CCTV Model Flame Detector
Model 20/20CTIN-CTIP
User and Maintenance Manual
TM 788100, Rev. A January 2005
ATEX Approved
Ex II 2G
EExd IIB + H
2
T5
EExde IIB + H
2
T5
UL Approved
Class I, Groups C and D
Gost R Approved
1ExdIIBT5/H
2
218 Little Falls Rd., Cedar Grove, NJ 07009 USA;
Phone: +1 (973) 239 8398 Fax: +1 (973) 239 7614
Web-Site: www.spectrex.net
; Email: spectrex@spectrex.net
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.
Warning:
This manual should be carefully read 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.
Spectrex Inc. - SharpEye
TM
CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
I
T
ABLE OF CONTENTS
1. Scope ....................................................................................................1
1.1 P
RODUCT OVERVIEW .....................................................................................1
1.2 D
OCUMENT OVERVIEW...................................................................................2
2. Technical Description..........................................................................3
2.1 P
RINCIPLES OF OPERATION............................................................................3
2.1.1 Hydrocarbon fire detection....................................................................3
2.1.2 Identifying the CO
2
peak.......................................................................3
2.1.3 The limitations of IR-IR flame detectors................................................3
2.1.4 The advantages of IR3 technology .......................................................3
2.1.5 Video Picture ........................................................................................5
3. Performance .........................................................................................6
3.1 D
ETECTION SENSITIVITY.................................................................................6
3.2 F
ALSE ALARMS PREVENTION ..........................................................................9
4. Operation............................................................................................ 10
4.1 V
ISUAL INDICATIONS ....................................................................................10
4.2 O
UTPUT SIGNALS ........................................................................................ 11
4.2.1 Optional latching.................................................................................12
4.2.2 Built-In-Test (BIT) ...............................................................................12
4.2.3 CCTV Output......................................................................................12
4.3 M
ODE SELECTION........................................................................................13
4.3.1 Function Setup....................................................................................14
4.3.2 Sensitivity Ranges ..............................................................................14
4.3.3 Alarm Delay........................................................................................15
4.3.4 Addresses Setup ................................................................................15
4.4 B
UILT IN TEST .............................................................................................16
5.Technical Specifications.....................................................................18
5.1 E
LECTRICAL SPECIFICATIONS .......................................................................18
5.2 M
ECHANICAL SPECIFICATIONS ...................................................................... 21
5.3 E
NVIRONMENTAL SPECIFICATIONS
.................................................................22
6. Installation Instructions.....................................................................23
6.1 S
COPE........................................................................................................ 23
6.2 G
ENERAL CONSIDERATIONS .........................................................................23
6.3 P
REPARATIONS FOR INSTALLATION................................................................24
6.4 C
ONDUIT INSTALLATION................................................................................24
6.5 D
ETECTOR MOUNTING .................................................................................25
6.5.1 Swivel Mount Kit:....... .. .. .. .. .. ... .. .. ............................ .. ... .. .. .. .. ...............25
6.5.2 Swivel installation (Figs. No. 8 and 9):................................................25
6.6 W
IRING (REFER TO FIG. 11) .........................................................................28
6.7 T
ERMINAL WIRING (SEE FIG. NO.10 AND NO.11.)...........................................29
6.8 O
PERATION MODE .......................................................................................32
7. Operating Instructions......................................................................33
7.1 S
COPE........................................................................................................ 33
7.2 P
OWER-UP .................................................................................................33
7.3 R
ESET ........................................................................................................33
Spectrex Inc. - SharpEye
TM
CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
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7.4 F
UNCTIONAL TESTING...................................................................................33
7.4.1 Manual BIT Test .................................................................................34
7.4.2 Testing with fire simulator...................................................................34
7.5 S
AFETY PRECAUTIONS .................................................................................35
8. Maintenance Instructions..................................................................36
8.1 S
COPE........................................................................................................ 36
8.2 M
AINTENANCE INSTRUMENTATION AND PERSONNEL .......................................36
8.3 P
REVENTIVE MAINTENANCE PROCEDURES..................................................... 36
8.4 P
ERIODIC MAINTENANCE PROCEDURES.........................................................36
8.4.1 Power-Up Procedure ..........................................................................36
8.4.2 Functional Test Procedure..................................................................36
8.5 M
AINTENANCE RECORDS.............................................................................. 37
8.6 T
ROUBLESHOOTING .....................................................................................37
8.6.1 Fault Indication ...................................................................................37
8.6.2 False Alarm or Warning Indication......................................................37
Appendix A - Wire Selection Tables..................................................... 39
Appendix B – Typical Wiring Configurations.......................................41
Appendix C – RS-485 Communication Network ..................................45
Appendix D - Mounting the “EExde approved” version......................47
Appendix E - Long Range IR3 Fire Simulator......................................51
Spectrex Inc. - SharpEye
TM
CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
III
L
IST OF FIGURES
Figure 1: CCTV Model Flame Detector............................................ ... ..... ..... ... ..... ...... .. ....4
Figure 2: Flame Detector Assembly - Outline Drawing ....................................................5
Figure 3: Horizontal and Vertical Fields of View................................................ ..... ..... ... .8
Figure 4: Indication LEDs................................................................................. ...............10
Figure 5: CCTV Screen Setup............................ ..... ...... .. ...... ..... ... ..... ... ..... ..... ... ..... ...... .. ..13
Figure 6: Electrical Interface................. ... ..... ...... .. ...... ..... ..... ... ..... ...... .. ...... ..... ... ..... ..... ..18
Figure 7: Flame Detector Assembly - Schematic Section .............................. ... ...............20
Figure 8: IR3 Detector and Swivel Mount Assembly...................... ..................................26
Figure 9: Swivel Mount Assembly - Outline Drawing......................................................27
Figure 10: Terminal Board........................................... ..... ... ..... ..... ... ..... ...... .. ...... ..... ... ....30
Figure 11: IR3 Flame Detector with cover removed........................................................31
Figure 12: Flame Detector Wiring Diagram........................ ..... ... ..... ..... ... ..... ...... .. ...... ....41
Figure 13: Typical wiring diagram for 4 wire controllers..................................... ... ....... 42
Figure 14: 4-20mA wiring................................. ... ..... ..... ... ..... ...... .. ...... ..... ... ..... ... ..... ..... ..43
Figure 15: RS-485 networking........................ ...... .. ...... .. ...... ..... ... ..... ..... ... ..... ...... .. ...... ....45
Figure 16: Flame Detector Assembly - Wiring Diagram.................................................49
Figure 17: Flame Detector Assembly - Wiring Diagram (“de version”) ........................ 50
Figure 18: Fire Simulator............................... ... ................................... ............................51
Figure 19: IR3 Detector Target Point.................................................... ..........................52
LIST OF TABLES
Table 1: Alarm Response Time Versus Range.................................................................... 6
Table 2: Response Sensitivity Ranges............................................................. ....................7
Table 3: Cone of Vision ......................................................................................................8
Table 4: Immunity To False Alarm Sources....................................................................... 9
Table 5: Welding Immunity Distance ........................................................ .........................9
Table 6: Output Signals Versus Detect or State ................................................................11
Table 7: Built-in Test........................................................................................................ 12
Table 8: Functions setting for model 20/20 CTIN and model CTIP................................ 14
Table 9: Sensitivity range ............................................... ..................................................14
Table 10: Time delay .............................................................................................. ... ....... 15
Table 11: Contact Ratings......................................................... ... .................................. ..19
Table 12: Mounting according to US Version................................ ... ...............................25
Table 13: Mounting according to EU Version ................................................................. 25
Table 14: Maximum DC resistance at 68˚F for copper wire............................................39
Table 15. Wiring length in feet (meter)...................................... ... ....................................39
Spectrex Inc. - SharpEye
TM
CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
IV
Spectrex Inc. - SharpEyeTM CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
1
1. Scope
1.1 Product Overview
The SharpEye CCTV Model Flame Detector (20/20CTIN and 20/20CTIP) is a selfcontained, triple-spectrum, optical flame detector that incorporates a video color
camera. The detector's IR sensors and spectral band pass filters have been
selected to ensure the greatest degree of spectral matching to the radiant energy
emissions of fire and the lowest degree of matching to non-fire stimuli.
