1.General Introduction

Honeywell FS20X flame detector is a Multi-Spectrum and UV/Dual IR/VIS Flame Detector with a proven UV solar-blind sensor, 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. The FS20X Flame Detector has a detection range in excess of 200 feet (very high sensitivity setting) for the detection of a 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 FS20X Flame Detector uses 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 but at a reduced sensitivity and slower response time.

2.General Specifications

Items

Description

Field of view

90° Full 100% Cone of vision, ± 45° from   on axis

Sensitivity

Very High, High, Medium and Low – Switch   Selectable

Response time

3-5 Seconds to 1 sq. ft. n-Heptane fire   at 100 ft.

3-10 Seconds to   1 sq. ft. n-Heptane fire at 200 ft.

Spectral   sensitivity

Ultraviolet: 185 - 260 nanometers

Visible: 400 – 700 nanometers

Near Band IR: 0.7 – 1.1 microns

Wide Band IR:   1.1 – 3.5 microns

Operating   voltage

24 VDC nominal   (18-32 VDC) - Regulated

Power   consumption

Operating: 83mA @ 24 VDC nominal

Alarm

133mA @ 24 VDC nominal

Heater

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

Output relays

Fire Alarm: SPDT (NO / NC) –   De-Energized/Energized, Latching/Non-Latching

Fault: SPST (NO) – Normally Energized,   Latching/Non-Latching

Auxiliary: SPDT (NO / NC) –   De-Energized/Energized, Latching/Non-Latching

Contacts rating: 1 amp @ 24 VDC

Analog output

0 - 20mA stepped - source or sink user   selectable

Loop resistance

50 - 400 Ohms

Communication

RS-485, ModBus Protocol

RS-485, FireBus II

RS-485 Special (optional)

HART, Optional plug-in module

Visual   indications

Green LED: Power

Red LED: Alarm

Yellow LED: Fault

Temperature   range

Operating: -40℉to +185℉ (-40℃ to +85℃);

Storage: -67℉ to +230℉(-55℃ to +110℃)

Humidity range

5 to 98% relative humidity,   non-condensing

Vibration

Meets or exceeds Mil Spec 810C Method   514.2, Curve AW12

Wiring

14 AWG (2.5mm2) to 22 AWG (0.326mm2);   Shielded Cable Recommended

Conduit entries

Standard: Two M25 or two 3/4" NPT

Enclosure   materials

Copper-free powder coated aluminum or   316 stainless steel

Enclosure type

IP66 and NEMA 4 & 4X

Certifications

FM, ATEX, CE

Shipping weight

Aluminum: 1.6 kg (3.6 lbs)

Stainless steel: 3.2 kg (7 lbs)

Mounting

Swivel bracket assembly - optional

Warranty

Three years from date of shipping

 

3.Quick Reference Chart

FS24X-2

FS24X-9

FS20X

FS10

SPECTRALSENSITIVITY

Ultraviolet Band   (0.18 - 0.26 μ)

√

Visible Band   (0.4 - 0.7 μ)

√

√

√

√

Near Band IR   (0.7 μ – 1.1 μ)

√

√

√

√

Wide Band IR1   (1.1 – 3 μ)

√

√

√

√

Wide Band IR1   (1.1 – 3.5 μ)

√

Wide Band IR2   (3.0 – 5.0 μ)

√

√

SENSITIVITY(feet)

Very High

200+

200+

200+

60

High

150

150

150

45

Medium

100

100

100

30

Low

50

50

50

15

RESPONSE

Fireball / Quick   Response Option (< 500 mS)


√

Acetylene Long   Range Option

√

OTHER

Field of View   (conical)

110°

90°

90°

90°

HART Option

√

√

√

Modbus Built-In

√

√

√

ENCLOSURES

Aluminum Class   I, Div._1

√

√

√

√

316 Stainless   Steel Class I, Div._1

√

√

√

√

APPROVALS

FM

√

√

√

√

cFM

√

√

√

√

ATEX

√

√

√

√

IECEx

√

√

√

√

INMETRO

√

√

√

GOST-R

√

√

√

SIL 2 Compliant

√

√

TEST   LAMPS/SOURCE

TL-2055

√

√

√

TL-1055

√

√

√

FS-846-B


√

MOUNT

SM4 bracket

√

√

√

√

 

4.Order Code Selection 

Part No.

