Honeywell RA890F Flame Safeguard Relay

Honeywell RA890F Flame Safeguard Relay is a nonprogramming, amplifying relay that provides solid state electronic flame safeguard protection for industrial and commercial gas, oil or combination gas-oil burners.

Features:

• Employs rectification principle of electronic flame detection using a flame rod, rectifying photocell or C7012A,C Ultraviolet Flame Detector
• Clipping pilot link jumper wire permits use with standing pilots
• Can be directly replace RA890E and mount on same Q270A Subbase
• Solid state circuitry eliminates vacuum tube replacement and increases resistance to vibration. Power application not required during Off cycle; no tube to warm up before starting
• Push to reset safety switch in dust resistant enclosure
• Built-in protection against ignition crossover in flame rod systems
• Does not start if flame-simulating failure occurs
• Automatic safety shutdown if flame fails on start or if flame is not re-established after failure
• Flame signal current is directly measurable at test jack
• Line or 24 volt, automatic or manual controller can be used
• Captive mounting screws allow easy mounting and removal
• Optional alarm circuit indicates safety shutdown