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Product Features
  • Diversity of detection
  • All-in-one device
  • Simplified installation with accessories included
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Honeywell FS20X Plus Flame Detection

SKU
Honeywell-FS20XPlus

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

  • DIVERSITY OF DETECTION - Able to see a variety of Hydrocarbon, non-Hydrocarbon, and Hydrogen fires in a single device. No need to specify or stock a specialty flame detector. 
  • ALL-IN-ONE DEVICE - Communication options such as Modbus, HART® 7, Relays, and mA (source, sink, or isolated) are included as standard. Multiple, global certifications are listed on each device. No need for complex ordering codes or spare parts strategy. 
  • AT-A-GLANCE INSTRUMENT STATUS - FSX20 Plus has a high visibility LED Halo ring that can be seen from a distance to show instrument status.
  • SIMPLIFIED INSTALLATION WITH ACCESSORIES INCLUDED - FS20X Plus includes the SM4 mount and enhanced SH-002 sunshade as standard, which enables easier mechanical installation and ordering. A marine version mount (SM4-M) is also available. 
  • SIMPLIFIED MAINTENANCE - FS20X Plus is supported by a PC App (FlameManager) and HART for set-up. FlameManager includes post event analysis with powerful Honeywell FirePic tool. The internal opto-electronics module can be quickly swapped in the field if needed. 

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.

  • Ultraviolet from 0.18 µm to 0.26 µm
  •  Near-band IR from 0.7 µm to 1.1 µm
  •  Wide-band IR from 0.7 µm to 4.2 µm
  • Long-band IR from 3.0 µm to 5.0 µm

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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