UV Light Technology UV 5W LED TORCH User manual

‘Safety First with UV Light’
UV 5W LED TORCH
high output 370 nm LED
Operating Manual
(including maintenance and health and safety)

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‘Safety First with UV Light’
Training Courses
Peace of mind that you’ve got risk assessment and control
covered, along with the confidence and acceptance
of your process by the workforce.
The Control of Artificial Optical Radiation at Work Regulations 2010 brought into UK law
statutory UV light exposure limit values (ELVs) for unprotected skin and eyes.
The Regulations define:
- Minimum health and safety requirements for the protection of employees from the risks arising
from UV light exposure.
- Employers must determine personal UV light exposure levels and compare with the ELVs as a
means of assessing risk and necessary controls.
- Employees must not be exposed above the statutory ELVs and must be provided with protection
and UV hazard awareness training.
To help you comply with these regulations and ensure the safe use of UV light in your
workplace, we offer the following training courses. These are designed to help you meet your
legal obligations for compliance with UV light personal exposure limits and specific hazard awareness
training for employees.
Risk assessment and control of personal UV light exposure
One day course providing information to help persons responsible for risk
assessment and safe use of UV light equipment, welders and plasma cutters in
your workplace.
Hazard awareness training
Bespoke information and training for operators, supervisors, maintenance
personnel and managers of UV light equipment, welders and plasma cutters.
Designed to help ensure safe use for your particular application.
Usually conducted on-site and consisting of two hours practical training.
To sign up please contact our sales department

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3
CONTENTS
Page No.
1
OptiMinUV
®
- Optimizing your Process – Minimizing the Risk
4
2
Product Description
5
3
Health and Safety
6
3.1 UV light exposure 6
3.2 Fire 11
3.3 Explosion 11
3.4 Electrical 11
4
Operation
12
4.1 Battery installation
12
4.2 Switching on 12
4.3 Battery charging
4.4 Disposal of waste batteries, electrical and electronic equipment
13
14
5
Maintenance
15
5.1 Cleaning of front glass
5.2 Cleaning of case threads
5.3 UV light irradiance measurement for process control
15
15
15
6
Technical Data
16
Appendices
Appendix 1 - Spares and accessories, process control, health and safety
products and training
Appendix 2 - Warranty
17
19
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. Issue No. 4/15

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1 OptiMinUV
®
- Optimizing your Process – Minimizing the Risk
The UV 5W torch is supplied as an individual product or as part of an OptiMinUV
®
solution
which also includes:
•UV meter for process control
•Health and safety products
•Training course - ‘Safety First with UV Light’
The training course is designed to help you meet your legal obligations for compliance with
personal UV light exposure limits and specific hazard awareness training for employees. The
result is peace of mind that you’ve got performance, risk assessment and control covered,
along with the confidence and acceptance of the process by your workforce.
OptiMinUV
®
is the ‘Gold Standard’ which guarantees optimum performance, easy
implementation and compliance with Health and Safety Regulations. This provides peace of
mind that performance, risk assessment and control is covered, along with the confidence and
acceptance of the process by the workforce.

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2 Product Description
The UV 5W LED torch includes re-chargeable battery, spare re-chargeable battery, battery
charger (mains and car) and pouch. It 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.
To help prevent accidents or ill health all operators and maintenance personnel must read,
fully understand and follow all the instructions and warnings contained in this manual
BEFORE operation or maintenance. It should always be readily available and prominently
located in the area of usage. If you have any questions please telephone [phone]
2000.
Due to our policy of continuous product development, we reserve the right to amend
specifications and technical data, therefore information in this manual may be subject to
change without prior notice.
Spares and accessories
Process control and health and safety products
Re
-
chargeable Battery
Additional lithium-ion battery
to ensure a fully charged
battery is always available.
Battery Charger
Spare battery charger to avoid
unnecessary delays due to loss
or accidental damage
Belt pouch
(NATO Loop)

