Wolf LinkEx WF-250XL Troubleshooting guide

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LinkExTM LED
FLOODLITE
WF-250XL
WOLF SAFETY LAMP COMPANY
Saxon Road Works, Shefeld, S8 0YA, England
Tel: [phone] E-mail: [e-mail]
Fax: [phone] Website: www.wolfsafety.com LinkEx LED
• Ideal for task lighting and work
activities in a hazardous area
• ATEX and IECEx approved for Zone
1 and 21 explosive gas and dust
atmospheres
• Compact and lightweight design
for ease of portability
• High power ‘tted for life’ LED
light source
• High quality, even, ultra-wide
angle LED light, reduces shadows
and enhances visibility
• Medium angle ood beam
• Safe/Optimal Voltage Indication
“SOVI” to ensure safe certied
operation
• ATEX/IECEx approved oodlite
protection accessories available
• Will t through Ø410mm access
hole when used in stand or
Ø240mm when removed from
stand
LinkExTM WF-250XL LED Floodlite Features
0598
WF-459 - Issue 1
DF 510

Wolf LinkExTM WF-250XL LED Floodlite
Operation and Maintenance Instructions
Please Retain - Read Before Use
SOVI LAMP OFF SAFE OPTIMAL VOLTAGE UNSAFE VOLTAGE
WF-250XLH
WF-250XLL
< 90V
< 18V
90-100V
18-19V
100-264V
19-50V
264V >
50V >
LIGHT OUTPUT OFF PULSE ON PULSE
EU Declaration of Conformity
The Wolf WF-250XL LED Floodlite meets all relevant provisions
of the 2014/34/EU Explosive Atmospheres (ATEX Equipment)
Directive by virtue of the issued EU type examination certicate,
demonstrating compliance with all relevant harmonised
standards and essential health and safety requirements.
The Wolf WF-250XL LED Floodlite is a high performance
lightweight portable oodlite, constructed from marine grade
aluminium with a powder coated nish and toughened glass
lens. The oodlite is Group II, Category 2 equipment for use in
zone 1, 2, 21 and 22 potentially explosive gases, vapours, mists
and dusts where the T4 temperature class/118°C maximum
surface temperature permits.
Certication/Approval Code:
Ex eb mb op is IIC T4 Gb Ex tb op is IIIC T118°C Db
Ta = -40°C to +55°C or
Ta = -40°C to +40°C when the WF-462 optional Protection Cover
is tted.
EU Type examination certicate: CML 18ATEX3372X
Notied Body:
Notied Body Number: 0598
Harmonised standards applied:- EN60079-0:2018,
EN60079-7:2015, EN60079-18:2015, EN60079-28:2015,
EN60079-31:2014.
Ingress protection level IP66 & IP67 to EN60529:1992.
Wolf WF-250XL LED Floodlites are manufactured in accordance
with the 2014/30/EU EMC Directive to the following standards:-
EN 55015:2013+A1 2015, EN 61000-3-2:2014,
EN 61000-3-3:2013, EN 61547:2009.
Alex Jackson – Managing Director,
Wolf Safety Lamp Company Ltd.
IECEx Scheme Certification
Certicate number: IECEx CML 18.0198X
Certication/Approval Code:
Ex eb mb op is IIC T4 Gb Ex tb op is IIIC T118°C Db
Ta = -40°C to +55°C or
Ta = -40°C to +40°C when the WF-462 optional Protection Cover
is tted.
Standards applied: IEC60079-0:2017, IEC60079-7:2015,
IEC60079-18:2014, IEC60079-28:2015 & IEC60079-31:2013.
IMPORTANT: SPECIAL CONDITIONS OF USE (X)
The enclosure’s coated surfaces are non-conducting and may
generate an ignition-capable level of electrostatic charge under
certain extreme conditions. The user shall ensure that the
equipment shall not be installed in a location where the external
conditions are conducive to the build-up of electrostatic charge
on non-conductive surfaces. Additionally, the equipment shall
only be cleaned with a damp cloth.
EQUIPMENT USE
1. Check the rating label to ensure the Floodlite is suitable
for the supply provided, ambient temperature present and the
environmental conditions.
2. It is the user’s responsibility to ensure there is no potential
difference between the earth supply to a Floodlite unit and the
local earth in the work area. Where this is not possible the
equipment should be securely earth bonded to metalwork in
the immediate vicinity of where the Floodlite is being used. A
exible cable is recommended (6mm² minimum, no more than
two metres long), connected to the earth grounding point on
the Floodlite enclosure. Floodlites must be de-energised during
connection or disconnection of the local earth bond.
3. Safe/Optimal Voltage Indicator (SOVI). The Wolf WF-250XL LED
Floodlite incorporates SOVI technology to highlight to the user
if the product is operating outside of the certied maximum and
recommended minimum voltage range.