Description

FS20X-211 Series, standard temp range -40° to 85°C

FS20X-211-21-2

DUAL IR/UV Detector Copper-Free Aluminum   Encl. with (2) 3/4" NPT entries, FM, cFM for Class I, Division 1, Groups   A, B, C, D; Class II, Division 1, Groups E, F, G; Class III

FS20X-211-22-2

DUAL IR/UV Detector 316 Stainless Steel   Encl. with (2) 3/4" NPT entries, FM, cFM for Class I, Division 1, Groups   A, B, C, D; Class II, Division 1, Groups E, F, G; Class III

FS20X-211-23-3

DUAL IR/UV Detector Copper-Free Aluminum   Encl. with (2) M25 entries, FM, cFM, ATEX, IECEx for Class I, Zone 1

FS20X-211-24-3

DUAL IR/UV Detector 316 Stainless Steel   Encl. with (2) M25 entries, FM, cFM, ATEX, IECEx for Class I, Zone 1

FS20X-211-21-4

Dual IR/UV Detector Copper-Free Aluminum   Encl. with (2) 3/4 in. NPT entries, INMETRO

FS20X-211-22-4

Dual IR/UV Detector 316 Stainless Steel   Encl. with (2) 3/4 in. NPT entries, INMETRO

FS20X-211-23-4

DUAL IR/UV Detector Copper-Free Aluminum   Encl. with (2) M25 entries, INMETRO

FS20X-211-24-4

DUAL IR/UV Detector 316 Stainless Steel   Encl. with (2) M25 entries, INMETRO

FS20X-212 Series with Hart, standard temp range   -40° to 85°C

FS20X-212-21-2

Dual IR/UV copper-free aluminum encl.   with (2) 3/4 in. entries, FM/cFM, HART module factory installed

FS20X-212-22-2

Dual IR/UV 316 stainless steel encl.   with (2) 3/4 in. entries, FM/cFM, HART module factory installed

FS20X-212-23-3

Dual IR/UV copper-free aluminum encl.   with (2) M25 entries, ATEX/IECEx, HART module factory installed

FS20X-212-24-3

Dual IR/UV 316 stainless steel encl.   with (2) M25 entries, ATEX/IECEx, HART module factory installed

FS20X-212-21-4

Dual IR/UV copper-free aluminum encl.   with (2) 3/4 in. NPT entries, INMETRO. HART Module factory installed

FS20X-212-22-4

Dual IR/UV stainless steel encl. with   (2) 3/4 in. NPT entries, INMETRO. HART Module factory installed

FS20X-212-23-4

Dual IR/UV copper-free aluminum encl.   with (2) M25 entries, INMETRO, HART module factory installed

FS20X-212-24-4

Dual IR/UV 316 stainless steel encl.   with (2) M25 entries, INMETRO, HART module factory installed

Test and Mount   accessories

FSX-A014

Optional HART Module for FS20X Detectors

FVR-01

Field of View Restrictor

PSU-12

Universal charger for Fire Sentry Test   Lamps and Interface Kits. For 110-240 VAC with international plugs

SH-001

Sunshield for SS2, SS4 & FS24X   Detectors, 316 Stainless Steel

SM4

Stainless Steel Swivel mounting assembly   for FS24X, FS20X, SS4, SS2 detectors

TL-1055

IR Test lamp for testing FSX detectors,   non-explosion proof version. Including universal charger

TL-2055

IR Test lamp for testing FSX detectors,   explosion proof version. Including universal charger

Replacement Detector   Module for FS20X

FS20X-211-10

FS20X Replacement Detector Module

FS20X-212-10

FS20X Replacement Detector Module w/HART

Replacement spare parts

FSX-A006

Replacement IR Bulb for TL1055 and   TL2055

FSX-A011

Grill Kit for the FS20X

PW-3123-0005

Battery Pack for FT-2145/TL-1055/TL-2055   Test Lamp