The color video camera enables the user to investigate the monitored area, to
identify the fire's source and location, and help select the best response to the
situation (activation of fire suppression means).
Configuration can be made to issue a live color video picture signal at all times, on
request or only when a fire is detected. Therefore, the detector is also useful for
standard CCTV purposes.
The front side of the detector is sealed to keep the electronic and sensor chamber
dry for longer life. The programmable functions are available through a RS 485
port used with a standard PC or by a Pocket PC and software supplied by
Spectrex.
The video signal output of the CCTV Model Flame Detector can be either NTSC or
PAL.
Refer to Manual TM 784050 for instructions to use the HOST software and to
change the required Functions.
Spectrex Inc. - SharpEyeTM CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
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1.2 Document Overview
This manual describes the detector and its features and provides instructions on
the installation, operation and maintenance.
This manual is divided into separate chapters as follows:
Chapter 1. Scope - a general introduction and overview of the product and the
Manual, with a brief description of its content.
Chapter 2.
Technical Description
- the detector’s theory of operation.
Chapter 3. Performance - the detector features and capabilities.
Chapter 4. Operation - the detector’s operation modes, user interface and
indications.
Chapter 5. Technical Specifications - the Detector’s electrical, mechanical and
environmental specifications.
Chapter 6. Installation Instructions, including wiring and mode setting.
Chapter 7. Operating Instructions and power-up procedures.
Chapter 8. Maintenance Instructions and support procedures.
Appendix A. Wiring Selection Tables for electrical wire selection according
to installation configuration.
Appendix B. Typical Wiring Configurations - wiring diagrams for
installation.
Appendix C. RS-485 Communication Network
Appendix D. Mounting the “EExde approved” version
Appendix E.
Long Range IR3 Fire Simulator
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2. Technical Description
•
Detection Range: up to 200 ft (60m) for a 1ft x 1ft (0.3m x 0.3m) fire.
• Live color video image
• Ultra High Immunity to False Alarms (see section. 3.3).
•
Advanced Digital Processing of the Dynamic Characteristics of Fire:
Flickering, Threshold correlation and Ratio.
•
Three Separate IR Channels: Between 3-5 microns.
•
Field Programmable Sensitivity: four ranges.
• Two Response Levels: Warning & Detection.
•
Solar Blind
•
Microprocessor Based: Digital signal processing.
• Built In Test: Manual and Automatic (see section. 4.2.2).
• Electrical Interface:
o Dry contact RELAYS.
o Communication network RS-485.
o
4-20mA output.
•
Certification: Approved by ATEX, UL & GOST R.
2.1 Principles Of Operation
2.1.1 Hydrocarbon fire detection
The triple IR flame detector detects all conceivable types of hydrocarbon fires, i.e.
any fire, which emits CO
2
.
2.1.2 Identifying the CO
2
peak
The hydrocarbon fire is characterized by a typical radiation emission. The CO
2
peak emits intense radiation in the spectral band between 4.2 µ - 4.5 µ and
weaker radiation intensity outside this spectral band.
2.1.3 The limitations of IR-IR flame detectors
CO
2
in the atmosphere attenuates the radiation in this spectral band. (Absorption
and emission of radiation always occur in the same band.) As a result, the greater
the distance between the detector and the fire, the weaker the intensity of the
radiation reaching the detector (the CO
2
attenuation increases). This phenomenon
explains the limitations of the existing IR-IR flame detectors in the market:
•
Detection distance is restricted to 33ft (10m) only.
• Their immunity to false alarm sources is limited.
2.1.4 The advantages of IR3 technology
To overcome these limitations, Spectrex Inc. revised an innovative concept of
utilizing an additional detection channel. Three channels collect more data from
the environment, permitting more accurate analysis and better performance.
Spectrex Inc. - SharpEyeTM CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
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After careful investigation, three channels were selected which, when operating
jointly, provide optimal fire detection characteristics:
Channel 1: 4.2 µ - 4.6 µ
Fire - the CO
2
peak
Channel 2: 4.0 µ - 4.2 µ
Eliminates false alarms from high temperature sources.
Channel 3: 4.8 µ - 5.2 µ
Eliminates false alarms from flickering of background radiation.
Most IR sources, which create misleading IR alarm stimuli, including the sun,
incandescent and halogen lamps, electric arc discharges, electrical heaters, etc.,
do not possess this unique spectral signature of fire. The IR sensors of the
detector respond only to flickering of radiation signals. The signals are compared
to a predetermined threshold. Processing of the results from the three IR channels
is performed by the board microprocessor. The result is a much greater detection
distance and a highly increased ability to distinguish between fire and false alarms.
This sophisticated technology surpasses all other existing flame detection
techniques on the market today.
This unique flame analysis capability (patent pending) has been
incorporated into the Triple-IR fire detector manufactured by Spectrex, Inc.
The result is a unique flame detector, which does not produce false alarms
and provides at the same time detection over greatly increased distances.
Figure 1: CCTV Model Flame Detector
Spectrex Inc. - SharpEyeTM CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
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Figure 2: Flame Detector Assembly - Outline Drawing
2.1.5 Video Picture
The color video camera enables the user to investigate the monitored area, to
identify the fire source and location, to help select the best response to the
situation (activation of fire suppression means). Configuration can be made to
issue a live color video picture signal at all times, on request, or only when a fire is
detected; therefore, the detector is also useful for standard CCTV purposes.
Spectrex Inc. - SharpEyeTM CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
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3. Performance
3.1 Detection Sensitivity
A. Flame
Detection sensitivity is the maximum distance at which the detector will reliably
detect a specific size of fire & typical type of fuel (standard fire).
