Honeywell FS20X Specifications

Flame Detection

FS20X Fire and Flame Detector

MultiSpectrum UV/Dual IR/VIS Fire and Flame Detector

FS20X Detector

The FS20X is the latest generation high technology Multi Spectrum

(UV/Dual IR/VIS) Fire and Flame Detector, which is part of the FSX

family of advanced technology ElectroOptical Flame detectors.

Based on the foundation of the highly successful and reliable SS 4 detector, the FS20X detector represents a quantum

leap in integrating Infrared and Ultraviolet sensing technologies. The FS20X is a MultiSpectrum and UV/Dual IR/ VIS

fire and flame detector with a proven UV solar-blind sensor. The FS20X exhibits faster false-alarm free response to fires

over a wider temperature range and with a much longer detection range compared to conventional UV/IR detectors.

Conventional and older technology UV/IR detectors, using

narrow band 4.3 micron IR sensors, will not respond to smoky

fires or if the detector lens is contaminated with oil and

other substances since both UV and 4.3 micron signals are

attenuated, obscured or absorbed by thick smoke or detector

lens contaminations. All UV sensors will be attenuated to some

degree. Also, these old technology UV/IR detectors will not alarm

to any fire if they are installed behind ordinary window glass.

Dual microprocessors provide a high level of fail-safe operation combined with fast and reliable

performance.The master microprocessor performs high-speed digital sampling and signal

processing calculations whilst the slave microprocessor handles various sensor data, performs

communications, self-diagnostics and provides interface versatility and additional memory for

storing event log and FirePic™ data. The FS20X detector has a detection range in excess of 60 m

2

(200 feet) (very high sensitivity setting) for the detection of a 0.1m

(one square-foot) Heptane

reference fire and has a cone of vision greater in volumetric coverage than most UV/IR detectors.

This means fewer detectors can be used as compared to other manufacturers’ detectors.

The FS20 detector using advanced patented algorithms for signal processing and fire and flame analysis is

designed to alarm to all types of fires in all industrial environmental conditions. If the detector’s UV signal

is degraded due to heavy smoke or a contaminated lens, the FS20X’s patented WideBand IR™, Near Band

IR and Visible sensors will still alarm to fire, albeit at a reduced sensitivity and slower response time.

GENERAL DIMENSIONS

Side and Back Views
(All Dimensions in mm)

108,9 mm

3/4” NPT

P124,2 mm

FSC

124,2 mm

43,4 mm

59,7 mm

110,4 mm

50,8 mm

26,9 mm

120,6 mm

139,7 mm

156,4 mm

General Specification

GENERAL SPECIFICATIONS

FIELD OF VIEW 90° Horizontal Cone of vision, ± 45° from on axis

SENSITIVITY Very high (60m), high (45m), medium (30m) and low (15m) - switch selectable

RESPONSE TIME

SPECTRAL
SENSITIVITY

OPERATING
VOLTAGE

POWER
CONSUMPTION

ALARM 135 mA @ 24 Vdc nominal

HEATER

OUTPUT RELAYS

ANALOG OUTPUT 0 - 20 mA stepped - source or sink user selectable

LOOP
RESISTANCE

COMMUNICATION

VISUAL
INDICATORS

TEMPERATURE
RANGE

HUMIDITY RANGE 5 to 98% relative humidity, non-condensing

VIBRATION Meets or exceeds MilSpec 810C Method 514.2, Curve AW12

WIRING 2.5 mm

CONDUIT ENTRIES Standard: Two M25 or two ¾” NPT

ENCLOSURE
MATERIALS

ENCLOSURE TYPE 4X, IP66 and NEMA 4

CERTIFICATIONS

SHIPPING WEIGHT

MOUNTING Swivel bracket assembly - optional

WARRANTY Three years from date of shipping

35 Seconds to 0.1 m2 (1 sq. ft.) nHeptane fire at 30 m (100 ft.)
310 Seconds to 0.1 m2 (1 sq. ft.) nHeptane fire at 60 m (200 ft.)

Ultraviolet: 185 - 260 nanometres
Visible: 400 – 700 nanometres
Near Band IR: 0.7 – 1.1 microns
Wide Band IR: 1.1 – 3.5 microns

24 Vdc nominal (1832 Vdc) - regulated

Operating: 85 mA @ 24 Vdc nominal

155 mA – additional
Note: Heater will turn on at 17ºC (0ºF)

Fire Alarm: SPDT (NO / NC) – De-energised/energised, latching/non-latching

Fault: SPST (NO) – De-energised/energised, latching/non-latching

Auxiliary: SPDT (NO / NC) – De-energised/energised, latching/non-latching

Contacts rating: 1 amp @ 24 Vdc

50 - 400 Ohms

One of the following – user selectable:

• RS485, ModBus Protocol

• RS485, FireBus II

• RS485 Special (optional)

• HART, Optional plug-in module (not available on EN5410 units)

Green LED: Power
Red LED: Alarm
Yellow LED: Fault

Operating: 40 to +85ºC (40 to +185ºF)
Storage: 55 to +110ºC (67 to +230ºF)

