In accordance with EN298:2012-11, the BFR11 flame sensor is intended for burner control systems that check for a presence of a flame signal after a control shutdown. The UV tube ensures that the background radiation, for example, from glowing brick linings or mixing equipment parts, is not detected. The internal boost of the UV tube voltage immediately after applying the supply voltage ensures the safety requirement according to EN298:2012-11 for checking the UV tube for burn through for intermittent burner operation.
Technical Data
- Input: 120 VAC; 50/60 Hz; 5.5 mA (consumption)
- Refuse: 1 A, slow
- Restart Time: >5 seconds (between burner shut down and renewed start-up)
- Optical Features: Spectral range 185 to 260 mm; Acceptable loss of flame signal ca. 200ms
- Adjustment: Radial, Left
- Operating Lifetime: >10,000 hours
- Operating Temperature: 0° to 140°F (-17.8° to 60°C)
- Temperature >120°F reduces lifetime of UV-tube
- Humidity: Maximum 95%, no condensation permitted
- Protection: IP 65
- FET-Output:
- Switch-On delay (after flame-On): 0.5 seconds
- Switch-Off delay (after flame-off): <0.5 seconds
- Maximum switched: 15 mA; 0.3 W; 280VAC/400VDC
Agency Listing: UL
