Thermocouple Sensors

thermocouple sensorsWe offer an incredible selection of thermocouple sensors for thermal measurements. A quality thermocouple produces voltage in proportion to identified temperature changes. Our reliable and versatile products come from manufacturers with proven records of producing highly dependable thermocouples.

Range of Applications

These industrial temperature sensors can be utilized for direct process insertion or with thermowell and protection tubes. A wide variety of design, sheath material and diameter selections are available to suit a comprehensive range of applications.

A thermocouple sensor device generates valuable measurements and provides input signals to process controllers. By choosing the proper thermocouple wiring and sheath materials, the appropriate device will be installed in a temperature control system.

Mineral insulated thermocouples are rapid responders with intense temperature capacities and magnesium oxide insulation. Standard industrial thermocouples can feature Teflon and fiberglass insulated leads. They vary by temperature range and exterior diameter.

Hi-Watt supplies the most reliable temperature sensors from globally respected manufacturers. Our thermocouple sensors and sensing instruments are available in general application (tube and wire), mineral insulated metal sheathed, high temperature, base metal, surface temperature and other thermocouple categories.

The K type thermocouple and J type thermocouple as well as other common type calibrations available depending on your application and specific needs.

Thermocouple Accessories

Hi-Watt offers a full line of accessories to accommodate your varying sensor requirements such as thermocouple wire and more. These support products can be used to install and maintain your temperature sensor assemblies. Give us a call today for a quote.

  • Standard and Mini Connectors
  • Jack Panels
  • Connection Heads
  • Compression Fittings
  • Bayonet Adapters

Thermocouple Types

There are a wide variety of types of thermocouples. The most popular being the K type thermocouple and the J type thermocouple which along with type T and E are what are known as “Base Metal” thermocouples. The types depend on variables such as temperature range, durability, resistance to vibration, chemical resistance and more. Contact Hi-Watt Inc. to find out which type of thermocouple will suit your application.

Thermocouple Temperature Sensor for Processing

Our leading lines of thermocouple temperature sensors come with broad temperature range capabilities. Thermocouple devices are widely deployed for process and industry applications due to their measurement ranges and durable construction. Their specifications include various calibrations, with J type thermocouples and K type thermocouples commonly used. High temperature calibrations, such as R and S, are also available.

Factors to review in selecting a thermocouple include: temperature range, chemical resistance, system compatibility, and installation requirements. Specific calibrations coordinate with specific temperature ranges. Maximum temperatures are dictated by wire diameter. Call Hi-Watt in Detroit, Michigan to determine the unique advantages our sensors will bring to your company.

NTC Thermistor vs Thermocouple

Similar to a NTC thermistor, a thermocouple is an accurate way to measure resistance and temperature. Thermocouples use two dissimilar metals that are conductive and connected at a single point. This forms two electrical junctions: measuring and reference, also known as hot and cold.

K-type thermocouples use these junction points to maintain two different temperatures and produce low DC voltage that is temperature dependent. This thermo-electric voltage allows the sensor to measure the resistance, which is used to measure the temperature.

As an all-purpose sensor, thermocouples are capable of extreme temperatures ranging from -200 degrees Celsius to 1,250 degrees Celsius. Despite the larger temperature range, these sensors aren’t always as accurate due to calibration drift.

Thermocouple Applications

The most common thermocouple applications are in the steel and iron industries. This is due to the extreme temperature compatibility. Install a thermocouple to read temperatures in kilns, boilers and furnaces without worrying about damaging your sensor. Compared to an NTC thermistor, thermocouples have a shorter and less predictable lifespan. Expect to replace a thermocouple more often, which results in higher costs.

Learn More About These Dynamic Sensors

At Hi-Watt, we carry the latest Watlow thermistors and reliable thermocouple options. Find out how we can assist you in choosing the best sensor option for your PCB and upgrade your temperature sensors to keep accurate information on hand for your technicians. Contact us today to learn more about the benefits of thermistors and thermocouples and compare leading options to choose the ideal sensor at a great price.

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