ESAB A20 User manual

A20 / A30
Automatic
Welding Helmet

1
Professional Quality
Welding Helmet
SAFETY WARNINGS - READ BEFORE USING
WARNING
Read & Understand All Instructions Before Using
Auto-Darkening welding helmets are designed toprotect the eye and facefromsparks, spatter
and harmful radiation under normal welding conditions. Auto-Darkening filter automatically
changes from light state to dark state when welding arc is struck, and it returns to the light
state when welding stops.
The Auto-Darkening welding helmet comes assembled. But before it can be used, it
must be adjusted to fit the user properly. Set up for delay time, sensitivity and
shade number for your application.
The helmet should be stored in dry, cool and dark area and remember to remove
the battery before long-time storage.
WARNING
ThisAuto-Darkening welding helmet is not suitable for laser welding.
Never place this helmet andAuto-Darkening filter ona hot surface.
Never open or tamper with the Auto-Darkening filter.
ThisAuto-Darkening welding helmet will not protect against severe impact hazards.
This helmet will not protect against explosive devices or corrosive liquids.
Do not make anymodifications to either the filter or helmet, unless specified in this manual.
Do not use replacementparts otherthan thosespecified in this manual. Unauthorized
modifications and replacement parts will void thewarranty and expose the operatorto the risk
of personal injury.
Should this helmet not darken upon striking an arc, stop welding immediately and contact
your supervisor or your dealer.
Do not immerse the filter in water.
Do not use any solvents on the filter screen or helmet components.
Use onlyat temperatures: - 5 °C~ +55 °C (23 °F ~ 131 °F).
Storing temperature: -20 °C ~ +70 °C (- 4 °F ~ 158 °F). The helmet should be stored in dry
cool and darkarea, when not using it for a longtime.
Protect filter from contact with liquid and dirt.
Clean the filter surface regularly; do not use strong cleaning solutions. Always keep the
sensors and solar cells clean using a clean lint-free tissue.
Regularlyreplace thecracked/ scratched/ pitted front cover lens.
The materials which may come into contact with the wearer’s skin can cause allergic
reactions in some circumstances.
The ADF shall only be used in conjunction with the inner cover lens.
The eye-protectors against high speed particles worn over standard ophthalmic
spectacles may transmit impacts, thus creatinga hazard tothe wearer.
Toughened mineral filter oculars shall only be used in conjunction with a suitable backing
ocular.
If the symbols F or B are not common to boththe ocular and theframethen it is the lower
level which shall be assigned to the complete eye-protection.

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INSTRUCTIONS FOR USE
WARNING! Before using the helmet for welding, ensure that you have read and understood the safety
instructions.
Information manual for the A20/A30 welder protective helmets complywith Para 1.4 of
Appendix II of the EC Regulations.
A20/A30 helmets offer permanent protection againstUV/IR rays, also face and eye
protection from sparks caused bythe welding process.
Do not look directlyat the welding rays with unprotected eyes when the arc strikes. This can
cause painful inflammation of the cornea and irreparable damagetothe lens ofthe eye
leading to cataracts.
RANGE OF APPLICATION
WARNING! Before using the helmet for welding, ensure that you have read and understood the safety
instructions.
ESAB welding helmets and welding filters canbe used for themajority of the arcwelding
applications and for TIG where stated. The welding filters provide protection against harmful
UV- and IR-radiation according to the requirement for shade number marked on each passive
of automatic (ADF) model; eye protection remains as long asthe flip upis in the down position
covering the vision.
The following chart is presented as a reference for the selection of the most suitable shade for
the welding filter:
Depending upon the applicationconditions, thenext highest ornext lowest protection level can
be used.
The darker fields correspond to those areas in which the corresponding welding process
cannot be used.
The ESAB A20/A30 welding helmets are suitable, but not limited to the following applications:
AC/DC pulses
Inverters WIG/TIG
Stick welding
Argon/Helium
MIG/MAG protective gas electrodes

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PREPARATION & OPERATION
ESAB A20/A30welding helmets are fullyassembled and readyto be usedafterminor
adjustments. Allweldinghelmets are equipped with acomfortable headgear that can be
adjusted in four different ways:
Install headgear byremoving threaded knobs(one at a time)and fasten again after placing
each threaded stud through the larger holes on the sides of the helmet. Rotate the adjustment
knob at therear of the headgear assemblyto fit the users head.
Before commencingworkplease inspect carefullythe welding helmet and ADF for anyvisible
marks, cracks, pitted or scratched surfaces; damaged surfaces even on protection plates
reduce vision impair protection. If protection plates are scratched, damaged or built up with
spatter please replace.
Welding helmets should not be dropped. Do not place heavy objects or tools on or inside the
helmet as they might damage the components. If used properly the welding filter requires no
further maintenance during its lifetime.
SERVICING AND MAINTENANCE
Only clean the A20/A30 with mild soap and water. Dry with a clean cotton cloth.
Please note the use of solvents is strictly prohibited, as theywill damage the mask and filters.
Scratched or damaged visorsmust always be replaced.
The usermust make dailyregular checks to ensure no damage is evident. Outer andInner
Visors areconsumables and must be replaced regularlywith genuine certified ESAB spare
parts.
We recommend a use period of2-3 years.The duration of use depends onvarious factures
such as use, cleaning, storageandmaintenance. Frequency of inspections and replacement

