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Paragon Flame scanner. Combined Flame detection and flame temperature pyrometer

The Fireye Paragon, type 105F1-1 flame scanner is a microprocessor based flame analysis device utilizing solid state flame detection sensors. The Paragon scanner provides high integrity sensing of multiple flame properties, including Amplitude, Flicker Frequency and Flame Learned vs. Stored Curve Fitting. Combinations of these measured properties are utilized to provide superb discrimina- tion in a multiple burner, multi flame application as well as monitoring of flame performance charac- teristics such as peak flame temperature.

The Paragon scanners incorporate three internal flame relays for customer BMS interface, eliminat- ing the need for a remote amplifier. Relay one signals the presence or absence of flame and responds to automatically set ON/OFF thresholds. Relay two signals internal faults as detected within the scanner by internal self diagnostics. Relay three signals flame temperature is above or below adjust- able user designated values. The flame and fault relay must be connected to the BMS to provide ade- quate safety monitoring of the flame presence. The temperature relay can be used for alarming or signaling or can be connected to the BMS for remote monitoring.

For accurate detection of flame presence, Paragon scanners monitor the amplitude of the modulation (the flame "flicker") that occurs within the targeted flame, over a wide frequency. During the scanner setup procedure, the amplitude of the target flame over time is automatically stored by the flame scanner, together with algorithms for optimum ON/OFF criteria. Fast Fourier Transform algorithms within the product determine and monitor the flicker frequencies of the flame and constantly com- pare stored and real time information. The combination of these multiple tests provides the perfect balance between reliable availability and operational safety.




Mainly power generation


This industrial flame detector performs like no other on the market. The paragon is an optical Pyrometer and flame scanner combined.

By monitoring flame temperature this scanner can give vital indications of thermal NOx formations before alarms are triggered by exhaust gas analysers.

This scanner can also aid in the even distribution of fuel to PF burners and help in commissioning over fired air / staged combustion systems.


• Dual IR Solid state Cells
• Built in Pyrometer for measuring flame temperature
• 1 X SPDT Flame on relay
• 1 X SPST Flame temperature relay
• 1 x 4-20mA output flame temperature
• LED display for flame quality and temp
• Can be used with Fireye Explorer SCADA
• Extended operating temp range can be cooled with water or compressed air.
• Available in Zone 1 / 21 enclosure

Technical Manual (CU-108)

Junction Box

Quick Disconnect Cable

Paragon Explorer Lite

Fireye Explorer SCADA Software