Triple IR Flame Detectors FV400
CENTRE OF DETECTOR
FIELD OF VIEW
PREFERRED METHOD
FV400 Series Triple IR Flame Detectors-
Fixing Instructions
Introduction
This guide describes the installation procedure
of the FV400 Series of detectors and covers all
three flameproof variants: FV411f, FV412f and
FV413f.
The installation procedure gives a step-by-step
process of how to mount, wire, configure and
commission the detectors.
Reference Document
Refer to the FV400 Series Product Information and Design Application guide for
information on the Technical, Mechanical, Electrical and Environmental specifications.
Mounting a Detector
The location of each detector is determined at
the system design stage according to the principles detailed in the FV400 Series Product Information and Design Application guide and marked
on the site plan.
Check that the position chosen provides:
A clear view of the area to be protected.
Easy access to install and maintain the detec-
tor and cables.
A strong, stable structure suitable to mount
the detector.
CAUTION
Do not open the detector when it is
powered; in hazardous areas or
environmentally challenging conditions.
Tilt the face of the detector downwards to prevent water collection and reduce the settlement
of particle deposits on the window.
On the FV400 Series of detectors, all electrical
connections are made via terminal blocks inside
the rear housing of the detector. Two 20 mm
cable entries are provided.
Detectors must be securely mounted to a strong
stable structure either directly or using the
mounting bracket.
Mounting the detector directly
Fit the back-box of the detector onto the wall
by inserting the three M6 bolts, studs or
screws into the mounting holes.
Fig. 1: Detector Orientation Relative to Horizon
Mounting the detector using the
bracket
A bracket (stainless steel) is available to mount
the detector that provides flexible adjustment to
easily position the detector to cover the protected area.
The surface chosen for the mounting should be
flat over the area of the mounting bracket to
ensure a stable fixing.
The FV400 Series of detectors can be operated
in any position but the mounting point must be
chosen to allow sufficient clearance for adjust-
Fixing Instructions Doc. version 2 1/20
FV400 Triple IR Flame Detectors
124 mm
92 mm
181 mm
122 mm
94 mm
ment of the angle and must also allow space for
the cable assembly.
A clearance of 200 mm, in all directions, from the
fixing point will normally be sufficient to allow
the full range of adjustment as shown in Fig. 2.
A drilling template is provided to allow optimum
selection of the fixing centres.
Fig. 2: Adjustable Mounting Bracket and Surface Mounting Dimensions
1 To secure the mounting bracket onto the cho-
sen surface:
– Use four M8 bolts, studs or screws at the
fixing centres. (Refer to the orientation as
2 To secure the detector onto the mounting
bracket:
– Use M6 bolts, stud or screws at the fixing
centres shown in Fig 3.
shown in Fig 1).
2/20 Fixing Instructions Doc. version 2
Triple IR Flame Detectors FV400
94
139 mm
156 mm
FV411 RANGE : 2 x 20 mm GLAND HOLES
99 mm
mm
CAUTION
DO NOT CONNECT POWER
THE FITTING OF THIS TEMPORARY
WEATHERPROOF COVER DOES NOT CONSTITUTE
COMPLETION OF THE CERTIFIED ASSEMBLY
FlameVision
Fig. 3: FV400 Series of Detectors-Overall Dimensions
Temporary Weatherproof cover
The back-box is supplied with a cover that protects the wiring from the weather.
If the top-case is not fitted straight away then fit
the Weatherproof cover to protect the wiring.
This cover does not make the back-box flameproof.
CAUTION
Do not energise the wiring when the
Weatherproof cover has been fitted
onto the detector.
Ensure that the O-ring supplied is fitted to the
cover. Securely tighten the four M6 x 20 mm hex
head screws to retain the cover.
Fig. 4: Temporary Weatherproof cover
Weather hood fitting and removal
The Weather hood is optional and is used to protect the detector against extreme environmental
conditions such as strong sunlight or torrential
downpour.
The Weather hood can be fitted without having
to completely remove the detector from the
mounting bracket.
Fixing Instructions Doc. version 2 3/20
FV400 Triple IR Flame Detectors
Fitting the Weather hood
1 Loosen the three detector fixings and slide the
detector forward.
2 Position the central slot of the Weather hood
over the top fixing and slide it downwards
behind the detector.
3 Ensure that the two slots at the bottom of the
Weather hood slide over the two lower fixings.
4 Tighten the three detector fixings.
A small adjustment may then be necessary to the
detector orientation.
Removal of the Weather hood
The Weather hood can be removed without
having to completely remove the detector
from the mounting bracket.
1 Loosen the fixings.
2 Slide the Weather hood in the upward direc-
tion away from the detector.
Detector Wiring
CAUTION
Detectors must be appropriately
earthed to the required local standards.
Recommended Cable Types
The cable selected for interconnection to the control equipment should meet the requirements of
any national codes (for example, BS5839) or relevant approval bodies.
Cables should normally have a cross sectional
area of at least 1 mm
2
0.5 mm
for stranded conductors.
