Flame sensor with optic system
June 2011
Sensors & Transducers
Durag’s D-LE 701 is a self-monitoring and failsafe flame sensor with a fibre-optic connection in conjunction with a control unit/burner control.
It is designed to monitor gas, oil and coal flames and can be connected to the D-UG 120, D-UG 660 control unit and the D-GF 150 burner control. Typical applications include burners where installation conditions would be difficult for conventional flame sensors or those where the environmental temperature near the sighting tube is too high. It is ideal for use in power stations, chemical plants, refineries, cement plants, waste incinerators, steam generators and heating plants.
The fibre-optic system may be integrated directly into the hot area of the burner. It transfers the radiation from the flame, over a fibre-optic bundle, to the flame sensor installed outside the burner. It is available in different lengths.
The photo element in the flame sensor generates a signal which is proportional to the flame radiation intensity. The output signal of the flame sensor is used as an input signal to a control unit or a burner control. With a spectral range from UV to IR, the D-LE 701 is adjustable to different combustion technologies such as exhaust gas recirculation.
For more information contact Colwyn Savings, OEN Enterprises, +27 (0)11 675 4447, [email protected], www.oenenterprises.co.za
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