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Miniature Thermocouples with Miniature Jack

Miniature Thermocouple - Miniature Thermocouple with Miniature Jack

  • High integrity construction suited to arduous operating conditions at temperatures from -330°F to 2300°F (-200ºC to +1250ºC). The maximum operating temperature is dependant on diameter and environmental factors, further guidance is available here.
  • Custom built to your specification and terminated in a choice of miniature thermocouple jacks rated to 425°F, 660°F or 1200°F (220ºC, 350ºC or 650ºC)
  • Alternatively, we have a large range of sensors available to buy online in various diameters and lengths
  • High accuracy and stability maintained throughout the operating life of the sensor
  • Fast response and high insulation resistance
  • Available in thermocouple types K, T, J, N, E, R, S & B with sheath diameters from 0.010" to 0.040" and lengths from a few inches to hundreds of feet dependent on the sheath diameter selected
  • See detailed information on how a thermocouple works

Miniature Thermocouple Enquiry Form

1a. Thermocouple Type
1b. Tolerance Class
2. Sheath Material
3. Sheath Diameter
4. Sheath Length
 inches
5. Types of Sensing Junction

Illustration Select
INSULATED Junction
GROUNDED Junction
EXPOSED Junction
Duplex Element Required? (please tick box)
Triplex Element Required? (please tick box)
6. Miniature Jack Style

Illustration Select
3P7M - Miniature Jack
Plastic, rated to 425°F/220ºC (normal)
3P7MH - Miniature Jack
Plastic, rated to 570°F/300ºC
3P7MC - Miniature Jack
Ceramic - rated to 1110°F/600ºC
7. Optional Compression Fitting
8. Quantity Required

Contact Details

Company Name


Your Name


Email


Telephone


Additional Information

If your enquiry is for more than one style of sensor, please email us with your requirements or use the box below



Send Enquiry  
See our full range of thermocouple probes

Frequently Asked Questions

  • What is a thermocouple and how does it work?
    A thermocouple is a type of temperature sensor that generates a voltage when two different metals are joined at one end and exposed to a temperature difference between the "hot" junction (where the temperature is measured) and the "cold" junction (the reference point). This voltage is then measured to determine the temperature at the hot junction.
  • How do I choose the right thermocouple for my application?
    The ideal thermocouple depends on factors such as temperature range, accuracy, termination type, mounting requirements and environmental conditions. We offer a variety of thermocouples with different sheath materials, constructions, terminations, and temperature ratings to meet your needs. If you need specific advice, our engineers are happy to assist!
  • What is the maximum temperature rating of your thermocouples?
    Our thermocouples are designed to handle a wide range of temperatures with some mineral insulated thermocouples able to withstand temperatures up to 2300ºF and ceramic sheathed thermocouples going even higher to 2900ºF. Each product listing includes the maximum temperature rating, so you can choose the best thermocouple for your application.

1 Thermocouple Type Temperature Range (continuous) Temperature Range
(short term)
K Nickel Chromium vs
Nickel Aluminium
32°F to +2010°F -290°F to +2460°F
T Copper vs Constantan -300°F to +570°F -420°F to +750°F
J Iron vs Constantan +68°F to +1290°F -290°F to +1380°F
N Nicrosil vs Nisil 32°F to +2010°F -450°F to +2370°F
E Nickel Chromium vs Constantan 32°F to +1470°F -40°F to +1650°F
R Platinum - 13% Rhodium vs
Platinum
32°F to +2820°F -60°F to +3180°F
S Platinum - 10% Rhodium vs
Platinum
32°F to +2910°F -60°F to +3090°F
B Platinum - 30% Rhodium vs
Platinum 6% Rhodium
+212°F to +2910°F +212°F to +3310°F
Temperature ranges refer to the thermocouple type.
The temperature range of the sensor may deviate from the above,
please refer to the product description for more details
2 Sheath Material Max.
Temperature
Standard Sheath Materials
321

321 Stainless Steel

800°C
316L

316L Stainless Steel

800°C
310 310 Stainless Steel 1100°C
600 Inconel 600 1100°C
114 Nicrotherm DTM 1250°C

INSULATED
Hot junction insulated from sheath. Gives floating output with typical insulation resistance in excess of 100 megohms

GROUNDED
Hot junction welded to sheath tip giving earthed output and faster response to temperature changes

EXPOSED
Fastest response mainly for the measurement of air temperature in ducts. Restricted to a maximum operating temperature of 1110°F