EST-FD10-IR2 double IR flame detector is a new type of intelligent fire detection equipment. The detectors uses 2 infrared sensors with different wavelengths with narrow-band filtering. One sensor is used to reflect the center wavelength of the flame information. The other sensor is used to monitor other infrared radiation in the environment. Combining with the flicker characteristics of the flame, analyzing through high-speed microprocessors and calculating by mathematical algorithms, the radiation spectrum with flame characteristics is confirmed as a fire alarm.
The detector suppress the interference of sunlight, lightning, electric welding, thermal radiation, electromagnetic interference, mechanical vibration and other interference, thus achieving the rapid response and accurate identification of the flame signal.
| Response spectrum range | 4.3μm, 5.0μm |
|---|---|
| Detection object | Flame |
| Detection method | Real-time sampling of optical path |
| Display method | LED lights |
| Status indication | Green LED flashes to indicate normal operation (the number of flashes every 3 seconds represents the sensitivity level) Red LED always lights to indicate an alarm |
| Operation method | Magnetic bar to adjust sensitivity (4 levels totally) |
| Signal output | 4-20mA output |
| Response time | <30s |
| Ex grade | Ex d IIC T6 Gb / Ex tD A21 |
| Ingress protection | IP66 |
| Supply voltage | DC24V±6V |
| Working current | ≤30mA (DC23V) |
| Longest detection distance | 50 meters, 0.3m×0.3m N-heptane fire |
| Field of view | 90° |
| Weight | 1.5±0.2kg |
| Installation method | Wall mounted or lifting or holding-pipe |
| Cable entry interface | NPT1/2, default transfer to G1/2 (internal thread) |
| Housing material | Copper-free cast aluminum (epoxy resin on the surface) |
| Environment temp | -20℃~+60℃ |
| Environment humidity | ≤95%RH (no condensation) |
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