Continuous Linear Thermal Sensor is a small-diameter coaxial wire which is capable of sensing temperature changes along its entire length. The sensor is constructed of a center conductor and an outer Inconel 625 sheath. The center conductor is electrically insulated from the outer sheath by a ceramic thermistor material. Control Panel, the 9090 sensor can have multiple independent adjustable fixed temperature set points, become a rate of rise detector, identify the location of a hot spot, supply a constant temperature readout during a fire incident and be used as a temperature measuring device for process control. The Alison Control 9090 series Thermal Sensor should not be confused with fixed-temperature open circuit devices which close only when a predetermined temperature or rate of temperature rise is reached.
Shorter lengths are available on special order.
It is also possible to assemble several lengths having different temperature ranges so that hazards with different ambient temperature or heat conditions can be protected economically with a single length of sensor. The 9090 sensor has been exposed to radiation levels as high as 200 megarads and has been certified by an outside testing laboratory to meet the requirements of IEEE 323 and 344. 1998 Alison Control Inc. All rights reserved.