Spectrex 40-40I User Manual

FM, CSA Approved

Class I Div. 1 Groups B, C, D

Class II/III Div. 1 Groups E, F, G

ATEX, IECEx Approved

Ex II 2 GD, Exde IIC T5 (75°C)

Document ref: TM 40/40I, Rev (6) July 2013

218 Little Falls Rd., Cedar Grove, NJ 07009, USA

Phone: [phone] Fax: [phone]

Web-Site: www.spectrex.net; Email: [e-mail]

Model 40/40I

Triple IR (IR3) Flame Detector

User Guide

SharpEyeTM IR3 Flame Detector User Guide

ii

Legal Notice

Warning: This manual should be read carefully by all individuals
who have or will have responsibility for using, maintaining or
servicing the product.

The Detector is not field-repairable due to the meticulous
alignment and calibration of the sensors and the respective
circuits. Do not attempt to modify or repair the internal circuits
or change their settings, as this will impair the system's
performance and void the Spectrex, Inc. Product warranty.

The SharpEye Optical Flame Detector described in this document is the property of Spectrex,
Inc.

No part of the hardware, software or documentation may be reproduced, transmitted,
transcribed, stored in a retrieval system or translated into any language or computer language,
in any form or by any means, without prior written permission of Spectrex, Inc.

While great efforts have been made to assure the accuracy and clarity of this document,
Spectrex, Inc. assumes no liability resulting from any omissions in this document, or from
misuse of the information obtained herein. The information in this document has been carefully
checked and is believed to be entirely reliable with all of the necessary information included.
Spectrex Inc. reserves the right to make changes to any products described herein to improve
reliability, function, or design, and reserves the right to revise this document and make
changes from time to time in content hereof with no obligation to notify any persons of
revisions or changes. Spectrex, Inc. does not assume any liability arising out of the application
or any use of any product or circuit described herein; neither does it convey license under its
patent rights or the rights of others

Warranty

SPECTREX INC. Agrees to extend to Purchaser/Distributor a warranty on the SPECTREX
supplied components of the SharpEye products. SPECTREX warrants to Purchaser/Distributor
that the products are free from defects in materials and workmanship for a period of five (5)
years, commencing with the date of delivery to Purchaser/Distributor. SPECTREX expressly
excludes damage incurred in transit from the factory or other damage due to abuse, misuse,

improper installation, or lack of maintenance or “Act of God” which are above and beyond its

control. SPECTREX will, upon receipt of any defective product, transportation prepaid, repair or
replace it at its sole discretion if found to have been defective when shipped. Said repair or

replacement is SPECTREX’S sole liability under this warranty and SPECTREX’S liability shall be

limited to repair or replacement of the component found defective and shall not include any
liability for consequential or other damages. The customer is responsible for all freight charges
and taxes due on shipments both ways. This warranty is exclusive of all other warranties
express or implied.

Legal Notice iii

SharpEyeTM IR3 Flame Detector User Guide

Rev

Date

Revision History

Prepared by

Approved by

0

May 20, 2008

First Release

Ian Buchanan

Eric Zinn

1

Sept 22, 2008

Second Release

Ian Buchanan

Eric Zinn

2

July, 2010

Third Release

Ian Buchanan

Eric Zinn

3

August 2010

Fourth Release

Ian Buchanan

Eric Zinn

4

November 2010

Fifth Release

Ian Buchanan

Eric Zinn

5

February 2013

Sixth Release

Ian Buchanan

Eric Zinn

6

July 2013

Seventh Release

Ian Buchanan

Eric Zinn

Release History

iv

About this Guide

This guide describes the SharpEye Model 40/40I Triple IR (IR3) Flame
Detector and its features and provides instructions on how to install, operate
and maintain the detector.

This guide includes the following chapters and appendixes:
 Chapter 1, Introduction, provides a general overview of the product,

principles of operation, and performance considerations.

 Chapter 2, Installing the Detector, describes how to install the

detector including preparations before installation, wiring and mode
settings.

 Chapter 3, Operating the Detector, describes how to power-up and

test the detector. The chapter also lists safety precautions you should
take when operating the detector.

 Chapter 4, Maintenance and troubleshooting, describes basic

maintenance procedures, and troubleshooting and support procedures.

 Appendix A, Technical Specifications: Lists the detectors technical

and other specifications.

 Appendix B, Wiring Instructions, lists the wiring instructions for

connecting the detector and also provides examples of typical wiring
configurations.

 Appendix C, RS-485 Communication Network, provides an overview

of the RS-485 communications network.

 Appendix D, Accessories, describes the accessories available for the

detector.

 Appendix E, SIL-2 Features, describes the special conditions to

comply with the requirements of EN 61508 for SIL 2 according to TUV.

About this Guide v

SharpEyeTM IR3 Flame Detector User Guide

Abbreviation

Meaning

ATEX

Atmosphere Explosives

AWG

American Wire Gauge

BIT

Built In Test

EMC

Electromagnetic Compatibility

EOL

End of Line

FOV

Field of View

HART

Highway Addressable Remote Transducer­communication protocol

IAD

Immune at Any Distance

IECEx

International Electrotechnical Commission Explosion

IPA

Isopropyl Alcohol

IR

Infrared

JP5

Jet Fuel

Latching

Refers to relays remaining in the ON state even after the
ON condition has been removed

LED

Light Emitting Diode

LPG

Liquefied Petroleum Gas

mA

MilliAmps (0.001 amps)

MODBUS

Master-slave messaging structure

N.C.

Normally Closed

N.O.

Normally Open

N/A

Not Applicable

NFPA

National Fire Protection Association

NPT

National Pipe Thread

SIL

Safety Integrity Level

UNC

Unified Coarse Thread

VAC

Volts Alternating Current

Abbreviations and Acronyms

vi Abbreviations and Acronyms

Table of Contents

Model 40/40I Triple IR (IR3) Flame Detector User Guide ................................ i

Legal Notice .................................................................................................... iii

Warranty ........................................................................................................ iii

Release History ............................................................................................... iv

About this Guide .............................................................................................. v

Abbreviations and Acronyms ............................................................................. vi

1 Introduction .............................................................................................. 1

1.1 Overview .............................................................................................. 1

1.2 Model and Types .................................................................................... 2

1.3 Features and Benefits ............................................................................. 4

1.4 Principles of Operation ............................................................................ 4

1.4.1 Hydrocarbon Fire Detection ............................................................... 4

1.4.2 Heated Optics .................................................................................. 5

1.4.3 HART Protocol ................................................................................. 5

1.4.4 RS-485 Modbus ............................................................................... 6

1.4.5 Product Certification ......................................................................... 6

1.5 Performance Considerations .................................................................... 7

1.5.1 Detection Sensitivity ........................................................................ 7

1.5.2 Cone of Vision ................................................................................ 10

1.5.3 False Alarms Prevention ................................................................... 11

1.5.4 Visual Indicators ............................................................................. 12

1.5.5 Output Signals ................................................................................ 13

1.5.6 Detector Status .............................................................................. 14

1.5.7 Auxiliary Relay as End-of-Line Resistor .............................................. 15

1.6 Internal Detector Tests .......................................................................... 15

1.6.1 Continuous Feature Test .................................................................. 15

1.6.2 Built-In-Test (BIT) .......................................................................... 16

2 Installing the Detector ............................................................................ 19

2.1 General Guidelines ................................................................................ 19

2.2 Unpacking the Product ........................................................................... 20

2.2.1 Checking the Product Type ............................................................... 20

2.3 Required Tools ...................................................................................... 21

2.4 Certification Instructions ........................................................................ 22

Table of Contents vii

SharpEyeTM IR3 Flame Detector User Guide

2.5 Installation Cables ................................................................................ 23

2.5.1 Conduit Installation ......................................................................... 23

2.6 Installing the Tilt Mount (part no. 40/40-001) .......................................... 24

2.6.1 Tilt Mount Assembly ........................................................................ 25

2.7 Connecting the Detector ........................................................................ 26

2.7.1 Verifying the Detector Wiring ........................................................... 28

2.8 Configuring your Detector ...................................................................... 29

2.8.1 Sensitivity ...................................................................................... 30

2.8.2 Alarm Delay ................................................................................... 30

2.8.3 Address Set-up ............................................................................... 30

2.8.4 Function Set-up .............................................................................. 31

2.8.5 Heated Optics ................................................................................. 32

3 Operating the Detector ............................................................................ 33

3.1 Powering Up ......................................................................................... 33

3.2 Safety Precautions ................................................................................ 34

3.2.1 Default Functions Settings ............................................................... 34

3.3 Testing Procedures ................................................................................ 35

3.3.1 Automatic BIT Test ......................................................................... 35

3.3.2 Manual BIT Test .............................................................................. 35

3.3.3 Testing with Fire Simulator Model 20/20-310 ..................................... 35

4 Maintenance and Troubleshooting ........................................................... 37

4.1 Maintenance ......................................................................................... 37

4.1.1 General Procedures ......................................................................... 37

4.1.2 Periodic Procedures ......................................................................... 38

4.1.3 Keeping Maintenance Records .......................................................... 38

4.2 Troubleshooting .................................................................................... 39

Appendices .................................................................................................... 41

A Specifications .......................................................................................... 43

A.1 Technical Specifications ......................................................................... 43

A.2 Electrical Specifications .......................................................................... 44

A.3 Outputs ............................................................................................... 44

A.4 Approvals............................................................................................. 46

A.5 Mechanical Specifications ....................................................................... 47

A.6 Environmental Specifications .................................................................. 47

viii Table of Contents

TM 40/40I, Rev (6) July 2013

B Wiring Instructions.................................................................................. 49

B.1 General Instructions for Electrical Wiring .................................................. 49

B.2 Typical Wiring Configurations ................................................................. 51

C RS-485 Communication Network ............................................................. 55

C.1 RS-485 Overview .................................................................................. 55

D Accessories .............................................................................................. 57

D.1 Long Range IR3 Fire Simulator ............................................................... 57

D.1.1 Unpacking ...................................................................................... 58

D.1.2 Operating Instructions ..................................................................... 58

D.1.3 Range ........................................................................................... 59

D.1.4 Charging the Battery ....................................................................... 59

D.1.5 Technical Specifications ................................................................... 60

D.2 Tilt Mount - P/N 40/40-001 .................................................................... 60

D.3 Duct Mount P/N 777670 ......................................................................... 61

D.4 Weather Protection - P/N 777163 ............................................................ 62

D.5 Laser Detection Coverage Pointer - P/N 777166 ........................................ 63

D.6 Air Shield - P/N 777650 ......................................................................... 64

E SIL-2 Features ......................................................................................... 65

E.1 40/40I Flame Detector .......................................................................... 65

E.1.1 Safety Relevant Parameters ............................................................. 65

E.1.2 Guidelines for Configuring, Installing, Operating and Service ................ 65

Technical Support ......................................................................................... 68

Table of Contents ix

SharpEyeTM IR3 Flame Detector User Guide

List of Figures

Figure 1: Horizontal Field of View ........................................................................ 10

Figure 2: Vertical Field of View ............................................................................ 10

Figure 3: Indication LED ..................................................................................... 12

Figure 4: Detector with Tilt Mount ....................................................................... 24

Figure 5: Tilt Mount Assembly ............................................................................. 25

Figure 6: Tilt Mount Assembly (dimensions in mm and inches) ................................ 25

Figure 7: Detector with Cover Removed ............................................................... 27

