What is an MI-cable?
Mineral Insulated (= MI) cables are bendable metal tubes with wires and mineral insulation inside. Used with RTD sensors the MI cable has copper wires and with TC sensor the wire materials are according to the TC type. The mineral insulation in form of oxide powder is closely packed around the wires inside the tube, which can be made of stainless steel or e.g. Inconel. These materials and this construction give a unique temperature range to be applied in various measuring solutions.