The Fox 2nd generation DDC-Sensor™ is a new state-of-the-art sensor technology used exclusively in the Fox Models FT1, FT4A & FT4X Thermal Gas Flow Meters. The DDC-Sensor™, a Direct Digitally Controlled sensor, is unlike other thermal flow sensors available on the market. Instead of using traditional analog circuitry, the DDC-Sensor™ is interfaced directly to the meter's microprocessor for more speed and programmability.
Fox’s unique DDC-Sensor™ provides a technology platform for calculating accurate gas correlations. The correlation algorithms allow the meter to be calibrated on a single gas in the factory while providing the user the ability to select other gases in the Gas-SelectX® gas menu(s).
Competitors' sensors utilize fragile, cantilevered (only welded at one end) elements, whereas the sensor elements of the DDC-Sensor™ are welded to the sensor window at both ends for extra stability and strength. This enhanced design eliminates the sensor element vibration - found most often at high flow rates - which can potentially lead to metal fatigue and failure.
The sensor elements are in direct contact with the process flow. In applications where slag, ice or other foreign particles are traveling down the pipe, cantilevered elements are subject to damage requiring factory repair. The Fox 2nd generation non-cantilevered sensor design is much more rugged and robust.
Fox Models FT1, FT4A & FT4X, with their DDC-Sensor™ and state-of-the-art correlation algorithms provide an accurate, multi-gas-capable thermal gas flow meter.