The Series 100 Thermal Conductivity Detector GC uses four sensing
elements that are connected to form an electrical Wheatstone bridge
circuit. These elements are miniature rhenium-tungsten filaments, which
are mounted in a metallic cell block. A flow through type thermal
conductivity cell is normally used in this analyser.
A diffusion type detector may also be fitted. This cell contains a
sample and reference gas flow geometry. Two elements are installed in
each flow system. An electrical current from a regulated power source
heats the elements. Changes in thermal conductivity of the sample gas
result in an output voltage change.
We work closely with each client in order to ensure that all aspects
of the application are understood. Then our applications design team
will design a solution specifically with the application in mind. All
our systems can be designed for corrosive applications and are
manufactured with corrosion resistance materials.