Product Overview
The Autronica BG-201 is an interactive point flame detector designed for the rapid detection of fires involving carbonaceous materials and hydrocarbon fuels.
Two infrared sensors monitor different sections of the fire’s infrared spectrum. The detector evaluates both signals to confirm the characteristics of a genuine flame while rejecting sunlight, hot equipment and other nuisance-alarm sources.
It is particularly suitable for engine rooms and other demanding marine environments.
Main Features
- Dual-infrared flame-detection technology
- Very fast detection of hydrocarbon fires
- Multiple configurable sensitivity classes
- Autronica DYFI+ intelligent signal processing
- High immunity to false alarms
- Solar-resistant operation
- Not easily blinded by an oil film on the window
- Automatic electronic addressing
- Integrated short-circuit isolator
- Built-in alarm-indicator LED
- IP66/IP67 environmental protection
- Designed for major marine-class requirements
- Compatible with AutroSafe and Autroprime systems
Technical Specifications
| Specification | Details |
|---|---|
| Detection principle | Dual-infrared flame detection |
| Detector type | Interactive/addressable |
| Maximum detection range | Up to 25 m |
| Field of view | ±45° horizontal |
| Vertical field of view | +30°/–45° |
| Supply voltage | Supplied from the detector loop |
| Standby current | Approximately 90 µA |
| Alarm current with LED | Approximately 2.1 mA |
| Operating temperature | –40°C to +70°C |
| Storage temperature | –50°C to +70°C |
| Humidity | 0–96% RH |
| Protection rating | IP66/IP67 |
| Weight | Approximately 210 g |
| Materials | Polycarbonate and sapphire glass |
| Colour | Transparent/light grey |
| Maximum cable size | 2.5 mm² / AWG 14 |
| Standards | EN 54-10 and EN 54-17 |
| Part number | 116-BG-201 |
Selectable Detection Classes
| EN 54-10 class | Detection range |
|---|---|
| Class 1 | Up to 25 m |
| Class 2 | Up to 17 m |
| Class 3 | Up to 12 m |
When configured in legacy mode, the detector operates in Class 2 with a detection range of up to approximately 17 metres.
Supported Systems
- AutroSafe, software version 4.4.1 or later
- Autroprime, software version 2.0.0 or later
- Legacy-mode support for replacing applicable older flame-detector interfaces
Typical Marine Applications
- Ship engine rooms
- Generator and machinery spaces
- Turbine enclosures
- Fuel-treatment rooms
- Pump rooms outside hazardous zones
- Ferry and cargo-ship machinery spaces
- Workshops and industrial production areas
- Power plants
- Warehouses containing combustible materials
Replacement Application
Autronica also offers a BG-201 maritime replacement kit for replacing the older 601F-M detector. The kit includes the BG-201 detector and a suitable mounting plate.
Maintenance Requirement
The detector’s sapphire window should be inspected and cleaned regularly. Water, ice, snow or heavy contamination on the sensing window may reduce its effective detection range.

