Industry-Verified Manufacturing Data (2026)

Flame Sensor/Scanner

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Flame Sensor/Scanner used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Flame Sensor/Scanner is characterized by the integration of Optical Lens and Sensing Element. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless steel housing construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A safety device that detects the presence or absence of flame in combustion systems to ensure proper ignition and prevent hazardous conditions.

Product Specifications

Technical details and manufacturing context for Flame Sensor/Scanner

Definition
A critical safety component within combustion systems that continuously monitors flame presence using optical, thermal, or electrical detection methods. It provides real-time feedback to the control system to maintain safe combustion operations, trigger shutdown sequences during flame failure, and prevent unburned fuel accumulation that could lead to explosions or equipment damage.
Working Principle
Operates by detecting specific characteristics of flame such as ultraviolet (UV) radiation, infrared (IR) radiation, or flame rectification current. UV sensors detect the ultraviolet light emitted by flames, IR sensors monitor infrared radiation patterns, while flame rod sensors use the electrical conductivity of ionized gases in the flame to create a small current. The detected signal is processed by the control system to determine flame status.
Common Materials
Stainless steel housing, Quartz glass lens, UV/IR sensitive semiconductor elements, Ceramic insulators
Technical Parameters
  • Sensor housing dimensions and mounting specifications (mm) Standard Spec
Components / BOM
  • Optical Lens
    Focuses and transmits flame radiation to the sensing element
    Material: Quartz glass
  • Sensing Element
    Converts flame radiation into electrical signals
    Material: UV/IR sensitive semiconductor
  • Signal Amplifier
    Boosts weak detection signals for processing
    Material: Electronic components on PCB
  • Protective Housing
    Shields internal components from heat, dust, and environmental damage
    Material: Stainless steel
Engineering Reasoning
0.5-5.0 μm wavelength detection, 0-1500°C temperature range, 10-1000 Hz response frequency
Flame signal intensity drops below 2.0 μA at 50 Hz sampling rate, or false-positive detection occurs with background radiation exceeding 0.8 μA RMS noise floor
Design Rationale: Photodiode quantum efficiency degradation due to 850°C thermal aging of silicon junction, or UV tube cathode poisoning from sulfur compounds in combustion gases reducing electron emission below 1.2 mA threshold
Risk Mitigation (FMEA)
Trigger Quartz window contamination accumulating 3.2 mg/cm² of combustion particulates
Mode: Optical transmission loss exceeding 92% at 4.3 μm CO₂ absorption band
Strategy: Integrate 2.5 bar compressed air purge system with 15 μm particulate filter, activated during burner off-cycles
Trigger Thermoelectric cooler failure causing photodetector temperature rise above 45°C
Mode: Dark current increase to 15 nA, exceeding signal-to-noise ratio of 8:1 required for flame discrimination
Strategy: Implement redundant Peltier cooling modules with NTC thermistor feedback control maintaining 25±2°C operating temperature

Industry Taxonomies & Aliases

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

Applied To / Applications

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

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 1 bar (typical), up to 2 bar (max with special housing)
other spec: Response time: <2 seconds, Detection range: 0.5-10 meters, Wavelength sensitivity: UV (180-260 nm) or IR (4.0-4.6 μm) depending on model
temperature: -40°C to 85°C (operating), up to 120°C (short-term exposure)
Media Compatibility
✓ Natural gas combustion systems ✓ Oil-fired burners ✓ Coal-fired power plant boilers
Unsuitable: High-vibration environments without shock mounting (e.g., near heavy machinery with >5g vibration)
Sizing Data Required
  • Burner/furnace diameter or flame size
  • Required response time for safety shutdown
  • Ambient light/radiation interference level

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Lens contamination
Cause: Accumulation of soot, dust, or process deposits on the optical lens, reducing sensitivity and causing false alarms or failure to detect flame.
Electronics degradation
Cause: Thermal stress, vibration, or moisture ingress leading to circuit board failure, component drift, or signal processing errors.
Maintenance Indicators
  • Intermittent or false flame detection alarms during stable combustion conditions
  • Visible accumulation of soot or debris on the sensor lens or housing
Engineering Tips
  • Implement regular lens cleaning schedule using appropriate optical cleaning solutions and soft materials to prevent scratching
  • Ensure proper environmental sealing and vibration isolation during installation, and maintain stable power supply within manufacturer specifications

Compliance & Manufacturing Standards

Reference Standards
ISO 13849-1: Safety of machinery - Safety-related parts of control systems ANSI/ISA-12.12.01: Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations DIN EN 50104: Electrical apparatus for the detection and measurement of oxygen - Performance requirements and test methods
Manufacturing Precision
  • Response Time: +/- 0.5 seconds
  • Detection Range: +/- 5% of specified distance
Quality Inspection
  • Functional Safety Test (including response time verification)
  • Environmental Sealing Test (IP rating verification for ingress protection)

Factories Producing Flame Sensor/Scanner

Verified manufacturers with capability to produce this product in China

✓ 92% Supplier Capability Match Found

P Project Engineer from United States Feb 10, 2026
★★★★★
"The technical documentation for this Flame Sensor/Scanner is very thorough, especially regarding technical reliability."
Technical Specifications Verified
S Sourcing Manager from United Arab Emirates Feb 07, 2026
★★★★★
"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Flame Sensor/Scanner so far."
Technical Specifications Verified
P Procurement Specialist from Australia Feb 04, 2026
★★★★★
"Testing the Flame Sensor/Scanner now; the technical reliability results are within 1% of the laboratory datasheet."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

12 sourcing managers are analyzing this specification now. Last inquiry for Flame Sensor/Scanner from Thailand (1h ago).

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Frequently Asked Questions

What is the primary function of this flame sensor/scanner in machinery?

It detects the presence or absence of flame in combustion systems to ensure proper ignition and prevent hazardous conditions like unburned fuel accumulation or explosions.

Why does this flame sensor use both UV and IR sensitive elements?

UV/IR dual-spectrum sensing provides reliable flame detection across various fuel types and conditions, reducing false alarms from non-flame radiation sources while ensuring high sensitivity.

How does the stainless steel housing and quartz glass lens enhance durability?

Stainless steel resists corrosion in industrial environments, while quartz glass withstands high temperatures and thermal shock, maintaining optical clarity for consistent flame detection performance.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

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