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The InSight Series 4 scanners utilize advanced techniques for discrimination and integrate the flame detection, amplification, safety determination and flame switch functions into a single detection head.

InSight Series 4 incorporates the superior detection and discrimination elements of the popular InSight II product with some enhanced features.

The scanner measures the amplitude of the modulations (the flame “flicker”) that occur within the targeted flame. During the scanner set-up procedure, the modulation frequency that yields the best flame ON/OFF discrimination is selected. The appropriate modulation frequency and sensor gain can be either manually or automatically selected.


  • Solid state dual UV or IR sensors
  • Flame relay
  • Fault relay
  • 4-20mA outputs
  • Four memory files
  • Auto or manual configuration
  • SIL 3 certified