Figure 8: Wiring Terminals ................................................................................. 51

Figure 9: Typical Wiring for 4 Wire Controllers (Using Option 1 or 2 Wiring) ............. 52

Figure 10: 0-20mA Wiring Option 1 (Sink 4-Wire) - Default .................................... 53

Figure 11: 0-20mA Wiring Option 1 (Converted to Source 3-Wire) .......................... 53

Figure 12: 0-20mA Wiring Option 1 (Non-isolated Sink 3-Wire) ............................... 54

Figure 13: 0-20mA Wiring Option 2 and 3 (Source 3-Wire available

with the HART Protocol) .................................................................................... 54

Figure 14: RS-485 Networking ............................................................................ 55

Figure 15: SharpEye Long Range Fire Simulator 20/20-310 .................................... 57

Figure 16: 40/40I IR3 Detector Target Point ......................................................... 58

Figure 17: Tilt Mount ......................................................................................... 60

Figure 18: Duct Mount ....................................................................................... 61

Figure 19: Weather Protection ............................................................................ 62

Figure 20: Laser Detection Coverage Pointer ........................................................ 63

Figure 21: Air Shield .......................................................................................... 64

x List of Figures

TM 40/40I, Rev (6) July 2013

List of Tables

Table 1: Wiring Options ...................................................................................... 3

Table 2: Sensitivity Range Levels ......................................................................... 8

Table 3: Fuel Sensitivity Ranges ........................................................................... 9

Table 4: Immunity to False Alarm Sources ........................................................... 11

Table 5: Welding Immunity Distance ................................................................... 12

Table 6: LED Indications .................................................................................... 12

Table 7: Available Output Types .......................................................................... 13

Table 8: Detector Status .................................................................................... 14

Table 9: Output Signals versus Detector State ...................................................... 14

Table 10: Results of a Successful BIT................................................................... 17

Table 11: Results of an Unsuccessful BIT ............................................................. 17

Table 12: Results of a Successful Manual BIT ........................................................ 18

Table 13: Results of an Unsuccessful Manual BIT .................................................. 18

Table 14: Tools ................................................................................................. 21

Table 15: Model 40/40I Wiring Options ................................................................ 28

Table 16: Sensitivity Settings ............................................................................. 30

Table 17: Functions ........................................................................................... 31

Table 18: Default Function Values ....................................................................... 34

Table 19: Results of Successful Fire Simulator Test ............................................... 36

Table 20: Troubleshooting Table ......................................................................... 39

Table 21: Electrical Specifications ........................................................................ 44

Table 22: Contact Ratings .................................................................................. 45

Table 23: 20 mA Current Output ......................................................................... 45

Table 24: Electromagnetic Compatibility (EMC) ..................................................... 48

Table 25: Maximum DC resistance at 68°F (20ºC) for copper wire ........................... 49

Table 26: Wiring length in feet (meter) ................................................................ 50

Table 27: Wiring Connections ............................................................................. 52

Table 28: Sensitivity Ranges ............................................................................... 59

List of Tables xi

SharpEyeTM IR3 Flame Detector User Guide

xii List of Tables

1 Introduction

Overview

page 1

Model and Types

page 2

Features and Benefits

page 4

Principles of Operation

page 4

Performance Considerations

page 7

Internal Detector Tests

page 15

➣ In this chapter…

1.1 Overview

The SharpEye 40/40I is a flame detector that utilizes improved IR3
technology to provide state-of-the-art fire protection. The 40/40I uses
patented digital signal processing to analyze the spectral and dynamic
characteristics of the measured infrared radiation, to identify fire events
with exceptional sensitivity and extreme immunity to false alarms.

All 40/40 series detectors include a heated optical window for improved
performance in icing, snow and condensation conditions.

Detection performance can be easily adapted to all environments,

applications and requirements, by changing the detector’s configuration

parameters. Adjusting these parameters, as well and performing other
maintenance and monitoring tasks, is possible by means of RS485-based
Modbus communication or HART communication (in models with 0-20mA
output).

The detector enclosure is ATEX certified Exd flameproof with an integral,
segregated, rear, Exe terminal compartment (avoiding exposure of the
sensors and electronics to surrounding environment). Hence the combined
approval:

Ex II 2 G D
Ex de IIC T5 Ta -55°C to +75°C
Ex tD A21 IP66/X7 T95°C

or
Ex de IIC T4 Ta -55°C to +85°C

Ex tD A21 IP66/X7 T105°C
The SharpEye 40/40 detectors are designed to operate as a stand-alone unit

directly connected to an alarm system or an automatic fire extinguishing
system. The detector can also be a part of a more complex system, where
many detectors and other devices are integrated through a common control
unit.

Overview 1

SharpEyeTM IR3 Flame Detector User Guide

*

40/40I X XX X X

Ex Approval

Wiring
Configuration

Temperature

Electrical
Entries

Housing

F – FM / CSA
C - ATEX / IECEx

1 - 75°C
2 - 85°C

1 - M25
2 - ¾" NPT

See Table 1

S - Stainless Steel
A - Aluminum

1.2 Model and Types

The 40/40I is provided in various configurations depending on:

 Wiring options
 Temperature ranges
 Type of cable entries
 Housing type
 Required approval

The configuration detail is included in the product part number on the
product label and takes the form: 40/40I XXXXX, where XXXXX defines the
model according to the above requirements.

To modify the default or pre-ordered configuration and perform
maintenance tasks, please refer to the HART Protocol TM777030, the
RS-485 Manual TM 777050 or TM777070.

The Part Numbers are defined as:

Note: *Aluminum housing is available in ATEX/IECEx version only.
Table 1 describes the wiring options in detail.

2 Model and Types

TM 40/40I, Rev (6) July 2013

Wiring
Option

Connections Provided

1

Power

Manual

BIT

Fault

Relay

N.C.

Alarm

Relay

N.O.

0-20mA

Sink

RS-485

-

2

Power

Manual

BIT

Fault

Relay

N.C.

Alarm

Relay

N.O.,

N.C.

0-20mA

Source

RS-485

HART

3

Power

Manual

BIT

Fault

Relay

N.O.

Alarm

Relay

N.O.,

N.C.

0-20mA

Source

RS-485

HART

4

Power

Manual

BIT

Fault

Relay

N.C.

Alarm

Relay

N.O.

Auxiliary

N.O.

RS-485

-

5

Power

Manual

BIT

Fault

Relay

N.O.

Alarm

Relay

N.O.

Auxiliary

N.O.

RS-485

-

Table 1: Wiring Options

Note: Wiring option 1 is default. The mA 'Sink' output can be altered to

'Source' type, with a link between terminals 1 and 8. No other wiring options
can be changed on site.

For example, product number 40/40I-321SC has the following options:
 Wiring Option: 3 (Power, Manual BIT, RS-485, 0-20mA (Source) with

the HART protocol, Fault Relay (N.O.), Alarm Relay (N.O., N.C.))

 Temperature Range: 2 (85°C)
 Cable Entry: 1 (M25)
 Housing : S (Stainless Steel)
 Approval: C (ATEX, IECEx)

Note: Check your specific part numbers against the information in Checking
the Product Type on page 20.

Model and Types 3

SharpEyeTM IR3 Flame Detector User Guide

1.3 Features and Benefits

 Detection Range: Up to 215 ft. (65m) for a 1 ft2 (0.1m2) n-heptane fire.
 Ultra High Immunity to False Alarms: See Table 4 on page 11.
 Advanced Digital Processing of the Dynamic Characteristics of Fire:

Flickering, threshold correlation and ratio.

 Multi IR Channels: Between 2-5 microns.
 Field Programmable Sensitivity: Four ranges to avoid zone crossover.
 Built In Test (BIT): Manual and Automatic (see Built-In-Test (BIT) on

page 16).

 Heated Window: Prevents effects of icing, snow, condensation.
 Electrical Interface:

 Dry contact relays
 Communication network RS-485

 0-20mA output
 HART Protocol: Communication protocol (see HART Protocol on page 5).
 Exde: Integral junction box for easy wiring.
 SIL-2: TÜV approved.
 Hazardous Area Certification: ATEX, IECEx, FM, CSA.
 Functionality Approval:

 EN54-10 approved by VdS

 FM approved per FM3260

1.4 Principles of Operation

This section describes the 40/40I principles of operation and includes:

 Hydrocarbon Fire Detection, page 4
 Heated Optics, page 5
 HART Protocol, page 5
 RS-485 Modbus, page 6
 Product Certification, page 6

1.4.1 Hydrocarbon Fire Detection

The SharpEye 40/40I detector is designed to detect flames in which carbon
dioxide (CO2) is produced in the combustion process. These include all
hydrocarbon flames, as well as other types of flames and burning materials
such as wood or alcohol.

4 Features and Benefits

TM 40/40I, Rev (6) July 2013

The detector’s principle of operation is based on patented IR3 technology.
This technology identifies the unique spectral signature that hot CO2 has in
the infrared (IR), namely a peak of the intensity at wavelengths 4.2 to 4.7µ.

The original IR3 technique (such as implemented in the SharpEye 20/20I
flame detector) utilizes three infrared sensors, each sensitive to its own
wavelength range. The first sensor is sensitive to wavelengths within the
emission peak of hot CO2. The other two sensors are sensitive to
wavelengths above and below this peak. In the event of fire, the signal
measured in the first sensor is significantly higher than those measured in
the other two sensors. In order to issue a fire alarm, the detector requires
that this occurs, as well as other conditions (for example, radiation is
flickering in frequencies typical of flames). If exposed to non-fire radiation
sources, the specific conditions required does not occur, and the detector
does not react.

The SharpEye 40/40I further includes an additional IR sensor, sensitive to a
different band within the emission peak of hot CO2. The signal of this sensor
is compared to those of the other three. This increases sensitivity for some
types of flames. (For example, gas flames).

1.4.2 Heated Optics

The SharpEye 40/40 Flame Detectors use heated optics. The heater
increases the temperature of the optical surface by 5-8°F (~3-5°C) above
the ambient temperature to improve performance in icing, condensation and
snow conditions.

The heated optics can be set to one of the following:

 Not operated
 On continuously
 Automatic, per temperature change (default): you can define the start

temperature below which the window is heated. (The default is 41°F

(5°C).) This temperature can be defined between 32°F (0°C) to 122°F

(50°C). The heating stops when the temperature is 27°F (15°C) above

the start temperature.
For more information, see Configuring your Detector on page 29.

1.4.3 HART Protocol

The 40/40 Flame Detectors use the HART protocol.
HART Communication is a bi-directional industrial field communication

protocol used to communicate between intelligent field instruments and host
systems. HART is the global standard for smart process instrumentation and
the majority of smart field devices installed in plants worldwide are HART­enabled. HART is available in wiring options 2 and 3, see Table 1, page 3.

HART technology is easy to use and very reliable.

Principles of Operation 5

SharpEyeTM IR3 Flame Detector User Guide

Through the HART connection, you are able to perform:

 Detector set-up
 Detector troubleshooting
 Detector health and status

For more details, refer to the HART Manual TM 777030.

1.4.4 RS-485 Modbus

For more advanced communications, the 40/40I detector has an RS 485
Modbus-compatible output that provides data communication from a
network (up to 247 detectors) to a host computer or universal controller for
central monitoring. This feature allows for reduced installation costs, easy
maintenance and local or remote diagnostic tools.

