Oldham SharpEye NP40IGB User manual

Ref : NP40IGB
REV A –Nov 2009
USER GUIDE

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consumables (sensors, filters, etc.)

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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
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.

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Abbreviations and Acronyms
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 Transducer-communication
protocol
IAD Immune at Any Distance
IECEx International Electrotechnical Commission Explosion
IPA Isopropyl Alcohol
IR Infrared
JP4 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

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Table of Contents
About this Guide ........................................................................................................................4
Abbreviations and Acronyms ......................................................................................................5
1INTRODUCTION.................................................................................................................9
1.1 Overview .......................................................................................................................9
1.2Model and Types ............................................................................................................9
1.3 Features and Benefits.................................................................................................... 11
1.4 Principles of Operation.................................................................................................. 11
1.4.1 Hydrocarbon Fire Detection ................................................................................... 11
1.4.2 Heated Optics........................................................................................................ 11
1.4.3 HART Protocol..................................................................................................... 12
1.4.4 RS-485 Modbus .................................................................................................... 12
1.4.5 Product Certification.............................................................................................. 12
1.5 Performance Considerations .......................................................................................... 13
1.5.1 Detection Sensitivity.............................................................................................. 13
1.5.2 Cone of Vision...................................................................................................... 14
1.5.3 False Alarms Prevention ........................................................................................ 15
1.5.4 Visual Indicators ................................................................................................... 16
1.5.5 Output Signals....................................................................................................... 17
1.5.6 Detector Status...................................................................................................... 17
1.5.7 Auxiliary Relay as End-of-Line Resistor ................................................................. 18
1.6 Internal Detector Tests .................................................................................................. 19
1.6.1 Continuous Feature Test......................................................................................... 19
1.6.2 Built-In-Test (BIT)................................................................................................ 19
2INSTALLING THE DETECTOR.......................................................................................21
2.1 General Guidelines ....................................................................................................... 21
2.2 Unpacking the Product.................................................................................................. 22
2.2.1 Checking the Product Type .................................................................................... 22
2.3 Required Tools ............................................................................................................. 22
2.4 Certification Instructions ............................................................................................... 23
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 Specifications ....................................................................................... 25
2.6.2 Tilt Mount Assembly ............................................................................................. 25
2.7 Connecting the Detector................................................................................................ 27
2.7.1 Verifying the Detector Wiring ................................................................................ 28
2.8 Configuring your Detector............................................................................................. 29
2.8.1 Sensitivity............................................................................................................. 29
2.8.2 Alarm Delay.......................................................................................................... 30
2.8.3 Address Set-up...................................................................................................... 30
2.8.4 Function Set-up ..................................................................................................... 30
2.8.5 Heated Optics........................................................................................................ 31

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3OPERATING THE DETECTOR.......................................................................................31
3.1 Powering Up ................................................................................................................ 31
3.2 Safety Precautions ........................................................................................................ 31
3.2.1 Default Functions Settings ..................................................................................... 32
3.3 Testing Procedures........................................................................................................ 32
3.3.1 Automatic BIT Test............................................................................................... 33
3.3.2 Manual BIT Test................................................................................................... 33
3.3.3 Testing with Fire Simulator Model 20/20-310 ......................................................... 33
4MAINTENANCE AND TROUBLESHOOTING................................................................34
4.1 Maintenance................................................................................................................. 34
4.1.1 General Procedures................................................................................................ 34
4.1.2 Periodic Procedures............................................................................................... 34
4.1.3 Keeping Maintenance Records ............................................................................... 35
4.2 Troubleshooting............................................................................................................ 35
Appendices ................................................................................................................................36
ATechnical Specifications ......................................................................................................37
BWiring Instructions .............................................................................................................40
CRS-485 Communication Network........................................................................................43
DAccessories..........................................................................................................................44
ESIL-2 Features ....................................................................................................................48

