it made positive wire. The Nisil is a combination of Nickel and Silicon. And it made negative wire.
This thermocouple is the best alternative of type K thermocouple for low oxygen conditions. This type of thermocouple is suitable to use in vacuum, oxidizing atmosphere, inert atmosphere, or dry atmosphere.
Type S thermocouples are used for higher temperature applications. Because of high accuracy and stability, sometimes it is used for low temperature also.
The temperature range of type S thermocouple is between 630 °C to 1064 °C. The positive lead is composed of 90% platinum, 10% Rhodium, and the negative led is composed of Platinum.
Generally, this type of thermocouple is used in the application like Pharmaceutical and Biotech industries where the high temperature should be measure with high accuracy.
Type R thermocouple is also composed of Platinum and Rhodium. But the output range and stability of type R thermocouple is slightly more than the type S thermocouple.
The positive lead pf type R thermocouple is composed of 87% Platinum and 13% Rhodium. And the negative lead is composed of Platinum. The temperature range of this thermocouple is between 0 °C to 1600 °C.
Type B thermocouples are also made up of a combination of Platinum and Rhodium. The positive lead of a thermocouple is composed of 70% Platinum and 30% Rhodium. And the negative lead is composed of 94% Platinum and 6% Rhodium.
Type B thermocouple is used to measure the temperature up to 1800°C. But the output of this thermocouple is lower compared to type R and S thermocouples.