4. The diagram below represents the SOVI function, it
demonstrates that when the voltage is not within the “Safe/
Optimal Voltage” the light output will change from a constant
uninterupted beam to a pulse.
If connecting a large number of oodlites check for SOVI
indication on all the lamps in the string. Guidance on lamp
connection and extensions can be found on the Wolf website:
www.wolfsafety.com. If a lamp is pulsing, it is recommended that
the lamp be switched off until it is operating at a correct voltage.
5. This product is Class 1 equipment and must be earthed.
Floodlites are supplied as standard with 3 core earthed supply
cables. Where the user specically requires a 24 volt SELV
Floodlite with 2 core cable (+ve and -ve) / a 2 pole plug, the
Floodlite must be used with a separate connection to earth via
the external earth grounding point.
6. All Floodlites have terminal blocks suitable for incoming
cables for up to 4mm² conductor capacity.
7. Ex “e” certied Increased Safety terminal blocks must have all
terminals fully tightened down even if a conductor is not tted.
On all terminal blocks, tighten screws to 0.5-0.7Nm.
8. ATEX/IECEx approved cable glands must be used and be
suitable for the type of cable used. Any unused cable entries
should be blanked off with a suitable ATEX/IECEx approved
stopper plug to maintain a minimum IP66/67 rating as marked
on the label.
9. Floodlites, cable and accessories should be inspected prior to
each use for visible signs of damage. Particular attention should
be paid to gland and socket entries. Damaged lamps should be
removed from the work area and repaired before being put back
in service.
II 2GD0598
Wiring Schematic
Driver Input Terminal Block (90-264V Variant) Driver Output Terminal BlockDriver Input Terminal Block (18-50V Variant)
To LED Panel - WF-558
To
Driver
Terminal Torque
0.5-0.7Nm
To Front Housing
Terminal Torque
0.5-0.7Nm
Terminal Links
WF-438
18-50V
LV Input Linkable Option Only
To Front Housing
Terminal Torque
0.5-0.7Nm
Terminal Links
WF-438
90-264V
HV Input Linkable Option Only
Terminal Connecting
Ensure less than 1mm conductor exposed
from the metal of the terminal throat
Torque
0.5-0.7Nm
30mm 30mm
Max 8mm Max 8mm
Fig. 1 Fig. 2 Fig. 3
Fig. 4 Fig. 5 Fig. 6
Spare Parts
Item No. Part No. Spare Part Description Quantity
1 WF-551 Painted rear casting, enclosure seal, washers and retaining bolts 1
2 WF-571 Painted front cover assembly, complete with glass, retaining brackets, seal and wiring labels 1
3 WF-553 Glass lens, seal and bracket pads 1
4 WF-586 18-50V LED driver 1
5 WF-592 90-264V LED driver 1
6 WF-558 LED panel, thermal pad and xing screws 1
7 WF-561 6 Way - 4mm2 terminal block, 2 QB links and xing screws 1
8 WF-565 2 Way - 4mm2 terminal block and xing screw 1
9 WF-225 LED driver retention bracket 1
10 WF-559 Complete driver assembly including bracket and terminals (18-50V) 1
11 WF-569 Complete driver assembly including bracket and terminals (90-264V) 1
12 WF-284 Floodlite enclosure seal 1
13 WF-285 Floodlite lens seal 1
14 WF-276L Internal screw and label set (18-50V) 1
15 WF-276H Internal screw and label set (90-264V) 1
16 WF-566 Internal earth/grounding wire set 1
17 WF-568 External earth stud 1
18 WF-490 Bridle xing kit 1
19 WF-445 Frame and bridle (No xings included) 1
20 LL-311 Trumpet gland M20 x 1.5mm 1 (+1 LinkEx Versions)
21 WF-495 M20 stopping plug 1
22 WF-549 Certication label and bracket are specic to the individual product, contact your authorised Wolf supplier for replacement
23 A-103 External Eyebolt M6 x 15mm
Contact your authorised Wolf supplier for replacement cables, plugs or link socket components.
SGS FIMKO OY, PO Box 30 (Särkiniementie 3),
00211, Helsinki, Finland.

Wolf LinkExTM WF-250XL LED Floodlite
Torque
2.0Nm
3
13
22
2
12
DISPOSAL OF WASTE MATERIAL
Disposal of packaging, LinkEx LED products, old LED panels
and drivers should be carried out in accordance with national
regulations, (WEEE).
The Wolf Safety Lamp Co. Ltd has a policy of continuous product
improvement. Changes in design details may be made without
prior notice. Prices and design are subject to alteration without
notice. All products sold are subject to our conditions of sale.
A copy of these instructions with any relevant revisions can be
found at www.wolfsafety.com.
CHANGING LED DRIVERS
Unscrew the internal & external wiring terminations from the
six & two way terminal blocks and remove the driver retention
bracket by unscrewing the two bolts. To reassemble follow the
above points in reverse order. For wiring and termination details,
see Fig. 1-6. Specied torque settings must be followed.
