LL-366 Issue 3 26/03/09
Wolf ATEX GRP Transformer
Operation and Maintenance Instructions
Please Retain – Read Before Use
Models
LL-114, LL-114/RIG, LL-114/RB, LL-114/CEAG,
LL-214, LL-214/RIG, LL-214/RB, LL-214/CEAG, LL-221
EC Declaration of Conformity
The Wolf ATEX Transformer meets all relevant provisions of the 94/9/EC
Explosive Atmospheres (ATEX Equipment) Directive by virtue of the issued
EC type examination certificate, demonstrating compliance with all relevant
harmonised standards and essential health and safety requirements.
The Wolf ATEX Transformer has a 400 VA maximum load, and is housed in a
durable GRP enclosure enclosed in a Stainless Steel Skid. The Transformer
is approved as Group II, equipment for use in zone 1 & 2 potentially explosive
gases, vapours, mists and dusts where the T3 temperature class permits.
Approval Codes/Certification:
II 2 GD Ex ed IIC T3 IP66
Ex td A21 IP66 T200ºC
-20 to +55ºC
Supply Voltages: 230VAC or 110VAC + 6%-10%
Output Voltage 110VAC or 24VAC
EC Type examination certificate: SIRA02ATEX 6248 X
The ‘X’ suffix in the Certificate Number highlights the variation in
ambient temperature at the higher power usage. Do not open
while energized.
Notified Body LCIE Paris – Head Office
33, avenue du General Leclerc
92260 Fontenay-aux-Roses
France
Notified body number: 0081
(See attached ATX Declarations for Enclosure, internal
components and assembly)
IMPORTANT
1. Read this leaflet carefully before commencing to use the transformer
and retain it for future use.
2. Check the rating label to ensure the transformer is suitable for the
supply provided, ambient temperature present and IP rating.
3. The transformer housing is constructed from GRP (Glass Reinforced
Polyester) and the mounted sockets are plastic, the end user must
ensure that these materials are suitable for the atmosphere the
transformer will be used in. Excessive force should not be used on
plastic components.
4. The transformer must not be opened when energized, even after
disconnection from the mains supply a delay of 5 minutes should be
observed before opening.
5. Ensure all replacement fuses are of the correct type and current rating.
6. 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.wolf-safety.co.uk
INSTALLATION
1. The transformer is designed to run a maximum load of 400VA, if this is
exceeded the internal output fuse may blow. Any apparatus operated
from the transformer should be checked to ensure that the maximum
load is not exceeded.
2. Apparatus with long cable lengths (>20m) must be checked to ensure
the calculated voltage drop will not prevent the apparatus from operating
within the specified voltage tolerance (+ 6%-10%).
3. All transformers have terminal blocks suitable for up to 4mm2live,
neutral and earth. Only one conductor should be fitted to each terminal
block, for screwed type terminal blocks all terminals should be fully
tightened down whether a conductor is fitted or not.
4. Approved cable glands must be used and be suitable for the type of
cable used. Any unused cable entries should be blanked off with an
approved stopper plug to maintain a minimum IP rating as marked on
the certification label.
MAINTENANCE
1. Isolate the transformer from the mains and wait 5 minutes before
opening.
2. It is essential that all transformers are maintained in accordance with
the requirements of EN60079-17
3. A visual check should be carried out to ensure all internal cable is in
good condition, and not suffering any sign of damage or degradation.
All internal connections should be checked to ensure that they are
correctly secured.
4. The condition of the gaskets on the GRP enclosure should be
inspected to ensure there is no breakdown in the IP66 rating.
5. If changing the input or output fuse care should be taken to replace
with the correct type of fuse and secure the screwed cover on fully.
6. IMPORTANT. No modifications are permitted to the transformer,
7. IMPORTANT. Use only genuine Wolf replacement parts.
DISPOSAL OF WASTE MATERIAL
Disposal of packaging, transformer and associated parts should be carried
out in accordance with national regulations.
Harmonised standards applied:
EN50014(1997) Amend. 1 & 2, EN50018(2000), EN50019(2000),
EN50020(2002), EN50028(1987), EN50281-1-1(1998)
Ingress protection level: IP66
WARNING: USE ONLY GENUINE WOLF REPLACEMENT PARTS.
Spares list:-
LL-370 Input fuse 10 Amp (am)
LL-371 Output Fuse 25Amp (am)
LL-376 230/110 input - 24v output Transformer
LL-378 24volt ATX socket
Further spares are available on request.
The Wolf Safety Lamp Co. Ltd has a policy of continuous product
improvement. Changes in design details may be made without prior notice.
Wolf Safety Lamp Company
Saxon Road Works, Sheffield, S8 0YA
Tel: +44 114 255 1051 Fax: +44 114 255 7988
