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The FD10 dual infrared flame detector is an advanced, intelligent fire detection device designed for high-risk industrial applications. Utilizing high-performance dual infrared sensing technology, this detector features three infrared sensors with different wavelengths and narrow-band filtering. One sensor reflects the central wavelength of flame details, while the others monitor ambient infrared radiation in the background. By integrating operational analysis using a high-speed microprocessor and robust algorithms, it accurately identifies fire alarms while effectively suppressing interferences such as sunlight, lightning, electric welding, thermal radiation, electromagnetic noise, and mechanical vibrations.
High-speed, low-power, and high-performance 32-bit precision data processing chip.
Excellent resistance to radio frequency and electromagnetic interference (EMI) for extreme stability.
Advanced algorithms ensure high-speed response and superior false alarm prevention.
Wide detection coverage with a viewing angle up to 90° and maximum range up to 50m.
Multiple sensitivity levels (4 levels) adjusted easily using a magnetic rod without removing the cap.
Explosion-proof construction suitable for hazardous and harsh industrial conditions.
| Model | FD1020 Dual Infrared Flame Detector |
| Corresponding spectral range | 4.3μm, 5.0μm |
| Detection object | Flame |
| Sampling mode | Real-time optical path sampling |
| Display mode | LED display |
| Status indication | Blinking green LED: normal operation (blinks represent sensitivity level every 3s); Blinking red LED: alarm. |
| Operation mode | Magnetic rod sensitivity adjustment (4 levels) |
| Output signal | 4~20mA current; one fault relay contact, one alarm relay contact |
| Response time | ≤10s |
| Explosion-proof mark | Ex d IIC T6 Gb/ Ex tD A21 |
| Degree of protection | IP66 |
| Operating voltage | DC24V ± 6V |
| Operating current | ≤30mA (DC24V) |
| Signal output | Relay passive contact, 4~20mA output |
| Maximum detection distance | 50m (0.3m * 0.3m n-heptane flame) |
| Detection angle | 90° |
| Weight | 1.5 ± 0.2 kg |
| Installation mode | Wall-mounted, suspended, or pipe-clamped |
| Interface of cable entry device | Shell, two NPT1/2 interfaces |
| Shell | Copper-free cast aluminum, epoxy resin baking paint finish |
| Ambient temperature | -20℃ to +60℃ |
| Relative humidity | ≤95%RH (without condensation) |
The FD1020 features a maximum detection distance of up to 50 meters (based on a 0.3m*0.3m n-heptane flame) and supports a wide detection angle of up to 90°.
By integrating high-performance dual infrared sensors, narrow-band filtering, and a 32-bit precision processor, the device filters out interferences such as sunlight, lightning, electric welding, and thermal radiation.
Yes, the sensitivity can be adjusted across 4 levels using a magnetic rod. This enables adjustments without removing the protective cap.
Absolutely. It features an explosion-proof construction with marks Ex d IIC T6 Gb / Ex tD A21 and holds an IP66 ingress protection rating, making it ideal for harsh industrial environments.
The device supports versatile mounting configurations, including wall-mounted, suspended, and pipe-clamped installations to suit various project requirements.
The detector outputs standard 4~20mA signals along with passive relay contacts for both fault indicators and alarm signals.
