W A T L O W
63
Thermocouples
Mineral Insulated
Watlow’s mineral insulated thermocouples are fast-responding,
durable, and capable of handling
high temperatures.
These thermocouples are manufactured with best-in-class
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.
The XACTPAK protecting sheath and
compacted insulation outperforms
bare wire thermocouples in most
applications.
Performance Capabilities
• Easily handles temperatures up
to 1200°C (2200°F)
• Meets or exceeds initial calibration
tolerances per ASTM E 230
Features and Benefits
Special mineral insulation
• Protects thermocouple from
moisture and thermal shock
• Permits operation in high
temperature, high pressure
environments
Diameters as small as 0.010 in.
(0.25 mm)
• Ideal when physical space or
extremely fast response are
critical
Flexibility of the XACTPAK
material
• Allows you to form and bend the
thermocouple, without risk of
cracking, to meet your design
requirements
Outer sheath
• Protects the wires from oxidation
and hostile environments
Wide range of sheath materials,
diameters, and calibrations
• Meet specific requirements
In-house manufacturing of
XACTPAK material
• Rigid quality control procedures
• Assures high standards are met
• Single source reliability
Custom capabilities
• Include options such as special
lead lengths, lead wires and
terminations
Applications
• Heat treating
• Furnaces/kilns
• Turbines
• Bearing temperature
• Power stations
• Steam generators
• Diesel engines
• Nuclear reactors
• Atomic research
• Jet engines and test cells
• Rocket engines
• Semiconductor manufacturing
• Refineries/oil processing
• Catalytic reformers
• Food processing
Thermocouples