1.4.5 Product Certification

The 40/40I Flame Detectors have the following certifications:

 ATEX, IECEx, page 6
 FM, CSA, page 6
 SIL-2 Approved, page 7
 EN54-10, page 7

1.4.5.1 ATEX, IECEx

The 40/40I Flame Detector is certified to:

 ATEX Ex II 2 GD per SIRA 07ATEX1250 and IECEx SIR. 07.0085
 Ex de IIC T5 Ta -55°C to +75°C

Ex tD A21 IP66/X7 T95°C
 Ex de IIC T4 Ta -55°C to +85°C

Ex tD A21 IP66/X7 T105°C
This product is suitable to use in hazardous zones 1 and 2 with IIC gas

group vapors present.

1.4.5.2 FM, CSA

The 40/40I Flame Detector is certified to FM and CSA Explosion Proof and
Functionality per FM3260:

 Class I, Division 1, Groups B, C and D, T5 Ta = 85°C.
 Dust Ignition Proof – Class II/III Division 1, Groups E, F and G.
 Ingress Protection – IP67, IP66, NEMA 250 Type 6P.
 Fuel Test Response including: Gasoline, N-Heptane, Diesel, JP5,

Kerosene, Ethyl, Alcohol 95%, IPA, Methanol, Methane, LPG,

Polypropylene, and Paper.

6 Principles of Operation

TM 40/40I, Rev (6) July 2013

 For more details see FM Report Project ID3029553, and CSA Report no.

2451134.

1.4.5.3 SIL-2 Approved

The 40/40I Flame Detector is certified to SIL-2 requirement per IEC

61508.4, Chapter 3.5.12.
The alert condition according to SIL-2 can be implemented by:
 Alert signal via 0-20mA current loop.

or

 Alert signal via alarm relay and fault relay.
 For more details and guidelines for configuring, installing, operating and

service – see SIL-2 Features on page 65 and TÜV Report No.

968/EZ348.00/009.

1.4.5.4 EN54-10

The 40/40I Flame Detector is certified to EN54-10 and CPD.

 The detector has been tested and approved per EN54-10 by VdS.
 This test includes functional test, environmental test, EMI/EMC test and

software check.
 For more details see VdS Report No. BMA 12118.

1.5 Performance Considerations

This section describes performance aspects of the 40/40I and includes:

 Detection Sensitivity, page 7
 Cone of Vision, page 10
 False Alarms Prevention, page 11
 Visual Indicators, page 12
 Output Signals, page 13
 Detector Status, page 14
 Auxiliary Relay as End-of-Line Resistor, page 15

1.5.1 Detection Sensitivity

Detection sensitivity is the maximum distance at which the detector reliably
detects a specific size of fire and typical type of fuel (standard fire).

1.5.1.1 Standard Fire

Defined as a 1ft2 / 0.1m2 n-heptane pan fire, with maximum wind speed of

6.5 ft./sec (2 m/sec).

Performance Considerations 7

SharpEyeTM IR3 Flame Detector User Guide

Level

Response Time (sec)

Sensitivity Range- ft. (m)

1

3

50 (15)

2 Default 5 100 (30)

3

8

150 (45)

4

10

215 (65)

1.5.1.2 Sensitivity Ranges

The detector has four user-selectable sensitivity ranges. For each range
there are two response levels.

 WARNING (Pre-alarm)
 ALARM

The detection distance, for the WARNING level, is approximately 10% higher
than the ALARM distance.

Alarm response times for a standard fire at a specified range are shown
Table 2.

Table 2: Sensitivity Range Levels

For some typical ambient conditions the Zeta parameter as defined in NFPA
72 for the detector is 0.005 (1/meter).

Note: Zeta parameters may vary significantly with changes in temperature,
air pressure, humidity, visibility conditions, and so on.

8 Performance Considerations

TM 40/40I, Rev (6) July 2013

Type Of Fuel

Percent of Max. Distance

at each Sensitivity Range

Max. Distance

(ft./m)

Gasoline

100%

215 / 65

N-Heptane

100%

215 / 65

JP5

70%

150 / 45

Kerosene

70%

150 / 45

Diesel Fuel

70%

150 / 45

Ethanol 95%

60%

135 / 40

IPA

60%

135 / 40

Methanol

55%

115 / 35

Methane

45%

100 / 30

LPG

45%

100 / 30

Paper

35%

33 / 10

Polypropylene

15%

16 / 5

1.5.1.3 Other Fuels

The detector reacts to other types of fire as follows:
 The baseline fire refers to n-heptane 1ft2 (0.1m2) and is defined as

100% sensitivity.

 For fuel fire – standard pan fire size: 1 ft2 (0.1 m2).
 For gas flame - 20 inch (0.5m) high, 8 inch (0.2m) width plume fire.
 Maximum Response Time: 10 sec.

Table 3: Fuel Sensitivity Ranges

Performance Considerations 9

SharpEyeTM IR3 Flame Detector User Guide

1.5.2 Cone of Vision

 Horizontal: 100°

Figure 1: Horizontal Field of View

 Vertical: +50° (down) , -45° (up)

Figure 2: Vertical Field of View

10 Performance Considerations

TM 40/40I, Rev (6) July 2013

Radiation Source

Immunity
Distance ft. (m)

Indirect or reflected sunlight

IAD

Vehicle headlights (low beam) conforming to
MS53023-1

IAD

Incandescent frosted glass light, 300 W

IAD

Fluorescent light with white enamel reflector, standard
office or shop, 70 W (or two 35 W)

IAD

Electric arc [12mm (15/32") gap at 4000 V alternating
current, 60 Hz]

IAD

Arc welding [6 mm (5/16") rod; 210 A]

See Table 5

Ambient light extremes (darkness to bright light with
snow, water, rain, desert glare and fog)

IAD

Bright colored clothing, including red and safety
orange

IAD

Electronic flash (180 watt-seconds minimum output)

IAD

Movie light, 625 W quartz DWY lamp (Sylvania S.G.-55
or equivalent)

>6.5 (2)

Blue-green dome light conforming to M251073-1

IAD

Flashlight (MX 991/U)

IAD

Radiation heater, 3000 W

>3 (1)

Radiation heater, 1000 W with fan

IAD

Quartz lamp (1000 W)

>3 (1)

Mercury vapor lamp

IAD

Grinding metal

IAD

Lit cigar

>1 (0.3)

Lit cigarette

>1 (0.3)

Match, wood, stick including flare up

>13 (4)

1.5.3 False Alarms Prevention

To prevent false alarms, the detector will not alarm or react to the radiation
sources specified in Table 4.

Table 4: Immunity to False Alarm Sources

Notes:

 IAD = Immune at Any Distance.
 All sources are chopped from 0 to 20 Hz.

Performance Considerations 11

SharpEyeTM IR3 Flame Detector User Guide

Sensitivity Setting

Detection Range

Immunity Distance

1

50 ft. (15m)

>6 ft. (2m)

2

100 ft. (30m)

>12 ft. (4m)

3

150 ft. (45m)

>17 ft. (6m)

4

215 ft. (65m)

>25 ft. (7.5m)

Detector Status

LED color

LED mode

Fault, BIT Fault

Yellow

4 Hz - flashing

Normal

Green

1 Hz - flashing

Warning

Red

2 Hz - flashing

Alarm

Red

Steady

Indicator LED

Table 5: Welding Immunity Distance

1.5.4 Visual Indicators

One 3-color LED indicator is located inside the detector window, as shown in
Figure 3. The detector statuses are listed in Table 6.

Table 6: LED Indications

12 Performance Considerations

Figure 3: Indication LED

TM 40/40I, Rev (6) July 2013

Output Type

Version

Detector Status

Alarm relay

40/40I – Options 1XXXX,
4XXXX, 5XXXX

The relay is N.O.

40/40I – Options 2XXXX,
3XXXX

The relay is N.O. and N.C.

Auxiliary relay

40/40I – Options 4XXXX
and 5XXXX

The relay is N.O.

Fault relay

40/40I – Options 1XXXX,
2XXXX, 4XXXX

The relay is N.C. energized

40/40I – Options 3XXXX,
5XXXX

The relay is N.O. energized

0-20mA
current output

40/40I – Option 1XXXX

SINK Option, (can be
changed to Source – see
Figure 10, Figure 11 and
Figure 12)

40/40I – Options 2XXXX
and 3XXXX

SOURCE Option with the
HART protocol

RS-485

All versions

Modbus protocol

1.5.5 Output Signals

Outputs are available according to the default configuration or the wiring
options selected for the 40/40I detector. Determine the outputs for your
model according to Table 7.

The detector incorporates several types of output suitable to different
control systems:

 0-20mA (stepped) with HART
 Relays (Alarm, Fault, Auxiliary)
 RS-485 Modbus

Table 7: Available Output Types

Performance Considerations 13

SharpEyeTM IR3 Flame Detector User Guide

Status

Description

Normal

Normal operation.

BIT

Built-In-Test being performed.

Warning

Fire detected - changed to Warning (pre-alarm state).

Alarm

Fire detected - changed to Fire Alarm state.

Latched Alarm
(Optional)

The alarm outputs remain latched on following detection
of a fire that has already been extinguished.

BIT Fault

A fault is detected during BIT sequence or other electric
failure. The detector will continue to detect for fire.

Fault

A fault is detected when the power supply is too low or
due to a software fault or electrical failure. The detector
will NOT detect fire in this condition.

Detector
State

LED
Indicator

LED
Mode

Alarm
Relay

Auxiliary
Relay

Fault
Relay

mA
output

Normal

Green

1Hz

Off

Off

On

4 mA

Warning

Red

2Hz

Off

On

(4)

On

16 mA

Alarm

(1)

Red

Constant

On

On

On

20 mA

Latch

(2)

Red

Constant

On

Off

On

20 mA

On

(4)

On

20 mA

BIT Fault

(3)

Yellow

4Hz

Off

Off

Off

2 mA

Warning at
BIT Fault

Red

2Hz

Off

On

(4)

Off

16 mA

Alarm at
BIT Fault

Red

Constant

On

On

Off

20 mA

Fault

Yellow

4Hz

Off

Off

Off

0 mA

1.5.6 Detector Status

The possible detector function statuses are listed in Table 8. A more detailed
fault analysis can be seen via HART or RS485.

Table 8: Detector Status

In each state, the detector activates different outputs, as specified in
Table 9.

Table 9: Output Signals versus Detector State

Notes:

1 The alarm outputs are activated while alarm conditions exist and will

stop approximately 5 seconds after the fire is no longer detected.

2 The Alarm state can be optionally latched via programmed function.

(Default is non-latching).

3 The detector will remain in BIT Fault state until it has passed a

successful BIT.

14 Performance Considerations

TM 40/40I, Rev (6) July 2013

4 The Auxiliary Relay can be activated at the Warning level or Alarm level,

depending on programmed function.

5 The outputs depend on the wiring options.

1.5.6.1 Optional Latching

Alarms are set as non-latching by default. However, the detector includes a
latched alarm output capability, which operates according to the
programmed function.

If selected, upon detection of a fire, the detection signal is latched until a
manual reset is performed (disconnecting the power supply or performing a
manual BIT (see Manual BIT on page 18).

Latching affects the Alarm Relay, 0-20mA output, the Alarm LED (the
Auxiliary Relay will be latched only when the programmable function

Auxiliary Relay is set to YES.

Notes:

 The Auxiliary Relay is available only in Models with suffix – 4XXXX and

5XXXX
 The 0-20mA is available only in Models with suffix – 1XXXX, 2XXXX,

3XXXX

1.5.7 Auxiliary Relay as End-of-Line Resistor

The Auxiliary Relay can be used as End-of-Line (EOL) resistance in Models
with suffix-4XXXX, and 5XXXX only. In this case, the Auxiliary Relay is
active as long as the detector is not in Fault state.

1.6 Internal Detector Tests

The detector performs two types of self-tests:

 Continuous Feature Test, page 15
 Built-In-Test (BIT), page 16

1.6.1 Continuous Feature Test

During normal operation, the detector tests itself continuously and indicates
a fault if a failure is found. This type of test complies with SIL-2
requirements.

The detector continuously tests:

 Input voltage level
 All internal regulator voltage level
 Voltage level status of sensor and sensor circuitry for noise or

disconnection in the electronic circuitry

 0-20mA level output
 Relays and heater operation

Internal Detector Tests 15

SharpEyeTM IR3 Flame Detector User Guide

 Processor Watch dog
 Software
 Memory
 Oscillator frequency

Response to Fault Indication

If a failure is found, the detector indicates by:

 Fault relay:

 Opens in wiring option 1, 2, and 4

 Closes in wiring option 3 and 5
 0-20mA: indicates Fault (0mA or 2mA) in wiring option 1, 2, 3
 LED – Yellow flashes (4 Hz)
 Correcting the Fault

The fault indications remain until the detector’s power is removed. The fault

indications return if the fault is still found when power is restored.

1.6.2 Built-In-Test (BIT)

The detector’s Built-In-Test (BIT) also checks the following:

 Electronics circuitry
 Sensors
 Window cleanliness

The detector can be set to perform the BIT in the following modes:

 Automatically and manually
 Manually only

Note: In Manual BIT, the outputs may also be tested and Control System

‘inhibit’ should be applied if this could initiate other systems.

1.6.2.1 How the BIT Operates

 The detector's status remains unchanged if the result of a BIT is the

same as the current status (NORMAL or BIT Fault)

 the detectors’ status is changed (from Normal to BIT Fault or vice versa)

if the BIT differs from the current status
Note: In ‘BIT Fault’ status the detector can continue to detect a fire.

16 Internal Detector Tests

TM 40/40I, Rev (6) July 2013

Output

Result

Fault relay

 Model 1XXX, 2XXX, 4XXX Wiring options 1, 2, 4:

remains CLOSED

 Model 3XXX, 5XXX Wiring options 3 and 5: remains

OPEN

0-20mA
output

Wiring option 1, 2, 3: Normal (4 mA)

Power LED

Green, Flashing, 1 Hz On (Normal)

Output

Result

Fault relay

 Wiring option 1, 2, 4: changes to Open
 Wiring option 3 and 5: changes to Closed

0-20mA output

Wiring option 1, 2, 3: BIT Fault (2mA)

Power LED

Yellow, Flashing, 4 Hz

BIT procedure

Performed every 1 minute

1.6.2.2 Automatic BIT

The detector automatically performs a BIT every 15 minutes. A successful
BIT sequence does not activate any indicator.

All outputs of BIT results will function as described in Table 10 and Table 11,
and the BIT will be automatically executed every 1 minute.

This continues until a successful BIT occurs, when the detector resumes
normal operation.

Table 10: Results of a Successful BIT

Table 11: Results of an Unsuccessful BIT

Internal Detector Tests 17

SharpEyeTM IR3 Flame Detector User Guide

Output

Result

FAULT relay

 Wiring options 1, 2, and 4: remains CLOSED (Normal)
 Wiring options 3 and 5: remains OPEN (Normal)

ALARM relay

Activated for 3 sec (only when the function Alarm BIT is
set to YES)

AUXILIARY
relay

For wiring options 4 and 5: is activated for 3 sec (only
when the function Auxiliary BIT is set to YES)

0-20mA
output

Wiring option 1, 2, 3:

 Initiates 20 mA only when the function Alarm BIT is set

to YES

 Initiates 16 mA when the function Auxiliary BIT is set

to YES and the function Alarm BIT is set to NO

POWER LED

Green, Flashing, 1 Hz

Output

Result

FAULT relay

 Wiring option 1, 2, 4: changes to OPEN
 Wiring option 3 and 5:changes to CLOSED

0-20mA
output

Wiring option 1, 2, 3: Indicates BIT FAULT (2mA)

POWER LED

Yellow, Flashing, 4 Hz

1.6.2.3 Manual BIT

The BIT is manually initiated by momentarily connecting Terminal 3 with
Terminal 2 (or a switch across these terminals in the safe area).

The results of a successful and unsuccessful Manual BIT are listed in
Table 12 and Table 13.

Table 12: Results of a Successful Manual BIT

Table 13: Results of an Unsuccessful Manual BIT

1.6.2.4 Manual BIT only selected

The BIT is initiated manually by momentarily connecting Terminal Number 3
with Terminal Number 2 or a switch across these terminals in the safe area.

18 Internal Detector Tests

2 Installing the Detector

General Guidelines

page 19

Unpacking the Product

page 20

Required Tools

page 21

Certification Instructions

page 22

Installation Cables

page 23

Installing the Tilt Mount (part no. 40/40-001)

page 24

Connecting the Detector

page 26

Configuring your Detector

page 29

➣ In this chapter…

This chapter provides basic guidelines for installing the detector. It does not
attempt to cover all of the standard practices and codes of installation.
Rather, it emphasizes specific points of consideration and provides some
general rules for qualified personnel. Wherever applicable, special safety
precautions are stressed.

2.1 General Guidelines

To ensure optimal performance and an efficient installation, consider the
following guidelines:

 Sensitivity: To determine the level of sensitivity, consider the following:

 Size of fire at the required distance to be detected

 Type of flammable materials
 Wiring:

 The wire gauge must be designed according to the distance from the

detector to the controller and the number of detectors on the same
power line. See Wiring Instructions on page 49.

 To fully comply with EMC directive and protect against interference

caused by RFI and EMI, the cable to the detector must be shielded
and the detector must be grounded. The shield should be grounded
at the detector end.

 Spacing and Location: The number of detectors and their locations in

the protected area are determined by:

 Size of the protected area

 Sensitivity of the detectors

 Obstructed lines of sight

 Cone of view of the detectors

General Guidelines 19

SharpEyeTM IR3 Flame Detector User Guide

 Environment:

 Dust, snow or rain can reduce the detectors sensitivity and require

more maintenance activities.

 The presence of high intensity flickering IR sources may affect

sensitivity.

 Aiming the Detector:

 The detector should be aimed toward the center of the detection

zone and have a completely unobstructed view of the protected area.

 Whenever possible, the detector face should be tilted down at a 45º

angle to maximize coverage and prevent accumulation of dust and
dirt.

 Do not start an installation unless all conceivable considerations

regarding detection location have been taken into account.

Installation should comply with NFPA 72E or any other local and
International regulations and standards, as applicable to flame
detectors and installation of Ex approved products.

2.2 Unpacking the Product

Upon receipt of your detector, check and record the following:

1 Verify the appropriate Purchase Order.

Record the Part Number (P/N) and Serial Number of the detectors, and

the installation date in an appropriate Log-book.

2 Open the package before installation and visually inspect the detector.
3 Verify that all components required for the detector installation are

readily available before beginning the installation. If the installation is

not completed in a single session, secure and seal the detectors and

conduits / cable entries.

2.2.1 Checking the Product Type

Check that your product has the configuration / options that you ordered.
Check the detailed part number on the label and compare this information
with the descriptions contained in Model and Types on page 2.

20 Unpacking the Product

TM 40/40I, Rev (6) July 2013

Tool

Function

Hex Key 3/16 inch

 Mount the detector on the tilt mount.
 Open and close detector cover (for wiring)

Flat Screw Driver 4 mm

Connect ground terminal

Flat Screw Driver 2.5 mm

Connect wires to the terminal blocks

2.3 Required Tools

The detector can be installed using general-purpose common tools and
equipment. Table 14 lists the specific tools required to install the detector.

Table 14: Tools

For wiring, use color-coded conductors or suitable wire markings or labels.
12 to 20 AWG (0.5 mm² to 3.5 mm²) wires may be used for site wiring. The
selection of wire gauge should be based on the number of detectors used on
the same line and the distance from the control unit, in compliance with
specifications (see General Instructions for Electrical Wiring on page 49).

Required Tools 21

SharpEyeTM IR3 Flame Detector User Guide

Warning: Do not open the detector, even when isolated, when
flammable atmosphere present.

2.4 Certification Instructions

Use the following certification instructions:
 The cable entry point may exceed 167°F (75°C). Suitable precautions

should be taken when selecting the cable.
 The equipment may be used with flammable gases and vapors with

apparatus groups IIA, IIB and IIC:

 T5 in the ambient temperature range: –67°F (–55°C) to +167°F

(+75°C).

 T4 in the ambient temperature range: –67°F (–55°C) to +185°F

(+85°C).

 Installation shall be carried out by suitably trained personnel in

accordance with the applicable code of practice such as. EN 60079-

14:1997.
 Inspection and maintenance of this equipment shall be carried out by

suitably trained personnel in accordance with the applicable code of

practice such as EN 60079-17.
 Repair of this equipment shall be carried out by suitably trained

personnel in accordance with the applicable code of practice such as EN

60079-19.
 The certification of this equipment relies upon the following materials

used in its construction:

 Enclosure: 316L Stainless Steel or Aluminum

 Window: Sapphire Glass
 If the equipment is likely to come into contact with aggressive

substances, then it is the responsibility of the user to take suitable

precautions that prevent it from being adversely affected, thus ensuring

that the type of protection provided by the equipment is not

compromised:

 Aggressive substances: acidic liquids or gases that may attack

metals, or solvents that may affect polymeric materials.

 Suitable precautions: regular checks as part of routine inspections or

establishing from the material’s data sheets that it is resistant to

specific chemicals.

22 Certification Instructions

TM 40/40I, Rev (6) July 2013

2.5 Installation Cables

Follow the following guideline for the cable installation:
 All cables to the detector must be well shielded in order to comply with

EMC requirement (see Technical Specifications on page 60).
 Ground the detector to the nearest ground point (not more than 3m

from the detector location).
 Install the detector with the cable entries placed downwards.

2.5.1 Conduit Installation

The conduit used for the cabling must comply with the following:
 To avoid water condensation water in the detector, install the detector

with the conduits placed downward, that include drain holes.
 When using the optional tilt mount, use flexible conduits for the last

portion connecting to the detector.
 For installations in atmospheres as defined in group B of the NFPA 72E,

seal the conduits inlets.
 When pulling the cables through the conduits, ensure that they are not

tangled or stressed. Extend the cables about 30 cm. (12 in.) beyond the

detector location to accommodate wiring after installation.
 After the conductor cables have been pulled through the conduits,

perform a continuity test.

Installation Cables 23

SharpEyeTM IR3 Flame Detector User Guide

2.6 Installing the Tilt Mount (part no. 40/40-001)

The Tilt Mount enables the detector to be rotated up to 60º in all directions.
Figure 4 shows the Detector mounted on the Tilt Mount.

Figure 4: Detector with Tilt Mount

24 Installing the Tilt Mount (part no. 40/40-001)

TM 40/40I, Rev (6) July 2013

Tilt Mount

Tilt Holding Plate

Horizontal
Locking Screw

Vertical Locking

Screw

Detector Holding

Plate

2.6.1 Tilt Mount Assembly

Figure 5 shows the Tilt Mount Assembly.

Figure 5: Tilt Mount Assembly

Figure 6 shows the Tilt Mount Assembly with dimension in both millimeters
and inches.

Figure 6: Tilt Mount Assembly (dimensions in mm and inches)

Installing the Tilt Mount (part no. 40/40-001) 25

SharpEyeTM IR3 Flame Detector User Guide

➣ To install the Tilt Mount and Detector:

1 Place the tilt mount in its designated location and secure it with four (4)

fasteners through four (4) holes 7 mm in diameter. Use the four (4)

screws and spring washers according to the kit.

Note: Removing the detector for maintenance purpose does not require

the Tilt Mount to be removed.

2 Unpack the detector.
3 Place the detector with its conduit/cable entries pointing downwards on

the holding plate of the tilt mount. Secure the detector with 5/16" 18 UNC

x 1" screw to the tilt mount.

4 Release the Horizontal and Vertical Locking Screws using

such that the detector can be rotated. Point the detector towards the

protected area and make certain that the view of the area is

unobstructed. Secure the detector in that position by tightening the

locking screws on the tilt mount. (Make sure the detector is in the

correct position.)

The detector is now correctly located, aligned and ready to be connected

to the system.

3

/16" Hex Key

2.7 Connecting the Detector

This section describes how to connect the electric cabling to the detector
(Figure 7).

➣ To connect the detector to the electrical cables

1 Disconnect the power.
2 Remove the back cover of the detector by removing three (3) socket

head-screws in the cover bolts. The terminal chamber is now revealed.

3 Remove the protective plug mounted on the Detector Conduit/Cable

entry; pull the wires through the Detector Inlet.

26 Connecting the Detector

TM 40/40I, Rev (6) July 2013

Earth
Terminal

Terminal
Chamber

Terminals

Internal Earth
Terminal

Detector Holding
Screw

Conduit / Cable
Inlet

4 Use a ¾" – 14 NPT explosion-proof conduit connection or M25x1.5

flameproof gland to assemble the cable / conduit to the detector.

Figure 7: Detector with Cover Removed

5 Connect the wires to the required terminals on the Terminal Board

according to the wiring diagram (Figure 7) and Table 15.

6 Connect the grounding (earth) wire to the ground (earth) screw outside

the detector (Earth Terminal). The detector must be well grounded to

earth ground.

7 Verify the wiring. Improper wiring may damage the detector.
8 Check the wires for secure mechanical connection and press them neatly

against the terminal to prevent them from interfering while closing the

back cover (Figure 7).

9 Place and secure the detector’s back cover by screwing the three (3)

socket-head-screws in the Cover Bolts (Figure 4).

Connecting the Detector 27

SharpEyeTM IR3 Flame Detector User Guide

Wire
Terminal
No.

Option 1
Default

Option 2

Option 3

Option 4

Option 5

1

+24 VDC

+24 VDC

+24 VDC

+24 VDC

+24 VDC

2

0 VDC

0 VDC

0 VDC

0 VDC

0 VDC

3

Manual

BIT

Manual

BIT

Manual

BIT

Manual

BIT

Manual

BIT

4

Fault

Relay N.C.

Fault

Relay N.C.

Fault

Relay N.O.

Fault

Relay N.C.

Fault

Relay N.O.

5

6

Alarm

Relay N.O.

Alarm

Relay N.O.

Alarm

Relay N.O.

Alarm

Relay N.O.

Alarm

Relay N.O.

7

Alarm

Relay C

Alarm

Relay C

Alarm

Relay C

Alarm

Relay C

Alarm

Relay C

8

0-20mA

In

Alarm

Relay N.C.

Alarm

Relay N.C.

Auxiliary

N.O.

Auxiliary

N.O.

9

0-20mA

Out

0-20mA

Out*

0-20mA

Out*

Auxiliary

C

Auxiliary C

10

RS-485+

(1)

RS-485+

(1)

RS-485+

(1)

RS-485+

(1)

RS-485+

(1)

11

RS-485-

(1)

RS-485-

(1)

RS-485-

(1)

RS-485-

(1)

RS-485-

(1)

12

RS-485

GND

RS-485

GND

RS-485

GND

RS-485

GND

RS-485

GND

2.7.1 Verifying the Detector Wiring

The detector has five output wiring options within the Exde integral terminal
section of the enclosure. There are 12 terminals labeled 1-12.

For more information on the wiring options, see Wiring Instructions on
page 49.

For mA wiring options see Figure 10, Figure 11, Figure 12, and Figure 13.
For relay connection options see Figure 9.
Table 15 describes the function of each terminal for all the wiring options.

Table 15: Model 40/40I Wiring Options

*Available with the HART protocol.
Notes:
 RS-485 is used for communication network as specified in Appendix C

(Terminals 10, 11, 12) and to connect (in safe area) to PC/Laptop for

configuration/diagnostics.

 Alarm relay:

 N.O. energized contact in wiring options 1, 4, 5.

 N.O. and N.C. energized in options 2 and 3.

28 Connecting the Detector

TM 40/40I, Rev (6) July 2013

 0-20mA is ‘Sink’ in option 1 and ‘Source’ in option 2 and 3.
 0-20mA 'Source' in options 2 and 3 available with the HART protocol.
 In Wiring Option 1, link Terminals 1 and 8 to change the mA output to

‘Source’.

 The Fault output is N.C. energized SPST relay. The contacts are closed

when the Detector is in its normal operational condition in options 1, 2

and 4, and available as N.O. energized in options 3 and 5.
 The Auxiliary output is N.O. energized (SPST) relay. The Auxiliary Relay

may act in parallel with the ALARM relay to activate another external

device or it may provide a warning signal, depending on the function

configuration.

2.8 Configuring your Detector

You can reprogram the function setup using the RS-485 connection or using
the HART protocol as follows:

 Mini Laptop Kit (P/N 777820): The mini laptop, pre-loaded with the

Spectrex host software, enables you to re-configure settings or perform

diagnostics on all 40/40 series flame detectors.

Refer to manual TM777070 for programming instructions when using the

Mini Laptop Kit.
 USB RS485 Harness Kit (P/N 794079-5): The USB RS485 Harness Kit

with RS485/USB converter, used with the Spectrex host software,

enables you to connect to any available PC or laptop to re-configure

settings or perform diagnostics on all 40/40 series flame detectors.

Refer to manual TM777050 for programming instructions when using the

USB RS485 Harness Kit.
 HART Protocol: Refer to Manual TM 777030 for programming

instructions.
These functions enable you to set:

 Sensitivity
 Alarm Delay
 Address Setup
 Mode of Operation
 Heated Optics Operation

The factory Default settings listed for each function are:

 Sensitivity – 30
 Alarm Delay – A
 Alarm Latch – No
 Auxiliary Relay – No
 Automatic BIT – Yes

Configuring your Detector 29

SharpEyeTM IR3 Flame Detector User Guide

Sensitivity Setting

Detector Distance

feet

Detector Distance

meters

15

50

15

30 (default)

100

30

45

150

45

60

215

65

 Alarm BIT – No
 Auxiliary BIT – No
 EOL – No
 Heated Optics – Auto
 Temperature – 41°F (5°C)

2.8.1 Sensitivity

The detector offers four (4) sensitivity settings. The settings refer to an
n-heptane or gasoline fire of 1ft² (0.1m²), from low sensitivity of 50 ft.
(15m) to 215 ft. (65m). For other types of fuel sensitivity, refer to Table 3.

Table 16: Sensitivity Settings

2.8.2 Alarm Delay

The detector is equipped with an Alarm Delay option, which provides
programmable time delays with settings at:

 Antiflare* (default)

*The Antiflare mode is selected to prevent false alarms in locations

where fast flares may be present. The Time Delay for fire alarms in this

mode ranges from 2.5 to 15 seconds (usually, less than 10 seconds).
Other delays settings are available:
 0, 3, 5, 10, 15, 20 or 30 seconds
When an Alarm (Detection) level condition occurs, the detector delays the

execution of the Alarm outputs by the specified period of time. The detector
then evaluates the condition for 3 seconds. If the Alarm level is still present,
the Alarm outputs are activated. If this condition no longer exists, the
detector returns to its standby state.

The Alarm delay option affects the output relays and the 0-20mA. The LEDs
and outputs indicate warning levels during the delay time only if the fire
condition exists.

2.8.3 Address Set-up

The detector provides up to 247 addresses that can be changed with the
RS485 communication link or the HART protocol.

30 Configuring your Detector

TM 40/40I, Rev (6) July 2013

Function

Setting

Alarm Latch

 Yes: Enable Alarm latching.
 No: Disable Alarm latching (default).

Auxiliary Relay**

 Yes: Activate Auxiliary Relay at Warning level.
 No: Activate Auxiliary Relay at Alarm level

(default).

Automatic BIT

 Yes: Perform Automatic & Manual Bit (default).
 No: Perform Manual Bit only.

Alarm BIT

 Yes: Successful Manual Bit activates the Alarm

Relay for approximately 3 seconds (default).

 No: Successful Manual Bit does not activate the

Alarm Relay.

Auxiliary BIT**

 Yes: Successful Manual Bit activates the

Auxiliary Relay for approximately 3 seconds
(default).

 No: Successful Manual Bit does not activate the

Auxiliary Relay.

EOL**

 Yes: Auxiliary Relay is used as End of Line.
 No: Auxiliary Relay operates in accordance with

Function 2 and 5 (default).

2.8.4 Function Set-up

You can select the desired functions as detailed in Table 17.

Table 17: Functions

Note: ** only available in Model 40/40I-4XXXX and 5XXXX

Configuring your Detector 31

SharpEyeTM IR3 Flame Detector User Guide

2.8.5 Heated Optics

The heated optics can be defined as one of the following modes:

 Heated Mode

 OFF: Not operated

 On: Continuously

 AUTO: Per temperature change

In AUTO mode, the default HEAT ON setting is 41°F (5°C). Heating stops
when the temperature is 27°F (15°C) above the start temperature.

You can define the start temperature below which the window will be
heated. The temperature can be defined between 32°F and 122°F (0°C to
50°C).

32 Configuring your Detector

3 Operating the Detector

Powering Up

page 33

Safety Precautions

page 34

Testing Procedures

page 35

➣ In this chapter…

This chapter describes how to power up and test the detector. It also
includes some very important safety checks that you should make before
operating the detector.

3.1 Powering Up

This section describes how to power up the detector. Follow these
instructions carefully to obtain optimal performance from the detector over
its life cycle:

➣ To power up the detector:

1 Turn on the power.
2 Wait approximately 60 seconds for the detector to finish the start-up

procedure.

Applying power initiates the following sequence of events:

 The yellow LED flashes at 4 Hz.

 BIT is executed.

If successful, the green LED flashes at 1 Hz and the FAULT relay contacts

close, mA output is 4 mA.

3 Enter to Normal mode.

Note: The majority of detectors are used in the default non-latching alarm

mode. Only perform a Reset when the Latching alarm option has been
programmed.

➣ To reset a detector when in it is in a LATCHED ALARM state:

 Do one of the following:

 Disconnect power (Terminal Number 1 or Terminal Number 2).

or

 Initiate a Manual BIT.