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List of Figures
Figure 1: Horizontal Field of View.................................................................................................................................14
Figure 2: Vertical Field of View......................................................................................................................................15
Figure 3: Indication LED: Indication LED....................................................................................................................16
Figure 4: Detector with Tilt Mount.................................................................................................................................24
Figure 5: Tilt Mount Assembly........................................................................................................................................25
Figure 6: Tilt Mount Assembly (dimensions in mm and inches)...............................................................................26
Figure 7: Detector with Cover Removed........................................................................................................................27
Figure 8: Wiring Terminals ..............................................................................................................................................41
Figure 9: Typical Wiring For 4 Wire Controllers (Using Option 1 or 2 Wiring)....................................................42
Figure 10: 0-20mA Wiring (Sink) 4-Wire Connection................................................................................................42
Figure 11: 0-20mA Wiring (Source) 3-Wire Connection............................................................................................43
Figure 12: RS-485 Networking........................................................................................................................................43
Figure 13: SharpEye IR3 Long Range Fire Simulator 20/20-310.............................................................................44
Figure 14: 40/40I IR3 Detector Target Point.................................................................................................................45
Figure 15: Tilt Mount........................................................................................................................................................46
Figure 16: Weather Protection.........................................................................................................................................47
Figure 17: Laser Detection Coverage Pointer...............................................................................................................47
Figure 18: Air Shield .........................................................................................................................................................48
List of Tables
Table 1: WiringOptions....................................................................................................................................................10
Table 2: Sensitivity Range Levels ...................................................................................................................................13
Table 3: Fuel Sensitivity Ranges.....................................................................................................................................14
Table 4: Immunity to False Alarm Sources ...................................................................................................................15
Table 5: Welding Immunity Distance.............................................................................................................................16
Table 6: LED Indications..................................................................................................................................................16
Table 7: Available Output Types.....................................................................................................................................17
Table 8: Detector Status....................................................................................................................................................17
Table 9: Output Signals versus Detector State..............................................................................................................18
Table 10: Results of a Successful BIT............................................................................................................................20
Table 11: Results of an Unsuccessful BIT.....................................................................................................................20
Table 12: Results of a Successful Manual BIT .............................................................................................................21
Table 13: Results of an Unsuccessful Manual BIT ......................................................................................................21
Table 14: Tools ...................................................................................................................................................................22
Table 15: USA Version.....................................................................................................................................................25
Table 16: European Version.............................................................................................................................................25
Table 17: Model 40/40I Wiring Options........................................................................................................................28
Table 18: Sensitivity Settings...........................................................................................................................................29
Table 19: Functions............................................................................................................................................................30
Table 20: Default Function Values..................................................................................................................................32
Table 21: Results of Successful Fire Simulator Test....................................................................................................33
Table 22: Troubleshooting Table.....................................................................................................................................35
Table 23: Contact Ratings.................................................................................................................................................37
Table 24: 20 mA Current Output.....................................................................................................................................38
Table 25: Maximum DC resistance at 68°F (20ºC) for copper wire..........................................................................40
Table 26: Wiring length in feet (meter)..........................................................................................................................41
Table 27: Wiring Connections.........................................................................................................................................42
Table 28: Sensitivity Ranges............................................................................................................................................45

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1INTRODUCTION
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 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 EExd flameproof with an integral, segregated,
rear, EExe terminal compartment (avoiding exposure of the sensors and electronics to
surrounding environment). Hence the combined approval EExde IIB + H2 T5 (75°C) or
T4 (85°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.
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 TM777060.
The Part Numbers are defined as:

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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
Table 1describes the wiring options in detail.
Table 1: Wiring Options
Wiring
Option Connections Provided
1Power Manual
BIT Fault Relay N.C
Alarm
Relay
N.O
4-20mA
Sink RS-485
2Power Manual
BIT
Fault
Relay
N.O
Alarm
Relay
N.O
4-20mA
Source RS-485
3Power Manual
BIT
Fault
Relay
N.O
Alarm
Relay
N.O
4-20mA
Source RS-485
4Power Manual
BIT Fault Relay N.C
Alarm
Relay
N.O
Auxiliary
N.O RS-485
5Power Manual
BIT
Fault
Relay
N.O
Alarm
Relay
N.O
Auxiliary
N.O RS-485
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 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 22.

