100243
Auto-Darkening
Welding Helmet
User Manual
Axminster Devon EX13 5PH UK
01297 33656
(International Dialling +44 1297 33656)
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100243
100243
Auto-Darkening
Welding Helmet
2001
Part No. 100243
02
15
Index of Contents
Notes
Page No.
Index of Contents..............................................................................................................................................2
Declaration of Conformity………….………........……..………….................................................................. 2
What’s in the Box………….………........……..………….................................................................................... 3
General Instructions for 230v Machines......................................................................................3,4
Specifications….………........……..…………...................................................................................................5
Parts Identification and Description................................................................................................6
Illustration and Parts Description..............................................................................................7,8,9
Using the Auto-Darkening Welding Helmet..................................................................................10
Operating Instructions....................................................................................................................11
Shade Guide Table........................................................................................................................ 12
Illustrated Parts Catalogue and Parts Breakdown........................................................................13
Notes......................................................................................................................................... 14,15
Declaration of Conformity
Copied from CE Certificate
The undersigned, Dr. Geaz authorised
by Taian Chiran Machinery Co.,Ltd.
Taian, Shandong, P.R. China
declares that this product:
Solar Battery Auto-Darkening Welding Helmet
SZ-AST
manufactured by Taian Chiran Machinery Co. is in compliance with the following
standards or standardisation documents in accordance with Council Directives
EN 50081-1 /1992: EN 55022
EN 50082-1 /1997: EN 55024 (EN 61000-4-2/-3)
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03
Notes
What’s in the Box
Quantity
Item
Model Number
1 No.
Welding Helmet with Auto-Darkening Filter
1 No.
Instruction Leaflet
1 No.
Guarantee Card
SZ-AST
Having unpacked your Welding Helmet, please dispose of any unwanted packaging properly.
The packaging is biodegradable.
General Instructions for 230v Machines
Good Working Practices/Safety
The following suggestions will enable you to observe good working practices, keep yourself and
fellow workers safe and maintain your tools and equipment in good working order.
!
WARNING!!
KEEP TOOLS AND EQUIPMENT OUT OF THE REACH OF
YOUNG CHILDREN
Primary Precautions
Most small single phase equipment is supplied with a moulded 13 Amp. Plug and 3 core power cable.
Before using the equipment inspect the cable and the plug to make sure that neither are damaged. If any
damage is visible have the equipment inspected/repaired by a suitably qualified person. If it is necessary to
replace the plug, it is preferable to use an 'unbreakable' type that will resist damage on site. Only use a 13
Amp plug, and make sure the cable clamp is tightened securely. Fuse as required. If extension leads are to
be used, carry out the same safety checks on them, and ensure that they are correctly rated to safely supply
the current that is required for your machine. The same general precautions apply to 'portable' 3 phase
equipment.
Work Place/Environment
Most equipment is not designed for outdoor use, do not use when or where it is liable to get wet. If the
equipment is to be used outside and it starts to rain (unusual though this would be in U.K.), stop work and
move it inside. If equipment has got wet; dry it off as soon as possible, with a cloth or paper towel. Do not
use 230Va.c. powered equipment anywhere within a site area that is flooded or puddled, and do not trail
extension cables across wet areas. Keep the equipment clean; it will enable you to more easily see any
damage that may have occurred. Clean equipment with a damp soapy cloth if needs be, do not use any
solvents or cleaners, as these may cause damage to the any plastic parts or to the electrical components.
Keep the work area as uncluttered as is practical, this includes personnel as well as material.
!
Under no circumstances should CHILDREN be allowed in work areas.
It is good practice to leave the equipment unplugged until work is about to commence, also make sure to
unplug the equipment when it is not in use, or unattended. Always disconnect by pulling on the plug body
and not the cable. It is also recommended that you use switched outlet supplies.
Make sure you are comfortable before you start work, balanced, not reaching etc.,
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13
General Instructions for 230v Machines (Continued)
Wear the appropriate safety clothing, goggles, gloves, masks etc., consideration should be
given to the removal of rings and wristwatches, if these are liable to be a 'snag' hazard. It you
are working in an area or on a task that requires the movement of heavy objects, make sure you
have 'toe protecting non-slip footwear', etc.
DO NOT use mains powered equipment within the designated safety areas of flammable liquid
stores or in areas where there may be volatile gases. There are very expensive, very specialised
machines for working in these areas.
Above all, OBSERVE…. make sure you know what is happening around you, and USE YOUR
COMMON SENSE.
General precautions for welding operations
!
Ensure you have fire extinguishers readily available.
If you are welding in a booth or permanent enclosure, be aware that noxious fumes can be
generated, ensure that it is well lit and there is adequate ventilation, if heavy amounts of fumes
are being produced, forced air ventilation or a respirator is required.
