Flame Scanner/Detector for Burner Systems – Specifications & Verification

Product Specifications

Technical details and manufacturing context for Flame Scanner / Detector

Definition

A flame scanner/detector is a critical safety component used in burner systems to continuously monitor flame status. It employs optical or thermal sensing technologies to detect the presence, absence, or instability of a flame, thereby preventing the accumulation of unburned fuel and reducing the risk of explosions. The device typically consists of a stainless steel housing, a quartz glass lens, a photodiode or UV sensor, and associated electronic circuitry. It operates by detecting specific wavelengths of light, usually in the ultraviolet (UV) or infrared (IR) spectrum, or by sensing flame temperature via thermocouples or thermopiles. The sensor converts these signals into electrical outputs that are transmitted to the burner control system, enabling automatic shutdown or alarm activation when abnormal conditions are detected. Key parameters include a detection distance of 0.5 to 2.0 meters, response time of 0.1 to 1.0 seconds, spectral range of 190 to 380 nm, operating temperature range of -40 to 85°C, supply voltage of 24 V DC (±10%), power consumption of 3 to 5 watts, and an analog output signal of 4 to 20 mA. The housing is made of corrosion-resistant stainless steel (grade 316 per ASTM A240) and offers ingress protection rated IP65 to IP67 per IEC 60529. The device weighs between 0.5 and 1.5 kg, depending on the model and options. These specifications are reference ranges and must be verified with the legal manufacturer or supplier for the specific model and application. The flame scanner/detector is an essential part of combustion safety systems in industrial burners, boilers, and furnaces, ensuring safe and reliable operation.

Working Principle

The flame scanner/detector operates by continuously monitoring the flame using optical or thermal sensors. Optical sensors, such as photodiodes or UV sensors, detect specific wavelengths of light emitted by the flame, typically in the ultraviolet (190–380 nm) or infrared range. Thermal sensors, such as thermocouples or thermopiles, measure the flame's temperature. The sensor converts the detected signal into an electrical output, which is sent to the burner control system. This output indicates whether the flame is present, absent, or unstable, allowing the control system to take appropriate safety actions, such as shutting off the fuel supply or triggering an alarm.

Common Materials

Stainless steel housing, Quartz glass lens, Photodiode/UV sensor, Electronic circuitry

Technical Parameters

Parameter	Typical range	Notes & selection driver
Detection Distance	0.5–2.0 m	Maximum distance from flame to sensor
Response Time	0.1–1.0 s	Time to detect flame presence or loss
Spectral Range	190–380 nm	UV detection range
Operating Temperature	-40–85 °C	Ambient temperature range
Supply Voltage	24 ±10% V DC	Typical industrial supply
Power Consumption	3–5 W	Maximum power draw
Output Signal	4–20 mA	Analog output for flame intensity
Ingress Protection	IP65–IP67	Dust-tight and water-resistantIEC 60529
Housing Material	316 SS	Corrosion-resistant stainless steelASTM A240
Weight	0.5–1.5 kg	Depends on model and options

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Optical Lens Part
Focuses flame radiation onto the sensor element

Material: Quartz glass
Sensor Element
Converts flame radiation into electrical signals

Material: UV/IR photodiode or thermopile
Signal Processor
Amplifies and conditions sensor signals for output

Material: Electronic components on PCB
Housing Part
Protects internal components from environmental conditions

Material: Stainless steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Flame Scanner / Detector.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Burner

View system integration details

Manufacturers of Flame Scanner / Detector

Manufacturer profiles associated with Flame Scanner / Detector.

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Frequently Asked Questions

What is the typical detection distance of a flame scanner?

The detection distance typically ranges from 0.5 to 2.0 meters, depending on the model and flame characteristics. Always verify the exact distance for your specific application with the manufacturer.

How does the flame scanner respond to flame loss?

The response time for detecting flame presence or loss is typically 0.1 to 1.0 seconds. This ensures rapid shutdown of the fuel supply to prevent unburned fuel accumulation.

What are the environmental limits for operation?

The device operates in ambient temperatures from -40°C to 85°C and has an ingress protection rating of IP65 to IP67, making it dust-tight and water-resistant. Confirm these ratings for your specific model.

What output signal does the flame scanner provide?

It provides an analog output signal of 4 to 20 mA, which indicates flame intensity. This signal is used by the burner control system for monitoring and safety actions.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 10 bar (standard), up to 40 bar with high-pressure housing
other spec:	Response time: <2 seconds, Detection range: 1-100 meters, Wavelength sensitivity: UV (190-280 nm) or IR (4.3 μm) depending on model
temperature:	-40°C to +85°C (operating), up to +200°C with cooling accessories

Flame Scanner / Detector

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards