Mineral insulated thermocouples
Mineral insulated thermocouples
B+B offers our mineral-insulated thermocouples (also called MITs) in various versions. We offer these mineral-insulated thermocouples with two different connectors: the standard connector (DIN EN 50212) and the miniature connector (DIN EN 50212). This product can also be configured with a 2m silicone cable or with free ends. Another version is available with a Lemo connector (Series 1S, 2-pin).
Features
In a mineral insulated thermocouple, the thermocouple wires of the selected thermocouple type lie in a metallic tube (sheath) and are insulated from each other and against the sheath with highly compressed ceramic powder. Due to the manufacturing process, these mineral insulated thermocouple cables can be bent down to a bending radius of up to 5 times the sheath diameter. Due to the mineral insulation, the operating conditions of mineral insulated thermocouples are only limited by the thermocouple types themselves and the material of the sheath. For example, a mineral insulated thermocouple (MITC) type K with an inconel 600 sheath of diameter 3.0 mm can be operated up to 1200 °C. Available diameters for MITCs are 0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm, 4.5 mm and 6.0 mm. Other customer-specific diameters are available on request.
MITCs can be assembled on the connection side either with a directly connected connector or with a thermocouple extension or compensation cable. The connector contacts and wires of the thermocouple extension cables are generally made of thermocouple material, i.e. the same alloys as the thermocouple. Compensation cables use cores made of substitute alloys which have similar thermoelectric properties to the thermocouple alloys.
We offer various materials, but our standard material is INCONEL 600.
At B+B, you will find sheathed thermocouples with free ends, miniature plugs, standard plugs, Lemo couplings and silicone cables. Customised designs are available at any time.
Yes, customised designs are available on request. Please note that due to the planning and implementation costs involved, we can only produce customised designs for orders with a minimum value of €500.00.
Mineral insulated thermocouples are temperature sensors in which two different thermowires are embedded in a metal sheath. The wires are electrically insulated by compacted magnesium oxide and connected to each other at the measuring tip. Thanks to their robust, flexible design, mineral insulated thermocouples are bendable, vibration-resistant and suitable for high temperatures. The measuring principle of thermocouples is based on the Seebeck effect, in which a temperature-dependent thermoelectric voltage is generated at the junction of two different metals. This voltage is measured and converted into the corresponding temperature.