Our Products Honeywell Maxon Combustion System Industrial Flame Monitoring
All-in-One Processor/Viewing Head

All-in-one integrated processor and viewing head solution.

1. U2 Series
The U2 Series is an all-in-one integrated processor and viewing head system which is uniquely suited for single or multi-burner, multi-fuel and difficult flame detection applications. The all-in-one solution eliminates the need for a separate processor which saves on cabinets and wiring. Multiple models and sensor options meet difficult flame monitoring applications requiring a high level of discrimination.


  • Integrated viewing head and signal processor.
  • Electronic check (no mechanical shutter) for self-check of the system.
  • Independent configuration and adjustable gain settings for each sensor.
  • Ten selectable flicker frequency filters for solid state UV and IR sensor (model dependent).
  • Fully programmable using touch screen interface with easy to follow scrolling menu structure.
  • Available in quick disconnect or PF versions with factory installed pigtail extension cable.
  • Modbus RS422 communication for use with FLAMETOOLS-PC or FLAMETOOLS-HMI/U supports 248 loops and 32 loops, respectively.

  • Input power: 22-26 VDC, 120 mA max.
  • Output relay contacts: one normally open flame relay and one normally open fault/self-check relay, 2A, 30 VDC or 250 VAC.
  • Ambient temperature: -40F to 158F (-40C to 70C).
  • Analog flame signal: 0-20 mA or 4-20 mA output.
  • Enclosure: IP66.
  • Adjustable flame on/off threshold.
  • Adjustable FFRT 1, 2, or 3 seconds.
  • 1" NPT mounting.
  • X-Ray and Gamma ray immune.
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