The Det-Tronics X3301A4M23T2 is a sophisticated multi-spectrum infrared (MSIR) flame detector designed to provide superior detection capabilities while maintaining a high level of immunity to false alarm sources. Utilizing advanced signal processing algorithms, the X3301 series is capable of detecting a wide range of hydrocarbon fires, including methane and methanol, even in challenging industrial environments. Its robust construction and global certifications make it a primary choice for high-risk applications where rapid fire detection is critical for safety and asset protection.
Product Specifications
For more information and availability, please visit the product page: X3301A4M23T2
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Manufacturer: Det-Tronics
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Model Number: 028249-001 (X3301A4M23T2)
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Detection Technology: Multi-Spectrum Infrared (MSIR)
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Housing Material: Aluminum (typically polyester powder-coated)
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Operating Voltage: 24 VDC nominal (18 to 30 VDC range)
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Current Consumption: 2.8 Watts typical at 24 VDC
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Field of View: 90 degrees horizontal and vertical
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Spectral Range: 4 to 5 microns (multiple IR bands)
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Certifications: Class I, Div 1; ATEX; IECEx; SIL 2 Capable
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Dimensions: 4.8 x 4.8 x 4.2 inches (Approximate)
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Weight: 4.3 lbs (1.9 kg)
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Country of Origin: United States
Application Fields
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Oil and Gas Facilities: Offshore platforms, refineries, and pipelines.
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Chemical Plants: Storage areas and processing units involving volatile hydrocarbons.
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Power Generation: Gas turbine enclosures and fuel handling areas.
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Hangar Facilities: Commercial and military aircraft protection.
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Fuel Loading Racks: High-risk transfer points for flammable liquids.
Product Instructions
The X3301A4M23T2 should be installed with a clear line of sight to the potential fire hazard. It is recommended to mount the unit on a swivel bracket to allow for precise orientation. Wiring should be performed in accordance with local electrical codes, ensuring the use of shielded cables to prevent electromagnetic interference. Routine maintenance includes cleaning the sapphire optical window with a soft cloth and non-abrasive cleaner to ensure the sensors maintain peak sensitivity. The detector features an internal Automatic Optical Integrity (oi) test that periodically checks the optical path and sensor health without the need for external testing.

Q&A: Common Questions
How does the multi-spectrum technology prevent false alarms? The detector analyzes multiple infrared wavelengths simultaneously. By comparing the energy ratios across these bands, it can distinguish the specific signature of a flame from other IR sources like sunlight, arc welding, or hot machinery.
Can this detector identify non-hydrocarbon fires? The X3301 is optimized for hydrocarbon-based fires. For hydrogen or metal-based fires, different detection technologies (such as UV/IR or specialized IR bands) are typically required.
What is the significance of the SIL 2 rating? Safety Integrity Level 2 (SIL 2) indicates that the device has been rigorously tested and certified to meet specific reliability standards for use in safety-instrumented systems, reducing the probability of failure on demand.
Does the unit require frequent calibration? No, the X3301 is factory calibrated. The continuous self-testing (oi) feature monitors the system’s performance, and the unit will trigger a fault signal if it detects a decrease in sensitivity or an internal hardware issue.
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