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FS-100 Integral Intelligent Flame Detector

FS-100 utilizes SMT technology which integrates a photoelectric sensor, a microprocessor, and a Human-Computer Interface (HCI) and an output interface together, sending out various outputs including an ON/OFF flame signal, a fault signal, a 4-20mA signal, and an RS-485 output (meets the MODBUS standard) via the quick connector.

Key Specifications

FS-100 utilizes SMT technology which integrates a photoelectric converter, microprocessor, and a Human-Computer Interaction (HCI) and outputs interface together, sending out ON/OFF flame signal, fault signal, the 4-20mA analogy output, and RS-485 interface signal (meets the MODBUS standard) via the quick connector. FS-100 is applicable to oil-fired and coal-fired burners, and is not only compact, but also easy to mount, debug, and maintain.


FS-100 is used to collect the flame signal which is amplified and processed to determine the presence or absence of flame. FS-100 Flame Detector gives the flame quality output in real-time - the basis of determining the presence or absence of flame.

Remote Communication with a number of FS-100 flame detectors uses an RS485 Interface to carry out communications with a computer running 100 Monitoring and Management Software.



Mechanical part
Ambient conditions
Housing materialdie-casting aluminumAmbient temperature:-20℃70℃
Housing weight1.8kgHumidity:0-95% relative humidity, no condensation
Installation methodscrew pointProtection level: NEMA 4X
DimensionsDiameter 89 mm max
overall length:199mm approx.
Electrical part
Power supply24VDC±10%,DC 0.35A
Analog output4mA20mA
Maximum load750Ω
Contact outputFlame relay; ON; Fault Relay;  NC
Contact Rating2A 30VDC, 2A 220VAC
DisplaySix-Character alphanumeric LED
Operator interfacefour pushbutton style keys
Cable specification12-pin quick-disconnect,
    -special cable;
    high-temperature resistance, flame-retardant shielded flexible
    -Max O.D.:9mm
VolumeStraight conduit installation method:5 SCFM
Excessive contaminants might require a flow up to 15 SCFM
Optical fiber installation method:15 SCFM
Tangential-fired boiler:15 SCFM



Flame Detector Angle

The observation angle and the burner centerline should be set at a small angle

(recommended 5- 10 degree), ensuring maximum monitoring of a flame's initial combustion zone, and obtaining the best observation effect.

图片3.pngStraight conduit installation method

It is a direct-view way to observe the target flame which is viewed through a straight conduit. This method is best suited for water-wall boilers and W-shape burners.

Optical fiber installation method

The target flame can be detected via the optical fiber transmission system with an adjustable observing angle. It's easy to install without installation space limitation. The observing method is applicable for all types of burners in coal-fired power plants.


• Self-checking

• Self-learning

• Alarm signal output available

• Integral and compact design – easy to locate and install

• Equipped with PTFE insulation material - improve the heat resistance and the durability of equipment

• Integrated with a high-performance photosensor

• Remote online tuning and parameters setting

• Able to store 8 sets of files - applicable to different load, different fuel and different combustion technology

• Use explosion-proof technology - suitable for special conditions

Industrial applications

• Power plant

• Petrochemical industry

• Metallurgical industry

• Cement industry

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