WEA
Series LED
fixture for
Important
Information:
hazardous areas.
Self-contained Emergency
Version Operating Instructions
These instructions contain important safety information, read and follow them carefully. Dialight will not accept any
responsibility for injury, damage or loss which may occur due to incorrect installation, operation or maintenance.
Safety Instructions:
The installation, operation and maintenance must be carried out by an electrician suitably trained in hazardous areas and with
knowledge of increased safety explosion protection IEC 60079-14
• The technical data indicated on the LED fixture are to be observed.
• Changes of the design and modifications to the LED fixture are not permitted.
• Repairs must only be carried out by a qualified electrician with hazardous area knowledge.
• Only genuine Dialight Europe Ltd replacement parts must be used when unforeseen repairs are required.
• Observe the national safety rules and regulations during installation.
• Do not keep these operating instructions inside the LED fixture during operation.
• Do not open the LED fixture when energised.
• Wait 10 minutes before opening after de-energising the LED fixture.
Technical Data:
Category of application:
IECEx / ATEX IECEx BAS 10.0051X / Baseefa10ATEX0092X
9 LED VERSION 18 LED VERSION 27 LED VERSION
Ex d e mb IIC T6 Gb
Ex tb IIIC T85°C Db
IP66/67
II 2GD
Rated Input Voltage: 110/120VAC 50/60Hz or 230/240VAC 50/60Hz 230/240VAC 50/60Hz
Rated Input Current:
Operating Ambient
Housing Material: LM6 Aluminium (Copper free)
Housing Colours: RAL 7001 (optional RAL 7011 / RAL 8011 / RAL 9005 / RAL 8019)
Storage Temp. original
Protection Glass: Toughened Glass Frosted or Clear.
Cable Entries: Standard 2 OFF M20 x 1.5mm (Other entry options may have been supplied)
Tightening Torques See Table
140mA at 110V
85mA at 230V
0°C to +50°C
Temp.
packaging:
Dimensions: See Figure.1
Weight: 5.4kg (11.9 lbs) 5.4kg (11.9 lbs) 6.1kg (13.50 lbs)
(optional -20°C to +50°C)
250mA at 110V
130mA at 230V
-20°C to +60°C
180mA at 230V
-20°C to +40°C
Dialight – LED Solutions for Industrial and Hazardous Applications
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A80-000847 Issue B
Figure 1. Dimensions in mm [inches] (shown with flush mount bracket)
Electrical Connections
LIVE2 (SW)
NEUTRAL
EARTH
OPTIONAL M6
Figure 2. Electrical Connection
=
LIVE1 (PERM)
EARTH BOND
L = LIVE / BROWN
N = NEUTRAL /BLUE
E = EARTH / GREEN & YELLOW
EXTERNAL BONDING EARTH ON BODY
POINT
The terminal block is suitable for multi-stranded and single
core cables up to a maximum of 4mm2, strip length 10mm
The LIVE (L1 and L2), NEUTRAL and EARTH connections
are clearly marked on the terminal block.
The L1 connection is a permanent live feed. It powers the
main normal mode operation, battery charger and is used to
activate emergency mode.
The L2 connection is a switched live feed to control luminaire
normal mode on or off. It is a signal input that consumes
negligible current.
Single Luminaire Electrical Connections:-
Push down at the ‘cross point’, insert correct cable and
release, ensuring the cable has been securely retained.
Loop Thru Electrical Connections:-
Connect incoming cable as above then connect the outgoing
cable to the associated adjoining connection to pass to the
next luminaire.
ONLY SINGLE CABLES TO BE USED ON EACH
CONNECTION.
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Dialight – LED Solutions for Industrial and Hazardous Applications
Luminiare Mounting
Options
:-
COMPROMISE THE IP RATING.
Option 1: Direct Mounting
Option 2: Flush Bracket Mounting
Option 3: 30° Angle Bracket Mounting
Contents Supplied with Luminaire:-
1 x WEA Luminiare
4 x TORX M6 x 12mm TAPTITE
1* x ATEX Certified Blanking Plug
1* x Dust Plug (used for shipping purpose only)
Mounting Brackets (optional)
(* Quantity may vary with options ordered)
Tightening Torques
Front assembly to main
body
Body mounting 8.0Nm / 71.0 in lb
Certified Blanking Plug 2.0Nm / 18.0 in lb
Note:- All TORX fittings are T30
WARNING:- DO NOT OVERTIGHTEN AS THIS MAY
Electrical Connection Data:-
Terminal capacity - 0.5 – 4mm2
(solid , stranded or fine stranded)
Optional ferrule or crimp pin maximum cable size
2.5mm
Cable strip length - 10-11mm
2
5.5Nm / 49.0 in lb
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Dialight – LED Solutions for Industrial and Hazardous Applications
Conformity with Standards
This equipment conforms to the standards specified in the
Declaration of Conformity.
It has been designed, manufactured and tested in
accordance with BS EN 9001.
94/9 EC Equipment and protective systems intended for
use in potentially explosive atmospheres.
2004/108/EC Electromagnetic Compatibility.
