Cheri Heater Technology Co., Ltd is a leading industrial process instrumentation company and a reliable name among industrial thermocouple manufacturers. We offer robust and cost-efficient thermocouple sensors of different types. Our products can be used in challenging industrial environments with high temperatures and perform with the fastest response time.
A thermocouple is a metal sensor used for measuring temperature. It is made with two different types of metals joined together at one end. The temperature at the junction of the two metals creates voltage, which corresponds to the temperature.
The junction has metal conductor wires at the tip. When the ends of these wires are brought into contact, a closed circuit is made. The Seebeck effect then measures the temperature.
As thermocouple sensor manufacturers, we see demand for these sensors in the market because of several benefits they offer.
Our thermocouple sensor manufacturer unit produces sensors for many industrial applications to accurately measure even extreme temperatures. They are cost-effective, low maintenance, robust, fast responding, and highly efficient. The industrial applications of thermocouple sensors include but are not limited to;
1. What is a thermocouple?
A thermocouple is a temperature-sensing device made from two different metals joined at one end. It measures temperature by producing a small voltage that changes with temperature differences.
2. How does a thermocouple work?
When the junction of two dissimilar metals is heated or cooled, a voltage is created that corresponds to the temperature. This voltage is interpreted by a controller or meter.
3. What are the most common types of thermocouples?
The main types include Type J, K, T, E, N, R, S, and B, each designed for specific temperature ranges and environments.
4. What is the most widely used thermocouple type?
Type K thermocouples are the most common because of their wide temperature range, reliability, and affordability.
5. What temperature range can thermocouples measure?
Depending on the type, thermocouples can measure from –200°C to +1800°C.
6. What materials are thermocouples made of?
They are made from combinations of metals such as nickel, chromium, copper, constant an, iron, platinum, and rhodium.
7. Where are thermocouples used?
They are used in industries like plastics, packaging, HVAC, food processing, chemical plants, power generation, and laboratory testing.
8. How accurate are thermocouples?
Accuracy varies by type, but generally ranges between ±1°C to ±2°C, depending on the calibration and environment.
9. What is the difference between grounded and ungrounded thermocouples?
A grounded thermocouple has its junction directly connected to the sheath for faster response, while an ungrounded one is insulated for better electrical isolation.
10. How long does a thermocouple last?
Thermocouples can last thousands of hours, but lifespan depends on temperature, chemical exposure, and mechanical stress.
11. Can thermocouples be reused?
Yes, as long as the thermocouple is not damaged or oxidized, it can be reused after testing its accuracy.
12. What is cold-junction compensation?
It’s a method used to correct the reference temperature at the connection point to ensure accurate readings.
13. Can thermocouples be customized?
Yes, Cheri Heater provides custom thermocouples in various lengths, diameters, wire types, and connector styles.
14. How do I select the right thermocouple for my application?
Consider factors such as temperature range, environment, response time, and compatibility with your controller.
15. What are mineral insulated (MI) thermocouples?
MI thermocouples have a metal sheath with compacted magnesium oxide insulation, offering durability and high-temperature resistance.
16. Are thermocouples compatible with digital controllers?
Yes, most modern controllers and PLCs are designed to read thermocouple inputs directly.
17. How should thermocouples be installed?
Ensure proper insertion depth, secure mounting, and avoid excessive bending to maintain accurate and stable readings.
18. Can thermocouples measure surface temperature?
Yes, with the correct probe design, thermocouples can measure both surface and air temperatures.
19. Do you supply thermocouple accessories?
Yes, Cheri Heater offers connectors, extension wires, protection tubes, and fitting accessories.
20. How can I order thermocouples from Cheri Heater?
Visit cheri-heater.com and send your requirements through our contact form for a quick quotation and expert assistance.