Standard Fire:
A 1ft x 1ft (0.3m x 0.3m) Gasoline pan fire with max. wind speed of 6.5 ft/sec
(2 m/sec).
Sensitivity Ranges:
The detector has four user selectable sensitivity ranges. For each range there are
two response levels.
1. WARNING (Pre-alarm)
2. ALARM
The detection distance, for the WARNING level, is approximately 10% longer than
the ALARM distance. Alarm response times for a “standard fire” at a specified
range are shown hereunder.
Table 1: Alarm Response Time Versus Range
Sensitivity 1 2 3 4
Range – ft (m) 50 (15) 100 (30) 150 (45) 200 (60)
Response Time (sec) 3 5 8 10
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 temp, air pressure,
humidity, visibility conditions, etc.
Spectrex Inc. - SharpEyeTM CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
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Other fuels
The detector will react to other types of fires as follows:
Pan Fire Size: 1ft x 1ft (0.3m x 0.3m)
Maximum Wind Speed: 6.5 ft/sec (2 m/sec)
Maximum Response Time: 10 sec
Table 2: Response Sensitivity Ranges
Type Of Fuel % Of Max. Distance at
Each Sensitivity Range
Gasoline 100%
N-Heptane 100%
Alcohol 95% 75%
JP4 75%
Kerosene 75%
Diesel Fuel 70%
Methane* 30%
Propane* 30%
* 0.5m plume fire
B. CCTV
The CCTV picture enables the user to identify a 1x1 foot gasoline flame from a
distance of 100 feet (30 meters) offering a “live video” image of the monitored
area.
Spectrex Inc. - SharpEyeTM CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
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3.2 Cone Of Vision
Table 3: Cone of Vision
Flame Detector CCTV
Horizontal 90° 90°
Vertical 90° 65°
Figure 3: Horizontal and Vertical Fields of View
Spectrex Inc. - SharpEyeTM CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
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3.2 False Alarms Prevention
The detector will not provide an alarm or a warning signal as a reaction to the
radiation sources specified below.
Notes:
IAD = Immune at Any Distance.
All sources are chopped from 0 to 20Hz.
Table 4: Immunity To False Alarm Sources
Radiation Source Immunity
Distance ft(m)
Sunlight IAD
Indirect or reflected sunlight IAD
Vehicle headlights (low beam) conforming to MS53023-1 IAD
Vehicle IR lights (low beam) conforming to MS53024-1 IAD
Incandescent frosted glass light, 100 W IAD
Incandescent clear glass light, rough service, 100 W IAD
Fluorescent light with white enamel reflector, standard office or
shop, 40 W (or two 20 W)
IAD
Electric arc [12mm (15/32 in) gap at 4000 V alternating current,
60 Hz]
IAD
Arc welding [4 mm (5/32 in) rod; 240 A] See Table 4
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)
Red dome light conforming to MS51073-1 IAD
Blue-green dome light conforming to M251073-1 IAD
Flashlight (MX 991/U) IAD
Radiation heater, 1500 W IAD
Radiation heater, 1000 W with fan IAD
Quartz lamp (1000 W) 10 (3)
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)
Table 5: Welding Immunity Distance
SW setting Detection Range Immunity Distance
1 50 ft (15m) >13 ft (4m)
2 100 ft (30m) >20 ft (6m)
3 150 ft (45m) >30 ft (9m)
4 200 ft (60m) >40 ft (12m)
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4. Operation
4.1 Visual Indications
Two LED-indications are located in the detector front window:
i. Power LED (Yellow)
Normal - LED ON
BIT failure - LED flashes (4 Hz)
ii. Alarm LED (Red)
Normal - LED OFF
Warning - LED flashes (2 Hz)
ALARM - LED ON
Figure 4: Indication LEDs
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4.2 Output Signals
The detector controls the following outputs:
•
Alarm relay
• Accessory relay
• Fault relay
•
4-20mA current output
•
RS-485 communication
The detector can be in one of the following states.
Normal: The detector is functioning normally.
BIT: The detector performs a Built-In-Test.
Warning: Fire detected - changed to warning – pre-alarm state.
Alarm: Fire detected - changed to fire alarm state.
Latched Alarm
(Optional)
The alarm outputs are latched due to the detection of a fire that
has already been extinguished.
Fault: A fault is detected during a BIT sequence or the power supply is
too low. In each state the detector will activate different outputs
as specified in table 6.
Table 6: Output Signals Versus Detector State
Detector
State
Power
Led
Alarm
Led
Alarm
Relay
Accessory
Relay
Fault
Relay
4-20mA
Output
Normal
On Off Off Off On 5mA
Warning On Flash
2Hz
Off On On 10mA
Alarm (4) On On On On On 15mA
Latch (2) On Off On Off On 5mA
Fault (3) Flash
4Hz
Off Off Off Off 0mA
Note:
1. The video output can be activated continuously or only when a fire is detected,
according to programmable function. See Table 8
2. The Alarm state can be latched, according to programmable function
3. The detector will be in its BIT FAULT state until it has passed a successful BIT.
4. The alarm outputs will be activated as long as the alarm conditions are present
and will stop approximately 5 seconds after the fire is no longer detected.
Spectrex Inc. - SharpEyeTM CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
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4.2.1 Optional latching
The detector includes an optional latched alarm output capability, which operates
according to the programmable function. Upon the detection of a fire, the detection
signal is latched until manually reset (disconnecting the power supply or
performing a manual BIT).
4.2.2 Built-In-Test (BIT)
Successful Manual BIT
will activate the following outputs according to
programmable function.
Table 7: Built-in Test
ALARM BIT AT YES The ALARM relay will be activated for 3 seconds.
The 4-20mA output will provide 15 mA for 3 seconds.
Accessory BIT AT YES The camera will be activated for 3 seconds.
The 4-20mA will provide 10 mA for 3 seconds.
4.2.3 CCTV Output
The video output is a standard port with two options:
a. Detector model No. 20/20 CTIN is a NTSC version
b. Detector model No. 20/20 CTIP is a PAL version
The video output can be activated continuously or only when a fire is detected,
according to programmable function. See Table 8
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4.3 Mode Selection
The setup screen allows viewing and programming of the detector functions.
Figure 5: CCTV Screen Setup
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4.3.1 Function Setup
The user can select the desired mode of operation by means of host software
connected etc.