Equipment Application
This lighting equipment is intended for use in a potentially
explosive atmosphere in Zones 1 and 2 to the requirements
of the ATEX Directive 94/9/EC. The product can be used
inside or outside to illuminate areas with potentially
explosive atmosphere.
The WEA version may used as a maintained or nonmaintained emergency light. The internal battery pack
provides a minimum 3 hour emergency duration (at
reduced light output).
Installation
Ensure that the mains voltage supply is disconnected
before connecting the luminaire. Install the equipment in
accordance with the manufacturers instructions as well as
any other applicable electric codes.
Always transport and store the equipment in its original
packaging and keep in a dry location.
When unpacking check for any cracks or damage in the
housing, glass and gasket seal, if in doubt do not install!
The improper installation, operation and maintenance of
these luminaires may result in the invalidation of the
guarantee.
Mounting Luminaire
There are 3 mounting options for this luminaire, depending
which mounting accessories were supplied on purchase
(See Luminaire Mounting Options).
Option 1. Direct Mounting
For directly mounting the luminaire to a cable tray or similar
no brackets are supplied and the fixture can be secured
directly using the 4 TORX screws supplied, refer to table
for tightening torques. Rear access required.
Option 2. Ceiling or Flat Wall Mounting
Assemble the mounting brackets to the luminaire with the 4
TORX screws supplied, refer to table for tightening torques.
Use the dimensions in Option 2 to locate the luminaire into
the desired position. Maximum screw/bolt size 8mm (not
supplied).
Option 3. 30° Angled Bracket
Assemble the 30° angled mounting bracket to the luminaire
with the 4 TORX screws provided, refer to table for
tightening torques.
Use the dimensions in Option 3 to locate lighting equipment
into the desired position. Maximum screw/bolt size 8mm
(not supplied).
Opening the Luminaire
ATTENTION:
Always disconnect from the power supply before
opening the luminaire.
Wait 10 minutes after disconnection before opening.
Unscrew the 4 front TORX bolts to gain access to the
wiring tray. The front of the luminaire with LED tray can
now be lowered and supported by the drop cable.
Removing the front of the luminaire will terminate any
emergency mode operation and place the unit into
“rest” mode.
On a new luminaire, the battery will have been
disconnected, and be in an unknown state of charge.
Do not allow sudden or excessive forces to be
applied to the drop cable as this could
damage the LED tray.
Cable Entries and Cables
IMPORTANT:
The cable glands used with this luminaire must be
certified to the Ex e requirements.
The cable used must be suitable for the site application
and/or the site requirements.
When assembling the cable entries for the mains
connection, always observe the manufacturer’s
specifications for the glands used.
Unused cable entries must be closed and sealed by a
suitable certified blanking plug.
Note:- This luminaire is supplied with one dust cap and
one certified blanking plug.
Dialight – LED Solutions for Industrial and Hazardous Applications
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The cable entries should be securely tightened to ensure
that the minimum protection rating is achieved. The cable
entry should be rated to minimum of IP66 to maintain the
protection level of the luminaire.
Do not over tighten as the protection rating may be
compromised.
Always refer to gland manufacturers data for torque
settings.
Special Conditions for Safe Use
Suitably certified cable entries must be used which include
a sealing washer to maintain the IP66/67 rating of the
enclosure.
The supply to the luminaire must include a fuse which is
capable of interrupting a 1500A short circuit current.
The glands must be suitable for use within an operating
temperature range of -40°C to +80°C.
The gland is required for increased safety (Ex-e) protection,
the entry thread shall be suitable sealed (in accordance
with IEC 60079-14) to maintain the ingress protection rating
of the fixture.
When used with steel basket weave armour or braided
(screened) cable the basket weave armour or braid is
unable to carry the cable load without fracture therefore the
cable must be clamped and cleated to prevent pulling on
the cable being transmitted to the cable terminations.
Battery
Two battery options are available.
3.6V 4Ah (part ref A80-000799) is provided with standard
temperature range 9 and 18 LED units. It is secured in
place with releasable cable ties, and need not be removed
during installation.
3.6V 10Ah (part ref A80-001500) is provided with 27 LED
units, optionally for -20C operation on 9 and 18 LED units.
The 10Ah battery is mounted on a bracket which must be
removed during installation. DISCONNECT the 2-pole
battery connector and remove two M4 Torx screws (T20
head) adjacent to the battery. The screws are retained to
the bracket. Un-hook the bracket and remove to gain
access to the terminal block below.
Electrical Connection
See Figure 2. Electrical Connection
When connecting the conductors extra care should be
taken in order to maintain the hazardous protection.
The insulation of the conductors shall reach up to the
terminal block. The conductor itself shall not be damaged.
The connectible minimum and maximum conductor cross
sections shall be observed (see electrical connection data).
A maintained mode emergency luminaire requires 2 live
feeds.
The L1 connection is a permanent live feed. It powers the
main normal mode operation, battery charger and is used
to activate emergency mode. It may be supplied via an
emergency lighting “Test” switch.
