The Watlow AT style mineral insulated thermocouple for use with thermowells is an energy and process
temperature sensor that features XACTPAK metal-sheathed mineral insulation, enhancing the sensor’s
ability to “read” temperature by transferring heat quickly to the measuring junction.
The Watlow AT style mineral insulated thermocouple is ideal for process petrochemical and power applications
where a sensor-thermowell assembly is typically used. Thermowells protect the thermocouple and allow
replacement of the sensor without shutting down the process, saving valuable downtime.
Watlow mineral insulated thermocouples are fast-responding, durable and capable of handling higher
temperatures.
Watlow mineral insulated thermocouples are manufactured with XACTPAK®, Watlow’s trademark for metal
-sheathed, mineral insulated (MI) thermocouple material. XACTPAK responds fast because the protective
metal outer sheath allows the use of smaller diameter thermocouple conductors. The rock hard compacted
MgO insulation further enhances the sensor’s ability to “read” temperature by transferring heat quickly to
the measuring junction.
Watlow mineral insulated thermocouples’ XACTPAK protecting sheath and compacted insulation outperforms
bare wire thermocouples in most applications.
