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Electronic Ultraviolet Flame Detector


Electronic Ultraviolet Flame Detector

This product is no longer available for purchase.

  • Product Info
  • Literature


The Solid State Ultraviolet Flame Detectors, sense ultraviolet radiation emitted by combustion flames. The flame detectors are used with Honeywell flame safeguard controls to provide flame supervision for gas, oil, or combination gas-oil burners.


  • Properly installed the flame detectors are pressure rated for 5 psi.
  • Flame detector is used with only the R7851B Flame Amplifier and the 7800 SERIES controls.
  • Has an integral collar threaded (internal 1/2-14 NPSM) for mounting on a one-half inch sight pipe.

Product Specifications

Gas, Oil, or combination burners-intermittent operation only(burner cycled at least once each 24 hours).
Dimensions (in.)
1 in. diameter x 3 3/4 in. long
Dimensions (mm)
25 mm diameter x 95 mm long
Used With
Flame Amplifiers: R7851B
Detects ultraviolet radiation in flames
1/2 in NPT pipe mounting
Approvals, Underwriters Laboratories Inc.
Component Recognized: File No. MP268
Approvals, Canadian Standards Association
Report 158158
Electrical Connections
2 NEC Class 1 lead wires
Approvals, Swiss RE
Approvals, Factory Mutual
Approved: Report No. 3011020
Ambient Temperature Range (F)
-40F to +200F
Ambient Temperature Range (C)
-40 C to +93 C
NEMA Rating
Lead Length (in.)
96 in.
Lead Length (mm)
2438 mm