Wolf ATEX 400VA, Operation And Maintenance Instructions

Page: 1 / 3

LL-366 Issue 8
DF378
Wolf ATEX 400VA 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
LL-114/ (Suffix defines cable and plug options)
LL-214/ (Suffix defines cable and plug options)
This Wolf ATEX Transformer has a durable GRP enclosure housed in a
stainless steel skid, within the enclosure is a transformer component with
maximum load of 400 VA. 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 T200ºC
(Tamb = -20 to +55ºC)
Supply Voltage: 230VAC or 6%, -10%
Output Voltage: 110VAC or 24VAC
Check equipment label for confirmation of exact rating.
Certificate ‘X’ suffix - Do not open Transformer 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 EC Declaration of Conformity.
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
USE OF ATEX TRANSFORMERS
1. The Transformer is designed to supply a maximum load of 400 VA, 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. The fuse ratings used in this Transformer have been selected for use
with Wolf temporary lighting products. For the fuses to provide the
required level of protection the output cable to any connected device
must be limited to a maximum 35 metres of 4mm
2
cable or 20 metres of
2.5mm
2
cable. Longer cable lengths and smaller cable diameters will
increase cable impedance; this may prevent correct fuse operation,
resulting in overheating, damage to the Transformer and a potentially
unsafe condition in the safe or hazardous area.
3. It is the user’s responsibility to ensure that any cable configuration used
with this Transformer will not compromise the integral fuse protection of
the unit.
4. 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%).
5. All Transformers have terminal blocks suitable for up to 4mm
2
live,
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.
6. 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,
DISPOSAL OF WASTE MATERIAL
Disposal of packaging, Transformer and associated parts should be carried
out in accordance with national regulations.
Ingress protection level:
IP66
WARNING: USE ONLY GENUINE WOLF REPLACEMENT PARTS.
Spares list:-
Input
Voltage
Input
Fuse Wolf Part
Number
Output
Voltage
Output
fuse
Wolf
Part
Number
110V 4Amp
(aM)
LL-377 24V 16Amp
(gG)
LL-379
230V 2Amp
(aM)
LL-1002 24V 16Amp
(gG)
LL-379
230V 2Amp
(aM)
LL-1002 110V 4Amp
(gG)
LL-
1007
LL-376 230/110 input - 24v output 400VA transformer component.
LL-378 24 volt 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
E-mail: info@wolf-safety.co.uk Website: www.wolf-safety.co.uk