Sierra Monitor Corporation 3600I User manual

3600I
MODEL 3600I
TRIPLE IR (IR3) FLAME DETECTOR
APPLICABILITY & EFFECTIVITY
Effective for all Model 3600I Detectors manufactured after June 1, 2010.
Instruction Manual Part Number T15014
Rev. 3 August 2010

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ABOUT THIS GUIDE
This guide describes the Model 3600I 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, 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.

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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
1INTRODUCTION.......................................................................................................................... 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 ........................................................................................................... 5
1.4.5 PRODUCT CERTIFICATION.......................................................................................... 6
1.5 PERFORMANCE CONSIDERATIONS............................................................................... 6
1.5.1 DETECTION SENSITIVITY............................................................................................. 6
1.5.2 CONE OF VISION........................................................................................................... 8
1.5.3 FALSE ALARMS PREVENTION................................................................................... 10
1.5.4 VISUAL INDICATORS .................................................................................................. 11
1.5.5 OUTPUT SIGNALS ....................................................................................................... 12
1.5.6 DETECTOR STATUS ................................................................................................... 13
1.5.7 AUXILIARY RELAY AS END-OF-LINE RESISTOR ..................................................... 14
1.6 INTERNAL DETECTOR TESTS ....................................................................................... 14
1.6.1 CONTINUOUS FEATURE TEST .................................................................................. 14
1.6.2 BUILT-IN-TEST (BIT) .................................................................................................... 15
2INSTALLING THE DETECTOR ................................................................................................ 18
2.1 GENERAL GUIDELINES .................................................................................................. 18
2.2 UNPACKING THE PRODUCT.......................................................................................... 19
2.2.1 CHECKING THE PRODUCT TYPE.............................................................................. 19
2.3 REQUIRED TOOLS .......................................................................................................... 19
2.4 CERTIFICATION INSTRUCTIONS................................................................................... 20
2.5 INSTALLATION CABLES.................................................................................................. 21
2.5.1 CONDUIT INSTALLATION ........................................................................................... 21
2.6 INSTALLING THE TILT MOUNT (PART NO. 3600I)........................................................ 22
2.6.1 TILT MOUNT SPECIFICATIONS.................................................................................. 22
2.6.2 TILT MOUNT ASSEMBLY ............................................................................................ 23

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2.7 CONNECTING THE DETECTOR ..................................................................................... 24
2.7.1 VERIFYING THE DETECTOR WIRING ....................................................................... 25
2.8 CONFIGURING YOUR DETECTOR................................................................................. 27
2.8.1 SENSITIVITY................................................................................................................. 28
2.8.2 ALARM DELAY ............................................................................................................. 28
2.8.3 ADDRESS SET-UP....................................................................................................... 28
2.8.4 FUNCTION SET-UP...................................................................................................... 29
2.8.5 HEATED OPTICS ......................................................................................................... 29
3OPERATING THE DETECTOR................................................................................................. 30
3.1 POWERING UP................................................................................................................. 30
3.2 SAFETY PRECAUTIONS ................................................................................................. 31
3.2.1 DEFAULT FUNCTIONS SETTINGS............................................................................. 31
3.3 TESTING PROCEDURES ................................................................................................ 32
3.3.1 AUTOMATIC BIT TEST ................................................................................................ 32
3.3.2 MANUAL BIT TEST....................................................................................................... 32
3.3.3 TESTING WITH FIRE SIMULATOR MODEL 20/20-310 .............................................. 32
4MAINTENANCE AND TROUBLESHOOTING.......................................................................... 34
4.1 MAINTENANCE ................................................................................................................ 34
4.1.1 GENERAL PROCEDURES........................................................................................... 34
4.1.2 PERIODIC PROCEDURES........................................................................................... 35
4.1.3 KEEPING MAINTENANCE RECORDS ........................................................................ 35
4.2 TROUBLESHOOTING .................................................................................................. 36

