Micropack FDS301 User manual

FDS301
VISUAL FLAME
DETECTOR
SAFETY & TECHNICAL
MANUAL
Ref: 2200.5009
micro
p
ack.co.uk


HELP US TO HELP YOU
Every effort has been made to ensure the accuracy in the contents of our documents; however,
Micropack (Engineering) Ltd can assume no responsibility for any errors or omissions in our
documents or their consequences.
Micropack (Engineering) Ltd would greatly appreciate being informed of any errors or omissions
that may be found in our documents. To this end we include a form, given in Appendix B, for you
to photocopy, complete and return to us so that we take the appropriate action. Thank you.
CONTENTS
TABLE
OF
This document is strictly private and confidential, reproduction without Micropack approval is prohibited. © Micropack Engineering Ltd, 2016
1
Introduction 4
1.1 Features 4
1.2 Visual Flame Detection 4
2
Safety Instructions 5
2.1 Warnings 5
2.2 Cautions 5
2.3 VDS EN54 part 10 Limitations of use 6
2.4 Important Safety Notices 6
3
Installation 8
3.1 Detector Enclosure 8
3.2 Mounting & Orientation 9
3.3 Wiring Procedure 11
3.3.1 4-20mA Output 12
3.3.2 Relay Output 14
3.4 Installation Checklist 15
3.4.1 Mechanical 15
3.4.2 Electrical 16
4
System Design Guidelines 17
4.1 Earthing & Screening Requirements 17
4.2 Power Supply 17
4.3 RS485 Communications 17
4.4 HART Protocol 18
4.5 Cable Selection 18
4.5.1 DC Power 19
4.5.2 Video 20
4.5.3 RS485 Communication 20
FDS301 Flame Detector FDS301 Safety and Technical Manual
2
Ref: 2200.5009 Rev: 2.3 ECN 4434

micro
p
ack.co.uk
FDS301 Flame Detector FDS301 Safety and Technical Manual
3
Ref: 2200.5009 Rev: 2.3 ECN 4434
5 Application Guidelines 21
5.1 Positioning Requirements 21
5.2 Detection Coverage 22
5.3 Exposure to Flare Radiation 22
5.4 Optical Contamination 22
5.5 Enclosed Areas 23
5.6 Detector Sensitivity 23
6 Maintenance and Commissioning 24
6.1 Procedure 24
6.2 Functional Testing 26
7 Fault Finding 27
7.1 Removal of the Electronics 27
7.2 Replacement of the Electronics 27
7.3 Diagnostics 27
7.4 LED Indication 28
7.5 Power Fault 29
7.6 Live Video Images 29
8 Technical Specification 30
8.1 Electrical Specification 30
8.2 Mechanical Specification 31
8.3 Environmental Specification 31
8.4 Certification and Approvals 32
8.5 Operating Specification 32
Appendix A
Acronyms, Terms & Abbreviations 33
Appendix B
Help us to help you 34
Appendix C
IEC 61508 Failure Rate Data 35
Appendix D
FDS301 Field of View 36

1
Introduction
The Micropack Colour FDS301 is a combined flame detection and video surveillance
system utilising unique real time video based flame detection technology developed
by Micropack. The flame detection algorithms are capable of discriminating between
genuine fire conditions and other radiant sources.
1.1
Features
1.2
Visual Flame Detection
The detector operates ‘stand alone’ or can be integrated with an FM Approved control system.
Detectors are typically located throughout the installation in order to achieve specific detection
coverage and ensure that site performance requirements are met. Each detector is capable
of providing live video images and fire alarm/fault signalling to the control equipment. Each
detector incorporates within a single unit an imaging device, digital signal processing hardware,
and firmware algorithms to process live video images and recognise flame features.
This document is strictly private and confidential, reproduction without Micropack approval is prohibited. © Micropack Engineering Ltd, 2015
Live Video
A live colour video image is available from
each detector; this allows information about
the protected area to be displayed on a
monitor in the control room, providing the
operator with a visual feedback of an event,
which can reduce response time.
Immunity & Discrimination
The detector is immune to common sources of
unwanted alarms such as hot work (e.g.
grinding and welding), Hot CO2 emissions
(such as turbine exhausts) and Flare Radiation.
Robust and Reliable
The detector has been designed to tolerate
extreme environmental conditions
experienced offshore or onshore.
Detection Coverage
The detector is sensitive to fires of
n-heptane 0.1m2 at up to 44m within
a 90° Horizontal field of view.
SIL Capability
The detector has been certified
IEC 61508 SIL 2.
Sensitivity
The sensitivity of the detector is preset
and no changes in sensitivity are required.
FDS301 Flame Detector FDS301 Safety and Technical Manual
4
Ref: 2200.5009 Rev: 2.3 ECN 4434

