| Item | Value |
|---|---|
| Measured gases | |
| Measuring range | 90°, 100% fully conical field of view; The central axis ± 45° |
| Detection principle | infrared |
| Accuracy | Extremely high, high, medium, low: adjustable by means of a switch |
| Resolution | |
| Response time | |
| Ingress protection | |
| Explosion protection | |
| Operating temperature | -40～+185ºF（-40～+85ºC） |
| Power supply | 18~32VDC, rated 24VDC |
| Output signal | 0~20 mA, users can choose the source type or leak type |
The Fire Sentry FS20Xdetector builds on the reliable Fire Sentry SS4detector and integrates infrared and UV sensing technologies. The Fire Sentry FS20X is a multispectral, UV/dual-band IR/Vis flame detector with a certified UV dayblind transmitter. The Fire Sentry FS20X has a faster response to fire over a wide temperature range and a longer detection range than conventional UV/IR detectors.
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The FS20Xdetector uses advanced patented algorithms for signal processing and analysis through well-designed fire and flame analysis methods to provide alarm responses to various types of fires in a variety of industrial environments. The Fire Sentry FS20X's patented WideBand IR™ ™, Near Band IR, and Visible technologies can still alert for fires when the detector's UV signal is reduced due to too much smoke or contaminated lenses, but with reduced sensitivity and slower response. The dual-core microprocessor will provide you with fail-safe operation and fast, reliable performance guarantees. The main microprocessor will be used for high-speed signal sampling and digital signal processing; The microprocessor will be used to process various sensor data, communicate, self-diagnose and implement multiple output interfaces; In addition, the product comes with a memory that holds event logs and FirePic™ data.
• Patented UV/IR WideBand IR™ technology;
• Detects heptane flames with a range greater than 200 feet @ 1 square foot;
• Patented Electronic Frequency Analysis™ technology;
• Added visible light sensor for optimal false alarm prevention;
• Detection sensitivity is optional;
• 90° viewing angle, 100% fully tapered field of view;
• Dual-core microprocessor for reliable performance;
• Real-time clock to correctly provide the time of the accident;
• FirePic™: Up to 6 pre-fire data storage records;
• Event log: with time and date, up to 200 event records;
• RS 485 interface;
• Non-isolated 4~20mA analog output (source or drain);
• Alarm, fault and fire confirmation relays;
• Automatic optical path detection and circuit self-test;
• Wide operating temperature range;
• Pluggable electronic modules for component protection for easy on-site installation;
• Two 3/4" NPT or two 25mm electrical interfaces;
• Low power consumption;
• Resistant to RFI and EMI;
• FM certified
General technical specifications
Field of view range 90°, 100% fully conical field of view; The central axis ± 45°
Sensitivity Very high, high, medium, low: adjustable by means of a switch
Response time 1 square foot n-heptane flame at 100 feet: 3~5 seconds;
1 square foot n-heptane flame at 200 feet: 3~10 seconds
Spectral sensitivity UV: 185~260 nm;
Near-infrared: 400~700 nm;
Narrowband infrared: 0.7~1.1 microns;
Broadband infrared: 1.1~3.5 microns;
Working voltage 18~32VDC, rated 24VDC
Power Consumption Operation: 83 mA
Alarm 133 mA
Heater 155 mA
Note: The heater is turned on at 0ºF (-17ºC).
Output Relay Alarm: SPDT (Normally Open/Normally Closed), Disconnect/Gap Close, Latch/Non-Latch;
Fault: SPDT (normally open), usually on, latched/non-latched;
Auxiliary: SPDT (normally open/normally closed), disconnected/gap closed, latched/non-latched;
Contact rating: 1 A×24 VDC
Analog output 0~20 mA, users can choose the source type or drain type
Loop resistance 50~400 ohms
Digital Communication You can choose one of the following:
• RS-485, ModBus protocol;
• RS-485，FireBus II；
• RS-485 Special (optional);
• HART, optional plug-in module
Indication Signal Blue LED Indicator: Power;
Red LED indicator: alarm;
Yellow LED indicator: fault;
Temperature Range Operating: -40~+185ºF (-40~+85ºC);
Storage: -67~+230ºF (-55~+110ºC)
Humidity range Relative humidity: 5~95%RH, non-condensing
Vibration meets or exceeds MilSpec 810C Method 514.2, Curve AW12
Wiring 14 AWG (2.5mm 2 ) ~ 22 AWG (0.326mm 2) , shielded cable is recommended
Electrical Interface Standard: Two 3/4" NPT or two M25
Housing material Aluminum alloy or 316 stainless steel
Ingress protection NEMA 4 & 4X，IP66
Certified FM:
Class I, Div. 1 & 2, Groups B, C, & D
Class II, Div. 1 & 2, Groups E, F, & G
Class III
ATEX：II 2 G D
Ex d IIC T4（Ta：-60～+110ºC），T5（Ta：-60～+90ºC），T6（Ta：-60～+75ºC）
CE：
Complies with EN6000-6-4 and EN50130-4 standards
SIL Rating:
FMEDA complies with IEC 61508 safety requirements.
Weight Aluminum: 3.6 lbs (1.6 kg);
Stainless steel: 7 lbs (3.2 kg)
Mounting Swivel bracket (optional)
Warranty three years
• Petroleum, petrochemical, and refineries;
• Offshore platforms;
• Turbines/compressors;
• Acetylene processing and storage;
• Oil and gas pipelines and pumping stations;
• LPG, LNG loading and unloading stations;
• Natural gas and compressed natural gas farms/stations;
• Production and storage of alcohol, methanol and isopropyl alcohol;
• Storage sites/stations for crude oil and gasoline;
• Military or civilian hangars;
• Production and storage of hydrogen;
• Storage of coatings, organic solvents;
• Chemical production, storage and loading workshops;
• Power plants;
• Silane storage