1. Overview
A725/UVIR3 is a four-band Infrared-Ultraviolet composite high-performance flame detector. This product uses an embedded 16-bit microprocessor, combined with efficient signal processing algorithms, to provide continuous protection under frequent false alarm sources and in environments with infrared radiation. It is suitable for indoor and outdoor applications where a high degree of false alarm suppression is required and where excellent fire detection performance is required.
2. Specifications
Working voltage: DC 24V (18~30V)
Working current: ≤60mA
Spectrum range: IR3 3.8-5.0um, UV 185-260nm
Detection range: 55m (N-heptane) / 35m (Alcohol) / 45m (Gasoline) / 40m (Diesel fuel) / 40m (Kerosene) @ flame size 0.3mx0.3m (1ft x 1ft.) / 25m (Methane) @ flame height 70cm/ Fire hole 6mm/40SLPM
Response time: ≤10s
Viewing angle: 120°
LED display: In normal working condition, the green light flashes; In case of fire alarm, the red light is always on; In case of fault, the yellow light is always on.
Outputs: Relays: Fire alarm relay, normally open contact output, 3A@30VDC; Fault relay, normally closed contact output, 3A@30VDC
Optional current loop (0~20mA): General fault condition, ≤2mA; Normal detection state, 4mA; Fire alarm output status, 20mA
Working temperature: -40F ~ +158F(-40 ° C ~ +70° C)
Working humidity: 0 ~ 95% RH (no condensation)
Storage temperature: -40F ~ +185F (-40 ° C ~ +85 ° C)
Electrical Interface: 2 x G3/4
Dimensions: 178mm*155mm*122mm
Weight: 2KG
Housing material: Aluminum/Stainless steel
Explosion-proof rating: Ex db IIC T6 Gb/Ex tb IIIC T80℃ Db
Ingress Protection: IP66/IP67
Certification: SIL3, CCC, CNEx
3. Main Features
Four-way vision: 3 infrared pyroelectric sensors and 1 ultraviolet photoelectric sensor are used to achieve accurate flame detection function
Better anti-interference ability: Perfect EMC circuit design, industrial-grade anti-electromagnetic interference ability
Self-diagnosis function: comprehensive self-diagnosis function and fault alarm output
Multiple wiring methods: Support multiple communication methods such as relay contact, current loop and RS485
Special algorithm: Independently developed flame recognition algorithm to enable the detector to have high detection performance
Special coated lenses: Proprietary window-coated lenses effectively reduce external light interference while increasing the transmittance of the infrared band
Easy to maintain: Large aluminum shell makes installation and subsequent maintenance easy
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They are now widely exporting to 200 countries.