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General Purpose Thermocouples

Mineral Insulated Bayonet Thermocouple (Type 11A)

Suitable for plastics machinery and general purpose applications these assemblies are available in thermocouple types K, T, J, N and E with an industry standard one slot adjustable bayonet cap fitting. The fitting can be fine tuned for positioning on site and is suitable where several applications in your plant require individual positioning of the assembly. The sensor is mineral insulated with a diameter of 0.177" as standard but a 0.118" option is available and rated to 1470°F and can therefore be bent after installation for exact positioning. A choice of leads is available including stainless steel braided Wire or flexible stainless steel conduit. As with any mineral insulated thermocouple the junction can be grounded or insulated.

Enquiry Form

1. Thermocouple Type

2. Sheath Diameter

3. Sheath Length 'L1'


4. Wire Style

5. Wire Length 'L2'


6. Type of Sensing Junction

Illustration Select
Duplex Element Required? (please tick box)
Triplex Element Required? (please tick box)

7. Optional Thermocouple Plug

8. Quantity Required

Contact Details

Company Name

Your Name



Additional Information

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

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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
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

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

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