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HONEYWELL FS20X PLUS
Multipurpose Flame Detection
The Honeywell FS20X Plus flame detector responds to Hydrocarbon, non-Hydrocarbon, and Hydrogen fires with an increased range of detection while simplifying flame detection in a single device. Enhance your overall fire and gas safety by deploying reliable flame detection that can see better through rain, fog and smoke. The FS20X Plus can be used for a variety of demanding industrial applications, and can help businesses protect people, plants, and processes as part of an overall safety system.
FEATURES AND BENEFITS
DETECTING FLAMES, FROM A RANGE OF SOURCES
Honeywell FS20X Plus has one ultraviolet and three infrared sensor bands that monitor key wavelengths. Triple IR and especially the WideBand IR can see flames that become almost invisible to single or narrow band detectors during poor conditions, the UV protects against nuisance alarms and broadens the types of flaming fires detectable.
Without the need to rely on CO2 spikes like narrow band detectors todetect emerging flames, Honeywell FS20X Plus can monitor the bands that are most likely to see a fire.
ENGINEERED FOR RELIABLE FLAME DETECTION
Honeywell FS20X Plus has dual microprocessors to ensure robust, reliable flame detection. The first manages high-speed digital sampling and signal-processing. The second handles sensor data, communications and self-diagnostics — plus added memory for event logs.
TABLE 1. FLAME RESPONSE — OUTDOORS, VERY HIGH SENSITIVITY,
TYPICAL RESPONSE TIME: 5 SECONDS
Fuel | Fire Size | Fire Distance |
n-Heptane | 12 in × 12 in (0.3 m × 0.3 m) | 275 ft (84 m) |
IPA | 12 in × 12 in (0.3 m × 0.3 m) | 200 ft (61 m) |
Methane | 3/8 in (9.5 mm) Dia. orifice, 32 in (0.81 m) plume | 100 ft (30 m) |
Butane | 3/8 in (9.5 mm) Dia. orifice, 32 in (0.81 m) plume | 195 ft (59 m) |
Propane | 3/8 in (9.5 mm) Dia. orifice, 32 in (0.81 m) plume | 200 ft (61 m) |
Ethanol | 12 in × 12 in (0.3 m × 0.3 m) | 160 ft (49 m) |
Methanol | 12 in × 12 in (0.3 m × 0.3 m) | 105 ft (32 m) |
Hydrogen | 3/8 in (9.5 mm) Dia. orifice, 32 in (0.81 m) plume | 90 ft (27 m) |
Diesel | 12 in × 12 in (0.3 m × 0.3 m) | 200 ft (61 m) |
Kerosene | 12 in × 12 in (0.3 m × 0.3 m) | 160 ft (49 m) |
JP-4 | 12 in × 12 in (0.3 m × 0.3 m) | 250 ft (76 m) |
JP-A | 12 in × 12 in (0.3 m × 0.3 m) | 200 ft (61 m) |
JP-5 | 12 in × 12 in (0.3 m × 0.3 m) | 200 ft (61 m) |
JP-8 | 12 in × 12 in (0.3 m × 0.3 m) | 200 ft (61 m) |
Class A (Paper) | 12 in × 12 in (0.3 m × 0.3 m) | 150 ft (46 m) |
Syngas (53% H2, 24% CH4, 11% N2, 8% CO, 4% CO2) |
3/8 in (9.5 mm) Dia. orifice, 28 in (0.71 m) plume | 90 ft (27 m) |
Acetylene | 3/8 in (9.5 mm) Dia. orifice, 12 in (0.3 m) plume | 110 ft (34 m) |
Silane | 9/64 in (3.5 mm) Dia. orifice, 12 in (0.3 m) plume | 70 ft (21 m) |
**The relative ratio among Very High. High, Medium, and Low sensitivities is approximately 100%, 75%, 50%, and 25%.
TABLE 2. TECHNICAL SPECIFICATIONS
Specification | Description |
Field of view | Oval cone of view (100° horizontal and 90° vertical). 50% of on-axis distance horizontally FoV can extend to 120° (+/-60°) |
Sensitivity | Low 65 ft (20 m), Medium 130 ft (40 m), High 195 ft (59 m), Very High 275 ft (84 m) to 1 ft2 (0.1 m2) n-Heptane fire - Configurable via flame manager |
Response time | Typically, 5 Seconds and a maximum of 10 seconds Under specific conditions, ~3 to 5 seconds is possible. Contact factory for details |
Operating voltage | 24 Vdc nominal (18 Vdc to 32 Vdc) — Regulated |
Power consumption | 1.8 Watts (nominal) 2.4 Watts (alarm) 12 Watts (max) = with heater ON 100 % duty cycle |
Output relays | Alarm, fault, and auxiliary: SPDT1 (NO2/NC3) – de-energized/energized, latching/non-latching rating: 2 A at 32 Vdc |
Analog output | 4-20 mA - Source, sink or isolated (Refer technical manual for wiring configuration) |
Digital communications | Modbus: RS-485 FP2: RS-485 or USB (Honeywell Proprietary Protocol) HART® 7 over 4-20 mA |
Operating temperature | -55°C to +75°C (-67°F to +167°F), North America -50°C to +75°C (-58°F to 167°F) |
Storage temperature | -55° C to +85° C (-67°F to +185° F), North America -50° C to +85° C (-58°F to +185° F) |
Humidity range | 0 % to 99% relative humidity |
Cable/conduit entries | 2 × M25 or 2 × ¾ in NPT |
Enclosure materials | Low copper aluminum with Marine grade paint or electropolished CF8M stainless steel |
Enclosure type | IP 66 / 67 (Type 4X) |
Hazardous location certifications | ATEX: II 2 G Ex db IIC T5 Gb; II 2 D Ex tb IIIC T135° C Db IP66/67; IECEx: Ex db IIC T5 Gb; Ex tb IIIC T135° C Db IP66/67; cFMus: Class I, Div 1 Grps A,B,C,D; Class II/III, Div 1, Grps E,F,G NEMA 4X INMETRO CUTR* CCC* |
Performance certifications | FM 3260 EN 54-10: Class 1 (Medium, High, Very High Sensitivities), Class 2 (Low Sensitivity) |
Safety certification | IEC 61508 SIL 2 certified by TUV Sud |
Marine certifications* | Maritime Type approved to ABS, Lloyds, BV, DNV, MED, USCG |
Weight (excluding accessories) | Aluminum: 1.7 kg (3.7 lb), stainless steel: 3.4 kg (7.4 lb) |
1. Single Pole Double Throw 2. Normally Open 3. Normally Close
TABLE 3. SYSTEM PART NUMBERS
Part Number | Material | Entries | Approvals | Reserved | Included Accessories |
FS20XP- | S = Stainless steel A = Aluminum |
M = M25 N = ¾ in NPT |
G = Global | X = Standard | X = Standard mount + sunshade or M = Marine mount + sunshade |
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