CHANGING GLASS LENS
Replace the glass by unscrewing the six socket head screws
securing the three retaining plates. Fit the new glass making
sure strip gasket material is tted between the glass and each
retention plate. See Fig. 14. Specied torque settings must be
followed.
FAULT FINDING
If a WF-250XL Floodlite fails to function, remove the product
from service into a non hazardous area. Remove the cover and
apply power to the Floodlite. Check the input voltage at the
terminals is present and is the correct rating for the Floodlite.
If the voltage is correct check the output voltage to the LED
panels, this should be 19V DC+/-1V. If this voltage is not present
then the driver is faulty, if it is then the LED panel is faulty.
Replace as necessary.
Risk of Shock
CHANGING LED PANELS
The LED panel can be removed by unscrewing four socket head
screws and the wiring terminations. Discard the old panel and
replace with a new one by following the removal procedure in
reverse. A new thermal pad must be tted on replacement under
the LED panel as shown in Fig. 7. For wiring and termination
details, see Fig. 1-6. Specied torque settings must be followed.
CHANGING CABLE OR SOCKET
Disconnect the input cable, release cable from input gland.
Check the gland seal is in good condition, t the new part(s) and
re-assemble the product by following the stated procedure in
reverse order. For wiring and termination details, see Fig. 1-6.
Specied torque settings must be followed.
If any change is made to cable, glands, plugs or sockets the
manufacturers instructions should be adhehered to, ensuring
the seal between the item and the cable is reliable.
Please note sockets and plugs have no IP rating unless
connected or sockets have covers closed.
FRONT COVER
Remove the front cover by unscrewing the four socket head
retaining bolts. Release the Earth connecting wire by releasing
the locking spade connnection in the oodlite by depressing the
tab on the connector and pulling away. See g. 8.
Perform repairs/maintenance as necessary. To reassemble
follow the above points in reverse order. Take care not to trap/
crush wires and ensure the seal is in good condition. Ensure
correct torque settings are followed, as specied in Fig. 7.
*The Certicate label and serial number are tted to the front
cover, therefore do not interchange the front covers with other
WF-250XL Floodlites. See internal body label for serial number
reference.
Torque
0.5-0.6Nm
Torque
3.6-3.8Nm
4
5
/
8
7
10
11
/
9
Fig. 14
Fig. 15
MAINTENANCE
1. IMPORTANT. Any maintenance work should be carried out in
the safe area by suitably qualied and experienced technicians
only.
2. Isolate the Floodlite from the mains supply and allow to cool
before carrying out any maintenance work.
3. IMPORTANT. No modications are permitted to the Floodlites,
all spare parts must be purchased from the manufacturer,
unauthorized modications or spare parts will invalidate
certication.
4. Portable Appliance testing must be carried out to IEC, EN
standards to the correct rating i.e. 250V DC for 18-50V versions
and 500V DC for 90-264VAC versions. Live and neutral cables
must be shorted together and the voltage applied between earth
and this connection.
TECHNICAL DATA
Enclosure Marine grade aluminium alloy
with a powder coated nish.
Lens 6mm Toughened Glass
Light
Source
Type 18 x White High Power LEDs
Life 100,000+ hrs
Weight 5.4kg (excluding cable)
ELECTRICAL DATA
Model WF-250XLL WF-250XLH
Voltage 18-50V AC/DC 90-264V AC only
Freq Hz 50/60 50/60
Total Circuit Power ≤ 28 Watts ≤ 31 Watts
VA (AC) 42VA at 24V AC
48VA at 42V AC
52VA at 48V AC
N/A
PHOTOBIOLOGICAL SAFETY
Floodlites are risk group 1 - No photobiological hazard under
normal behavioural limitations.
EN IEC 60079-17

Wolf LinkExTM WF-250XL LED Floodlite
Torque
0.8-1.0Nm
Torque
3.6-3.8Nm
20 21
19
10
11
/
18
18
90-264V versions of WF-250XL
LinkEx Floodlite can be tted
with a wired ATEX/IECEx socket
on this arm of the frame to
enable the Floodlite to be linked
to another Floodlite and set up
a string of lights from a single
power source.
Contact your Wolf supplier for
replacement link socket parts.
1
2
Torque
2.4-2.6Nm
17
Threadlock medium
strength blue
Product Breakdown
Clip in earth
connection to front casting
Fig. 7
Fig. 8
Fig. 9
6
16
Screw, nut and
washers not included
Accessories
WF-331
Mesh Cover
WF-462
Anti-Static Protection Cover Kit
WF-545
Magnet Kit
WF-321
Anti-Static Lens Guard Kit
Note:
II 2GD
Ex eb mb op is IIC T4 Gb
Ex tb op is IIIC T118°C Db
(-40°C ≤ Ta ≤ +40°C) Fig. 10 Fig. 11 Fig. 12 Fig. 13
23