UV Light Technology UV3W-LED Instruction Manual

UV Light Technology Limited
The Light House, 582-584 Hagley Road West,
Birmingham, B68 0BS, UK
Tel: [phone] Fax: [phone]
e-mail: [email protected]k web: www.uv-light.co.uk
UV 3W HIGH OUTPUT LED TORCH
365 nm Single LED
includes re-chargeable battery, spare re-chargeable battery,
battery charger (mains and car) and pouch
OPERATING, MAINTENANCE
AND
HEALTH AND SAFETY
MANUAL
For further information please contact:

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Operating Instructions for UV 3W LED
KNOW YOUR LIMITS!
Training Course
‘Risk Management of UV Light Exposure in the Workplace’
One day course designed to help employers meet their legal obligations for the safe use of UV light in the
workplace under The Control of Artificial Optical Radiation at Work Regulations 2010. These brought into law in
Great Britain on 27
th
April 2010 the European Physical Agents (Artificial Optical Radiation 2006/25/EC) Directive.
The Regulations define the following:
•Statutory UV light exposure limit values (ELVs).
•Minimum health and safety requirements for the protection of workers from risks arising or likely to
arise from artificial UV light exposure.
•Employers must determine personal UV light exposure levels and compare with the ELVs as a means
of assessing risk and necessary control.
•Workers must not be exposed above the ELVs and must be provided with specific information and
training.
Risk Management of UV light Exposure in the Workplace
One day course aimed at health and safety professionals and those responsible for
ensuring the safe use of UV light equipment in the workplace.
Provides a practical guide to risk assessment and control of personal UV light exposure
from artificial sources in the workplace.
Operator Information and Training
Bespoke hazard awareness training for operators of UV light equipment,
supervisors and managers.
Designed to help operators safely use UV light equipment for their particular application
and gain their confidence and acceptance.
Make sure your organisation complies and ensure the safe
use of UV light in your workplace.
for more information visit - www.uv-light.co.uk

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CONTENTS
Page No.
1
FOREWORD
4
2
HEALTH AND SAFETY HA
ZARDS
5
2.1 UV Light Exposure 5
2.2 Fire 10
2.3 Explosion 10
2.4 Electrical 10
3
BATTERY FITTING
11
4
OPERATION
11
4.1 Switching on 11
5
BATTERY
CHARGING
1
2
6
MAINTENANCE
1
3
6.1 Cleaning of Front Glass
6.2 Cleaning of Case Threads
13
13
7
TECHNICAL DATA
14
APPENDICES
Appendix 1 - Replacement Parts, Accessories, Health and Safety Products
Appendix 2 - Warranty
15
17
Copyright: All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in
any form or by any means (be it electronic, photocopying, recording or otherwise) without prior written permission from UV
Light Technology Limited, except in accordance with the provisions of the Copyright, Designs and Patents Act 1988.
Applications for the copyright holder’s written permission to reproduce any part of the publication should be addressed to UV
Light Technology Limited.

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1. FOREWORD
Operation and maintenance should only be performed by suitably qualified and trained
personnel. In order to help prevent accidents or ill health all operators and maintenance
personnel must read carefully, fully understand and follow all the instructions and warnings
contained in this manual BEFORE operation or maintenance for the first time. If you have
any questions regarding the instructions or warnings please telephone [phone].
This manual should always be readily available to all operators and maintenance personnel.
It should be prominently located in the area of usage.
The UV 3W High Output LED torch is designed for the following applications:
UV light fluorescent inspection
UV light curing of materials
UV light exposure
It MUST NOT be used for any other purpose without first consulting UV Light Technology
Limited.
Disclaimer – UV Light Technology Limited cannot accept responsibility for damages
resulting from improper use or use for any purpose other than those intended.

