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Sensors/MEMS??

Controllers with enhanced features

Posted: 23 Mar 2005 ?? ?Print Version ?Bookmark and Share

Keywords:selco? ecc? 2698? 2699? cold/hot controller?

Selco/ECC's new 2698 and 2699 cold/hot controllers offer enhanced functions for sensing and control of heating, cooling and humidity in a variety of products such as spas, cooking equipment, freezers, refrigerators and dehumidifiers. These cost-competitive devices can replace traditional bulb and capillary thermostats for designs that require high precision temperature and time control, and/or temperature reading display capabilities.

The new electronic controllers feature a number of enhanced control options including two- or four-digit pushbutton display panels, bi-color LED indication, and options for user panel remote control and user adjustment of differential. Incorporating microprocessor-based technology, these controllers provide excellent performance accuracy, repeatability and stability.

The new Model 2698 electronic cold/hot controller is designed for ON/OFF cooling control for temperatures between 40C to 10C, or cooling control for temperatures between 0 to -140C. In the cooling mode, the 2698 or 2699 optimizes precise time/temperature control by providing user settable lock-out time and minimum run time. Output choices include a SPST/SPDT relay rated at 10-, 15- or 30A.

The new Model 2699 electronic cold/hot controller is designed for ON/OFF temperature and humidity control and features up to three outputs with multiple relays, or alternately, offers the ability to drive an external solid-state relay. The additional outputs can be programmed to drive a fan, lights, defrost heater or damper. Model 2699 also includes programmable LED indication in addition to its standard bi-color LED feature and optional remote digital display control.

For maximum versatility, users can select from several input options including Selco/ECC's solid state transformer with a wide power input range from 75Vac to 305Vac, 50Hz/60Hz; a standard transformer power input from 115Vac or 230Vac, with Class 2 isolation. The device also includes an onboard POT and connector that can optionally be used for an external linear 0 to 5V input signal such as temperature, humidity or pressure.

- Gina Roos

eeProductCenter




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