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Showing Results For: Thermocouples

Thermocouples

A thermocouple is an advanced temperature-sensing device generating precise voltage signals based on the thermoelectric effect between two distinct metals or alloys. Thermocouples are known for their robust durability, high accuracy, fast response time, and broader temperature ranges. A thermocouple sensor integrates dual dissimilar conductors (metal wires) joined at one end–called a hot junction, while connected to a measuring device at another end– known as a cold junction. 

A specialised temperature measurement device such as a voltmeter easily measures and reads the generated voltage by thermocouples. Furthermore, bespoke measurement devices allow robust compatibility with a range of temperature sensing equipment, including data loggers, temperature controllers, and digital displays. In addition, thermocouples can monitor and control temperatures in a vast array of industrial, commercial, and domestic settings.

Common Thermocouple Types: Understanding Their Different Varieties

Thermocouples come in various different types, classified based on their temperature ranges and materials. They are specified by letters and include:

  • Base Metal Thermocouples – They are constructed from common alloys such as chromel/alumel and include Type K thermocouples. Other types include Type J and Type T thermocouples–made of iron/constantan and copper/constantan, respectively. These thermocouples provide affordable temperature sensing solutions with wide temperature ranges.
  • Nobel Metal Thermocouples – These thermocouples utilise precious metals like Platinum and Rhodium, providing robust stability and high accuracy. Type S, Type R, and Type B thermocouples are examples of noble metal thermocouples.

Apart from the above types, there are other thermocouple types, such as:

It is pertinent to mention that type K thermocouples are the most prominent and widely used sensing devices due to their general-purpose functionalities and unique features.

Potential Advantages of Thermocouples

Thermocouples offer several advantages over other temperature measurement methods, making them competitive products, such as:

  • Affordable Products: Thermocouples are affordable and widely available on the market, meeting users’ specific requirements.
  • Wide Temperature Measurement Range: Thermocouples can measure temperatures from -200°C to over 2300°C and withstand harsh environmental conditions.
  • Fast and Efficient Response Time: They provide quick and accurate temperature readings due to their low thermal mass.
  • Durability and Reliability: Thermocouples are robust and resistant to shock, vibration, and harsh environments, ensuring reliable and long-lasting performance.
  • Self-Powered Products: Thermocouples generate their voltage, eliminating the requirements of external power sources.

Selecting the Right Thermocouple

Choosing the appropriate thermocouple depends on several factors determining their effectiveness and functional performance. These factors include temperature range, response time, materials, chemical compatibility, accuracy requirements, and budget. These consideration criteria help select the correct type and sheath material for optimal performance and longevity.

Thermocouple Installation and Maintenance Requirements

Thermocouples’ proper installation and maintenance are crucial for accurate and reliable temperature measurement applications. 

  • Ensure proper connections at the measuring instrument and the junctions.
  • Protect the thermocouple from physical damage, corrosion, and contamination.
  • Regularly calibrate and verify the accuracy of the thermocouple using a reference source.
  • Replace damaged or worn-out thermocouples promptly to maintain measurement integrity.

Thermocouple Accessories

In addition to thermocouples of different varieties, various accessories are available designed to enhance thermocouple performance and protection. These accessory types include:

  • Connectors and Terminal Blocks: Enable secure and reliable connections at junctions and instruments.
  • Thermowells: Provide mechanical protection and facilitate thermocouple insertion into process pipelines or vessels.
  • Extension Cables: Connect the thermocouple to the measuring instrument while maintaining accurate temperature readings.
  • Transmitters: Convert the thermocouple signal into a standardised output, such as 4-20 mA or digital communication protocols. 

Thermocouples Typical Applications

Thermocouples find extensive applications in various industries and devices, including:

  • Monitoring and controlling temperatures in chemical plants, oil refineries, power plants, and food processing.
  • HVAC Systems
  • Aerospace and Automotive
  • Lab equipment, environmental chambers, and medical devices.
  • Monitoring temperature in boilers, turbines, and heat exchangers.
  • Automotives
  • Hospitals
  • Food Thermometers
  • Regulators
  • Sensors
  • Thermostats
  • Ovens
  • Food Industry
  • Power Generation.