The L2 connection is a switched live feed to control
luminaire normal mode on or off. It is a signal input that
consumes negligible current.
Battery and Magnetic interlock
The driver electronics (inside the flameproof Ex-d tube)
incorporate a magnetic sensor device to shut down all
battery related circuits when the fixture front is removed.
A small disc magnet is mounted onto the inside of the LED
tray assembly, which when properly in place activates
battery related functions (charging, monitoring and
emergency operation).
Upon completion of electrical wiring and testing, refit the
battery and bracket (10Ah version), then re-connect the
battery by mating together to the 2 pole plug and socket.
Closing the LED Luminaire
Remove any foreign bodies from the fixture
Pay attention when fitting the LED tray to the enclosure,
make sure the seals are clean and undamaged.
Do not allow any cables to become trapped between the
LED tray and the enclosure, battery or driver tube.
Tighten all 4 TORX screws evenly (see table)
Taking into operation
Prior to operating, check the luminaire for its correct
installation in compliance with these operating instructions
and other applicable regulations.
Attention: Only fully certified equipment may be put
into operation.
Improper installation and operation of this luminaire may
invalidate the warranty.
Upon applying power, confirm the operation of battery
circuits by observing the green status LED located in the
corner of the LED tray. The green status LED will light only
if
- The LED tray is properly fitted, activating the magnetic
sensor
- The battery is connected
- The battery is charging and within acceptable voltage
limits
Dialight – LED Solutions for Industrial and Hazardous Applications
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If the green Status LED is not lit with power applied to the
L1 feed, disconnect power and rectify any faults.
In Service, Battery Charging and condition
monitoring
When power is applied (initially or after an outage), the
battery will be charged for 36 hours. Thereafter, in order to
maximise battery life while maintaining emergency
capacity, the battery charging operates for 1 minute in
every hour.
The battery is continually monitored for voltage limits and
charge current acceptance (during charge pulses).
If the mains power supply is interrupted, the fixture will
switch to emergency mode operation at reduced light
output. Expected emergency mode duration exceeds 3
hours.
If, during an emergency mode cycle, the battery capacity
has deteriorated to the point that 3 hours is not achieved,
then when power is restored this battery “failure” will be
signalled by flashing the green status LED once every 8
seconds. The fault indication will be automatically reset
when a successful charge/discharge cycle is completed.
Maintenance and Battery Replacement
WARNING:
Disconnect the power supply to the luminaire before
maintenance or repair.
Wait at least 10 minutes before opening the LED
luminaire after de-energising.
The battery pack should be replaced every 4 years for
continued reliable operation. To replace the battery :
1) Disconnect the mains power – Emergency mode
will operate.
2) Unscrew the 4 front TORX bolts to gain access to
the inside. The front of the fixture with LED tray can
now be lowered and supported by the drop cable.
3) Check the Emergency mode has been terminated,
i.e. all LEDs are extinguished.
4) Disconnect the two pole battery connector.
5) Squeeze the release tab on the cable ties holding
the battery pack and remove.
6) Unpack the new battery pack and inspect for
damage.
7) Install new battery pack and secure in place by reattaching the cable ties.
8) Reconnect the battery connector.
9) Refit the front LED tray, ensuring seals are not
damaged, and cable or straps are not trapped.
10) Re-energise the circuits and check the green status
LED illuminates. Allow 24 hours charging before
expecting full emergency duration.
The battery is protected to IP30, and may be safely
transported through hazardous areas subject to local or site
regulations. Dispose of old batteries in accordance with
regulations.
If any unforeseen repairs are required then always
observe explosion protection regulations and requirements.
Inspection
Within the scope of the maintenance or inspection routine
the following should be included.
Protective hoses covering the connecting cables.
Cable entries must be free from corrosion.
Status LED must be illuminated and not flashing.
Repairs / Overhaul / Modification
The relevant national regulations which apply to the
maintenance/servicing of electrical apparatus in
explosive atmospheres shall be observed.
Any unforeseen repairs or overhaul may only carried out
with genuine Dialight spare parts.
Should the luminaire enclosure be damaged, only a
replacement will be permitted. In case of doubt, the
equipment should be returned to Dialight Europe Ltd
for inspection/repair.
Modifications to the device or changes of its design are
not permitted.
This equipment must be operated according to the
intended purpose in a perfect and undamaged condition.
Disposal/Recycling
When the apparatus is disposed of, the respective national
regulations on waste disposal should be observed.
Ordering Spare Parts
Replacement Batteries
Dialight Europe Part Number A80-000799 (3.6V 4Ah Ni-mh
battery pack) or A80-001500 (3.6V 10Ah Ni-mh battery
pack)
Should any unforeseen spares be required then please
contact Dialight Europe Ltd for availability.
Dialight – LED Solutions for Industrial and Hazardous Applications
Tel: +44 (0)1638 665161 – Fax: +44 (0)1638 660718 – www.dialight.com
Dialight – LED Solutions for Industrial and Hazardous Applications
Tel: +44 (0)1638 665161 – Fax: +44 (0)1638 660718 – www.dialight.com
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