| DKW972/976 - Oil Burner Safety Control
For oil burners on Direct Air Heaters and for burners above 30 kg/h throughput for intermittend operation, with or without oil preheater, 1- or 2-stage, recycling and post-purge after loss of flame
Flame detection:
- Photoresistor MZ 770 S
- Infrared-flicker detector IRD 1010
- UV flame sensor UVD 970
The microprocessor- based programming sequence ensures extremely stable timings independent of voltage variations, ambient temperature and/or switch-on cycles. The built-in information system not only provides a continuous monitoring of the actual state of the box (very helpful especially for monitoring the start-up phase) but also informs about the cause of a possible lock out. The lock out cause is stored in such a way that it can be retrieved even after a power failure. The control box is designed for maximum safety in case of fluctuations in the voltage supply. If the mains voltage drops below the permitted level, operation is interrupted and the control box automatically prevents the start sequence from being repeated. In this way, the safety of the system is not put at risk by a drop in the mains voltage | 
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