Furnaces, Kilns, Ovens, Lehrs
and Thermal Oxidizers
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Temperature and Atmosphere Control in Furnaces and Kilns

  • Customized operator interface
  • Gas train on shuttle kiln
  • 3 phase SCR power controller
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For accurate control of the process temperature without constant operator involvement, all industrial thermal process relay upon a controller. The controller gets its inputs from contact temperature sensors like thermocouple, RTD or from a non-contact temperature sensor like an infrared temperature sensor. The controller transmits an electrical signal (current or voltage) to a power switch device which can be a simple relay, a solid state relay or a Silicone Controlled Rectifier (SCR).

Microprocessor control (or PID controller) is a generic term for a control feedback mechanism used in all our thermal control systems. A PID controller attempts to correct the error between a measured process temperature and a desired set point by calculating and then outputting a corrective action that can adjust the process accordingly.


Today, there are more process control options than ever before. It can be difficult to identify those that are the most appropriate for your needs, especially when so many controls now include advanced features that can further complicate the selection process.

Some factories now use Supervisory Control and Data Acquisition (SCADA) and Distributed Control Systems (DCS) hardware and software to provide managers with real-time information on work-in-process, enabling important manufacturing decisions to be made with improved speed and accuracy. When new factory equipment is integrated with such a system, communications compatibility becomes a key issue.

Keith is also a UL panel shop that builds control panels for every process control system.