Table 8: Functions setting for model 20/20 CTIN and model CTIP
# Name YES NO
1 ALARM LATCH Alarm latching enable Alarm latching disable
(default)
2 ACCESSORY RELAY
(camera operation)
Camera activated at
warning level
Camera activated at
detection level (together
with alarm relay) (default)
3 AUTOMATIC BIT Automatic & manual bit
(default)
Manual bit only
4 ALARM BIT Successful manual bit
activates the Alarm
Relay for approximately
3 seconds
The 4-20mA will initiate
15mA (default)
Successful manual bit
does not activate the Alarm
Relay
5 VIDEO OUTPUT Successful manual bit
activates the the camera
for approximately 3
seconds
The 4-20mA will initiate
10mA (default)
Successful manual bit
does not activates the
camera
6 EOL Camera always active
(default)
Camera operates in
accordance with other
settings
4.3.2 Sensitivity Ranges
The detector offers four (4) sensitivity settings. The settings refer to the gasoline
1x1foot fire, from low sensitivity of 50 ft (15m) to 200 ft (60m). For other types of
fuel sensitivity, refer to table 2.
Table 9: Sensitivity range
IR3 Flame Detector Sensitivity
15 50 ft (15 m)
30 100 ft (30 m) (defulat)
45 150 ft (45 m)
60 200 ft (60 m)
Spectrex Inc. - SharpEyeTM CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
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4.3.3 Alarm Delay
The detector is equipped with an Alarm Delay option, which provides
programmable time delays of 0 to 30 seconds with eight (8) fixed settings at: 0,
anti-flare, 3, 5, 10, 15, 20, and 30 seconds.
When an Alarm (Detection) level condition is encountered, the detector delays the
execution of the Alarm output’s relay by the specified period of time. The detector
will then evaluate the condition for 3 seconds. If the Alarm level is still present, the
Alarm outputs will be activated. If this condition no longer exists, the detector will
return to its standby state. The Alarm delay option will affect the output relay and
the 4-20mA. The LEDS will indicate warning level during the delay time only if the
fire condition exists.
Anti Flare
Anti Flare mode is selected to prevent false alarm in locations where fast flares
may be present. The Time delay for fire alarm in this mode is from 2.5 to 15
seconds (mostly less than 10 seconds).
Table 10: Time delay
Delay (sec.)
0
A* -- anti-flare
3
5
10
15
20
30
* Default
4.3.4 Addresses Setup
Refer to TM 784050 for instructions for defining the addresses of the detectors.
The detector provides up to 247 addresses that can be used with RS-485
communication link.
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4.4 Built In Test
A. General
The detectors’ Built In Test (BIT) checks the following:
• Electronics circuitry
•
Sensors
• Window cleanliness
The detector can be set to perform the BIT automatically and manually or
manually only.
B. Principles
If the result of a BIT is the same as the current status of the detector (NORMAL or
BIT FAULT), the detector's status is unchanged. If the result of a BIT differs from
the current status of the detector, the detectors’ status is changed (From NORMAL
to BIT FAULT or from BIT FAULT to NORMAL).
Note
: In BIT FAULT status, the detector can continue to detect a fire.
C. Manual BIT only
The BIT is initiated manually by momentarily connecting Terminal No. 3 with
Terminal No. 2. A successful manual BIT activates the following:
• FAULT relay is closed.
•
ALARM relay is activated for 3 sec (only when Function Alarm BIT at YES)
•
4-20 mA OUTPUT current will be 15mA only when Function Alarm BIT at
YES
Unsuccessful BIT activates the following:
• FAULT relay is released.
• 4-20 mA output indicates BIT FAULT condition (2 mA).
•
POWER LED (yellow) flashes (4 Hz).
Note:
During a MANUAL BIT, if function ‘Alarm BIT’ is in ‘YES’ position, the ALARM
relay will be activated. Therefore, automatic extinguishing systems or any external
devices that should not be activated during BIT should be disconnected.
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D. Automatic & Manual BIT
Manual Bit
Functions as described in paragraph 4.4.c. In the case of an unsuccessful BIT all
outputs will function as described in paragraph 4.4.c, but the BIT will be
automatically executed every 1 minute. This mode of operation will continue until
successful BIT has been encountered. As a result, the detector will resume its
normal operation.
Automatic BIT
The detector automatically performs a BIT every 15 minutes.
A successful BIT sequence does not activate any indication:
The FAULT relay is CLOSED (NORMAL).
The POWER LED is ON (NORMAL).
An unsuccessful BIT sequence activates the following:
The FAULT relay is opened
4-20mA output indicate BIT FAULT (2 mA)
The POWER LED (yellow) flashes (4 Hz)
BIT procedure will be performed every 1 minute
Spectrex Inc. - SharpEyeTM CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
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5.Technical Specifications
5.1 Electrical Specifications
A. Operating Voltage: 18-32 VDC
B.
Power Consumption
:
Max. 150mA in Stand-by
Max. 200mA in Alarm
C. Electric input protection: The input circuit is protected against voltage-
reversed polarity, voltage transients, surges and spikes according to MILSTD-1275A.
D. Electrical Interface:
Figure 6: Electrical Interface
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E. Electrical outputs
•
Dry Contact Relays:
Table 11: Contact Ratings
Relay
Name
Type Normal
position
Maximum Ratings
Alarm SPDT N.O. N.C. 2A at 30VDC or 0.5A at 250 VAC
Fault * SPST N.C. 5A at 30VDC or 250 VAC
* The FAULT relay will be normally energised closed during Normal operation of the
detector. The contact will open at ‘Fault’ condition or low voltage.
• 4-20mA Current Output:
Terminals 11 and 12:
FAULT 0 + 0.5mA
BIT FAULT 2mA±10%
NORMAL 5mA±10%
WARNING 10mA±5%
ALARM 15mA±5%
• Communication Network:
The detector is equipped with an RS-485 communication link that can
be used in installations with computerized controllers.
The communicator protocol is compatible with the Modbus
communicator protocol.
•
This protocol is a standard and widely used.
• It enables continuous communication between a single standard
Modbus controller (Master device) and a serial Network of up to 247
detectors.
•
It enables connection between different types of Spectrex detectors
or other Modbus devices to the same Network.
• CCTV Output
The video output is a standard port with two options:
• Detector model No. 20/20 CTIN is a NTSC version
• Detector model No. 20/20 CTIP is a PAL version
The output can be connected to standard video accessories such as a
switching box.
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Figure 7: Flame Detector Assembly - Schematic Section
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5.2 Mechanical Specifications
A. Enclosure
Aluminum: Chromate coating and Epoxy enamel finish
or
Stainless Steel 316: Electrochemical passivated coating
B. Explosion proof
Ex II 2G SIRA 00ATEX 1163, 1164
EExd IIB + H
2
T5 Temp. -40°F (-40 °C) to 160°F (70 °C)
Option: -40°F (-40 °C) to 185°F (85 °C)
Per EN 50014 & EN 50018
ATEX
EExde IIB + H
2
T5 Temp. -40°F (-40 °C) to 160°F (70 °C)
Per EN 50014, 50018 & 50019
(see Appendix D)
UL Class I, Groups C and D
GOST R 1ExdIIBT5/H
2
FM
(Design to Meet)
Class I Div. 1 Groups B, C and D;
Class II Div. 1 Groups E, F and G.
C. Water and dust tight
NEMA 250 type 6p.