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APPENDICES................................................................................................................................... 37
ASPECIFICATIONS..................................................................................................................... 38
A.1 TECHNICAL SPECIFICATIONS....................................................................................... 38
A.2 ELECTRICAL SPECIFICATIONS ..................................................................................... 39
A.3 OUTPUTS ......................................................................................................................... 39
A.4 MECHANICAL SPECIFICATIONS.................................................................................... 41
A.5 DIMENSIONS.................................................................................................................... 41
A.6 WEIGHT ............................................................................................................................ 41
A.7 ENVIRONMENTAL SPECIFICATIONS ............................................................................ 42
BWIRING INSTRUCTIONS.......................................................................................................... 43
B.1 GENERAL INSTRUCTIONS FOR ELECTRICAL WIRING............................................... 43
B.2 TYPICAL WIRING CONFIGURATIONS ........................................................................... 44
CRS-485 COMMUNICATION NETWORK................................................................................... 48
C.1 RS-485 OVERVIEW.......................................................................................................... 48
DACCESSORIES......................................................................................................................... 49
D.1 LONG RANGE IR3 FIRE SIMULATOR ............................................................................ 49
D.1.1 UNPACKING ................................................................................................................. 49
D.1.2 OPERATING INSTRUCTIONS ..................................................................................... 50
D.1.3 RANGE.......................................................................................................................... 51
D.1.4 CHARGING THE BATTERY ......................................................................................... 51
D.1.5 TECHNICAL SPECIFICATIONS................................................................................... 52
D.2 TILT MOUNT - P/N 3600-001 ........................................................................................... 52
D.3 WEATHER PROTECTION - P/N 777163 ......................................................................... 53
D.4 LASER DETECTION COVERAGE POINTER - P/N 777166............................................ 54
D.5 AIR SHIELD - P/N 777161 ................................................................................................ 54
ESIL-2 FEATURES...................................................................................................................... 55
E.1 3600I FLAME DETECTOR................................................................................................ 55
E.1.1 SAFETY RELEVANT PARAMETERS .......................................................................... 55
E.1.2 GUIDELINES FOR CONFIGURING, INSTALLING, OPERATING AND
SERVICE ................................................................................................................................... 55
LIMITED WARRANTY...................................................................................................................... 57

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LIST OF FIGURES
Figure 1: Horizontal Field of View ....................................................................................................... 8
Figure 2: Vertical Field of View ........................................................................................................... 9
Figure 3: Indication LED: Indication LED .......................................................................................... 11
Figure 4: Detector with Tilt Mount ..................................................................................................... 22
Figure 5: Tilt Mount Assembly........................................................................................................... 23
Figure 6: Tilt Mount Assembly (dimensions in mm and inches)........................................................ 23
Figure 7: Detector with Cover Removed........................................................................................... 25
Figure 8: Wiring Terminals ................................................................................................................ 44
Figure 9: Typical Wiring for 4 Wire Controllers (Using Option 1 or 2 Wiring) ................................... 45
Figure 10: 0-20mA Wiring Option 1 (Sink 4-Wire) - Default.............................................................. 46
Figure 11: 0-2mA Wiring Option 1 (Converted to Source 3-Wire) .................................................... 46
Figure 12: 0-20mA Wiring Option 1 (Unisolated Sink 3-Wire) .......................................................... 47
Figure 13: 0-20mA Wiring Option 2 and 3 (Source 3-Wire).............................................................. 47
Figure 14: RS-485 Networking.......................................................................................................... 48
Figure 15: IR3 Long Range Fire Simulator 20/20-310 ...................................................................... 49
Figure 16: 3600I IR3 Detector Target Point ...................................................................................... 50
Figure 17: Tilt Mount ......................................................................................................................... 52
Figure 18: Weather Protection .......................................................................................................... 53
Figure 19: Laser Detection Coverage Pointer................................................................................... 54
Figure 20: Air Shield.......................................................................................................................... 54

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LIST OF TABLES
Table 1: Wiring Options....................................................................................................................... 3
Table 2: Sensitivity Range Levels ....................................................................................................... 7
Table 3: Fuel Sensitivity Ranges......................................................................................................... 8
Table 4: Immunity to False Alarm Sources ....................................................................................... 10
Table 5: Welding Immunity Distance................................................................................................. 11
Table 6: LED Indications ................................................................................................................... 11
Table 7: Available Output Types ....................................................................................................... 12
Table 8: Detector Status.................................................................................................................... 13
Table 9: Output Signals versus Detector State................................................................................. 13
Table 10: Results of a Successful BIT .............................................................................................. 16
Table 11: Results of an Unsuccessful BIT ........................................................................................ 16
Table 12: Results of a Successful Manual BIT ................................................................................. 17
Table 13: Results of an Unsuccessful Manual BIT ........................................................................... 17
Table 14: Tools.................................................................................................................................. 19
Table 15: USA Version...................................................................................................................... 22
Table 16: European Version ............................................................................................................. 22
Table 17: Model 3600I Wiring Options.............................................................................................. 26
Table 18: Sensitivity Settings ............................................................................................................ 28
Table 19: Functions........................................................................................................................... 29
Table 20: Default Function Values .................................................................................................... 31
Table 21: Results of Successful Fire Simulator Test ........................................................................ 33
Table 22: Troubleshooting Table ...................................................................................................... 36
Table 23: Electrical Specifications .................................................................................................... 39
Table 24: Contact Ratings................................................................................................................. 40
Table 25: 20 mA Current Output ....................................................................................................... 40
Table 26: Electromagnetic Compatibility (EMC) ............................................................................... 42
Table 27: Maximum DC resistance at 68°F (20ºC) for copper wire .................................................. 43
Table 28: Wiring length in feet (meter).............................................................................................. 43
Table 29: Wiring Connections ........................................................................................................... 45
Table 30: Sensitivity Ranges............................................................................................................. 51