Powering Up 33

SharpEyeTM IR3 Flame Detector User Guide

Function

Value

Notes

Sensitivity

30

Alarm Delay

A

Antiflare.

Alarm Latch

No

Auxiliary Relay

No

In wiring options 1, 2, 3 the Auxiliary
Relay is not available. This function is not
used.

Automatic BIT

Yes

Alarm BIT

No

Auxiliary BIT

No

In wiring options 1, 2, 3 the Auxiliary
Relay is not available. This function is not
used.

EOL

No

In wiring options 1, 2, 3 the Auxiliary
Relay is not available. This function is not
used.

Heat Mode

Auto

Heat On

41°F

(5°C)

The detector starts heating the window
for any temperature below this value (in
degrees Celsius).

3.2 Safety Precautions

After powering-up, the detector requires almost no attention in order to
function properly, but the following should be noted:

 Follow the instructions in this guide and refer to the drawings and

specifications.
 Do not expose the detector to radiation of any kind unless required for

testing purposes.

 Do not open the detector housing, while power is applied.
 Do not open the electronic compartment. This part should be kept closed

at all times and only opened in the factory. Opening the electronic

component side invalidates the warranty.
 You should only access the wiring compartment to wire or remove the

detector or access RS485 terminals for maintenance.
 Disconnect or disable external devices, such as automatic extinguishing

systems before carrying out any maintenance.

3.2.1 Default Functions Settings

Table 18 lists the default function configuration supplied with the detector.

Table 18: Default Function Values

 In order to change the default function use:

 Mini Laptop Kit P/N 777820. Refer to manual TM777070 for

programming instructions when using the Mini Laptop Kit.

34 Safety Precautions

TM 40/40I, Rev (6) July 2013

 USB RS485 Harness Kit P/N 794079-5. Refer to manual TM777050

for programming instructions when using the USB RS485 Harness
Kit.

 HART protocol, refer to Manual TM777030 for instructions.

3.3 Testing Procedures

This section describes the proof testing procedure for proper operation of
the detector. The detector can be tested using the Manual Built-in-Test or
the Spectrex Fire Simulator -20/20-310.

The detector performs internal test continuously and automatic BIT test
every 15 minutes for more details refer to Built-In-Test (BIT) on page 16.

This section includes the following topics:

 Automatic BIT Test, page 35
 Manual BIT Test. page 35
 Testing with Fire Simulator Model 20/20-310, page 35

3.3.1 Automatic BIT Test

Check that the indicators show normal conditions. See Powering Up on
page 33.

3.3.2 Manual BIT Test

Important: If the function setup Alarm BIT and/or Auxiliary BIT are set
to Yes (default No), the Alarm, Auxiliary Relay and 0-20mA outputs are
activated during a Manual BIT. Therefore, automatic extinguishing systems
or any external devices that may be activated during BIT must be
disconnected.

➣ To perform a Manual BIT:

1 Verify that the detector is Normal Mode.
2 Initiate Manual BIT. The results of successful and unsuccessful manual

BITs are detailed in Table 12 and Table 13.

3.3.3 Testing with Fire Simulator Model 20/20-310

The Fire Simulator Model 20/20-310 can be used to simulate exposure of
the detector to a real fire condition. The detector is exposed to radiation at
the required detection level. As a result, the detector will generate a Fire
Alarm signal. See Long Range IR3 Fire Simulator on page 57 for more
information.

Important: If the detector is exposed to a fire simulator, the Alarm and
Accessory Relays and 0-20mA are activated during the simulation.
Therefore, automatic extinguishing systems or any external devices, which
may be activated during this process, must be disconnected.

Testing Procedures 35

SharpEyeTM IR3 Flame Detector User Guide

Component

Action

Notes

0-20mA

Turn to 20mA

For a few seconds and then return to
4mA

Alarm Relay

Activated

for a few seconds and then returns to
Normal

Auxiliary Relay

Activated

for a few seconds and then returns to
Normal

Fault Relay

Remains active
during the test

LED

Red, steady

➣ To perform Fire Simulator Test:

1 Power up the system and wait up to 60 seconds for the detector to turn

to a normal state. The Power LED turns on.

2 Aim the Spectrex Fire Simulator Model 20/20-310 at the target point of

the detector (Figure 14), in a way that the radiation emitted by it is

facing directly towards the detector. (See Long Range IR3 on page 57).

3 Press the operation button once. After few seconds, a successful test

shows the results shown in Table 19.

Table 19: Results of Successful Fire Simulator Test

The detector is now ready for operation.

36 Testing Procedures

4 Maintenance and Troubleshooting

Maintenance

page 37

Troubleshooting

page 39

➣ In this chapter…

This chapter deals with preventive maintenance, describes possible faults in
detector operation and indicates corrective measures. Ignoring these
instructions may cause problems with the detector and may invalidate the
warranty. Whenever a unit requires service, please contact Spectrex or its
authorized distributor for assistance.

4.1 Maintenance

This section describes the basic maintenance steps that should be taken to
keep the detector in good working condition and includes the following
topics:

 General Procedures, page 37
 Periodic Procedures, page 38
 Keeping Maintenance Records, page 38

4.1.1 General Procedures

Maintenance should be performed by suitably qualified personnel, who are
familiar with local codes and practice. Maintenance requires ordinary tools.

4.1.1.1 Cleaning

The detector must be kept as clean as possible. Clean the viewing window
and the reflector of the Flame Detector periodically.

The frequency of cleaning operations depends upon the local environmental
conditions and specific applications. The fire detection system designer will
give his recommendations.

➣ To clean the detector viewing window and reflector:

1 Disconnect power to the detector before proceeding with any

maintenance including window/lens cleaning.

2 Use water and detergent, and then rinse the viewing window with clean

water.

3 Where dust, dirt or moisture accumulates on the window, first clean it

with a soft optical cloth and detergent, and then rinse with clean water.

Maintenance 37

SharpEyeTM IR3 Flame Detector User Guide

4.1.2 Periodic Procedures

In addition to preventive cleaning and maintenance, the detector should be
functionally tested every six months or as dictated by local codes and
regulations. These tests should also be carried out if the detector has been
opened for any reason.

4.1.2.1 Power-Up Procedure

Perform Power-Up procedure every time power is restored to the system.
Follow the instructions described in Powering Up on page 33.

4.1.2.2 Functional Test Procedure

Perform a functional test of the detector as described in Internal Detector
Tests on page 15.

4.1.3 Keeping Maintenance Records

It is recommended that maintenance operations performed on a detector
are recorded in a Log-book. The record should include the following:

 Installation date, and contractor
 Serial and tag no.
 Entries for every maintenance operation performed, including the

description of the operation, date and personnel ID.
If a unit is sent to Spectrex or a distributor for service, a copy of the

maintenance records should accompany it.

38 Maintenance

TM 40/40I, Rev (6) July 2013

Problem

Cause

Corrective Action

LEDs Off
Fault Relay at N.O
0-20mA at 0mA

No power at the
unit

 Check that the correct power

is sent to the detector.

 Check power polarity.
 Check wiring in the detector.
 Send the detector back for

repairs.

Yellow LED flashes
at 4 Hz
Fault Relay at N.O
0-20mA at 0mA

Fault Detector

 Low Voltage
 Faulty Detector

 Check the voltage at the

detector; verify at least 24V
at the detector terminal.

 Send the detector back for

repairs.

Yellow LED flashes
at 4 Hz
Fault Relay at N.O
0-20mA at 2mA

BIT Fault

 Faulty Detector

 Clean detector window.
 Re-power the detector.
 Replace the detector.

Red LED
constantly on

If no fire exists,
then, detector
alarm latched

Perform Reset to the detector.

Alarm Relay at On
0-20mA at 20mA

Alarm condition

 Check cause for alarm.
 If no alarm, re-power the

detector.

 Send the detector back for

repairs.

4.2 Troubleshooting

This section is intended to be a guide to correct problems which may happen
during normal operation.

Table 20: Troubleshooting Table

Troubleshooting 39

SharpEyeTM IR3 Flame Detector User Guide

40 Troubleshooting

Appendices

Appendices 41

SharpEyeTM IR3 Flame Detector User Guide

42 Appendices

A Specifications

Technical Specifications

page 43

Electrical Specifications

page 44

Outputs

page 44

Approvals

page 46

Mechanical Specifications

page 47

Environmental Specifications

page 47

Spectral Response

Three IR Bands

Detection Range

(at highest Sensitivity
Setting for 1ft2 (0.1m2) pan
fire)

Fuel

ft. / m

Fuel

ft. / m

n-Heptane

215 / 65

Kerosene

150 / 45

Gasoline

215 / 65

Ethanol 95%

135 / 40

Diesel Fuel

150 / 45

Methanol

115 / 35

JP5

150 / 45

IPA (Isopropyl
Alcohol)

135 / 40

Methane*

100 / 30

Polypropylene
Pellets

16 / 5
LPG*

100 / 30

Office Paper

33 / 10

* 20" (0.5m) high, 8" (0.2m) width plume fire

Response Time

Typically 5 seconds

Adjustable Time Delay

Up to 30 seconds

Sensitivity Ranges

4 Sensitive ranges for 1 ft2 (0.1m2) n-heptane pan fire from
50 ft. (15m) to 215 ft. (65m)

Fields of View

Horizontal 100, Vertical 95

Built-In-Test (BIT)

Automatic (and Manual)

➣ In this appendix…

A.1 Technical Specifications

Technical Specifications 43

SharpEyeTM IR3 Flame Detector User Guide

Operating
Voltage

Status

All
Outputs

Without
0-20mA

Power
Consumption
(Max. 24VDC)

Normal

1.61W

1.56W

Normal when Heater On

2.28W

2.16W

Alarm

2.64W

2.28W

Alarm when Heater On

3.24W

2.88W

Maximum Current
(Max. 24VDC)

Normal

70mA

65mA

Normal when Heater On

95mA

90mA

Alarm

110mA

95mA

Alarm when Heater On

135mA

120mA

Power
Consumption
(Max. 18-32VDC)

Normal

1.95W

1.85W

Normal when Heater On

2.56W

2.45W

Alarm

3.04W

2.56W

Alarm when Heater On

3.68W

3.2W

Maximum Current
(18-32VDC)

Normal

90mA

85mA

Normal when Heater On

105mA

100mA

Alarm

130mA

115mA

Alarm when Heater On

160mA

145mA

Electrical Input Protection

The input circuit is protected against
voltage-reversed polarity, voltage transients,
surges and spikes according to MIL-STD­1275B

Electrical
Interface

There are five output-wiring options. These options must
be defined at the factory per the customer order and
cannot be changed at the customer facility.

See General Instructions for Electrical Wiring on page 49
for the wiring/terminal diagram for each option.

Unless otherwise specified, the default is Option 1. The
wiring arrangement is identified on the detector by the
part number (see Model and Types on page 2).

 Option 1: Power, RS-485, 0-20mA (Sink), Fault I

Relay (N.C), Alarm Relay, (N.O) (see Figure 7).

 Option 2: Power, RS-485, 0-20mA (Source) and

A.2 Electrical Specifications

Operating Voltage: 18-32 VDC
Power Consumption: Table 21

Table 21: Electrical Specifications

A.3 Outputs

44 Outputs

TM 40/40I, Rev (6) July 2013

HART protocol, Fault Relay (N.O), Alarm Relay, (N.O),
(N.C).

 Option 3: Power, RS-485, 0-20mA (Source) and

HART protocol, Fault Relay (N.O), Alarm Relay (N.O,
N.C).