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2. HEALTH AND SAFETY
2.1 UV Light Exposure
Safety Classification in accordance with BS EN 62471:2008
Risk Group 3
It is recommended that our publication, Safety First with UV Light, is read in
conjunction with this section. In addition we offer a one day training course covering
risk assessment and control of personal exposure to UV light in the workplace.
Contact U
V Light Technology Limited for further details.
It is well established and generally agreed, that low level exposure to certain wavelengths of
UV light provides some health benefits, for example synthesis of vitamin D3, which improves
the body’s absorption of calcium, particularly into the bones. On the other hand, over
exposure to UV light can cause adverse health effects, such as erythema (sunburn),
photoconjunctivitis and photokeratitis (arc eye) in the short term (acute effects) and can be
attributed to premature skin ageing, skin cancer and cataracts as a result of repeated
exposure in the long term (chronic effects).
The level of risk for adverse health effects to the skin and eye from exposure to UV light
depends on the UV light wavelengths, UV light irradiance values and personal exposure time.
The key is to avoid over exposure and this necessitates the strict implementation of
exposure limit values, in order to protect against over exposure to UV light in the
workplace.
Occupational UV light exposure in Great Britain is subject to the Control of Artificial Optical
Radiation at Work Regulations 2010, which brought into law on 27
th
April 2010, the European
Physical Agents (Artificial Optical Radiation 2006/25/EC) Directive. This incorporates
statutory UV light exposure limit values (ELV’s) which are based on those defined by the
International Commission on Non-Ionising Radiation Protection (ICNIRP). It specifies the
minimum requirements for the protection of workers from risks to their health and safety
arising or likely to arise from exposure to artificial UV light during their work. Further more it
dictates that in cases of persons subjected to UV light emissions from artificial sources,
employers must determine personal UV light exposure levels and compare with the exposure
limit values as a means of assessing risks and necessary controls. Workers should not be
exposed above the exposure limit values and must be provided with specific information,
instruction and training.

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Where personal UV light exposure levels comply with the exposure limit values, the risk can
be considered low for the majority of the population and adequately controlled so far as is
reasonably practicable.
Where personal UV light exposure exceeds the exposure limit values this constitutes a
regulatory offence and additional control measures must be implemented which decrease
exposure to below the exposure limit values.
Control measures
The objective is to ensure that the UV light exposure limit values for the unprotected skin and
eye are not exceeded by any person.
This can be achieved by a combination of the following control methods: administrative and
personal protective equipment.
Emphasis should be placed on administrative control measures to minimise the need
for personal protective equipment.
Administrative control measures
a) Hazard awareness
All persons who could be exposed to levels of UV light exceeding the exposure limit
values or significant personal exposure must be provided with sufficient information,
instruction and training to understand the associated risks to their health and the
precautions which should be taken to adequately manage the risk.
Any person who notices any unusual or adverse reaction thought to be due to UV
light exposure should not be further exposed until after consulting with a suitably
qualified person.
b) Compliance with the UV light exposure limit values for the unprotected skin
and eye in accordance with the Control of Artificial Optical Radiation at Work
Regulations 2010.
The UV light exposure limit values are set below threshold levels of UV light
exposure where observable adverse health effects would occur and incorporate
significant safety margins.
They define a level of UV light exposure, below which it is believed that nearly all
individuals may be repeatedly exposed without adverse health effects.

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Some people may be unusually photosensitive, exposed to photosensitising agents,
aphakic (had an eye lens removed and not replaced by an artificial lens) or
pseudophakic (had an eye lens replaced with a non UV light absorbing artificial
intraocular lens) in which case these exposure limits may not provide adequate
protection.
The UV light exposure limits – within an 8 hour period per day are as follows:
UV light in the spectral region 180nm-400nm (UV-A, UV-B and UV-C)
maximum permissible effective radiant exposure for
the unprotected skin and eye = 30 J/m
2
eff
UV light in the spectral region 315nm-400nm (UV-A)
maximum permissible radiant exposure for
the unprotected eye = 10,000 J/m
2
It is necessary for duty holders to limit personal UV light exposure time at the
specified distances in the Table on page 5 (hazard values), to ensure that the
maximum permissible exposure values for the unprotected skin and eye are NOT
EXCEEDED within an 8 hour period per day.
The exposure limit values are derived from the ICNIRP guidelines which are based on
maximum permissible exposure values for an 8 hour working day and take into
account the daily 24 hour light/dark cycle where cellular repair can take place after the
exposure is discontinued. Therefore, in cases where continuous exposure for longer
than 8 hours is possible, for example 10-12 hour extended shifts or even double
shifts, special care needs to be taken.
The distance at which the maximum permissible UV light exposure time is equal to 8
hours is known as the Hazard Distance (HD). At this distance and beyond, the
applicable exposure limit value cannot be exceeded.
If the maximum permissible exposure values are exceeded then the UV light
irradiance must be reduced by appropriate control measures. These could include
containment, moving further away from the UV light source, reducing exposure time,
or as a last resort provision of personal protective equipment (PPE).

