The dual-infrared flame detector is a novel intelligent fire detection device. Utilizing high-performance dual-infrared sensing technology, the detector employs infrared sensors with different wavelengths and narrow-band filtering. One sensor reflects the central wavelength of flame information, while the other monitors other infrared radiation in the environment. By combining the flickering characteristics of flames and analyzing through high-speed microprocessors and technical algorithms, the radiation spectrum with flame characteristics is confirmed as a fire alarm. The detector exhibits strong anti-interference capabilities, effectively suppressing disturbances such as sunlight, lightning, electric welding, thermal radiation, electromagnetic interference, and mechanical vibration. It also provides rapid response and accurate identification of flame signals.
SHUANGHONGWAI Series
Dual-infrared flame detector
Model: YHEH
Key Features: Detection angle of 90°, detection range up to 50 meters, explosion-proof design, multi-level sensitivity settings
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Product Overview
Application Scenarios
Product Features
Utilizing a high-speed, low-power consumption, high-performance 32bit high-precision data processing chip
Excellent resistance to radio frequency and electromagnetic interference, with strong anti-interference capability
Sophisticated technical algorithms, high-speed response, high stability, and strong false alarm resistance
Detection angle 90°
***Remote detection range up to 50m
Multi-level sensitivity settings to meet the needs of different occasions
Magnetic rod adjusts sensitivity, cover adjustment without dismantling
The explosion-proof design is suitable for hazardous areas in various industrial sites.
Technical Parameters
| Corresponding spectral range | 4.3μm、5.0μm |
| Detection Object | Flame |
| Sampling method | Real-time optical path sampling |
| Display mode | LEDdisplay |
| Status indication | The green LED flashes to indicate normal operation (the number of flashes per 3 seconds represents the sensitivity level), while a constant red light indicates an alarm |
| Operating mode | Magnetic wand sensitivity adjustment(4levels) |
| Output signal | 4~20mAcurrent;1channel fault relay contact,1channel alarm relay contact |
| Response time | ≤10s |
| Explosion-proof Mark | E xd II C T6 Gb/ Ex tD A21 |
| Protection level | IP66 |
| Operating voltage | DC24V ± 6V |
| Operating current | ≤30mA(DC24V) |
| Signal output | Relay passive contact,4~20mAoutput |
| ***Detection range | 50m0.3m*0.3mn-heptane flame |
| Detection angle | 90° |
| Weight | 1.5 ± 0.2kg |
| Installation method | Wall-mounted, ceiling-mounted, or pipe-clamped |
| Cable entry device interface | Two housing unitsNPT1/2connector |
| Housing | Copper-free cast aluminum, surface epoxy, resin baking paint treatment |
| Ambient temperature | -20℃~+60℃ |
| Relative humidity | ≤95%RH(no condensation) |
