Description
The FD10 dual IR-UV flame detector is a kind of new-type intelligent fire detection equipment. This detector is manufactured with the high-performance dual infrared sensing technology and the ultraviolet detection technology, as well as the infrared sensor equipment with different wavelengths and narrow-band filtering and the ultraviolet flame sensing equipment of the solar blind band. Among these three sensors, the infrared sensor and the UV sensor are used to reflect the central wavelength of the flame information in different bands, and the other infrared sensor is used to monitor other infrared radiation in the environment. Combined with the flicker characteristics of the flame, the radiation spectrum with flame characteristics can be identified as a fire alarm by means of the operational analysis with the high-speed microprocessor and technical algorithm. The UV flame sensing equipment is able to suppress the interference from the sunlight in a good manner, so as to achieve a fast response to and accurate identification of the flame signal. In addition, this detector can be used for either dual infrared detection or single ultraviolet detection, and can be also used for both infrared and ultraviolet detection at the same time.
Product Characteristics
Be provided with high-speed, low-power, high-performance 32-bit high-precision data processing chip.
Have excellent resistance to radio frequency and electromagnetic interference and strong anti-interference performance.
Have perfect technical algorithms, high-speed response, high stability and strong ability in preventing false alarm.
Detection angle: IR 90°, UV 120°
Have the maximum detection distance of up to 50m.
Have multiple-level sensitivity settings to meet the needs of different occasions.
The magnetic rod is used to adjust the sensitivity, without requiring the removal of the cap.
The explosion-proof design is applicable for dangerous areas on many types of industrial sites.
Technical Parameters
| Model | FD1020 Dual IR-UV Flame Detector |
| Corresponding spectral range | 4.3μm, 5.0μm, 185nm~260nm |
| Detection object | Flame |
| Sampling mode | Real-time optical path sampling |
| Display mode | LED display |
| Status indication | The blinking green LED indicates the normal operation (the number blinking times every 3s represents the sensitivity level), and the blinking red LED indicates an alarm. |
| Operation mode | The magnetic rod is used to adjust the sensitivity (4 levels) |
| Output signal | 4~20mA current; one fault relay contact, one alarm relay contact |
| Response time | ≤10s |
| Explosion-proof mark | Ex d II C 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 | IR 90°, UV 120° |
| Weight | 1.5 ± 0.2 kg |
| Installation mode | Wall-mounted or 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℃~+60℃ |
| Relative humidity | ≤95%RH (without condensation) |
Frequently Asked Questions
What is the maximum detection range and angle of the FD1020 Flame Detector?
The FD1020 detector can detect standard 0.3m*0.3m n-heptane flames up to a maximum distance of 50 meters. The field of view features a detection angle of 90° for infrared (IR) and 120° for ultraviolet (UV).
How does the dual IR-UV technology prevent false alarms?
The unit utilizes narrow-band filtering, a solar-blind UV band sensor, and two infrared sensors—one detecting flame radiation and the other monitoring environmental interference. Combined with flame flicker analysis and a high-speed 32-bit microprocessor algorithm, it effectively suppresses sunlight and industrial interference.
How is the sensitivity adjusted during field operation?
The sensitivity is adjusted non-intrusively across 4 distinct levels using an external magnetic rod, eliminating the need to dismantle or open the detector housing cap on-site.
What do the LED status indicators communicate?
Normal operation is displayed by a blinking green LED (the number of blinks every 3 seconds corresponds to the selected sensitivity level), while an active fire condition triggers a blinking red alarm LED.
What are the enclosure ratings and explosion-proof certifications?
The detector is certified with explosion-proof markings Ex d II C T6 Gb / Ex tD A21 and possesses an IP66 ingress protection rating, housed in copper-free cast aluminum with an epoxy resin baking paint finish.
What signal outputs are provided by the FD1020?
The device features standard 4~20mA current loop output along with relay passive contacts, including one dedicated fault relay contact and one alarm relay contact.