FLAME RELAY / Ionization Flame Detector - 600-IFD-140-SRS SIL 2 Flame Relay

Ionization module, compact version year 2012, color bar graphic, alarm contacts Front side of the element
Front side of the element
Front side of the element
Front side of the element
600-IFD-140-SRS SIL 2 Flame Relay - Data sheet - Download600-IFD-140-SRS SIL 2 Flame Relay - Data sheet - Download 600-IFD-140-SRS - Operating and maintenance manual - Download600-IFD-140-SRS - Operating and maintenance manual - Download SIL 2 - Third Part - Certificate downloadSIL 2 - Third Part - Certificate download


The 600-IFD-140-SRS, new version of 600-IFD-140J, is a SIL2 flame ionization monitor and control relay which operates in the rectification mode. An isolated current limited 230VAC 50Hz a. c. supply is applied between the flame rod and the burner or pilot pipe (ground connected). In the absence of flame the resistance between the rod and the ground has a high value, therefore no current flows.
In the presence of a flame, the area of ionized gas around the rod presents a lower impedence allowing a small current to flow. This current will have a d.c. content which is related to the ratio of rod to ground area. The 600-IFD-140-SRS monitors this small current, displays its d.c. value on a 10 color segments bar graph and operates a relay when the current excees 2µA (flame present relay). Both relays have volt free change over contacts that are available for the user.


  • Flame ionization detection module
  • SIL2 certified - the output safety function includes the series of the contacts of the internal relays
  • Power supply: 115VAC or 230/240VAC 50Hz/60Hz 15VA
  • Degree of protection: IP20
  • Voltage selector switch: on printed circuit
  • Input: From any ionization rod
  • Display: 10 color segment LED bar graph scaled 0-5µA 
  • Signalation: 1st bar graph led lit = power on
  • 4 segments of bar graph lit = "flame on"
  • Operation distance: up to 100 meters from pilot to IFD
  • Flame present contact: Two NO contacts for flame status (Flame on/off)
  • Contact rating: 8A at 28VAC, 8A at 30VDC
  • 0.5A at 120VAC, resistive load
  • Flame Failure Response Time (FFRT) EN 298:2012
    0 second (suggested for gas burners)
    3 seconds (suggested for oil burners)
  • Dimensions: 45x75x110mm
  • Weight: 250g
  • Operating temp.: -40°C to +85°C