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SHUANGHONGYIZI Series

Dual-red and one-purple flame detector

Model: YHHZ
Key Features: Detection angle of 90° in infrared and 120° in ultraviolet, detection range up to 50 meters, explosion-proof design, optional stainless steel casing

Sales Hotline
136-8498-6459
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Product Overview

The dual-infrared and one-ultraviolet flame detector is a new type of intelligent fire detection device. The detector utilizes high-performance dual-infrared sensing technology and ultraviolet detection technology, employing infrared sensors with different wavelengths and narrowband filtering, as well as ultraviolet flame sensors in the solar blind wavelength range. One of the three sensors, one infrared and one ultraviolet, is used to respond to the central wavelengths of flame information in different bands, while the other infrared sensor monitors other infrared radiation in the environment. By combining the flickering characteristics of flames and performing computational analysis through high-speed microprocessors and technical algorithms, the radiation spectrum with flame characteristics is confirmed as a fire alarm. The ultraviolet flame sensing device effectively suppresses interference from sunlight, enabling rapid response and accurate identification of flame signals. Additionally, this detector can be used for dual-infrared detection, single-ultraviolet detection, or both infrared and ultraviolet detection simultaneously.

Application Scenarios

Product Features Utilizing a high-speed, low-power consumption, high-performance 32bit high-precision data processing chip Excellent radio frequency and electromagnetic interference resistance, with strong anti-interference capability Sophisticated technical algorithms, high-speed response, high stability, and strong anti-false alarm capability Detection angle 90° for infrared, 120° for ultraviolet ***Remote detection range up to 50m Multi-level sensitivity settings to meet the needs of different occasions Magnetic rod adjusts sensitivity, cover-free adjustment The explosion-proof design is suitable for hazardous areas in various industrial settings Technical Parameters
Corresponding spectral range 4.3μm5.0μm185nm~260nm
Detection Object Flame
Sampling method Real-time optical path sampling
Display mode LEDdisplay
Status indication GreenLEDflashing indicates normal operation(The number of flashes per3srepresents the sensitivity level), while a constant red light indicates an alarm
Operation 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 Infrared90 °, Ultraviolet120 °
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)
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