2

(14 AWG) to 0.326 mm2 (22 AWG); shielded cable recommended

Copper-free powder coated aluminum or 316 stainless steel

FM: Class I, Div. 1 & 2, Groups B, C, & D; Class II, Div. 1 & 2, Groups E, F, & G;

Class III

ATEX/IECEx:

Complies with EN610064 & EN501304

:

INMETRO
CU-TR

China-EX

SIL Rating: FMEDA available on request

EN54-10:

Aluminum: 1.6 kg (3.6 lbs)
Stainless Steel: 3.2 kg (7 lbs)

II 2 G Ex db IIC T4 (Ta: 40 to +110°C), T5 (Ta: 40 to +75°C),

T6 (Ta: 60 to +60°C), II 2 D Ex tb IIIC T135°C

II 2 G Ex db IIC T4 (Ta: 60 to +110°C), T5 (Ta: 60 to +75°C),

T6 (Ta: 60 to +60°C), II 2 D Ex tb IIIC T135°C

FS20X certified 1175a/01 (LPCB); CPR 0832CPRF0515

FEATURES

• Patented WideBand IR™ Infrared combined with
Ultraviolet

• Detection range greater than 60 m (200 feet)
to 0.1 m

• Patented Electronic Frequency Analysis

• Visible sensor for optimum false alarm rejection

• Selectable detection sensitivities

• Solar blind 90° cone-of-vision

• Dual microprocessors for reliable performance

• Real-time clock for accurate time dating
of events

• FirePic™ — Up to 6 pre-fire event data storage

• Event log — Up to 200 events with date and
time stamp

• Built-in RS485 ModBus communication

• Built-in non-isolated 420 mA analog output
(sink or source)

• Alarm, Fault and Fire Verification relays

• Automatic Optical Path and Electronic self-test

• Patented Electronics Module for component
protection with plug-in terminations for easy
field installation

• Two 25 mm conduit entries or two ¾” NPT

• Low power consumption

• High RFI and EMI immunity

• FM hazardous area approved

• Ex d ATEX approved

• CUTR approved

• INMETRO approved

• Meets SIL 2 requirements

• Certified to EN5410:2002 (option)

• FM 3260 performance

BENEFITS

• Detects hydrocarbon and non-hydrocarbon
fuel fires in all environmental conditions

• Wide operating temperature range

• Arc welding immunity

• False alarm rejection

• Minimal maintenance for trouble-free
operation

• PC software and interface module (FSIM) for
fault diagnostics real-time graphs (RTGs), and
downloading of FirePics™ and event log

• Suitable for a wide variety of applications

APPLICATIONS

• Refineries and oil production facilities

• OffShore platforms

• Turbine/Compressor enclosures

• Acetylene processing and storage

• Oil and Gas pipelines and pumping stations

• LNG/LPG loading and unloading facilities

• Natural Gas and CNG plants

• Ethanol, Methanol, and IPA production
and storage

• Crude oil and gasoline storage and tank farms

• Aircraft hangars

• Hydrogen plants and storage

• Paint and solvent storage

•

Chemical production, storage, and loading facilities

• Power plants

• Silane gas storage

2

(1 sq. ft.) heptane fire

Honeywell Gas and Flame Detection

Honeywell Gas and Flame Detection is able to provide gas detection solutions to meet the

requirements of all applications and industries. Contact us in the following ways:

HEADQUARTERS

Europe, Middle East, Africa

Life Safety Distribution GmbH
Javastrasse 2
8604 Hegna u
Switzerland
Tel: [phone]
Fax: + 41 (0)44 943 4398
gasdetection@honey well.com

Customer Service:

Tel: [phone] ( Freephone numb er)
Tel: [phone] (A lternative nu mber)
Fax: [phone]
Middle East Tel: [phone] (Fixed Ga s
Detection)
Middle East Tel: [phone] (Portable G as
Detection)

Americas

RAE Systems by H oneywell
3775 North Fir st Street
San Jos e, CA 95134
USA
Tel: [phone]
Honeywell Analytics Distribution Inc.
405 Barclay Blvd.
Lincol nshire, IL 60069
USA
Tel: [phone]
Toll free: [phone]
Fax: [phone]
detectgas@honey well.com

Asia Pacific

Honeywell Industrial Safety
7F SangA m IT Tower,
434, Worldcupbuk-ro, Mapo-gu,
Seoul 03922,
Korea
Tel: [phone]
Fax: + 82 (0) 2 2025 0328
India Tel: [phone]
China Tel: [phone] 3000
[e-mail]

www.honeywellanalytics.com
www.raesystems.com

Pleas e Note:

While ev ery effor t has been made to ensure accuracy in this publication, no
responsibilit y can be accept ed for errors or o missions. Data may change , as well
as legislation, an d you are strongl y advised to obt ain copies of the m ost recentl y
issue d regulation s, standards , and guideline s. This public ation is not inten ded to
form the basis of a cont ract.

F S20 X_ DS 011 25 _V5 _0 117_E ME A
01/17
© 2017 Honeywel l Analytic s