Introduction; Safety Warning; Features; Method Of Operation - Helvi VISION 2.1 Instruction Manual

INTRODUCTION

Your automatic welding helmet is a new generation
product for labour protection. Some new and high
sciences and technologies such as LCL, optoelectro-
nics detection, solar power, microelectronics, etc are
integrated into it. The automatic welding helmet not
only can efficiently protect operator's eyes from injuri-
es caused by arc, but also can make both hands free
and strike arc accurately. Therefore, the quality of pro-
ducts and work efficiency may be raised considerably.
It may be widely used for various welding, cutting, grin-
ding and arc gouging, etc.

SAFETY WARNING

Read and understand all instructions before using.
• Be sure that the dark shade number of the lens set in
the welding filter is the correct shade for your application.
• These helmets and lenses are not suitable for
"overhead" welding application, laser welding or laser
cutting applications.
• These welding helmets are designed to protect eyes
and face from sparks, spatters and harmful radiations
under normal welding conditions. They will not protect
against severe impact hazards. Pay particular atten-
tion when using the welding helmet for grinding.
• These welding helmets will not protect against ex-
plosive devices or corrosive liquids. Machine guards
or eye splash protection must be used when these ha-
zards are present.
• Impact resistant, primary eye protection, spectacles
or goggles that meet current ANSI specifications, must
be worn at all times when using this welding helmet.
• Avoid work positions that could expose unprotected
areas of your body to sparks, spatters, direct and/or re-
flected radiations. Use adequate protection if exposure
cannot be avoided.
• Avoid hard blows that may damage the filter.
• Check for light tightness before each use. Before each
use, check that the protection plates are clean and that
no dirt is covering the sensors on the front of the lens.
• Inspect all operating parts before each use for signs
of wear or damage. Any scratched, cracked, or pitted
parts should be replaced immediately.
• Do not make any modifications to either the welding
lens or helmet, other than those specified in this manual.
• Do not use any replacement parts either than those
specified in this manual. Unauthorized modifications
and replacement parts will void the warranty and expo-
se you to the risk of personal injury.
• If this lens does not darken when striking the arc,
stop welding immediately and contact your dealer or
service centre.
• Do not immerse this lens in water and keep it away
from dust.
• Do not use solvents on any lens or helmet's com-
ponents.
• The recommended operating temperature is -10°C
e 55°C (14°F-131°F). Do not use this device beyond
these temperature limits.
• Be sure that the arc light is received completly by
the sensors, if not, the filter will be light or unstable in
darkness. This may be dangerous to you.
• Do not disassemble the filter, any problems arising,
please contact your dealer or service centre.
• Do not leave the workplace with the welding helmet
in the lowered position; a bright light source could cau-
se the filter to darken unexpectedly.
• Failure to follow these warnings and/or failure to
follow all of the operating instructions could result in
severe personal injury.

FEATURES

The welding helmet Vision 2.1 is equipped with a fil-
ter set that can become dark. The filter is transparent
before welding, so you may observe the work surface
clearly. When striking the arc, the filter darkens auto-
matically immediately. When arc goes out , the filter
will become transparent again. The switching time
from light to dark is about 0.000625 seconds. The
switching time from dark to light may be set up within
0.1 to 1.0 seconds. The mask is equipped with conti-
nuous darkness-adjusting unit, so you may select an
arbitrary dark shade number ranging from number 9
and number 13.
The welding helmet Vision 2.1 gives you permanent
and complete protection against UV/IR even in tran-
sparent condition. The UV/IR protection level is up to
DIN16 in all time. The power is provided by solar cells,
and two AAA alkaline batteries. The mask is equipped
with 2 sets of photosensors to sense arc light. In addi-
tion, the helmet is also provided with an outer protec-
tion plate made of high polymer materials.
The plate is wear-resistant, thermostable, and has no
dregs-stricking, thus a very long service life.

METHOD OF OPERATION

Assembly

• Assembly: Assemble the helmet as shown in the as-
sembly drawing - Fig. 1

Power Supply:

• The power is provided
by solar cells with two AAA
alkaline batteries. Turning
on and off is automatically
controlled by circuit. You
can use this helmet at any
time you need and take
it away after working wi-
thout operating any key.
Using this helmet is fully
free like glass filter hel-
met.
• When the "LOW BATTERY" red pilot lamp lights up,
remove the batteries' holder cover and replace the bat-
teries immediately (Fig. 1).
• Remove the batteries if the welding mask is not ex-
pected to be used for long time.

Operating Mode

• Use the switch button on the back
of the shade cartridge to select the
appropriate operating mode, welding
or grinding.
• In the welding mode the shade
function is turned on when it optically
senses a welding arc. Select shade
level, delay time and sensitivity ac-
Batteries' holder FIG. 1
FIG. 1A
7