IP 66 and IP 67 per EN 60529
D. Electronic Modules
Conformable coating.
E. Electrical connection (two positions)
Standard 3/4"-14NPT conduit
Optional M25 x 1.5 (ISO).
F. Dimensions
Base: 5.2 x 5.2 in (132 cm x 132 cm)
Height: 4.7 in (120 cm)
G. Weight
8.1 lbs. (3.7 Kg) – Aluminum Alloy
14.3 lbs. (6.5 Kg) – ST.ST 316
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5.3 Environmental Specifications
A. High Temperature
Design to meet MIL-STD-810C, method 501.1 procedure II
Operating temperature: +160 °F (+70 °C)
Optional operating temperature: +185 °F (+85 °C)
Storage temperature: +185 °F (+85 °C)
B. Low Temperature
Design to meet MIL-STD-810C, method 502.1, procedure I
Operating temperature:
-40 °F (-40 °C)
Storage temperature: -65 °F (-55 °C)
C. Humidity
Design to meet MIL-STD-810C, method 507.1, procedure IV
Relative humidity of up to 95% for the operational temperature range.
D. Salt Fog
Design to meet MIL-STD-810C, method 509.1, procedure I
Exposure to a 5% Salt Solution Fog for 48 hours.
E. Dust
Design 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.
F. Vibration
Design 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.
G. Mechanical Shock
Design to meet MIL-STD-810C, method 516.2, procedure I
Mechanical Shock of 30g half-sin wave, for 11 msec.
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6. Installation Instructions
6.1 Scope
The "Spectrex" Model 20/20CTIN-CTIP is a self-contained Optical Flame Detector,
designed to operate as a stand-alone unit directly connected to alarm systems or
automatic fire extinguishing systems. The detector can form part of a more
complex system where many detectors and other devices are integrated through a
common control unit. This chapter 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.
6.2 General Considerations
Very Important
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 slight angle to prevent
the accumulation of dust and dirt. Do not start an installation unless all
conceivable considerations regarding detector location have been taken into
account.
To ensure optimal performance and an efficient installation, the following
guidelines should be considered:
A. Sensitivity
To determine the level of sensitivity, the following issues should be
considered:
• Size of fire at determined distance to be detected.
•
Type of flammable materials.
B. Spacing and Location
The number of detectors and their locations in the protected area are
affected by:
•
Size of the protected area
• Sensitivity of the detectors
• Obstructed lines of sight
•
Cone of view of the detectors
C. Environment
• Dust, snow or rain can reduce the detectors sensitivity and require
more maintenance activities.
• The presence of high intensity flickering of IR sources may affect
sensitivity.
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6.3 Preparations for Installation
Installation should comply with NFPA 72E, as applicable to flame detectors as
required. The detectors can be installed with the use of general-purpose common
tools and equipment.
1 Verify the appropriate Purchase Order. Record the Part No. and the Serial No.
of the detectors and the installation date in an appropriate Log-book.
2 Open the container package prior to detector installation and visually inspect
the detector.
3 Verify that all components required for the detector installation are readily
available before commencing the installation. In case that the installation is
not completed in a single session, secure and seal detectors and conduits.
4 For wiring, use color-coded conductors or suitable wire markings or labels.
12 to 20 AWG 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 Appendix A).
6.4 Conduit Installation
1 To avoid water condensation water in the detector, it should be installed with
the conduits placed downward, and should include drain holes.
2 When using the optional swivel mount, use flexible conduits for the last portion
connecting to the detector.
3 For installations in atmospheres as defined in Group B of the NFPA 72E,
conduits inlets should be sealed.
4 When pulling the cables through the conduits, ensure that they are not tangled
or stressed. Extend the cables about 12 in. (30 cm.) beyond the detector
location to accommodate wiring after installation.
5 After the conductor cables have been pulled through the conduits, perform a
continuity test.
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6.5 Detector Mounting
The detector may be mounted on a simple fabricated bracket, or preferably the
optional Swivel Mount, Model 20/20-003. The Swivel Mount enables the detector
to be rotated up to 40 degrees in all directions.
6.5.1 Swivel Mount Kit:
Table 12: Mounting according to US Version
Item Qty. Type/Model Location
Swivel Mount 1 20/20-003
1/4"-20UNC Screw 4 1/4" –20UNC Detector - Holding plate
1/4" Spring Washer 4 1/4" Detector - Holding plate
Table 13: Mounting according to EU Version
Item Qty. Type/Model Location
Swivel Mount 1 20/20-003-1
Screw 4 M6 X 1P Detector - Holding plate
Spring Washer 4 M6 Detector - Holding plate
6.5.2 Swivel installation (Figs. No. 8 and 9):
1 Place the swivel mount (item 6) in its designated location and secure it with
four (4) M6 or 1/4" screws (item 11) (recommended), placed 3.0 in. (76.2 mm.)
apart on the swivel mount plate (item 10).
Note: Skip this step if the Swivel Mount is already installed. Also detector
removal for maintenance purpose does not require Swivel Mount removal.
2 Unpack the detector.
3 Place the detector, with its conduit inlets / electrical entries pointing down, on
the holding plate of the swivel mount (item 7). Secure the detector by four (4)
1/4"-20UNC (or M6) screws with 1/4" (or M6) spring washers from the Swivel
Mount Kit (using the holes (item 5)). Use 3/16 Hex Key for 1/4" screws and
No. 5 for M6 screws.
4 Tighten the three locking 3/8"-24UNF screws (item 8) of the swivel mount ring
until the friction in the ball joint holds the detector in its position, maintaining
the ability to be moved by hand-applied force (Use 3/16" HEX KEY).
5 Point the detector towards the protected area and make certain that the view
of the area. Secure the detector in that position by tightening the locking
screws (item 8) of the swivel mount ring.
The detector is now correctly located and aligned and ready for connecting to the
system.
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Figure 8: IR3 Detector and Swivel Mount Assembly
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Description
1 Protective Set
Screws
2 Ground Terminal
(for ATEX) or
Ground Thread
(for FM)
3 Back Cover
4 Housing
5 Swivel Mount
Screw Hole
6 Swivel Mount
7 Holding Plate
8 Locking Screws
9 Detector
Mounting
Screws
10 Swivel Mount
Plate
11 Swivel mounting
screws
Figure 9: Swivel Mount Assembly - Outline Drawing
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6.6 Wiring (Refer to Fig. 11)
1 Disconnect power.
2 Remove the four (4) protective set-screws from detector front. (Fig. 8 Item 1)
3 Release the four (4) socket-head screws that secure the detector housing
(Item 1) to its back cover (Item 4) Using HEX KEY No. 5. Hold the housing
(Item 1) during the removal of the screws. With the screws removed, pull the
detector housing (Item 1) from its cover (Item 4). The Terminal Board inside
the detector cover is now revealed.