2
Safet
y
Instructions
For the correct and effective use of this e
q
ui
p
ment, to maintain safet
y
and avoid hazards
it is essential that you read and understand these instructions fully, act accordingly
BEFORE installing, operating or maintaining the equipment.
2.1
Warnin
g
s
This equipment is certified and intended for use in potentially hazardous areas. Install and use
the equipment in accordance with the latest regulations.
For European (ATEX) installations IEC/EN60079-14 ‘Electrical Installations in Hazardous Areas’ and
IEC/EN 60079-17 ‘Inspection and Maintenance in Hazardous Areas’ should be strictly observed.
For installations in North America the National Electrical Code (NEC) should be strictly observed.
In other countries the appropriate local or national regulations should be observed.
The equipment must be properly earthed to protect against electrical shock and minimise
electrical interference.
Do not drill holes in any housing or enclosure as this will invalidate the explosion protection.
Ensure that the enclosure lid is fully tightened and locked into position before energising the
equipment.
Do not open the enclosure in the presence of an explosive atmosphere.
All permits and proper site procedure and practices must be followed and the equipment must
be isolated from the power supply before opening the enclosure in the field.
Operators must be properly trained and aware of what actions to take in the event of a fire being
detected.
Cable to be used for installation is to be selected with a temperature rating of greater than 25
degrees Celsius above the maximum ambient temperature.
The metric cable entries are fitted with an internal stop. This will result in threads of the cable
gland being visible. Do not over tighten.
2.2
Cautions
Use onl
y
a
pp
roved
p
arts
and accessories
with
this
e
q
ui
p
ment.
Do not attempt to replace the window as the glass and the front cover are individually matched
pairs to meet the stringent requirement of the Hazardous area certification.
micro
p
ack.co.uk
PAY ATTENTION TO ALL SAFETY WARNINGS AND CAUTIONS
FDS301 Flame Detector FDS301 Safety and Technical Manual
5
Ref: 2200.5009 Rev: 2.3 ECN 4434

The threaded
p
ortions of the detector are flame
p
aths.
These threads and the flame
p
aths
around the window are not to be repaired.
To maintain safety standards, commissioning and regular maintenance should be performed b
y
qualified personnel.
2.3
VDS EN54
p
art 10 Limitations
of
use
The FDS301 is not a
pp
roved for use in Ox
yg
en-enriched
atmos
p
heres.
As the FDS301 responds to visible flame the FDS301 cannot be used in locations where flare
stacks are within its field of view without triggering alarms.
The FDS301 is unable to detect fires that are invisible to the naked e
y
e, such as those usin
g
p
ure
hydrogen, methanol and sulphur as fuel.
The sensitivity of the FDS301 is reduced by obscurants such as smoke, fog and other airborne
particulates. The FDS301 may be blinded by extremely dense obscurants.
Arc welding should not take place within 1 m of the FDS301.
The “optical fault” must be disabled for applications where there is no light present eg. Cellar or
Chimney stack.
2.4
Im
p
ortant Safet
y
Notices
Pa
y
attention to the
g
uidelines
g
iven throu
g
hout
this
document.
If in any doubt about the instructions listed within this manual then please contact Micropack
(En
g
ineerin
g
) Ltd. Micro
p
ack (En
g
ineerin
g
) Ltd takes no res
p
onsibilit
y
for installation and/or use
of its equipment if this it is not in accordance with the appropriate issue and/or amendment of
the manual. Micropack (Engineering) Ltd reserve the right to change or revise the information
contained herein without notice and without obligation to notify any person or organisation of
such action.
Onl
y
those
p
arameters and confi
g
urations
hi
g
hli
g
hted with the FM diamond (
tested and approved by Factory Mutual.
) have been
Warnin
g
Do not open the detector assembly in a hazardous area when power is applied. The detector
contains limited serviceable components and should never be opened except by trained
personnel.
Caution
The wiring procedures in this manual are intended to ensure functionality of the device under
normal conditions. Due to the many variations in wiring codes and regulations, total compliance
to these ordinances cannot be guaranteed. Be certain that all wiring complies with all local
ordinances. If in doubt, consult the authority having jurisdiction before wiring the system.
Installation must be done by trained personnel.
This document is strictly private and confidential, reproduction without Micropack approval is prohibited. © Micropack Engineering Ltd, 2015
FDS301 Flame Detector FDS301 Safety and Technical Manual
6
Ref: 2200.5009 Rev: 2.3 ECN 4434


