Ex Dual-Infrared Flame Detector Dust-Resistant Interference Chemicals
1. Product Overview
The JSY-F301-A is a tunnel-specific explosion-proof multi-spectral flame detector. It features dual infrared wavelength sensors, an ultraviolet sensor, and a sapphire optical filter, enabling early fire warnings for diverse fuel types.
By collecting multi-signal data, the detector employs unique time-domain and frequency-domain signal processing, along with Fourier fuzzy algorithms. Combined with comprehensive logical judgment on interference sources, it effectively eliminates disturbances from ambient light and thermal radiation, minimizing false alarms. This makes it ideal for indoor, outdoor, and open-air environments with multiple potential false alarm triggers.
Its advanced fire signal processing algorithms and multi-sensor technology enhance sensitivity, ensuring reliable operation in harsh industrial conditions like extreme temperatures and high humidity.
2. Product Features
(1) Multi-dimensional judgment integrating multi-frequency infrared, ultraviolet, time-domain, and frequency-domain data.
(2) On-site adjustable sensitivity.
(3) Compatible with various fuel types.
(4) Equipped with self-learning capabilities.
(5) Strong resistance to electromagnetic interference.
(6) Anti-false alarm and solar-blind properties.
3. Application
(1) Chemicals: production, storage, and transportation.
(2) Natural gas exploration and production facilities.
(3) Paint: manufacturing, storage, and transportation.
(4) Pharmaceutical industry.
(5) Petrochemical products: production, storage, and transportation.
4. Main Technical Data
| Nominal Voltage | 24V DC (18V DC~36V DC) |
| Operating current | ≤20mA |
| Alarm current | ≤25mA / DC 24V |
| Ambient temperature | -10~+55°C |
| Ambient humidity | ≤95% relative humidity without condensation |
| Spectral response | 3.8um 4.4um |
| Fire response time | N-heptane ≤15s |
| Adjustable sensitivity | Level I (The default level is Level I at the factory and it is locked.) |
| Detection angle | Vertical viewing angle: 90°; Horizontal viewing angle: 120° |
| Protection level | IP67 |
| Output mode | Standard relay output (fault, fire alarm), 4-20mA (optional) |
| Relay contact capacity | 1A/AC 125V 2A/DC 30V |
| Material | Cast aluminum (stainless steel is optional) |
| Implementation standard | GB 15631-2008 GB 12791-2006 |
| Dimensions | φ100mm/H165mm(φ3.94in/H6.50in) |
| Weight (kg / lbs) | 1.35kg (2.976lbs) |
| Color | Silver, Red (Customizable) |
| Cable outlet thread | Standard G3/4, two pieces |
| Explosion-proof mark | Ex db ⅡC T6 Gb,Ex tb IIIC T80℃ Db |
| Detection distance | Fuel | Fire source size | Details |
| N-Heptane | 0.3mx0.3m(lft.x1ft.) | 50m(164ft.) |
| Petrol | 0.3mx0.3m(1ft.x 1ft.) | 40m(131ft.) |
| Diesel fuel | 0.3mx0.3m(1ft.x lft.) | 35m(114ft.) |
| Kerosene | 0.3mx0.3m(lft.x1ft.) | 35m(114ft.) |
| Ethanol | 0.3mx0.3m(lft.x lft.) | 30m(98ft.) |
| Methane | 0.5mx0.2m(1.7ft.x0.7ft.) | 30m (98ft.) |
| Sheet of paper | 0.3mx0.3m(1ft.x 1ft.) | 25m(82ft.) |
5.Indicator Lights
The JSY-F301-A flame detector is equipped with three status indicator lights, which are used to indicate its working status.
| Status | Indicator light |
| Operation Indicator Light (Green) | Always on |
| Alarm Confirmation Indicator Light (Red) | It blinks for early warning and is always on for an alarm. |
| Fault Indicator Light (Blue) | When a fault occurs, the blue light is always on (and the red light goes out). When the device is powered on, it blinks to show the self-checking and self-adaptive status. |
6.Complete Product Set
| Name | Quantities | Unit of measure |
JSY-F301-A
Point-type Infrared Flame Detector | 1 | piece |
| Instruction Manual | 1 | copy |
| Explosion-proof Certificate | 1 | copy |
| Mounting Bracket | 1 | item |
| Fastenings | 1 | item |
| M8 Nut | 1 | piece |
| M8x45 Hexagon Socket Head Cap Screw | 1 | piece |
| M8x25 Hexagon Socket Head Cap Screw | 1 | piece |
| Flame Detection Remote Controller YC-F1 | 1 | piece per batch |
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Dual Infrared IR UV Flame Detector Ex Dust Resistant Interference Chemicals Images
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