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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.
•Advanced Digital Processing of the Dynamic Characteristics of Fire: Flickering,
threshold correlation and ratio.
•Multi IR Channels: Between 3-5 microns
•Field Programmable Sensitivity: Four ranges to avoid zone crossover.
•Built In Test (BIT): Manual and Automatic (see Built-In-Test (BIT) on page 19).
•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 Protocolon page 12).
•EExde: Integral junction box for easy wiring.
•SIL-2: TÜV approved.
•Hazardous Area Certification: ATEX, IECEx, FM, CSA.
•EN54-10: Approved by LPCB (BRE, UK).
1.4 Principles of Operation
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.
The detector’s principle of operation is based on patented IR3 technology. This
technology identifies the unique spectral signature that hot CO2has 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 sensorsare
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 HeatedOptics
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.

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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 68°F (20°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 HART-enabled.
HART technology is easy to use and very reliable.
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 40/40 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
1.4.5.1ATEX, IECEx
The 40/40I Flame Detector is certified to:
•ATEX Ex II 2 GD per SIRA 07ATEX 1149 and IECEx SIR. 07.0085.
•EExde IIB + H2:
•T5 Ambient Temp. -55°C to +75°C.
•T4 Ambient Temp. -55°C to +85°C.
This product is suitable to use in hazardous zones 1 and 2 with IIB + H2gas group vapors
present.
1.4.5.2FM, CSA
The 40/40I Flame Detector is certified to FM and CSA Explosion Proof per:
•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.
•For more details see Report Project ID3029553.

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1.4.5.3SIL-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-2Features on page 48 and TÜV Report No. 968/EZ326.00/008.
1.4.5.4EN54-10
The 40/40I Flame Detector is certified to EN54-10 and CPD.
•The detector has been tested and approved per EN54-10 by LPCB (BRE, UK).
•This test includes functional test, environmental test, EMI/EMC test and software
check.
•For more details see EN54-10 Report No. TE243256.
1.5 Performance Considerations
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).
1.5.1.1Standard Fire
Defined as a 1ft2/ 0.1m2n-heptane, with maximum wind speed of 6.5 ft/sec (2 m/sec).
1.5.1.2Sensitivity 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 figure 2
Table 2: Sensitivity Range Levels
Level Response Time (sec) Sensitivity Range-ft (m)
1350 (15)
2 Default 5100 (30)
38150 (45)
410 215 (65)
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.

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1.5.1.3Other 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
Type Of Fuel Percent of Max. Distance at each Sensitivity
Range
Gasoline 100%
N-Heptane 100%
JP4 70%
Kerosene 70%
Diesel Fuel 70%
Alcohol 95% 60%
IPA 60%
Methanol 55%
Methane 45%
LPG 45%
Paper 35%
Polypropylene 15%
1.5.2 Cone of Vision
•Horizontal: 100°
Figure 1: Horizontal Field of View

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•Vertical: +50° (down) , -45° (up)
Figure 2: Vertical Field of View
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
Radiation Source Immunity
Distance ft (m)
Indirect or reflected sunlight IAD
Vehicle headlights (low beam) conforming to MS53023-1IAD
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 M251073-1IAD
Flashlight (MX 991/U) IAD
Radiation heater, 3000 W >3 (1)
Radiation heater, 1000 W with fan IAD