4 Remove the protective plug mounted on the detector conduit inlet / electrical
entry, pull the wires through the detector cover (Item 4) and secure them firmly
to the cover using the cable-clamp (Item 2) attached to it. Use a 3/4"-14NPT
or M25x1.5 explosion-proof conduit /cable gland connection to assemble the
conduit / cable to the detector.
5 Connect the wires to the required terminals (Item 3) according to the wiring
diagram. See paragraph 6.7.
6 Connect the grounding wire to the ground screw outside the detector cover
(Fig. 8 item 2).
The detector must be well grounded to Earth Ground for proper
operation.
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 board to prevent them from interfering while closing the
detectors’ housing.
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6.7 Terminal wiring (See Fig. No.10 and No.11.)
The detector contains a Terminal Board consisting of two (2) terminal blocks (Item
4). The left terminal block is labeled 1 to 7, the right terminal block is labeled 8 to
14.
The following describes the function of each electrical terminal of the
detector:
• Power Supply (Terminal Numbers 1, 2):
Input power - Terminal No. 1.
The RETURN - Terminal No. 2.
• Manual Bit Activation (Terminal No. 3):
Terminal No. 3 is used for Manual BIT activation.
Manual BIT is initiated by a momentary connection of Terminal No. 3 to the
power supply Return line.
• Fault Relay (Terminal Numbers 4, 5):
The Fault output is N.O. SPST relay at Terminals No. 4 and 5. The contacts
are energised closed when the detector is in its normal operational condition.
•
Alarm Relay (Terminal Numbers 6, 7, 8):
The Alarm output is a change over contact relay (SPDT).
Terminal No. 6 - N.O. relay contact.
Terminal No. 7 - COMMON relay contact.
Terminal No. 8 - N.C. relay contact.
•
CCTV
(Terminal Numbers 9, 10):
The CCTV output is a standard video output available at PAL or NTSC
according to Model No.20/20 CTSN for NTSC and 20/20CTIP for PAL.
Terminal No. 9 - video signal (-)
Terminal No. 10 - video signal (+)
Note
To protect the dry contacts from voltage surges when connected to reactive
loads (electric motors, sirens, etc.), connect an appropriate varistor over these
contacts.
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•
4-20mA Output
(Terminal Numbers 11, 12):
Terminal Numbers 11 and 12 are used for analog, 4-20mA current output as
specified in paragraph 4.e
Terminal No. 11 - output Terminal.
Terminal No. 12 - input Terminal (see appendix B for more details)
• RS-485 (Terminal Numbers 13, 14):
Terminal Numbers 13 and 14 are used for communication network as specified
in appendix C.
Terminal No. 13 - positive (+) lead.
Terminal No. 14 - negative (-) lead.
Figure 10: Terminal Board
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Figure 11: IR3 Flame Detector with cover removed
Description
1 Housing
2 Securing Cable
3 Terminal Board
4 Back Cover
5 Inlet Conduit
6 Earth Terminal
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6.8 Operation Mode
When wiring is completed the operational mode can be selected.
Mode selection is achieved through RS-485 using a PC with Spectrex Host
software. Refer to TM784050.
Programmable Function:
Modes of operation are programmable with a PC or Handheld unit according to the
selection table in Paragraph 4.3.1 and Refer to TM 784050. Refer to here in 4.3.1
etc.
Address:
The detector has the capability of acting as an addressable device.
The detector provides 247 addresses, which can be used by the RS-485
communications link as described in paragraph 4.3.4 and Refer to TM 784050.
Alarm Delay:
An Alarm Delay may be required for certain applications. The detector has an
Alarm Delay that permits time delays from 0, anti-flare, 3, 5, 10, 15, 20 and 30
seconds respectively. The delay can be defined by the RS-485. See paragraph
4.3.3 and refer to TM 784050.
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7. Operating Instructions
7.1 Scope
The following instructions are designed to obtain optimal performance from the
detector over its life cycle.
7.2 Power-Up
1 Apply power and wait approximately 60 seconds for the automatic self-test of
the detector.
Note: Applying power initiates the following sequence:
•
POWER LED flashes
•
BIT is executed, if successful then:
o POWER LED turns ON continuous
o
FAULT relay contacts close
2 Wiring Inspection: If a short-circuit or line discontinuity exists, indications will
appear on the control unit display panel. Review your wiring.
3 The detector goes into its FAULT state when supply voltage drops under
16.5V. The detector status goes back to NORMAL, when the supply voltage is
above 17.5V.
4 Detector Inspection: Visually inspects the viewing window of the detector. It
should be clean and clear. The POWER LED should be ON and the ALARM
LED should be OFF. The ALARM should be OFF and the FAULT relay should
be ON. The 4-20mA Output should be 5mA.
5 If any of the outputs or indications is different from the description in step 4,
see paragraph 8.6.1 for troubleshooting.
The Flame Detector is now ready for Functional Testing.
7.3 Reset
If the optional alarm latching mode has been selected, RESET of a detector, when
in its ALARM state, can be activated by disconnecting power (terminal No. 1 or
terminal No. 2), or initiating a manual BIT.
7.4 Functional testing
Following is a test procedure for proper functioning of the detector. The detector
can be tested using the Manual Built-in-Test (BIT) or the Spectrex IR3 Fire
Simulator - 20/20-310
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7.4.1 Manual BIT Test
Important Note!
If the function setup “Alarm BIT” is in YES, then the Alarm and 4-20mA Output will
be activated during a manual BIT, therefore, automatic extinguishing systems or
any external devices that may be activated during BIT must be disconnected.
1 Verify that the detector is operating properly.
2 Initiate manual BIT. After a few seconds the following occurs:
• Alarm Relay will be activated and the 4-20mA output turns to 15mA for
3 seconds (only if “Alarm BIT” at YES).
•
The CCTV will be activated and the 4-20mA output turns to 10mA for 3
seconds (only if “Accessory BIT” at YES).
•
The 2 LEDs should be ON.
• Fault Relay will stay active during the test.
7.4.2 Testing with fire simulator
This test simulates an exposure of the detector to a real fire condition. The
detector is exposed to the radiation in the specified detection level. As a result the
detector must generate a Fire Alarm signal.
Important Note!
If the detector is exposed to a fire simulator, the Alarm Relay and 4-20mA will be
activated during the simulation. Therefore, automatic extinguishing systems or
any external devices, which may be activated during this process, must be
disconnected.
1 Apply power to the system and wait up to 60 seconds for turning of the
detector to normal state. Power led turns on. If the detector is on, skip this
step.
2 Aim the Spectrex Fire Simulator Model 20/20-310 at the target point of the
detector (see Fig. 22), in a way that the radiation emitted by it is facing
directly towards the detector. (See appendix E)
3 Press the operation button once. After a few seconds the Alarm LED should
be ON for a few seconds. The 4-20mA output should turn to 15mA for a few
seconds and then return to 5mA. The Alarm Relay should also turn on during
this period. The CCTV will operate in parallel to the Alarm Relay if “Accessory
BIT” at YES.