If you are using a mobile enclosure follow the same guide lines.
Ensure you are using the correct 'stick' or wire size and type for the welding you are carrying
out.
Illustrated Parts Catalogue and Parts Breakdown
No
Description Unit
QTY
Supplied as Spare
Part Number
1
Front lens retainer
1
10024301
2
Front cover lens
1
10024302
3
Auto-Darkening welding filter 1
4
Helmet
1
5
Headgear nut
1
6
Positioning washers
2
7
Positioning washers
2
8
Limitation washers (R&L)
2
9
Positioning washers
2
10
Bolts
2
11
Front headband
1
12
Adjustable headband
1
13
Dark shade adjusting knob
1
1002430510
1002431112
If you are using compressed gas (of any description) exercise caution when handling the
cylinders, do not open or 'crack' cylinders using in-appropriate tools. Check cylinders for fault
leaks and if flammable gas or oxygen, isolate and quarantine the cylinder, and allow to 'bleed'
out or arrange expert disposal.
If you are using flammable gas, you must have non-return valves fitted.
Have pressure gauges checked and, if necessary, recalibrated regularly
Check all hose lines for leaks. Leaks are not so much a problem with IG's but can be expensive
if not corrected, or, if the leak is severe and insufficient gas is arriving at the nozzle to flood the
weld area, severe oxidisation can occur, ruining the weld.
Arc Welding
If you are electro-welding, do not be tempted to 'over cook' by turning the current up too high.
Ensure that you have adequate eye protection.
Ensure that you are wearing the correct protective clothing, overalls, gloves, etc.,
DO NOT weld 'overhead' without the upper part of the body, hands and wrists and your head
adequately protected.
Ensure you have established a good solid current return for your workpiece. Secondary arcs
and flashes can ruin a job.
If you are welding in an area populated by other workers and do not have a mobile enclosure;
have the courtesy to establish an alert, calling “Eyes,………Arc,……….Striking,……….” or
similar to forewarn colleagues that an unshielded arc is about to be struck.
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05
Shade Guide Table
Specification
Axminster No:
Overall Size:
Height:
Depth:
Width:
Weight:
Filter Size:
Viewing Aperture Size:
Ultraviolet Frequency Protection:
Infrared Frequency Protection:
Dark Shade Range (DIN):
Light Shade No:
Switching Time to Dark:
Recovery Time to Clear:
Power Source:
Eye Protection Standard:
Face Protection Standard:
Auto Power On/Off:
Working Ambient Temp Range:
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100243
132mm
147mm
85mm
420g
110mm x 90mm x 9mm
98mm x 40mm
313-365 nM < 3.4 x 10¯6 %
780-1300nM < 0.0027%
1300-2000nM <0.0097%
9-13
3
100µS
0.6 S
Internal solar cells
EN 379 1/2/1
EN 175
Yes
-5˚C ~ +55 ˚C
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Parts Identification and Description
Helmet
Auto-Darkening
Lens Filter
A light-weight full face covering moulding, with a specifically moulded
aperture to accept the lens/auto-darkening unit, and fixing points for the
head strap assembly.
A totally self contained, electro-optical unit that is fitted into the helmet. It is
not repairable, and the only changeable item is the front protection lens that
protects the unit lens proper.
Front Protection A clear plastic changeable lens which protects the auto-darkening lens filter.
Lens
Change this lens when it becomes badly scratched,badly discoloured or
damaged.
Front Protection A clip frame that holds the front protection lens in place.
Lens Retainer
Solar Cell Array
Sensors
Dark Level
Adjusting Knob
This is the power source for the helmet. The cells will pick up any sunlight
as well as the u/v generated during the welding process to generate the
power required for the helmet operation. Keep the front panel of the array
clean to allow optimum operation of the cells. The expected operational life
of the cells under normal conditions is in excess of 4000 hours.
Two small photo-electric sensors, located in the front face of the helmet; I
know, I know, they would be pointless mounted in the back of the helmet.
These sensors detect the rapid increase in light o/p from the struck arc, and
initiate the darkening of the screen.
This knob allows you to set the dark level of the helmet to between 9-13
(DIN), depending on the requirement for the job in hand; obviously, the
higher the light intensity generated by the arc, the higher the setting
required.
Welding Mode
Normally the selection switch will be pushed over to the right hand side. This
Selection Switch covers most welding applications, MMA, MAG, MIG and TIG where the
working current of the operation is greater than 20 Amps. For lower current
TIG operation the switch should be pushed to the left hand side. This brings
the 'Clear level adjusting knob' into operation, and allows you some control
over the 'switch point' at which the screen will darken.