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of damaged parts (which is recommended)
REPLACING THE OUTER LENS
1. Ensure that the helmet isalways fitted with an outer and inner protectionlens
2. These protection lenses must be replaced if broken, damaged orcovered with welding
spatter to the extent that vision is impaired.
3. Outer and Inner protection lenses are consumables and must be replacedregularly with
genuine certified spare parts.
4. The outer protection lensis loaded though theback, see above illustration.
5. The inner lens is loaded through back into the locaters on the auto darkening filter.
Protectionmarked in accordance withthisstandard is onlyprovided when all lens and
retention components are installed according to the list of manufactures instructions
6. Change dark shade from 9 to13 and grind mode as desired by using thevariable
adjustment knob. Refer to Table1 below if necessary.
7. Adjust the Sensitivityand Delay Time as desired by using thevariable adjustment knob
8. When the helmet is not used for 15 minutes the power will automatically shut-off. There
is no OFF switch.

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ADF MARKING
CE 4/9-13 ESAB 1/1/1/2/379 EN379
4 - light state scale number
9 - lightest dark state scale number
13 - Darkest state scale number
ESAB - Manufactures identification
1 - Optical class
1 - Diffusion of light class
1 - Variation in luminous transmittance class
2 - Angle of Dependence classification
379 - Number of the standard
Helmet Marking Explaination
EN175 B
EN175 –Is the stanard number
B –Is medium energy impact rating
Cover lens markings
EN166 1 B
TROUBLE SHOOTING
1. Not Switching –autolens stayslight and will not darken when welding.Stop
welding immediately: Reviewthe sensitivityrecommendations and adjust
sensitivity. Clean Lens cover and sensors of any obstructions. Note! Making
sure the sensorsare clean and facing the arc; angles of 45°or more any not
allowthe arclight toreach the sensors.
2. Not switching –auto lens stays dark after the weld arc is extinguished, or the
auto-lens stays dark when no arcis present.
Fine-tune the sensitivity setting by making small adjustments to the control by
turning it toward the ‘Lo’ setting. In extreme light conditions, it may be necessary
to reduce the surrounding light levels.
During testing or using,in case of anymalfunction, please suspendusing it and
contact the local sales agent.

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PARTS LIST & ASSEMBLY A20 & A30
Part List
ITEM
DESCRIPTION
PART NO.
*
A20 Helmet Complete
0700 000 720
*
A30 Helmet Complete
0700 000 730
1
Headgear A20
0700 000 721
2
Headgear A30
Irregular with longest and widest dimension: 163x54mm
0700 000 731
*
Sweatband A20& A30
0700 000 722
3
Front Cover Lens A20 & A30
0700 000 724
4
Inside Cover Lens A20
0700 000 723
4
Inside Cover Lens A30
0700 000 733

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TECHNICAL DATA A20 / A30
◎Viewing Field
A20 –96 x 39mm & A30 - 100 x 45 mm
◎OpticalClass
1/1/1/2
◎Shade Control
Light States: DIN 4
Dark States: DIN 9 –13 Outside adjustment
◎Switching Time
Light - Dark: 0.3 ms
◎Delay Time
Dark - Light: 0.1 –0.8 sec
◎Sensitivity & Delay Time
Step less adjustment
◎UV/IR Protection
Up to Shade DIN16
◎Operating Temperature
- 5 °C ~ +55 °C (23 °F ~ 131 °F)
◎Power Supply
Solar cells assist, Inside Lithium Batteries
◎Lens Control
Auto-on, Auto-off 15 minutes (when not on welding)
◎Standards
CE : EN379:2009; EN175:1997
◎Helmet Material
PA
◎Grind Mode
A30 only (not applicableto A20)
◎TotalWeight
470g

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CERTIFICATION & CONTROL LABELS
The A20 & A30 welding filters aretested foreye protection by thefollowingnotified body: ECS
GmbH - European Certification Service Augenschutz und Persönliche Schutzausrüstung
Laserschutz und Optische Messtechnik
Test lab accredited byDAkkS D-PL-19590-02-00
Notified bythe Central
Authority of the Federal States
for Safety Technologies (ZLS)
ZLS-NB-0156
We are therefore allowed to use the following marks:
European Conformity mark.
This confirms that the
product fulfils the
requirements of the Directive
89/686/ EWG
EN379, EN175B,
EN166 B
ESAB AB
Lindholmsallén 9
Box 8004
402 77 Gothenburg
Sweden