Overview: Mineral-Insulated (M.I.) resistance thermometers are designed with Platinum-measuring resistors Pt100 Ω compliant with DIN IEC 751 standards. These thermometers are encased in a stainless steel sheath filled with inert mineral powder (MgO) for protection and durability, making them suitable for environments requiring fast response, reduced space, and vibration resistance. They can be equipped with either a fixed cable or a special plug for easy installation or replacement.

Application Guidelines: The specified temperatures are valid for clean air. At higher temperatures, especially with cyclic loads, the sheath may degrade. Aggressive media can attack the sheath material, and smaller diameter sensors have reduced lifespans at high temperatures. Applications include chemical engineering, petrochemistry, food and beverage, and more.

Reaction Time: The reaction time varies with the medium and sheath diameter. For example, a 3 mm diameter sheath has a reaction time of 1.5 seconds in water at 0.2 m/s and 26 seconds in air at 2.0 m/s.

Special Considerations: M.I. thermometers can be bent at a radius five times the sheath diameter, but bending should be avoided within 60 mm of the probe tip.

Ordering Information: Assemblies are custom-made based on specifications. Options include sheath diameter, measuring range, connection type, and cable length. Accessories such as adjustable compression fittings and connectors are available.