Product Overview

The FIREYE 25SU3 – 2000 is a highly advanced and reliable rack – mounted flame safeguard amplifier, playing a pivotal role in industrial combustion control systems. Engineered by FIREYE, a renowned leader in flame monitoring and combustion management solutions, this amplifier is designed to ensure the safe and efficient operation of burners in a wide array of industrial applications, including power generation plants, chemical processing facilities, and industrial boilers.

The 25SU3 – 2000 serves as a crucial interface between flame scanners and the overall combustion control system. It processes signals received from flame scanners, such as those in the Phoenix Series or other compatible models, and uses this information to make critical decisions regarding the burner’s operation. By accurately analyzing the flame signals, the amplifier can determine the presence or absence of a stable flame, and in the event of a flame failure or anomaly, it can quickly trigger safety mechanisms to prevent hazardous situations.

Technical Specifications

Parameter	Value
Product Model	25SU3 – 2000
Manufacturer	FIREYE
Product Type	Rack – Mounted Flame Safeguard Amplifier
Power Supply Voltage	120 VAC or 24 VAC/24 VDC (depending on configuration)
Input Signals	Compatible with signals from two independent flame scanners
Outputs	One Form C SPDT marginal alarm relay, one fused DPDT Form C flame relay, one 4 – 20 mA analog output for measuring scalable flame signal
Adjustable Parameters	Flame relay pull – in and drop – out thresholds, flame failure response time (FFRT) from 1 to 6 seconds, independent flame relay delay on time from 0 to 10 seconds
Display	Eight – character alpha – numeric display
Mounting	Rack – mounted for easy integration into standard industrial control panels
Dimensions	Designed to fit standard 19 – inch racks
Weight	Shipping weight is approximately 2 kg
Operating Temperature Range	– 40 °C to 60 °C (- 40 °F to 140 °F), suitable for harsh industrial environments
Communication Capability	Remote communications with a PLC (programmable logic controller), details available upon consulting the factory

Precise Signal Analysis and Control

The FIREYE 25SU3 – 2000 is equipped with advanced circuitry that can accurately analyze signals from two separate flame scanners. This dual – scanner compatibility allows for enhanced flame detection accuracy, as it can cross – reference signals and eliminate false alarms more effectively. The adjustable flame relay pull – in and drop – out thresholds enable fine – tuning of the amplifier’s response to flame signals. This means that operators can set the exact conditions under which the flame relay should activate or deactivate, ensuring that the burner’s operation is closely controlled based on the actual flame conditions.

Quick and Reliable Safety Response

With an adjustable flame failure response time (FFRT) ranging from 1 to 6 seconds, the 25SU3 – 2000 ensures that any flame – related issues are addressed promptly. In the event of a flame failure, the amplifier quickly activates the safety relays. The fused DPDT Form C flame relay can shut down the fuel supply to the burner, preventing the accumulation of unburned fuel and potential explosions. The marginal alarm relay can also be used to trigger additional safety measures, such as sounding an alarm or notifying operators of a potential problem before it escalates.

User – Friendly Interface

The amplifier features a keypad entry system, making it easy for operators to input and adjust various settings. Password protection is provided to prevent unauthorized changes to the user – set (programmed) parameters. This ensures that the amplifier’s settings remain stable and that only authorized personnel can make adjustments. The eight – character alpha – numeric display provides clear and detailed information about the flame signal strength, the status of the relays, and other important operational data. Additionally, the front – panel LED status indicators offer a quick visual overview of the amplifier’s current state, such as whether the flame is present, if there are any alarms, or if the unit is in a normal operating mode.

Versatile Compatibility

The 25SU3 – 2000 is designed to work seamlessly with a wide range of FIREYE flame scanners, including both UV (ultraviolet) and IR (infrared) models. This versatility allows for greater flexibility in system design and integration. Whether used in a new installation or as a retrofit in an existing combustion system, the amplifier can be easily paired with compatible scanners to enhance the overall flame – monitoring capabilities. Its compatibility with different scanner types also makes it suitable for various industrial applications, as different burners and combustion processes may require specific types of flame detection.

4 – 20 mA Analog Output

The inclusion of a 4 – 20 mA analog output is a valuable feature of the 25SU3 – 2000. This output can be used to measure the scalable flame signal strength. By providing a proportional electrical signal based on the flame’s intensity, it allows for easy integration with other control systems, such as PLCs or data acquisition systems. This enables operators to monitor and record the flame signal strength over time, which can be useful for process optimization, predictive maintenance, and ensuring compliance with safety and environmental regulations.

Remote Communication Capability

The 25SU3 – 2000 offers the option for remote communication with a PLC. This feature allows for centralized control and monitoring of the combustion system. Operators can access the amplifier’s status, adjust settings, and receive real – time alerts from a remote location. This is particularly beneficial in large industrial facilities where multiple burners and combustion systems need to be managed efficiently. By enabling remote communication, it reduces the need for on – site personnel to physically check each amplifier, saving time and improving overall operational efficiency.

Related Models

We stand behind the FIREYE 25SU3 – 2000 with a comprehensive warranty, ensuring our customers’ confidence in its performance and durability. Our pre – sales team is available to offer in – depth technical advice, helping you determine the best configuration for your specific industrial application. After – sales, our support team can assist with installation guidance, troubleshooting, and any other concerns you may have. If you cannot find the exact model or configuration you need, please contact us immediately. We are committed to helping you find the best FIREYE solution for your industrial combustion control requirements. The FIREYE 25SU3 – 2000 is widely used in industrial boilers, waste incinerators, and chemical processing furnaces, where it acts as a critical link in ensuring the safe and efficient operation of the combustion process.