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Electrotherm
Rohs Verified
294-1J-3-350-500, Electrotherm
99 In Stock
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1 +
£ 39.48
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294-1K-1.5-350-200, Electrotherm
6 In Stock
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1 +
£ 37.90
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294-1K-1.5-350-500, Electrotherm
8 In Stock
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1 +
£ 39.48
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K7T-1K-100-350-G1/4, Electrotherm
21 In Stock
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1 +
£ 52.09
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294-1K-4.5-205-1000, Electrotherm
13 In Stock
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£ 55.08
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294-1J-1.5-205-300, Electrotherm
90 In Stock
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1 +
£ 44.87
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294-1J-1.5-350-500, Electrotherm
94 In Stock
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1 +
£ 39.93
Electrotherm
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294-1J-3-205-300, Electrotherm
95 In Stock
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£ 43.37
Electrotherm
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282-1J-6-1000S, Electrotherm
75 In Stock
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£ 56.50
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294-1K-1.5-205-300, Electrotherm
104 In Stock
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£ 41.51
Electrotherm
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282-1K-3-0500S-ge, Electrotherm
81 In Stock
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£ 35.35
RS_236-4255, NEUTRAL
129 In Stock
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1 +
£ 44.20
5 +
£ 42.92
10 +
£ 41.07
Electrotherm
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282-1K-3-0200S, Electrotherm
76 In Stock
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1 +
£ 32.17
Electrotherm
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282-1K-4.5-0500S, Electrotherm
82 In Stock
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£ 39.31
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294-1J-4.5-350-500, Electrotherm
103 In Stock
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£ 41.87
Rohs Verified
K7T-1J-100-350-G1/4, Electrotherm
18 In Stock
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1 +
£ 52.09
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294-1J-1.5-350-200, Electrotherm
92 In Stock
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£ 38.34
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294-1K-4.5-350-1000, Electrotherm
15 In Stock
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£ 50.69
Electrotherm
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282-1J-3-0500S, Electrotherm
71 In Stock
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£ 35.35
Electrotherm
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282-1K-3-0500S, Electrotherm
80 In Stock
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1 +
£ 35.35
Electrotherm
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282-1K-4.5-1000S, Electrotherm
84 In Stock
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£ 48.12
Electrotherm
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294-1J-3-205-500, Electrotherm
96 In Stock
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£ 45.48
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294-1K-1.5-205-500, Electrotherm
5 In Stock
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£ 42.58
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K7T-1J-100-205-M10, Electrotherm
17 In Stock
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£ 55.44
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K7T-1J-100-350-M10, Electrotherm
19 In Stock
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£ 49.45
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New Items
New items
U1185A, Keysight Technologies

U1185A, Keysight Technologies

The Keysight Technologies J-type thermocouple and adapter comes with handheld digital multimeter which helps in checking more and with wider measurement ranges. They feature true RMS readings on their 10,000-count displays. The adjustable backlighting allows you to complete your jobs even in subdued lighting conditions, or to simply prolong battery life. Your maintenance tasks are greatly simplified due to the built-in switch counter, harmonic ratio, dual and differential temperature capabilities, with just a press of the button. 10,000-count display 0.09% basic DCV accuracy True RMS AC measurement Manual data logging T/C adapter J/K-type T/C bead J-type goes up to 20 to 200 °C temperature
New items
282-1N-3-0300M, Electrotherm

282-1N-3-0300M, Electrotherm

The Electrotherm bendable sheathed thermocouple has mini or standard plug and implementation of the measuring point is insulated from sheath. Bending radius of the sheathed material is greater than equal to 5 x diameter d Sheathed material stainless steel
New items
282-1N-3-0300S, Electrotherm

282-1N-3-0300S, Electrotherm

The Electrotherm bendable sheathed thermocouple has mini or standard plug and implementation of the measuring point is insulated from sheath. Bending radius of the sheathed material is greater than equal to 5 x diameter d Sheathed material stainless steel
New items
SFIL1, Hanna Instruments