This completes the installation procedure. The detector and system are now ready
for operation.
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7.5 Safety Precautions
After Powering-up, the detector requires hardly any attention in order to function
properly, but the following should be noted:
1 Follow the instructions in the manual and refer to the drawings and
specifications issued by the manufacturer.
2 Do not expose the detector to radiation of any kind unless required for testing
purposes.
3 Do not open the detector housing, while power is supplied.
4 Do not touch internal parts. Interference with internal circuits may impair
detector performance and will invalidate manufacturer's Warranty.
5 Disconnect external devices, such as automatic extinguishing systems before
carrying out any maintenance.
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8. Maintenance Instructions
8.1 Scope
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 the manufacturer or its authorized
distributor for assistance.
8.2 Maintenance Instrumentation and Personnel
The detectors’ maintenance requires ordinary tools and qualified personnel, who
should be familiar with local codes and practices.
8.3 Preventive Maintenance Procedures
The detector must be kept as clean as possible. The viewing window and the
reflector of the 20/20CTIP and 20/20CTIN Flame Detector Models must be
cleaned on a periodic basis. The frequency of cleaning operations depends upon
the environmental conditions and specific applications. The fire detection system
designer will give his recommendations. Use of the optional AIR SHIELD Model
20/20-920 is highly recommended and will help to keep the window clean and
prevent dirt from accumulating on the window.
1 Disconnect power to the detector before proceeding with any maintenance
including lens cleaning.
2 To clean the detector viewing window and reflector use water and detergent,
rinse with clean water.
3 Where dust, dirt or moisture accumulates on the window, first clean with a soft
optical cloth and detergent, then rinse with clean water.
8.4 Periodic Maintenance Procedures
In addition to preventive cleaning and maintenance, the detector should be
functionally tested every six months. This test should also be carried out for any
reason the detector has been opened.
8.4.1 Power-Up Procedure
Perform Power-Up procedure every time power is restored to the system. Follow
the instructions in paragraph 7.2.
8.4.2 Functional Test Procedure
Perform a functional test of the detector as described in paragraph 7.4.
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8.5 Maintenance Records
It is recommended to record maintenance operations performed on a detector in a
system Log-book. The record should include information, which identifies the unit,
the installation date, contractor, and entries for every maintenance operation
performed including the description of the operation, date and personnel ID.
If a unit is sent to the manufacturer or distributor for service, a copy of the
Maintenance records should accompany it.
8.6 Troubleshooting
8.6.1 Fault Indication
1 Check power supply for correct voltage, polarity and wiring.
2 Check detector window and reflector for cleanness. If necessary clean the
window as indicated in paragraph 8.3 and repeat the test.
3 Disconnect the power supply to the system and check the detector's internal
wiring.
4 Reconnect power supply and wait approximately 60 seconds. Repeat the test.
If the indication LED is still flashing, the unit requires service.
8.6.2 False Alarm or Warning Indication
1 Disconnect the power supply from the system and check internal wiring.
2 Reconnect power supply and wait approximately 60 seconds. If indication
remains, the unit requires service.
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Appendix A - Wire Selection Tables
General Instructions For Electrical Wiring
1. Refer to Table 14 to determine the required wire gauge for general wiring,
such as relay wiring. Calculate the permitted voltage fall with respect to
loads current, wire gauge and length of wires.
2. Refer to Table 15 to select wire gauge for power supply wires. DO NOT
connect any circuit or load to detectors’ supply inputs.
Table 14: Maximum DC resistance at 68˚F for copper wire
AWG # mm2 Ohm per 100 ft. Ohm/100
meter
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
A. Select "Number of detectors" connected in one circuit.
B. Select "wiring length" per your installation requirements.
C. Refer to "power supply range" for voltage extreme applied.
Table 15. Wiring length in feet (meter)
No. 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
Feet 164 328 492 656 820
(meter) (50) (100) (150) (200) (250)
Max. Length from Power Supply to Last
Detector
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CCTV Wire Type
The wire for the video picture must be Twisted Pair Wire.
Network Wiring UTP
Wire Gauge 24 AWG or thicker
Category Type 2, 3, 4, 5 or better
Impedance 100±20 ohms
DC Loop Resistance 52 ohms per 1,000ft/300m
Differential Capacitance 19pF/ft max
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Appendix B – Typical Wiring Configurations
Figure 12: Flame Detector Wiring Diagram
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Figure 13: Typical wiring diagram for 4 wire controllers
Notes: For EOL Resistors Values See Controller Manual
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Figure 14: 4-20mA wiring
Notes
:
The detectors are factory set to isolated 4-20mA ‘sink’ version.
To work at non-isolated 4-20mA version (source), connect Terminal 12 to Terminal
1. The 4-20mA meter is connected between Terminal 11 and Terminal 2.
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CCTV Wire Type
The wire for the video picture must be Twisted Pair Wire.
Network Wiring UTP
Wire Gauge 24 AWG or thicker
Category Type 2, 3, 4, 5 or better
Impedance 100±200 ohms
DC Loop Resistance 52 ohms per 1,000ft (300m)
Differential Capacitance 19pF/ft max
The Twist Pair must be connected to a PASSIVE or ACTIVE receiver depending
on the length cable from the CCTV to the receiver.
0 - 1000 ft (300m) Require PASSIVE receiver
660 - 3300 ft (200m - 1000m) Require ACTIVE receiver
The connection from the receiver should be made by coax cable connected to the
monitor or through a switching box when connecting two (2) or more CCTVs to the
same monitor.
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Appendix C – RS-485 Communication Network
Using the RS-485 network capability of the IR3 detector and additional software it
is possible to connect up to 32 detectors in an addressable system with 4 wires
only (2 for power & 2 for communication). Using repeaters, the number of
detectors can be much larger (32 detectors for each repeater) up to 247 on the
same 4 wires. When using the RS-485 network it is possible to read each detector
status (FAULT, WARNING, ALARM) and to initiate a BIT to each detector
individually.
Fore more details, consult the factory.
Figure 15: RS-485 networking
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Appendix D - Mounting the “EExde approved”
version
The EExde approved version provides an additional EExe terminal box attached
below the EExd detector and therefore allows easier access for wiring in difficult
environments and hazardous areas (see fig. 18). The unit is prewired to the
terminals in the additional EExe terminal section ready for field wiring connections
1. Detector Mounting
The detector may be mounted on a simple fabricated bracket, or preferably the
optional Swivel Mount, Model 20/20-003. The Swivel Mount enables the detector
to be rotated up to 40 degrees in all directions.
1.1 Swivel Mount Kit - Use the kit from the paragraph 6.5.1
1.2 Swivel installation
1 Refer to Fig.8 and Fig 9. Place the swivel mount (item 6) in its designated
location and secure it with four (4) M6 or 1/4" screws (item 11)
(recommended), placed 3.0 in. (76.2 mm.) apart on the swivel mount plate
(item 10).
