FLAME RELAY / Ionization Flame Detector - 600-IFD-140J

Ionization flame detector module loose 
600-IFD-140J - Data sheet - Download600-IFD-140J - Data sheet - Download


The 600-IFD-140J is a flame ionization monitor and control relay which operates in the rectification mode. An isolated current limited 230V 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-140J monitors this small current, displays its d.c. value on a 10 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.
- Housing on back panel installation

Pieces available only as spare parts until 2015


  • Flame control relay, plug-in type
  • Power supply: 115 or 230V 50/60Hz 20 VA
  • Voltage selector switch: included in the printed circuit
  • Input: from any flame rod
  • Excitation voltage: 230VAC isolated and current limited
  • Display (visible under window): 10
    segment LED bar graph scaled 0-5µA, flame is on when four segments of the bar graph are lit 
  • Power on signal: first bar graph led is on when power is on
  • Rod fault signal: last bar graph is lit, for rod shorted
  • Flame present contact: one SPDT contact
  • Contact rating: 1A at 28VDC, 0,5A at
    120VAC resistive load, gold plated
  • Flame failure response time: less than 1 second
  • Dimensions: 52x112x106mm 
  • Weight: 380g