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3 Health and Safety
Under the Health and Safety at Work etc. Act 1974 and the Management of Health and Safety
at Work Regulations 1999, it is necessary to assess the health and safety risks associated
with work activities affecting employees and non-employees and take measures to control
these risks as far as is reasonably practicable.
The following health and safety hazards should be assessed: UV Light Exposure, Fire,
Explosion and Electrical. Details are provided in sections 3.1 to 3.4.
3.1 UV light exposure
Safety
Classification in accordance with BS EN 62471:2008
Risk Group 3
Warning - UV emitted from this product
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 risk for adverse health effects to unprotected skin and eyes from UV light exposure
depends on the wavelengths, irradiance levels and personal exposure time.
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). The Regulations define:
- Minimum health and safety requirements for the protection of employees from the risks
arising from UV light exposure.
- Employers must determine personal UV light exposure levels and compare with the
ELVs as a means of assessing risk and necessary controls.
- Employees must not be exposed above the statutory ELVs and must be provided with
protection and UV hazard awareness training.
The ELVs 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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The ELVs – within an 8 hour period per day are as follows:
Maximum permissible effective radiant exposure to
UV light in the spectral region 180nm-400nm (UV-A, UV-B and UV-C)
for unprotected skin and eyes = 30 J/m
2
eff
Maximum permissible radiant exposure to
UV light in the spectral region 315nm-400nm (UV-A)
for unprotected eyes = 10,000 J/m
2
The ELVs 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.
Where personal UV light exposure levels comply with the ELVs, 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 ELVs this constitutes a regulatory offence and
additional control measures must be implemented which decrease exposure to below the
ELVs.
Control measures
The objective is to ensure that the ELVs for unprotected skin and eyes are not exceeded by
any person. This should be achieved by a combination of the following control measures:
administrative, engineering, personal protective equipment. Emphasis should be placed on
administrative and engineering control measures to minimize the need for personal protective
equipment.
All persons who could be exposed to levels of UV light exceeding the ELVs or
significant personal exposure must be provided with sufficient information and training
to understand the associated risks to their health and precautions which should be
taken to adequately manage the risk.
Administrative control measures
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.
It is essential that the following information regarding the UV bulb and UV black filter glass is
fully understood and complied with.

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Compliance with UV light exposure limit values for unprotected skin and eyes defined
by The Control of Artificial Optical Radiation at Work Regulations 2010
The ELVs, combined with UV light spectral irradiance measurements for the UV torch have be
used to calculate maximum permissible UV light personal exposure times (MPEs) at defined
positions. These are known has hazard values and are provided below.
Hazard Values
Distance from
front glass
(mm)
Maximum permissible
UV light exposure time
s
within an 8 hour period per day
unprotected skin unprotected eye
100
2.
5
minutes
1.5
seconds
200
3.5
minutes
3
seconds
500
2
0
minutes
3
0 seconds
750
1 hour
2 minutes
1000
2 hours
4 minutes
2000
8 hours (HD)
with eye protection 16 minutes
3000
30 minutes
Only applicable to a UV 5W LED torch, supplied by UV Light Technology Limited.
UV light irradiance measurements used to produce the hazard values above were taken in the
centre of the beam where UV light irradiance is highest. Therefore, for exposures towards the
edges of the beam, an extra safety factor is built in due to reduced UV light irradiance levels.
Where a person is located behind or outside the UV light beam shining directly at a reflective
surface, determine the MPEs by using the distance from the front glass to the reflective surface
and back to the person. This method will automatically introduce an additional safety margin
due to reflective losses.
Alternatively, using our UV meter, calculate a reflective loss correction factor to use with the
hazard values above. This method is covered during our training course - ‘Safety First with UV
Light’.
The distance at which the MPE is equal to 8 hours is known as the Hazard Distance (HD),
beyond which the exposure limit value cannot be exceeded.

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It is necessary for duty holders to limit personal UV light exposure to below MPEs for
unprotected skin and eyes.
All persons must be aware of and comply with the MPEs for the unprotected skin and eyes
where less than 8 hours.
If MPEs are exceeded then 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).
Heightened individual photosensitivity
All persons must be aware that their individual susceptibility to UV light exposure can be
heightened by photosensitising agents.
Check that all persons who could be exposed to significant levels of UV light are not unusually
photosensitive or exposed to photosensitising agents, including:
- Individuals who are intrinsically photosensitive.
- Individuals who are exposed to photosensitising agents, either ingested, injected or
externally applied.
- Very rare cases - aphakics (eye lens removed and not replaced by an artificial lens) or
pseudophakics (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 ELVs.
The ELVs 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.
Heightened collective photosensitivity
Check for any possible photosensitising effects from contact with chemical compounds in the
workplace.
Limitation of access - Access to an area where the UV torch is operated should
be limited only to persons directly concerned with its use or those necessary.

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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 ELVs, or significant personal exposure.
Routine maintenance - Essential to ensure optimum performance and minimum risk. The
recommended procedures and intervals should be strictly implemented. See section 5.
Engineering control measures
Reduction of reflected UV light – Many surfaces, especially smooth, highly reflective or light
coloured, are good reflectors of UV light. To reduce reflected UV light some surrounding area
surfaces could be painted in a dark matt colour.
Containment – Indiscriminate emission of UV light into the workplace must not be allowed.
The use of screened areas may be appropriate. If used screens must be made of a suitable
UV blocking material, well maintained, inspected regularly and replaced as necessary.
Personal protective equipment
Protection of the skin - Areas of skin usually at risk are the backs of the hands, forearms, face
and neck, as other areas are usually covered by clothing. 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 closed structure offer a higher level of
protection than light coloured, light weight fabrics with an open structure.
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.
Protection of the eyes - We recommend that where personal UV light exposure could be
significant, all persons affected should always wear UV blocking spectacles or faceshield.
These are available from UV Light Technology Limited and will ensure protection against any
residual risk.