0perating Instructions
It is assumed you will have set up the job and the welding equipment.
Exposing the solar cells/sensors to light will have switched the filter unit On.
Check the selector switch is in the correct position for the welding you are about to carry out.
Check the dark level control is set correctly. (If you are unsure about the level setting; there is a
chart with suggested settings on the following page. If you are still unsure, always set to the
darkest level and reduce the setting to optimum by trial and error).
Check the front protective lens cover is clean and relatively undamaged, (scratches, cracks,
spatter patterns, fume discolouration etc.,) if the screen is too damaged/dirty; change it.
Remember, it is not only obscuring your view of the weld, it is preventing full light falling on the
solar cells and the sensors.
Put the helmet on and adjust the head strap and the side friction clamps to suit.
Pull the shield down in front of your face, you should be able to see clearly through the
aperture, strike and the lens should darken immediately. If it does not:a) Check the switch settings are correct,
b) Expose the solar cells to a light source for a few moments (directly against a lamp
or out in the sun light), on the chance that the power pack is depleted.
Recheck the function. As soon as the arc is struck, the lens will darken, check that your eyes
feel comfortable with the dark level you have selected, if not, reset. Proceed with the welding,
check that when the arc is off, the lens clears allowing you clear sight of the workpiece.
When you have finished welding remove the helmet, (DO NOT PUT DOWN ON THE HOT
SURFACE) and place face down. (This will switch the electronics Off).
DO NOT use the helmet if the lens unit is inoperative.
Hints and Tips
Note the switch must be in the right hand side position to activate the
'auto-off' function.
Clear level
Adjusting Knob
This knob allows you to set the level to which you require the screen to
'lighten' to allow you to see the work, prior to and immediately after welding.
It is only active during the low current selected function. Very useful if you
are working with light current on a highly reflective material ( e.g. stainless
sheet) under strong ambient or artificial light. The recommended setting is
JUST the bright side of the 'switch point'. If you have the control set to 'too
bright' the helmet can have difficulty judging the 'switch point' and may not
respond quickly enough to protect your eyes. Take Heed.
The unit can be stored in a dry, well ventilated environment between -20˚C ~ +70˚C.
DO NOT store in direct sunlight.
Keep the front protective lens cover clean.
If you require to clean the front of the solar array and the lens unit proper, use a clean lint free
cloth, or lens tissue.
DO NOT use solvents or chemicals on any part of the helmet or the lens unit.
DO NOT immerse the lens unit in any liquid.
Adjustable
Head Strap
A composite plastic head strap assembly, anchored to the helmet. The side
'anchoring knobs' can adjust the friction level controlling the helmet
movement according to your personal preference. The rear 'turnbuckle' knob
allows the head strap to be set to your hat size, or tightened onto your head
as preferred.
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The lens unit is not repairable.
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07
Using the Auto-Darkening Welding Helmet
Illustration and Parts Description
General overview
This helmet is a light weight piece of apparatus, designed to provide adequate eye protection
during arc welding operations. This protection is achieved by electronically causing the optical
lens to rapidly obscure. The obscuration is triggered and maintained whilst the controlling
sensors are subjected to extreme bright light. When the light source is removed, the lens will
return to a 'clear' state so that the task can be viewed. This precludes the necessity of constantly
lifting the visor of the helmet, or removing it. As this could tend to lead to the helmet being worn
for lengthy periods of time, the whole was made as 'light weight' as possible. This light weight
construction is achieved at a cost to 'robustness' which means that you may not wear the
helmet in place of a site 'hard hat'. Neither is the helmet to be used in place of adequate eye
protection when grinding.
Solar Cell Array
The helmet electronics have an auto On/Off system. This is activated when the solar
cells/sensors are shielded or exposed to 'light'. The selector switch should be pushed to the
right hand side.
Typ.2 side anchoring knob
Selector
Switch
Helmet
Lifting the helmet up should switch it on. When work is finished, the helmet should be placed
'face down' or in a box or cupboard that prevents light falling on the solar cells/sensors. This will
switch the helmet off.
Sensors
Dark level adjusting knob
Auto-Darkening lens filter
Note The helmet does not provide adequate protection against LASER light frequencies.
Front protection lens
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Front protection
lens retainer
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08
09
Illustration and Parts Description (Continued)
Illustration and Parts Description (Continued)
Clear level adjusting knob
Rear turnbuckle knob
This allows you some control
over the ‘switch point’ at which
the screen will darken.
Head strap
Auto-Darkening lens filter
Welding mode selection switch
Inside view of welding helmet
For lower current TIG operation push the
switch to the left hand side. This brings the
‘Clear level adjusting knob' into operation.
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