25SU3-5166 Fireye Flame Amplifier

Overview

The Fireye 25SU3-5166 is a professional-grade analog flame safeguard amplifier designed for industrial and utility combustion applications. It works to confirm the presence or absence of a flame, providing reliable ignition and flame failure protection. The 5166 model is specifically engineered with a high-discrimination (low sensitivity) amplifier module, which allows it to distinguish between a specific burner flame and background radiation or noise. This makes it ideal for complex multi-burner environments where precise flame supervision is critical to prevent hazardous conditions and nuisance shutdowns.

Features

• High-discrimination flame detection for accurate signal processing in high-interference environments
• Dual voltage compatibility for flexible installation in 120V or 230V systems
• Analog flame signal processing with two independent gain settings for fine-tuning
• Supports monitoring of up to two compatible Fireye flame scanners
• Selectable Flame Failure Response Time (FFRT) of 1, 2, or 3 seconds
• Integrated 0-3 VDC flame signal strength test jacks for easier maintenance and setup
• Surface-mount design compatible with standard Fireye wiring bases and rack-mounted systems
• Self-checking capability when used with appropriate Fireye self-checking scanners

Specifications

• Supply Voltage: 120 VAC / 230 VAC (+10%, -15%), 50/60 Hz
• Power Consumption: 13 VA (with one scanner); 20 VA (with two scanners and remote meter)
• Flame Relay Output: DPDT, 125 VA Pilot Duty at 230V
• Operating Temperature: 0 degree C to 60 degree C (32 degree F to 140 degree F)
• Storage Temperature: -40 degree C to 85 degree C (-40 degree F to 185 degree F)
• Humidity: Maximum 85% relative humidity, non-condensing
• Shipping Weight: Approximately 2.7 kg (6 lbs)
• Component Parts: Consists of 60-2203-2 chassis, 60-2207-2 amplifier module, and 60-2301 mounting base

Applications

The 25SU3-5166 is designed for use in industrial and utility burner management systems where precise flame monitoring is essential. It is typically employed in large-scale boilers, furnaces, and ovens that utilize gas or oil fuels. Due to its high discrimination, it is particularly suited for applications with multiple burners where it must filter out background IR/UV interference from adjacent flames. It is compatible with Fireye flame scanner models 45UV5, 45RM1, 45RM2, 45RM4, 45FS1, and 45UVFS1.