A Quick Guide: Thermocouple Reference Table for High Temperature Sensor Probe (Type R, S, B, C)
High-Temperature Thermocouple
High temperature thermocouples are specialized sensors designed to measure extreme temperatures, typically above 1000°C, in industrial settings like furnaces or kilns. They are made from materials that can withstand intense heat, ensuring accurate and reliable readings in harsh environments.
Why High-Temperature Thermocouples is crucial
High temperature thermocouples are important devices used in many industries to measure super high temperatures. They are popular because they are durable, reliable, and accurate. Industries like manufacturing, semi-conductor, energy, metal processing, and aviation all rely on these devices. Whether in a furnace or a kiln, thermocouples help make sure that processes run smoothly and efficiently.
There are different types of thermocouples, each designed for specific temperature ranges and jobs. For example, high-temperature thermocouples, like Types R, S, B, and C, are made to handle extreme heat. These are commonly used in places where other sensors might not work, such as in a high-temperature vacuum furnace. Having the right thermocouple is crucial for getting precise temperature readings in these tough environments.
Why the Right Thermocouple Matters
Thermocouple manufacturers offer a variety of industrial thermocouples, each suited for different conditions. Picking the right type is important to ensure accurate temperature monitoring. Whether you're using a furnace thermocouple or another type, it's essential to have a calibrated sensor. Regular tc calibration helps make sure your thermocouple is giving accurate readings and reliable data. This is very important in certain industries where some temperature changes can lead to significant issues. Understanding thermocouple technologies can help you choose the right one for your needs, ensuring safety, efficiency, and accuracy.
Thermocouple Reference Table for High-Temperature Applications
A thermocouple reference table is a useful tool when working with high-temperature thermocouples. It shows how the thermocouple's voltage output matches up with temperatures. For industrial thermocouples like Types R, S, B, and C, these tables are great supplemental tools for getting accurate temperature readings. By using the table, you can convert the millivolt readings from your thermocouple meter into exact temperature values, keeping the quality of your measuring journey.
These tables are usually made by the National Institute of Standards and Technology (NIST) and are based on extensive testing and calibration. Using a calibrated thermocouple along with a good reference table lets you get the thermocouple's highest temperature readings confidently. Whether you're working in a furnace, kiln, or another industrial setting, understanding how to use these tables is key to optimizing your operations.
Top Tips for Using a Thermocouple Reference Table Effectively
- Calibration: Always make sure both your thermocouple and measuring instrument are properly calibrated for accurate readings. If needed, you can have them examined by an accredited temperature measurement laboratory.
- Reference Junction Temperature: Ensure the reference junction temperature is set correctly, as it affects the results of your measurement.
- Using the Reference Table: The thermocouple reference table is a great tool for precise measurements. Just match the voltage reading with the reference junction temperature to find the actual temperature.
In the following tables, we will show temperature and voltage reference tables of several common thermocouple types (from Table 1 to 4) at certain temperature interval and the reference junction temperature is 0°C.
Table 1: Type R thermocouples - Thermoelectric Voltage in Millivolts
| °C | -50 | 0 | 100 | 150 | 200 | 250 | 300 | 400 | 500 | 600 | 700 | °C |
| 0 | -0.226 | 0.000 | 0.647 | 1.041 | 1.469 | 1.923 | 2.401 | 3.408 | 4.471 | 5.583 | 6.743 | 0 |
| °C | 800 | 900 | 1000 | 1100 | 1200 | 1300 | 1400 | 1500 | 1600 | 1700 | 1760 | °C |
| 0 | 7.95 | 9.205 | 10.506 | 11.85 | 13.228 | 14.629 | 16.04 | 17.451 | 18.849 | 20.222 | 21.003 | 0 |
Table 2: Type S thermocouples - Thermoelectric Voltage in Millivolts (M3)
| °C | -50 | 0 | 100 | 150 | 200 | 250 | 300 | 400 | 500 | 600 | 700 | °C |
| 0 | -0.236 | 0.000 | 0.646 | 1.029 | 1.441 | 1.874 | 2.323 | 3.259 | 4.233 | 5.239 | 6.275 | 0 |
| °C | 800 | 900 | 1000 | 1100 | 1200 | 1300 | 1400 | 1500 | 1600 | 1700 | 1760 | °C |
| 0 | 7.345 | 8.449 | 9.587 | 10.757 | 11.951 | 13.159 | 14.373 | 15.582 | 16.777 | 17.947 | 18.609 | 0 |
Table 3: Type B thermocouples - Thermoelectric Voltage in Millivolts
| °C | 0 | 50 | 100 | 150 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | °C |
| 0 | 0.000 | 0.002 | 0.033 | 0.092 | 0.178 | 0.431 | 0.787 | 1.242 | 1.792 | 2.431 | 3.154 | 0 |
| °C | 900 | 1000 | 1100 | 1200 | 1300 | 1400 | 1500 | 1600 | 1700 | 1800 | 1820 | °C |
| 0 | 3.957 | 4.834 | 5.78 | 6.786 | 7.848 | 8.956 | 10.099 | 11.263 | 12.433 | 13.591 | 13.82 | 0 |
Table 4: Type C thermocouples - Thermoelectric Voltage in Millivolts
| °C | 0 | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | °C |
| 0 | 0.000 | 1.451 | 3.089 | 4.863 | 6.731 | 8.655 | 10.606 | 12.558 | 14.494 | 16.397 | 18.257 | 0 |
| °C | 1100 | 1200 | 1300 | 1400 | 1500 | 1600 | 1700 | 1800 | 1900 | 2000 | 2310 | °C |
| 0 | 20.066 | 21.819 | 23.514 | 25.148 | 26.722 | 28.236 | 29.688 | 31.078 | 32.404 | 33.66 | 37.015 | 0 |
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