Det-Tronics 001863-02 Rev A Supervised Ultraviolet Fire Detection System

Det-Tronics AOi 001863-02 Rev A Supervised Ultraviolet Fire Detection System

The Det-Tronics AOi 001863-02 Rev A is an industrial and marine-grade Supervised Ultraviolet (UV) Fire Detection module designed for critical hazardous area deployment. Engineered by Detector Electronics Corporation, this advanced radiation sensor utilizes a highly specialized solar-blind ultraviolet tube to identify the localized electromagnetic emissions of an active flame instantly upon ignition.

Integrating Det-Tronics’ proprietary Automatic Optical Integrity (oi®) diagnostic matrix, the module continuously monitors the optical optical path, detector sensitivity, and internal electronic circuitry. This prevents field blinding or catastrophic failure caused by airborne contaminants, oil film deposition, or smoke masking without requiring external intervention or triggering false alarm routines.

Model Details:

• Brand: Det-Tronics (Detector Electronics Corporation)
• Model Number: AOi 001863-02 Rev A
• Manufacturer Part Number (MPN): 001863-02 / 00186302
• Revision Level: Rev A
• Equipment Type: Supervised Ultraviolet Fire Detection System Component

Key Features

1. Automated oi® Verification: Executes a full electro-optical self-test every 60 seconds to ensure the transmission window is clear and the sensor maintains target sensitivity thresholds.
2. Solar-Blind Spectral Range: Specifically tuned to respond exclusively to the narrow 1850 to 2450 Angstrom band of UV radiation, preventing false activations from sunlight or standard illumination.
3. Ultra-Fast Response Matrix: Capable of sub-second and standard less than 3-second fire alarm actuation upon exposure to rapid-growth or high-speed flame events.
4. Heavy Industrial Enclosure: Designed to resist high-vibration engine rooms, offshore structural twisting, and severe ambient pressure swings common to marine deployments.
5. Supervised Control Loops: Built-in loop-supervision circuitry continually reports internal component health, line faults, and structural open/short anomalies directly to the controller.

Use cases

• Marine Engine Rooms & Machinery Spaces: Rapidly detects fuel spray atomization fires and high heat combustion breakouts before to thermal flashover.
• Offshore Drilling & Production Platforms: Delivers open-air wellhead and production manifold monitoring where wind or rain makes thermal or smoke solutions impossible.
• Gasoline & Fuel Loading Terminals: Protects transfer pumps, custody transfer skids and truck loading racks against volatile liquid ignitions.
• LNG/LPG Storage Facilities: Continuous monitoring of boil-off compression zones and industrial storage tanks.
• Industrial Co-generation Plants: Provides fast acting zone containment triggers for gas turbine enclosures and interior switchgear regions.

Compatible Controllers & Systems

• Det-Tronics R7404 Series Controllers: Fully compatible with multi-zone microprocessor-driven optical controllers.
• Det-Tronics C7050 Ultraviolet Sensor Assemblies: Designed to work alongside or interface directly within C7050 structural sub-systems.
• Eagle Quantum Premier (EQP) Safety Systems: Integrates into legacy and current addressable industrial loop controllers via standardized interfacing hardware.

Part Number Cross-References

• Det-Tronics 001863-02
• Det-Tronics 00186302
• Det-Tronics AOi 001863-02 Rev. A

Installation Topography & Cone-of-Vision Alignment

When retrofitting an engine room or cargo space with the AOi 001863-02 Rev A module, you must strictly calculate the physical line-of-sight cone of vision. Ultraviolet rays travel in straight trajectories and cannot penetrate thick structural bulkheads, heavy steam curtains, or localized engine exhaust soot clouds.

Ensure the sensor face is angled slightly downward (minimum 10° to 15°) to prevent horizontal settling of airborne oil mists or salt crusts on the optical viewing window. Even though the system features the automatic oi® loop, keeping physical settlement to a minimum ensures long calibration retention.

Frequently Asked Questions

What causes a fault signal on the Det-Tronics 001863-02 Rev A module?

A fault condition is usually caused by an obstruction in the optical path (detected during the 60-second oi® test) or an electrical loop problem like an open or short circuit on the supervising line. If a fault occurs, inspect the outer quartz window for oil film or carbon scaling, clean it using Det-Tronics approved solvent cloths, and check your loop voltage at the module input terminals.

Can this UV fire detection system be used in direct sunlight?

Yes. The Det-Tronics AOi system is designed with solar-blind filtering, tuning the sensor specifically to ultraviolet radiation wavelengths between 1850 and 2450 Angstroms. Because atmospheric ozone filters out solar UV radiation within this exact range, the system can be deployed in outdoor marine environments without suffering false alarms caused by direct or reflected sunlight.

How frequently should the optical window be manually tested or inspected?

While the system runs an Automatic Optical Integrity routine every minute, marine safety guidelines recommend doing a physical inspection and manual oi® test lamp validation every 6 months, or more frequently in high-soot environments like heavy fuel oil (HFO) separator rooms.

Is the Rev A module backward compatible with older Det-Tronics UV networks?

Yes. The 001863-02 Rev A module maintains structural and electrical parameter continuity with legacy supervised UV channels running on standard 24VDC loops, provided the base controllers support the proprietary Det-Tronics oi® pulsing system.