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Operating Instructions for UV 3W LED
Hazard Values and Hazard Distances
UV 3W High Output LED Torch
Distance from
front glass
(mm)
Maximum permissible
UV light exposure time
within an 8 hour period per day
unprotected skin unprotected eye
100
5
minutes
3
seconds
200
7
minutes
6
seconds
500
30
minutes
40 seconds
750
1.5
hours
2 minutes
1000
2 hours
4 minutes
2000
8 hours (HD)
with eye protection
16 minutes
3000
30 minutes
This data is only applicable to a UV 3W High Output LED Torch, supplied by UV
Light Technology Limited.
Maximum permissible UV light exposure times at various distances within the
beam of the UV 3W High Output LED Torch for the unprotected skin and eye in
an 8 hour period per day in compliance with the Control of Artificial Optical
Radiation at Work Regulations 2010.
c) Reflected UV light
Many surfaces, especially those that are smooth and/or highly reflective and/or light
coloured, are often good reflectors of UV light.
In a situation where a person is located behind or outside the UV light beam of the
UV 3W LED torch shining directly at a highly reflective surface, determine the
maximum permissible exposure times by using the distance from the UV 3W LED
torch to the reflective surface and back to the person. This method will automatically
introduce an additional safety margin due to reflective losses.
d) Heightened Individual Photosensitivity
Check that all persons who could be exposed to significant levels of UV light
are not unusually photosensitive or exposed to photosensitising agents.
- Individuals who are intrinsically photosensitive are normally aware of their
heightened sensitivity.

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- Individuals who are exposed to photosensitising agents, either ingested,
injected or externally applied, may not be aware of their heightened
sensitivity.
The UV light exposure limit values may not be adequate protection for photosensitive
individuals and special precautions may be necessary. These individuals should
seek medical advice with respect to additional protective measures which may be
required before any exposure to UV light.
Also check that all persons who could be exposed to significant levels of UV light are
not aphakic (had an eye lens removed and not replaced by an artificial lens) or
pseudophakic (had an eye lens replaced with a non UV light absorbing artificial
intraocular lens). These persons should be aware that they may not be adequately
protected against retinal injury from exposure to UV light within the exposure limit
values. They should seek medical advice with respect to additional protective
measures which may be required before any exposure to UV light.
These checks can be done using questionnaires.
e) Heightened Collective Photosensitivity
Particular attention should be paid to any possible photosensitising effects resulting
from workplace interactions between UV light exposure and chemical compounds
which could cause heightened collective photosensitivity.
f) Limitation of access - Access to an area where the UV 3W LED torch is
operated should be limited only to persons directly concerned with its use or those
necessary.
g) Warning labels and signs – Should be used to indicate
the presence of UV light which could result in persons
being exposed to levels of UV light exceeding the
exposure limit values, or significant personal exposure.
Personal protective equipment
a) Protection of the skin – The most effective way to protect the skin from UV light is to
cover it. The areas of skin usually at risk are the backs of the hands, forearms, face
and neck, as other areas are usually covered by clothing. The hands can be
protected by wearing gloves and arms can be covered by long sleeves, using material
with low UV light transmission. In general, darker coloured, heavier fabrics with a

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Operating Instructions for UV 3W LED
closed structure offer a higher level of protection than light coloured, light weight
fabrics with an open structure. The face can be protected by a UV blocking face
shield, available from UV Light Technology Limited and this will also provide eye
protection. Particular attention must be paid to prevent gaps in protective clothing
that commonly occur around the neck and wrist areas.
b) Protection of the eyes – We recommend that where personal UV light exposure
could be significant, all persons affected should always wear UV blocking spectacles.
These are available from UV Light Technology Limited and will ensure protection
against any residual risk.
2.2 Fire
Never operate in areas where there is a flammable atmosphere hazard.
2.3 Explosion
Never operate in areas where there is an explosive atmosphere hazard.
2.4 Electrical
The battery charger requires a 110-240V/50-60Hz power supply.
Electrical equipment is potentially dangerous and may cause death or injury if sufficient
precautions are not taken before operation or maintenance.
Never operate – if any visible damage to UV torch, battery charger, cables or connectors.
The battery should only be charged in a dry environment.
Before maintenance always disconnect the cable from the battery charger.