Note: Skip this step if the Swivel Mount is already installed. Also detector
removal for maintenance purpose does not require Swivel Mount removal.
2 Unpack the detector.
3 Place the detector, with its conduit inlets / electrical entries pointing down, on
the holding plate of the swivel mount (Fig. 8 item 7). Secure the detector by
four (4) M6 screws with M6 spring washers from the Swivel Mount Kit using
the holes (Fig. 9 item 5). You can use the thread on the modified cover (Fig.
18 item 1) marked either triangle symbol (∆) or square symbol (ٱ). Use No. 5
Hex Key for M6 screws.
4 Tighten the three locking 3/8"-24UNF screws (Fig. 9 item 8) of the swivel
mount ring until the friction in the ball joint holds the detector in its position.
Yet, still permits it to be moved by hand-applied force (Use 3/16" HEX KEY).
5 Point the detector towards the protected area and make certain that the view
of the area. Secure the detector in that position by tightening the locking
screws (Fig.9 item 8) of the swivel mount ring.
The detector is now correctly located and aligned and ready for connecting to the
system.
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2. W
IRING (R
EFER TO FIG
. 18.)
1 Disconnect power.
2 Release the four (4) slotted-head screws (item 3) that secure the chamber
cover (Item 2). The chamber is now revealed.
3 Remove the protective plug mounted on the detector conduit inlet/ electrical
entry, pull the wires through the detector chamber (Item 7). Use a 3/4"14NPT or M25x1.5 explosion-proof conduit / cable gland connection to
assemble the conduit / cable to the detector.
4 Connect the wires to the required terminals (Item 4) according to the wiring
diagram. See paragraph 2.1 and figures no. 19 and no. 20.
5 Connect the grounding wire to the ground screw outside the detector cover
(Item 5).
The detector must be well grounded to Earth Ground for proper
operation.
6 Verify the wiring. Improper wiring may damage the detector.
7 Check the wires for secure mechanical connection and press them neatly
against the terminal to prevent them from interfering while closing the cover
(Item 2).
8 Place and secure the cover chamber (Item 2) using four (4) slotted-head
screws (Item 3).
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Figure 16: Flame Detector Assembly - Wiring Diagram
Description
1. Modified Back Cover 5. Ground Terminal
2. EExe Chamber Cover 6. Mounting Thread
3. Slotted Screw 7. EExe Chamber
4. Terminal Block 8. Conduit Inlet
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2.1 Terminal Wiring
The terminal block is labeled 1 to 6. (See Fig. No.18)
The following describes the function of each electrical terminal of the detector:
Power Supply (Terminal Numbers 1, 2):
Input power - Terminal No. 1.
RETURN - Terminal No. 2.
CCTV (Terminal Numbers 3, 4):
The CCTV output is a standard video output available at PAL or NTSC according
to Model No. 20/20 CTSN for NTSC and 20/20 CTIP for PAL.
Terminal No. 3 - video signal (-)
Terminal No. 4 - video signal (+)
4-20 mA Output (Terminal Numbers 5, 6):
Terminal Numbers 5 and 6 are used for analog, 4-20mA current output as
specified in paragraph 5.e
Terminal No. 5 - output Terminal.
Terminal No. 6 - input Terminal (see appendix B for more details)
Note
• For other ANALOG OUTPUTS consult the factory.
• The detector contains an EExe chamber consisting of a terminal block (Item 4).
Figure 17: Flame Detector Assembly - Wiring Diagram (“de version”)
Spectrex Inc. - SharpEyeTM CCTV Model Flame Detector Manual – TM 788100, Rev. A January 2005
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Appendix E - Long Range IR3 Fire Simulator
Figure 18: Fire Simulator
Product Description
The SharpEye IR3 Long Range Fire simulator 20/20-310 is designed specifically
for use with the IR3 flame detectors. The Fire Simulator emits IR radiation in a
unique sequential pattern corresponding and recognizable by the IR3 detector as
fire. This allows the IR3 detectors to be tested under real fire conditions without
the associated risks of an open flame. There is a specially designed beam
collimator model number 20/20-190 used for extended range.
Unpacking
In addition to the delivery form, there should be the following contents:
•
Fire Simulator with built in batteries
• Battery charger
• Optional Beam Collimator
•
Storage Case
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 will simulate a real fire condition and may activate the
extinguishing system or other alarms. If this is not desired, disconnect them
before the test and reconnect after the simulation.
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Figure 19: IR3 Detector Target Point
Follow these instructions to simulate a fire:
1. Aim the Fire Simulator towards the detector’s “Target Point”.
2. For testing keep a distance of at least 20 inches (50cm) from the detector.
3. Press the operation button once. Fire simulation will last for 20 seconds.
The detector will send an alarm signal (solid red LED).
4. For another fire simulation a 20 second time lapse is required between
tests.
5. Make sure the optical window is clean and keep the Fire Simulator in a safe
place when not in use.
Battery Charging
The Fire Simulator uses NiCad batteries as a rechargeable power source. When
the batteries are fully charged it will operate for at least 60 uses without
recharging. An internal buzzer is sounded when the voltage from the batteries is
lower than the required operational level.
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.
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Specifications
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 NiCad Batteries
Current: 2.5A Avg.
Charge: 400mA for 14 Hours
Environmental
Temperature Range: -4º F (-20º C) to 122º F (50º C)
Vibration Protection: 1g (10-50hz)
Water and Dust: IP 67 per EN 60529
Physical
Dimension: 11.5 x 10.1 x 3.9 in (292 x 258 x 100 mm)
Weight: 7.5 lb. (3.4 Kg)
Range*
Sensitivity Range Standard Extended Range
(with Collimator)
1 (Low) 50 ft (15 m) 3.8 ft (1.2 m) 7 ft (2.2 m)
2 100 ft (30 m) 7 ft (2.2 m) 14.5 ft (4.5 m)
3 150 ft (45 m) 10 ft (3.2 m) 22 ft (7.0 m)
4 (High) 200 ft (60 m) 14.5 ft (4.5 m) 29 ft (9.0 m)
* The minimum distance from the detector is 20 inches (50cm)
* At extreme temperatures - 15% Max. Reduction in range
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Technical Support
For all technical assistance or support, contact:
218 Little Falls Road
Cedar Grove, NJ 07009, USA
Tel: +1 (973) 239 8398
Fax: +1 (973) 239 7614
Email: spectrex@spectrex.net
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: +1 (832) 321 5229
Email: jay@spectrex.net
Europe
Mr. Ian Buchanan, Regional Manager
6 Applecross Road
Glasgow G66 3TJ
United Kingdom
Phone: +44 (0) 141 578 0693
Email: ian@spectrex.net
Far East
Mr. Deryk Walker, Regional Sales Manager
59 Fen Ji Hu, Danshui
Taipei County 25163
Taiwan (ROC)
Phone: +886 2 8626 2893
Mobile: +886 926 664 232
Email: deryk@spectrex.net
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