Highlight:
Explosion Proof Flame Detector
, Petrochemical Industry Flame Detector
, Quad Band UV IR Detector
Explosion-Proof Quad-Band Flame Detector Petrochemical Industry
1.Product Overview
The JSY-F401 is an explosion-proof multi-spectral flame detector designed for early fire detection across diverse fuel types. It features three infrared wavelength sensors, one ultraviolet sensor, and a sapphire optical filter, delivering exceptional responsiveness to combustion flames from various fuels.
To minimize false alarms, the detector processes multi-signal data via proprietary time-domain/frequency-domain analysis and Fourier fuzzy algorithm. Combined with interference source logic for comprehensive judgment, it effectively eliminates interference from ambient light and thermal radiation—making it ideal for indoor and outdoor open environments with multiple false alarm
sources. Its specialized fire signal processing algorithm and multi-sensor technology significantly enhance sensitivity, enabling reliable operation in harsh industrial conditions such as extreme temperatures and high humidity.
2.Product Features
(1) Field-adjustable sensitivity
(2) Multi-layer detection: multi-frequency IR, UV, time-domain, and frequency-domain analysis
(3) Built-in self-learning function
(4) Strong resistance to electromagnetic interference
(5) False alarm prevention with solar-blind technology
(6) Unique markings for field-of-view angle adjustment
(7) Dustproof, explosion-proof, corrosion-resistant, and waterproof design
3. Application
(1) Petrochemical sector: production, storage, and transportation
(2) Nuclear power plants, converter stations, and transformer zones
(3) Natural gas exploration and production facilities
(4) Chemical industry: production, storage, and transportation
(5) Pharmaceutical manufacturing sites
(6) Paint industry: manufacturing, storage, and transportation
(7) Power plants: pump areas, machine rooms, and unattended zones
4.Main Technical Data
| Rated voltage |
24V DC (18V DC~36V DC) |
| Operating current |
≤20mA |
| Alarm current |
≤25 mA / DC 24 V |
| Ambient temperature |
-10~+55 °C |
| Ambient humidity |
≤95% relative humidity without condensation |
| Spectral response |
3.8µm 4.4µm 5.3µm 185-260nm |
| 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) |
| Relay contact capacity |
1A/AC 125V 2A/DC 30V |
| Material |
Cast aluminum (stainless steel is optional) |
| Implementation standard |
GB15631-2008 GB12791-2006 |
| Dimensions |
165mmx136mmx 100m(6.50in×5.35in×3.94in) |
| Weight |
1.35kg (2.976lbs) |
| 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
| Status |
Indicator light |
| Operation Indicator Light (Green) |
Always on |
| Alarm Confirmation Indicator Light (Red) |
It flashes for early warning and stays on when in alarm. |
| Fault Indicator Light (Blue) |
When a fault occurs, the blue light stays on (and the red light goes out). When the device is powered on, it flashes, indicating the self-checking and self-adaptive status. |
6.Complete Product Set
| Name |
Quantities |
Unit of measure |
JSY-F401
Point-type Infrared Flame Detector
Point-type Ultraviolet 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 |