 Option 4: Power, RS-485, Fault Relay (N.C), Auxiliary

Relay (N.O), Alarm Relay, (N.O).

 Option 5: Power, RS-485, Fault Relay (N.O),

Auxiliary Relay (N.O), Alarm Relay, (N.O).

Electrical
Outputs

 Dry Contact Relays

Table 22: Contact Ratings

Relay
Name

Type

Normal
Position

Maximum
Ratings

Alarm

SPDT

N.O., N.C.

2A at 30 VDC

Auxiliary

SPST

N.O.

2A at 30 VDC

Fault
(see Notes
1 and 2)

SPST

N.C. or
N.O

2A at 30 VDC

Notes:

1. The Fault relay (in wiring options 1, 2, 4) is
normally energized closed during normal operation
of the detector. The relay is de-energized open if a
fault condition or low voltage situation.

2. In wiring options 3, 5 the relay is normally
energized open during normal operation of the
detector. The relay is de-energized close contact if
a fault condition or low voltage situation occurs.

 0-20mA Current Output: The 0-20mA can be Sink

or Source according to the wiring option source (see
General Instructions for Electrical Wiring on page 49).
The maximum permitted load resistance is 600Ω.

Table 23: 20 mA Current Output

State

Output

Fault

0 +1 mA

BIT Fault

2 mA±10%

Normal

4 mA±10%

Warning

16 mA±5%

Alarm

20 mA±5%

 HART Protocol

The HART protocol is a digital communication signal at
a low level on top of the 0-20mA. This is a bi­directional field communication protocol used to
communicate between intelligent field instruments

Troubleshooting 45

SharpEyeTM IR3 Flame Detector User Guide

and the host system. HART is available in wiring
options 2 and 3.

Through the HART protocol the detector can:

 Display set-up
 Reconfigure the set-up
 Display detector status and definition
 Perform detector diagnostics
 Troubleshoot

For more details refer to HART Manual TM777030.

 Communication Network: The detector is equipped

with an RS-485 communication link that can be used
in installations with computerized controllers.

The communications protocol is Modbus compatible.

 This protocol is a standard and widely used.
 It enables continuous communication between a

standard Modbus controller (Master device) and a
serial Network of up to 247 detectors.

Heated
Optics

The front window can be heated to improve performance
in icing, condensation and snow conditions. The heater
increases the temperature of the optical surface by 5-8°F
(3-5°C) above the ambient temperature. The heated
optics can be configured in three ways:

 Off: The optics are not heated
 On: The optics are heated continuously
 Auto: Operated only when the change of temperature

requires the heating. (default)

In Auto mode the start heating temperature can be
defined between 32°F - 122°F (0°C - 50°C). The detector
stops heating the window when the temperature is 27°F
(15°C) above the start temperature.

Hazardous Area
Approvals

 FM, CSA

Class I Div. 1 Groups B, C and D;
Class II/III Div. 1 Groups E, F and G.

 ATEX, IECEx

Ex II 2 G D
Ex de IIC T5 Ta -55°C to +75°C
Ex tD A21 IP66/X7 T95°C
or
Ex de IIC T4 Ta -55°C to +85°C
Ex tD A21 IP66/X7 T105°C

Functional
Approvals

 EN54-10 approved by VdS
 FM approved per FM3260

A.4 Approvals

46 Approvals

TM 40/40I, Rev (6) July 2013

Enclosure

Stainless Steel 316
or
Aluminum, heavy duty copper free (less than 1%),

red epoxy enamel finish

Water and Dust
Tight

 NEMA 250 type 6p.
 IP 66 and IP 67 per EN 60529

Electronic
Modules

Conformal coated

Electrical
Connection
(two entries)

 ¾" - 14NPT conduit

or

 M25 x 1.5

Dimensions

4" x 4.6" x 6.18" (101.6 x 117 x 157 mm)

Weight

 Stainless Steel: 6.1 lb. (2.8 kg)
 Aluminium: 2.8 lb. (1.3 kg)

High Temperature

 Designed to meet MIL-STD-810C, method

501.1 procedure II

 Operating temperature: +167°F (+75 °C)
 Storage temperature: +185 °F (+85 °C)

Low Temperature

 Designed to meet MIL-STD-810C, method

502.1, procedure I

 Operating temperature: -57°F (-50°C)
 Storage temperature: -65°F (-55°C)

Humidity

 Designed to meet MIL-STD-810C, method

507.1, procedure IV

 Relative humidity of up to 95% for the

operational temperature range

Salt Fog

 Designed to meet MIL-STD-810C, method

509.1, procedure I

 Exposure to a 5% Salt Solution Fog for

48 hours

Dust

 Designed to meet MIL-STD-810C, method

510.1, procedure I

 Exposure to a dust concentration of 0.3

frames/cubic ft. at a velocity of 1750 fpm, for
12 hours

A.5 Mechanical Specifications

A.6 Environmental Specifications

The SharpEye 40/40I is designed to withstand harsh environmental
conditions.

Troubleshooting 47

SharpEyeTM IR3 Flame Detector User Guide

Vibration

 Designed to meet MIL-STD-810C, method

514.2, procedure VIII

 Vibration at an acceleration of 1.1g within the

frequency range of 5-30 Hz, and an
acceleration of 3g within the frequency range
of 30-500 Hz

Mechanical Shock

 Designed to meet MIL-STD-810C, method

516.2, procedure I

 Mechanical Shock of 30g half-sine wave, for

11 msec

Electromagnetic
Compatibility (EMC)

See Table 24

Test Standard

Level Per

Electrostatic Discharge ESD

IEC 61000-4-2

IEC 61326-3

Radiated EM Field

IEC 61000-4-3

IEC 61326-3

Electrical Fast Transients

IEC 61000-4-4

IEC 61326-3

Surge

IEC 61000-4-5

IEC 61326-3

Conducted Disturbances

IEC 61000-4-6

IEC 61326-3

Power Ferq. Magnetic Field

IEC 61000-4-8

IEC 61326-3

Radiated Emission

IEC 61000-6-3

EN 55022

Conducted Emission

IEC 61000-6-3

EN 55022

Immunity to Main Supply
Voltage Variations

MIL-STD-1275B

Table 24: Electromagnetic Compatibility (EMC)

To fully comply with EMC directive and protect against interference caused
by RFI and EMI, the cable to the detector must be shielded and the detector
must be grounded. The shield should be grounded at the detector end.

48 Environmental Specifications

B Wiring Instructions

General Instructions for Electrical Wiring

page 49

Typical Wiring Configurations

page 51

AWG #

mm2

Ohm per 100 ft.

Ohm per 100 m

26

0.12 - 0.15

4.32

14.15

24

0.16 - 0.24

3.42

11.22

22

0.30 - 0.38

1.71

5.60

20

0.51 - 0.61

1.07

3.50

18

0.81 - 0.96

0.67

2.20

16

1.22 - 1.43

0.43

1.40

14

1.94 - 2.28

0.27

0.88

12

3.09 - 3.40

0.17

0.55

10

4.56 - 6.64

0.11

0.35

➣ In this appendix…

B.1 General Instructions for Electrical Wiring

Follow the instructions detailed in this section for determining the correct
wire gauge to be used for the installation.

1 Use Table 25 to determine the required wire gauge /size for general

wiring, such as relay wiring. Calculate the permitted voltage drop with
respect to load current, wire gauge and length of wires.

Table 25: Maximum DC resistance at 68°F (20ºC) for copper wire

2 Use Table 26 to select wire gauge for power supply wires. DO NOT

connect any circuit or load to detectors’ supply inputs.

 Select Number of detectors connected in one circuit.
 Select wiring Length per your installation requirements.
 Refer to Power Supply Range for voltage extreme applied.

General Instructions for Electrical Wiring 49

SharpEyeTM IR3 Flame Detector User Guide

Number

of

Detectors

Recommended Wire Diameter (AWG)

Power

Supply

Range

(VDC)

24

18

16

14 - -

22-32

20

18

16

14 - -

22-32

16

20

18

16

14

-

22-32

12

20

18

16

14

-

20-32

8

20

18

16

14

-

20-32

4 and less

20

18

16

16

14

20-32

Ft (m)

164

(50)

328

(100)

492

(150)

656

(200)

820

(240)

Max. Length from Power Supply to Last

Detector

Table 26: Wiring length in feet (meter)

Calculation Formula

Use the following formula to calculate minimum wire gauge per wire length
between the power supply (controller) and the detector, considering the
number of detectors on the same power line, where:

L = Actual wire length between the detector and the power supply.
N = Number of detectors per loop.
R = Resistance of wire per 100 m (see Table 26).
V = Voltage drop on the wire.
Calculate the voltage drop on the wire as follows:
V = 2L x R x N x 0.2A

100

20+V = Minimum required voltage of the power supply

0.2A is the maximum power consumption of the detector
For example,
If N=1 (1 detector in loop)

L=1000m
Wire size = 1.5mm² (see Table 25, the resistance per 100m for 1.5mm² is

1.4Ω)
You calculate the voltage drop in the wire as follows:
2 x 1000 x 1.4Ω x 1 x 0.2A = 5.6V

100

The minimum voltage of the power supply should be 20V + 5.6V = 25.6V

50 General Instructions for Electrical Wiring

TM 40/40I, Rev (6) July 2013

B.2 Typical Wiring Configurations

This section describes examples of typical wiring configurations.

Figure 8: Wiring Terminals

Typical Wiring Configurations 51

SharpEyeTM IR3 Flame Detector User Guide

Wiring
Option

Detector

Model

Terminals

5 8 9

1

40/40I-

1XXXX

Fault Relay

(N.C)

0-20mA

(Sink)

0-20mA

(Sink)

2

40/40I-

2XXXX

Fault Relay

(N.C)

Alarm Relay

(N.C)

0-20mA

Source

3

40/40I-

3XXXX

Fault Relay

(N.O)

Alarm Relay

(N.C)

0-20mA

Source

4

40/40I-

4XXXX

Fault Relay

(N.C)

Auxiliary

Relay (N.O)

Auxiliary

Relay (C)

5

40/40I-

5XXXX

Fault Relay

(N.O)

Auxiliary

Relay (N.O)

Auxiliary

Relay (C)

Table 27: Wiring Connections

Figure 9: Typical Wiring for 4 Wire Controllers (Using Option 1 or 2
Wiring)

52 Typical Wiring Configurations

TM 40/40I, Rev (6) July 2013

Figure 10: 0-20mA Wiring Option 1 (Sink 4-Wire) - Default

Figure 11: 0-20mA Wiring Option 1 (Converted to Source 3-Wire)

Typical Wiring Configurations 53

SharpEyeTM IR3 Flame Detector User Guide

Figure 12: 0-20mA Wiring Option 1 (Non-isolated Sink 3-Wire)

Figure 13: 0-20mA Wiring Option 2 and 3 (Source 3-Wire available
with the HART Protocol)

Note: There are no 0-20mA outputs in wiring options 4 and 5.

54 Typical Wiring Configurations

C RS-485 Communication Network

RS-485 Overview

page 55

➣ In this appendix…

C.1 RS-485 Overview

By using the RS-485 network capability of the IR3detector and additional
software, it is possible to connect up to 32 detectors in an addressable
system with four (4) wires only (2 for power and 2 for communication).
Using repeaters, the number of detectors can be much larger (32 detectors
for each repeater) up to 247 on the same four (4) wires. When using the
RS-485 network, it is possible to read each detector status (FAULT,
WARNING, and ALARM) and to initiate a BIT to each detector individually.