Multicore cables are required that must have an
overall screen and drain wire that are terminated
2
for solid conductors or
inside the detector using the EMC clamp. The
signals from the different interfaces can be freely
mixed together and do not need an individual
screen for each interface.
Any cabling and conduits must be chosen and
installed to meet the local safety (flameproof)
requirements and standards.
Cable temperature rating must allow for an
increase in the enclosure temperature of 20°C
above ambient for non-camera models and 25°C
for models with a camera.
Cable Routing
It is important to route cables to minimise any
coupling effects. Ensure that the detector cables
are not run in the same conduit or trunking as
heavy power cables.
Note
Wherever the detector cables need to
cross-over heavy power cables, ensure
that the cross-over is made at right
angles.
The wiring between the detectors and the control
equipment must be mechanically protected to
meet the local standards. Additionally, it should
be sufficiently flexible to allow alignment of the
detector to be adjusted to suit the area protected.
To meet the mandatory EMC requirements of EN
61000-6-3 for emissions and EN 50130-4 for susceptibility, it is necessary to terminate the
screening of the cable through 360° at the detector cable gland and ensure that the detector is
solidly bonded to a good local earth.
The EMC clamp provided must be fitted to
ensure that the cable screen is correctly terminated inside the detector.
4/20 Fixing Instructions Doc. version 2
Triple IR Flame Detectors FV400
Cable
Gland
EMC
Clamp
Cable Entry Sealing
CAUTION
Cable glands and stopping plugs MUST
be certified to the required standard.
They must be properly sealed to prevent
the ingress of moisture.
Cable glands MUST be sealed to the
detector housing by fitting a sealing
washer between their flange and the
housing.
Only cable glands incorporating an inner cable seal
should be used. In exposed outdoor areas, it is
recommended that a shroud be fitted over the
cable glands.
Fig. 5: EMC Clamp Fitted
In applications where the ambient temperature is
expected to be 40
the inner seal must be used and, when fitted, the
shroud must be made of CR rubber.
o
C or higher, cable glands with
The unused cable gland entries must be fitted
Fitting the EMC clamp
1 Remove about 120 mm of outer sleeving at the
end of the cable.
2 Fold the cable drain wire back over the end of
the cable and shorten the length to 20 mm.
3 Wrap the copper tape around the end of the
cable over the drain wire.
4 Pass the cable through the cable gland and the
clamp with the copper tape resting over the
clamp.
5 Slide the cable backwards to position wrapped
drain wire in the clamp.
6 Fit the loose part of the EMC clamp over the
cable.
7 Tighten the cable gland and then, tighten the
screws on the EMC clamp (See Fig. 5).
with a suitable stopping plug. The recommended
types are those with a mushroom head and an
integral ‘O-ring’.
The glands/stopping plugs should be hand-tightened with the addition of, at least, a further 1/4
turn applied by spanner or other suitable tool.
If it is not feasible to use a nylon gland washer or
where an anti-seizing union is required, the following alternative methods may be used:
The thread of cable glands/stopping plugs may
be sealed using PTFE tape or other jointing
putty or mastic.
For flameproof applications, the threads of the
flameproof glands/stopping plugs may be
sealed using any non-setting grease or putty as
described in BS EN 60079-14: 1997.
PBC/D loaded mineral oil based grease is a suitable compound and is available in 100g tubes
(Stock Code No. 517.001.250).
Enclosure Sealing
NOTICE
The Front Cover must be fitted with the
O-ring before fitting to the back box to
ensure that the enclosure is properly
sealed against environment and dust.
Fixing Instructions Doc. version 2 5/20
FV400 Triple IR Flame Detectors
Connections
Tables 1 to 4 details the power supplies, terminals and links for the different interfaces of the
FV400 Series of detectors.
Reference Document
Refer to the FV400 Series Product Information and Design Application guide for
information on the different interfaces.
Power
Supplies
Main/Loop Main power input used to
Ancillary
Power
Table 1: Power Supplies
Description
operate the detector
(DC/Zone/Loop)
Power input used for options:
Window heater
RS485
Camera/Video
Terminals Description
0 V IN Detector main power input -VE
(DC/Zone/Loop)
0 V OUT Detector main power -VE to
next detector
+VE IN Detector main power input +VE
(DC/Zone/Loop)
+VE OUT Detector main power +VE to
next detector
EOL End of line connection for
Conventional Zone
4-20 mA + 4-20 mA Output +VE
4-20 mA - 4-20 mA Output -VE
Alarm Relay
NC/NO
Alarm Relay
Alarm relay contact - CON4
selects NC/NO
Alarm relay contact common
COM
Alarm Relay
Alarm relay contact common
COM
Fault Relay
NC/NO
Fault Relay
Fault relay contact - CON5
selects NC/NO
Fault relay contact common
COM
Fault Relay
Fault relay contact common
COM
Table 2: Left-hand Side Terminals
6/20 Fixing Instructions Doc. version 2
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