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1 INTRODUCTION
➣ In this chapter…
Overview page 1
Model and Types page 2
Features and Benefits page 4
Principles of Operation page 4
Performance Considerations page 6
Internal Detector Tests page 14
1.1 OVERVIEW
The Model 3600I is a flame detector that utilizes improved IR3 technology to provide
state-of-the-art fire protection. The 3600I 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 3600 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 3600 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.

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1.2 MODEL AND TYPES
The 3600I 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: 3600I 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:
40/40I X XXXX
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 1 describes the wiring options in detail.
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Table 1: Wiring Options
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 -
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 3600I-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 19.

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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: See Table 4 on page 10.
•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 15).
•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).
•EExde: Integral junction box for easy wiring.
•SIL-2: TÜV approved.
•Hazardous Area Certification: ATEX, IECEx, FM.
1.4 PRINCIPLES OF OPERATION
This section describes the 3600I principles of operation and includes:
•Hydrocarbon Fire Detection, page 4
•Heated Optics, page 5
•HART Protocol, page 5
•RS-485 Modbus, page 5
•Product Certification, page 6
1.4.1 HYDROCARBON FIRE DETECTION
The Model 3600I 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.

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The IR3 technique utilizes few 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. The
fourth IR sensor is sensitive to a different band within the emission peak of hot CO2. In
the event of fire, the signal measured in the first sensor is significantly higher than those
measured in the second 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). 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).If exposed to non-fire radiation sources, the specific conditions required does
not occur, and the detector does not react.
1.4.2 HEATED OPTICS
The 3600 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 27.
1.4.3 HART PROTOCOL
The 3600 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 is available in wiring
options 2 and 3, see Table 1.
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 3600 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.

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1.4.5 PRODUCT CERTIFICATION
The 3600I Flame Detectors have the following certifications:
•ATEX, IECEX, page 6
•SIL-2 Approved, page 6
1.4.5.1 ATEX, IECEX
The 3600I 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.
1.4.5.2 SIL-2 APPROVED
The 3600I 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 55 and TÜV Report No. 968/EZ348.00/009.
1.5 PERFORMANCE CONSIDERATIONS
This section describes performance aspects of the 3600I and includes:
•Detection Sensitivity, page 6
•Cone of Vision, page 8
•False Alarms Prevention, page 10
•Visual Indicators, page 11
•Output Signals, page 12
•Detector Status, page 13
•Auxiliary Relay as End-of-Line Resistor, page 14
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).

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1.5.1.1 STANDARD FIRE
Defined as a 1ft2/ 0.1m2n-heptane pan fire, with maximum wind speed of 6.5 ft/sec (2
m/sec).
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
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)
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.
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: 1ft2(0.1m2).
•For gas flame – 20 inch (0.5m) high, 8 inch (0.2m) width plume fire.
•Maximum Response Time: 10 sec.

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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

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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 MS53023-1 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)
Notes:
•IAD = Immune at Any Distance.
•All sources are chopped from 0 to 20 Hz.

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Table 5: Welding Immunity Distance
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)
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: Indicator 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 3600I 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
Alarm relay 3600I – Options 1XXXX, 4XXXX,
5XXXX
The relay is N.C.
3600I – Options 2XXXX, 3XXXX The relay is N.O. and N.C.
Auxiliary relay 3600I – Options 4XXXX and 5XXXX The relay is N.O.
Fault relay 3600I – Options 1XXXX, 2XXXX,
4XXXX
The relay is N.C. energized
3600I – Options 3XXXX, 5XXXX The relay is N.O. energized
0-20mA current
output
3600I – Option 1XXXX SINK Option, (can be changed to
Source – see Figure 10, Figure
101 and Figure 102)
3600I – Options 2XXXX and 3XXXX SOURCE Option with HART
protocol
RS-485 All versions Modbus Protocol