For more details, consult Spectrex.

Figure 14: RS-485 Networking

RS-485 Overview 55

SharpEyeTM IR3 Flame Detector User Guide

56 RS-485 Overview

D Accessories

Long Range IR3 Fire Simulator

page 57

Tilt Mount - P/N 40/40-001

page 60

Duct Mount P/N 777670

page 61

Weather Protection - P/N 777163

page 62

Laser Detection Coverage Pointer - P/N 777166

page 63

Air Shield - P/N 777650

page 64

➣ In this appendix…

This appendix describes the accessories that can help you maximize fire
detection with the SharpEye IR3flame detector:

D.1 Long Range IR3 Fire Simulator

The SharpEye IR3 Long Range Fire Simulator 20/20-310 is designed
specifically for use with SharpEye flame detectors. The Fire Simulator emits
IR radiation in a unique sequential pattern corresponding to and
recognizable by the detector as fire. This allows the detectors to be tested
under simulated fire conditions without the associated risks of an open
flame.

There is an optional beam collimator, model no. 20/20-190, specially
designed for extended test range.

Figure 15: SharpEye Long Range Fire Simulator 20/20-310

Long Range IR3 Fire Simulator 57

SharpEyeTM IR3 Flame Detector User Guide

Target Point

D.1.1 Unpacking

Verify that you have received the following contents:

 Delivery form
 Fire Simulator with integral batteries
 Battery charger
 Optional Beam Collimator
 Storage case

D.1.2 Operating Instructions

Warning: Do not open the Fire Simulator to charge the batteries or for any
other reason in a hazardous area.

Caution: The following test simulates a real fire condition and may activate
the extinguishing system or other alarms. If this is not desired,
disconnect/inhibit them before the test and reconnect after the simulation.

➣ To simulate a fire:

1 Aim the Fire Simulator towards the detector’s Target Point

Figure 16: 40/40I IR3 Detector Target Point

2 When testing keep a distance of at least 50 cm (20 inches) from the

detector.

3 Press the operation button once. Fire simulation lasts for 20 seconds.

The detector sends an alarm signal (solid red LED).

58 Long Range IR3 Fire Simulator

TM 40/40I, Rev (6) July 2013

Sensitivity

Detection
Range (ft. / m)

Standard Test
Range (ft. / m)

Extended Test
Range (ft. / m)

1 (Low)

50 / 15

3.8 / 1.2

7 / 2.2

2

100 / 30

7 /2.2

14.5 / 4.5

3

150 / 45

10 / 3.2

22 / 7

4 (High)

215 / 65

14.5 / 4.5

29 / 9

4 Wait 20 seconds before repeating the test.
5 Verify that the optical window is clean.

D.1.3 Range

Table 28: Sensitivity Ranges

Notes:

 The minimum distance from the detector is 20 inches (50 cm).
 The optional beam collimator is fitted for Extended Range.

At extreme temperatures, there is a 15% maximum reduction in the
range.

Important: Keep the Fire Simulator in a safe place when not in use.

D.1.4 Charging the Battery

The Fire Simulator uses NiCd batteries as a rechargeable power source.
When the batteries are fully charged, the simulator operates for at least 60
times without recharging. An internal buzzer is sounded when the voltage
from the batteries is lower than the required operational level.

➣ To charge the battery:

1 Place the Fire Simulator on a table in a safe area.
2 Turn the sealed plug (next to the operation button) counter-clockwise

with a suitable wrench.

3 Connect the battery charger.
4 Charge for a maximum of 14 hours.
5 Disconnect the charger.
6 Tighten the sealed plug clockwise.

Warning: Charge the simulator only when the battery is fully discharged.

During activation of the flame simulator, buzzer activation indicates that the
battery is discharged.

Long Range IR3 Fire Simulator 59

SharpEyeTM IR3 Flame Detector User Guide

Mechanical

 Explosion Proof Enclosure:
 NFPA (designed to meet)
 Class I, Division 1 & 2 Groups B, C and D
 Class II, Division 1 & 2 Groups E, F and G
 ATEX EX II2G NEMKO 02ATEX255
 EExd IIB T5 50°C per En 50-014 & EN50-018

Electrical

 Power: 8 VDC Max.
 6 x Rechargeable 1.2 VDC NiCd Batteries
 Current: 2.5A Avg.
 Charge: 400 mA for 14 Hours

Environment

 Temperature Range:-4 to +122ºF (-20 to +50ºC)
 Vibration Protection: 1g (10-50hz)
 Water and Dust: IP 67 per EN 60529

Physical

 Dimensions: 11.5 x 10.1 x 3.9 in

(292 x 258 x 100 mm)

 Weight; 7.5 lb. (3.4 Kg)

D.1.5 Technical Specifications

D.2 Tilt Mount - P/N 40/40-001

The Tilt mount provides accurate directional selection for optimum area
coverage.

Figure 17: Tilt Mount

60 Tilt Mount - P/N 40/40-001

TM 40/40I, Rev (6) July 2013

D.3 Duct Mount P/N 777670

The Duct Mount enables flame detection in areas where high temperatures
exist or where the detector cannot be installed inside the area. It comprises
a special duct mount arrangement with a specific optical window to allow
installation in high temperature duct applications. The mount can be used
with all Spectrex 40/40 Series flame detectors.

Figure 18: Duct Mount

Duct Mount P/N 777670 61

SharpEyeTM IR3 Flame Detector User Guide

D.4 Weather Protection - P/N 777163

The weather protector protects the detector from different weather
conditions, such as snow and rain.

Figure 19: Weather Protection

62 Weather Protection - P/N 777163

TM 40/40I, Rev (6) July 2013

D.5 Laser Detection Coverage Pointer - P/N 777166

The Laser Detection Coverage Pointer evaluates detector coverage on-site.
The device is an add-on accessory that enables designers and installers to
optimize detector location and assess the actual coverage of installed
detectors.

The device is universal and can be used with all 40/40 SharpEye Optical
Flame Detectors.

Figure 20: Laser Detection Coverage Pointer

Laser Detection Coverage Pointer - P/N 777166 63

SharpEyeTM IR3 Flame Detector User Guide

D.6 Air Shield - P/N 777650

The Air Shield enables you to install the detector in dirty areas and using
compressed air, keep the window clean. This prevents the accumulation of
dirt on the window and enables the detector to continue to operate under
harsh conditions.

When the air shield is fitted on the detector, it reduces the cone of vision of
the detector by ±5° in each direction.

Figure 21: Air Shield

64 Air Shield - P/N 777650

E SIL-2 Features

40/40I Flame Detector

page 65

➣ In this appendix…

E.1 40/40I Flame Detector

This appendix details the special conditions to comply with the requirements
of EN 61508 for SIL 2.

The 40/40I Flame Detector can only be used in low or high demand mode
applications, see IEC 61508.4, Chapter 3.5.12.

E.1.1 Safety Relevant Parameters

Perform the following functional checks of the detector:

 Alternative 1: Functional check of the detector every 180 days:

 HFT: 0
 PFD: 3.0 x 10 -4 (≈ 3% of SIL-2) if only Alarm Relay is used for

alerting.

 PFD: 3.2 x 10 -4 (≈ 3.2% of SIL-2) if 0-20mA – interface is used as

alarm.

 PFH: 1.5 x 10 –7 1/h (≈ 14.9% of SIL-2) for 0-20mA application.
 SFF: 95% fulfills the conditions of EN 61508 for SIL2

 Alternative 2: Functional check of the detector every 365 days:

 HFT: 0
 PFD: 4.5 x 10 -4 (≈ 4.5% of SIL-2) if only Alarm Relay is used for

alerting.

 PFD: 4.9 x 10 -4 (≈ 4.9% of SIL-2) if 0-20mA – interface is used

signal current as alarm.

 PFH: 1.5 x 10 –7 1/h (≈ 14.9% of SIL-2) for 0-20mA application.
 SFF: 95% fulfills the conditions of EN 61508 for SIL2

E.1.2 Guidelines for Configuring, Installing, Operating and

Service

The alert conditions according to SIL 2 can be implemented by an:
 Alert signal via 20mA current loop

or

 Alert signal via alarm relay and the fault relay

40/40I Flame Detector 65

SharpEyeTM IR3 Flame Detector User Guide

E.1.2.1 Conditions for Safe Operating

1 The flame detector shall consist only of the approved hardware and

software modules.

2 The 24V power supply must fulfill the requirements for PELV / SELV of

EN 60950.

3 The automatic BIT (Built-In-Test) must be activated.
4 The set-up parameters must be verified (as described in

Using the 0-20mA Interface for Alerting on page 66, point 1 and in Using
the Alarm Relay Contact for Alerting on page 66, point 1) and the

function of the 40/40 Flame Detector (flame detection, function of the
0-20mA interface, relay functions) must be checked completely.

E.1.2.2 Using the 0-20mA Interface for Alerting

1 The following parameters shall be set:

 AUTOMATIC BIT test = on
 Connected to 0-20mA Terminals

2 The following allowed output current must be supervised with an

accuracy of ± 5%:

 Normal State = 4mA
 Warning State = 16mA
 Alarm State = 20mA

3 The output current must be supervised regarding the over-and under run

of the 0-20mA.

4 The 0-20mA can be used as low and high demand mode.

E.1.2.3 Using the Alarm Relay Contact for Alerting

1 The following parameters shall be set:

 AUTOMATIC BIT Test = on
 Connected to N.C contact of Alarm Relay Terminals
 Connected to Fault Relay Terminals

2 The relay contacts (“alarm” – and “faulty relay”) must be protected with

a fuse rated at 0.6 of the nominal specified relay contact current.

3 The maximum contact rating that is allowed per SIL-2 is 30VDC.
4 It is to be considered that the contact of the Alarm Relay opens if there

is a fire alarm.

5 During the forwarding and evaluation of the alarm it must be noted that

the relay contact opens.

6 The alarm relay can be used as low demand only.

66 40/40I Flame Detector

TM 40/40I, Rev (6) July 2013

E.1.2.4 Other

1 The complete function of the flame detector (flame detection, function of

the 0-20mA interface, the relays) must be examined at least every six or
twelve months (see Safety Relevant Parameters on page 65, when the
flame detector must be switched OFF and ON.

2 The window of the sensor must be examined at appropriate time

intervals for partial contamination.

3 The HART and the RS 485 interfaces must not be used for the

transmission of the safety-related data.

40/40I Flame Detector 67

Technical Support

For all technical assistance or support, contact:

218 Little Falls Road
Cedar Grove, NJ 07009, USA
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Web-site: www.spectrex.net

Your Local Office:

SPECTREX INC.

Texas (USA)

Mr. Jay Cooley, Regional Sales Manager:
16203 Park Row, Suite 150
Houston, Texas 77084
USA

Phone: [phone]
Email: [e-mail]

Europe

Mr. Ian Buchanan, Regional Manager:
6 Applecross Road
Glasgow G66 3TJ
United Kingdom

Phone: [phone]
Email: [e-mail]

Far East

Mr. Deryk Walker, Regional Sales Manager
59 Fen Ji Hu, Danshui
Taipei County 25163
Taiwan (ROC)

Phone: [phone]
Mobile: [phone]
Email: [e-mail]

68 Technical Support