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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 >10 (3)
Notes:
•IAD = Immune at Any Distance.
•All sources are chopped from 0 to 20 Hz.
Table 5: Welding Immunity Distance
Sensitivity Setting Detection Range Immunity Distance
150 ft (15m) >6 ft (2m)
2100 ft (30m) >12 ft (4m)
3150 ft (45m) >17 ft (6m)
4215 ft (65m) >25 ft (7.5m)
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
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
Figure 3: Indication LED: Indication LED
Indicator LED

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1.5.5 Output Signals
Outputs are available according to the default configuration or the wiring options selected
for the 40/40I IR3 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
Output Type Version Detector Status
40/40I –Options 1XXXX,
4XXXX, 5XXXX The relay is N.C.Alarm relay
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.
40/40I –Options 1XXXX,
2XXXX, 4XXXX The relay is N.C. energizedFault relay
40/40I –Options 3XXXX,
5XXXX The relay is N.O. energized
40/40I –Option 1XXXX SINK Option, with HART
protocol (can be changed to
Source –see Figure 10)
0-20mA current
output
40/40I –Options 2XXXX
and 3XXXX SOURCE Option with HART protocol
RS-485 All versions Modbus Protocol
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
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.
In each state, the detector activates different outputs, as specified in table 9.

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Table 9: Output Signals versus Detector State
Detector
State LED Indicator LED Mode Alarm Relay Auxiliary Relay Fault Relay mA output
Normal Green 1Hz Off Off On 5 mA
Warning Red 2Hz Off On(4) On 10 mA
Alarm(1) Red Constant On On On 15 mA
Off On 15 mALatch(2) Red Constant On
On(4) On 15 mA
BIT Fault(3) Yellow 4Hz Off Off Off 2 mA
Warning at
BIT Fault Red 2Hz Off On(4) Off 10 mA
Alarm at BIT
Fault Red Constant
On On Off 15 mA
Fault Yellow 4Hz Off Off Off 0 mA
Notes:
1The alarm outputs are activated while alarm conditions exist and will stop
approximately 5 seconds after the fire is no longer detected.
2The Alarm state can be optionally latched via programmed function. (Default is non-
latching).
3The detector will remain in BIT Fault state until it has passed a successful BIT.
4The Auxiliary Relay can be activated at the Warning level or Alarm level, depending
on programmed function.
5The outputs depend on the wiring options.
1.5.6.1Optional 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 ManualBIT
on page 20).
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 Model 40/40I –4XXXX and 5XXXX
•The 0-20mA is available only in Model 40/40I –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 Model 40/40I-
4XXXX, and 5XXXX only. In this case, the Auxiliary Relay is active as long as the
detector is not in Fault state.

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1.6 Internal Detector Tests
The detector performs two types of self tests:
•Continuous Feature Test, page 19
•Built-In-Test (BIT), page 19
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
•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.

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1.6.2.1How 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.
1.6.2.2Automatic BIT
The detector automatically performs a BIT every 15 minutes. A successful BIT sequence
does not activate any indicator.
The results of a successful and unsuccessful BIT are listed in
Table 10 and
Table 11.
Table 10: Results of a Successful BIT
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 (5 mA)
Power LED Green, Flashing, 1 Hz On (Normal)
Table 11: Results of an Unsuccessful BIT
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
1.6.2.3Manual BIT
The BIT is manually initiated by momentarily connecting Terminal 3 with Terminal 2 (or
a switch across these terminals in the safe area).
If the BIT is unsuccessful, all outputs will function as described for Automatic BIT, but
the BIT is now automatically executed every 1 minute. This continues until a successful
BIT occurs, when the detector will resume normal operation.
The results of a successful and unsuccessful Manual BIT are listed in Table 12 and Table
13.

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Table 12: Results of a Successful Manual BIT
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 BITis set to YES)
0-20mA output Wiring option 1, 2, 3:
•Initiates 15 mA only when the function Alarm BIT is set to
YES
•Initiates 10 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
Table 13: Results of an Unsuccessful Manual BIT
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
1.6.2.4Manual 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.
2INSTALLING THE DETECTOR
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
•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