SFIL1, Hanna Instruments

Wired K type thermocouple probes ''K'' type glass filament thermocouple probes. Their flexibility allows these probes to be used in cold stores, kilns, ovens etc. No temperature loss up to 20 metres. Each probe has a miniature plug compatible with the connectors for K type thermocouples and portable thermometers Five cable sizes available. Temperature range: –200 °C → +400 °C
New items
901250/32-1043-1,5-200-11-2500/000, Jumo

901250/32-1043-1,5-200-11-2500/000, Jumo

Mineral insulated thermocouples in accordance with DIN 43710 and IEC 584, types K and L For temperatures from -200 °C → +1200 °C With reinforcing sleeve and silicon-insulated 0.5 mm 2 compensating lead Rapid response times Application-specific installation length Thermocouple: Fe-CuNi, type L Temperature range: -200 °C → +800 °C Level gauge diameter: 1.5 or 3 mm Level gauge length (EL): 100/200/300/500 mm Thermocouple: NiCr-Ni, type K Temperature range: -200°C → +1150°C Level gauge diameter: 1.5 or 3 mm Level gauge length (EL): 100/200/300/500 mm
New items
282-1N-3-0500M, Electrotherm

282-1N-3-0500M, Electrotherm

The Electrotherm bendable sheathed thermocouple has mini or standard plug and implementation of the measuring point is insulated from sheath. Bending radius of the sheathed material is greater than equal to 5 x diameter d Sheathed material stainless steel
New items
294-1N-3-205-200, Electrotherm

294-1N-3-205-200, Electrotherm

The Electrotherm bendable sheathed thermocouple has thermoelectric lead and implementation of the measuring point is insulated from sheath. Bending radius of the sheathed material is greater than equal to 5 x diameter d Sheathed material stainless steel
New items
294-1J-3-350-500, Electrotherm

294-1J-3-350-500, Electrotherm

The Electrotherm bendable sheathed thermocouple has thermoelectric lead and implementation of the measuring point is insulated from sheath. Bending radius of the sheathed material is greater than equal to 5 x diameter d Sheathed material stainless steel
New items
294-1K-1.5-350-200, Electrotherm

294-1K-1.5-350-200, Electrotherm

The Electrotherm bendable sheathed thermocouple has thermoelectric lead and implementation of the measuring point is insulated from sheath. Bending radius of the sheathed material is greater than equal to 5 x diameter d Sheathed material stainless steel
New items
294-1K-1.5-350-500, Electrotherm

294-1K-1.5-350-500, Electrotherm

The Electrotherm bendable sheathed thermocouple has thermoelectric lead and implementation of the measuring point is insulated from sheath. Bending radius of the sheathed material is greater than equal to 5 x diameter d Sheathed material stainless steel
New items
K7T-1K-100-350-G1/4, Electrotherm

K7T-1K-100-350-G1/4, Electrotherm

The Electrotherm cable sensor is cable resistance thermometer used for thermal measurement application. Protective tube material stainless steel Cable length 2500 mm
New items
NTC030HP00, Carel

NTC030HP00, Carel

Carel Probe Carel NTC probes are supplied in a plastic sheath with 6mm diameter, they are suitable for a variety of industrial applications. Designed to accompany a variety of Carel & Tempatron controllers 6 x 15mm IP67 plastic sheath 3m lead length Note Thermocouples must have a direct termination to the temperature controller and not joined, unless the correct compensating cable is used Carel Easy Series
FAQs
We offer free shipping for orders over £200 if delivery is in the UK. All other orders in the UK, shipping from £7.99 depending on the weight and measurement. Mainland Europe shipping charges start from £25. For all other countries shipping charges start from £50 for products like Thermocouples and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding Thermocouples or any other product.
This depends on the Thermocouples individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for Thermocouples and all other products.
UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including Thermocouples.
Yes. We keep updating our stock frequently and if a product like Thermocouples is not in stock then we will let you know.