Caution
To prevent unwanted actuation or alarm, extinguishing devices must be inhibited/isolated prior
to performance testing or maintenance.
Caution
SIL 2 capability is only confirmed for 4-20mA output configuration of the FDS301 visual flame
detector.
INSTALLATION
Detector Orientation
Detectors should be mounted with the earth stud/status led directl
y
below the lens to ensure the
90° horizontal field of view is achieved (see section 3.2 and 5.2 of this document).
Detector Positionin
g
Detectors should be positioned to provide the best unobstructed view of the area to be
protected. (see section 5.2 of this document).
The followin
g
factors should also be taken
into
consideration:
•
Identify all high risk fire ignition sources. Ensure that enough detectors are used to
adequately cover the hazardous area.
Locate and position the detector so that the fire hazard(s) are within both the field of
view and detection range of the device.
For best performance, the detector should be mounted on a rigid surface in a low
vibration area. (see section 5.1 of this document).
Extremely dense fog or blizzard conditions could eventually block the vision of the
detector. (see section 5.4 of this document).
For indoor applications, if dense smoke is expected to accumulate at the onset of a fire,
mount the detector on a side wall (approximately 1 metre, 3 feet) down from the ceiling.
The FS301 flame simulator can be used to verify correct detector positioning and
coverage (see section 6.2 of this document).
The FDS301 has one sensitivity setting, this is factory set, and no changes can be made
to set-up except by fully trained Micropack engineers.
The detector carries out continuous internal hardware diagnostic testing to ensure
correct operation is relayed to the control system. It can also be set to indicate dirty
optics if this function is switched on. The detector should be subjected to a background
light level of at least 1 LUX in every 16 hour period for 1 hour.
The FDS301 is not designed to annunciate diagnostic failures of signal returns via
external wiring. Control systems and fire panels generally have fault monitoring for
such an eventuality.
•
•
•
•
•
•
•
•
micro
p
ack.co.uk
FDS301 Flame Detector FDS301 Safety and Technical Manual
7
Ref: 2200.5009 Rev: 2.3 ECN 4434

3
Installation
The FDS301 design has been developed to allow simple installation. The detector comprises
two key components, the detector enclosure and the detector internal assembly. The detector
assembly located in the front of the enclosure should not be removed except by trained
personnel. Unauthorised removal or disassembly of the detector assembly will invalidate the
warranty. Only the rear end cap can be removed for terminal access.
3.1
Detector Enclosure
The detector electronics are housed in an enclosure certified for use in a hazardous areas. For
the exact certification and conditions of use see certification label on the device, or the example
drawing below:
The enclosure com
p
rises
the front enclosure
cover
(includin
g
the
face
p
late window), the rear
enclosure cover, the enclosure body (with certification label), and the mounting bracket.
This document is strictly private and confidential, reproduction without Micropack approval is prohibited. © Micropack Engineering Ltd, 2015
FDS301 Flame Detector FDS301 Safety and Technical Manual
8
Ref: 2200.5009 Rev: 2.3 ECN 4434

3.2
Mountin
g
&
Orientation
The mountin
g
bracket allows the detector’s
v
ertical
orientation
to
be
ad
j
usted from 0 to 45°,
and
allows a horizontal rotation of +/-45°.
Fi
g
ure 1: Detector Mountin
g
Bracket
&
Orientation
Status led must be
below the lens.
micro
p
ack.co.uk
FDS301 Flame Detector FDS301 Safety and Technical Manual
9
Ref: 2200.5009 Rev: 2.3 ECN 4434

Fi
g
ure 2: FDS301 Ceilin
g
Mount
Fi
g
ure 3: FDS301 Wall Mount
Firm, vibration free mountings are essential for trouble free operation of optical systems and the
detector should be fixed to a rigid mounting. When mounting on a wall in this orientation allow
for the cable gland and cable as this may restrict the downward rotation of the detector.
This document is strictly private and confidential, reproduction without Micropack approval is prohibited. © Micropack Engineering Ltd, 2015
FDS301 Flame Detector FDS301 Safety and Technical Manual
10
Ref: 2200.5009 Rev: 2.3 ECN 4434