Telwin T-VIEW 180 Manuel D'instructions page 5

ENGLISH
1. GENERAL SAFETY FOR HELMET USE AND PROFESSIONAL AND INDUSTRIAL USE .. 5
2. INTRODUCTION AND GENERAL DESCRIPTION ............................................................ 5
3. TECHNICAL SPECIFICATIONS ........................................................................................ 5
3.1 TECHNICAL SPECIFICATIONS OF FILTER TW-V180 ......................................................................5
3.2 MARKING ..................................................................................................................................................5
3.2.1 MARKING ON FILTER ..................................................................................................................5
3.2.2 MARKING ON HELMET .............................................................................................................. 5
3.2.3 MARKING ON TRANSPARENT EXTERNAL GUARD TW B CE ..........................................5
3.2.4 MARKING ON TRANSPARENT INTERNAL GUARD TW 1 B CE ........................................5
4. DESCRIPTION ................................................................................................................. 5
4.1 HELMET AND MAIN COMPONENTS ASSEMBLY (Fig. A) ...........................................................5
4.2 HELMET ADJUSTMENTS (Fig. B) ........................................................................................................5
4.2.1 Adjustment of the perimeter strap (Fig. B-1) ....................................................................5
WELDING HELMETS WITH AUTOMATIC DARKENING FILTER.
NB: In the text that follows, the term "helmet" and "filter" will be used.
1. GENERAL SAFETY FOR HELMET USE AND PROFESSIONAL AND INDUSTRIAL USE
The operator must be sufficiently trained on safe use of the welding machine and
informed on the risks relating to arc welding procedures, the relevant safety measures
and the emergency procedures.
• During welding, luminous radiation emitted by the electric arc
can damage eyes and burn skin; furthermore, welding produces
sparks and drops of molten metal can be projected in all
directions. It is therefore necessary to use the safety helmet to
avoid physical injury, which may even be serious.
• Avoid the welding helmet catching fire, for any reason, as the fumes produced are
harmful to eyes and, if inhaled, for the body.
• The material composing the complete helmet is free of hazardous substances and
does not present any risk for man or the environment.
• Regularly check the condition of the helmet and the filter:
- Before each use, check correct positioning and fastening of the filter and the
protective plates which must be exactly in the space described.
- Keep the helmet far from flames.
- The helmet must not be too close to the welding area.
- In prolonged welding, every now and then check the helmet for any deformations
or wear.
- For particularly sensitive people, the materials that come in contact with the skin
could cause allergic reactions.
• This automatic darkening helmet is only certified to protect the face and eyes from
harmful ultraviolet and infra-red radiation, from sparks and welding sprays; it is not
suitable for laser welding and oxy-acetylene welding and cutting or to protect the
face from explosions or corrosive liquids.
• Only replace helmet parts with others specified in this manual. Non-compliance
with this regulation can expose the operator to health risks.
• If the helmet does not darken or presents functionality problems, refer to the
TROUBLESHOOTING chapter; if the problem persists, immediately stop using the
helmet and contact your supervisor or distributor.
• Do not immerse the filter in water or other liquids; do not use solvents to clean the
filter or the protective plates.
• Use the helmet only at temperatures: -5°C (+23°F) ÷ +55°C (+131°F).
• Store the helmet only at temperatures: -20°C (-4°F) ÷ +65°C (+149°F).
• Protect the filter and the protective plates from contact with liquids and dirt.
• Do not open the filter container.
• Never use the helmet without the internal or external transparent protective plates
of the filter.
• Check compatibility of the protective plates of the filter and the helmet: both should
be marked with the same impact resistance symbol against high speed particles, in
this case F. If the marking symbols are not common to both, the protective plates
of the filter and the helmet, then the lowest protection level of the helmet-filter
assembly should be used.
• The eye protection against high speed particles worn over standard glasses can
produce impact, thereby creating hazards for those who wear them.
• Do not use spare parts other than original TELWIN parts.
Unauthorised modifications and replacement with non-original parts will void the
warranty and expose the operator to the risk of personal injury.
• Remember to use the helmet, the automatic darkening filter and the relevant
protective plates for a maximum of 2 years. The duration of these items depends
on various factors such as the frequency of their use, cleaning, storage and
maintenance. You are advised to frequently inspect and replace if damaged.
PRECAUTIONS
To protect the user's safety and ensure the welding automatic darkening filter works
properly, read these instructions carefully and consult a qualified instructor or
supervisor before starting work.
• These filters and protection plates can be used in all welding processes, with the
exception of oxy-acetylene welding and laser welding.
• The light protection plate in standard polycarbonate must be applied on both sides
of the filters.
• Non-use of the protection plates can be hazardous for safety or cause irreparable
damage to the automatic darkening filter.
• Use is planned of the helmet in the "GRIND" position (where present) exclusively for
grinding.
2. INTRODUCTION AND GENERAL DESCRIPTION
The "TW-VIEW" model helmet is composed of a TW-V180 filter; furthermore, it is composed
of transparent front internal and external guards.
The helmet was designed to guarantee correct eye protection during welding, as well as
providing the maximum performance both in facilitated assembly and the convenience and
quality of use: it guarantees permanent protection against UV and IR radiation and sparks
generated during the arc welding process.
3. TECHNICAL SPECIFICATIONS
3.1 TECHNICAL SPECIFICATIONS OF FILTER TW-V180
- Overall measurements:
- Filter protection plates:
- Visual area:
- Luminous state:
300x50-130mm
front 396x152mm
Central internal 118x89.2mm
Side internal 84x70mm
Central filter: 115x85mm, Side filters: 68x35-80mm
gradation 3 DIN
INDEX
page
4.2.2 Adjustment of the perimeter strip height (Fig. B-2)....................................................... 6
4.2.3 Adjustment of the distance between the face and filter (Fig. B-3) ........................... 6
4.2.4 Adjustment of inclination (Fig. B-4) ..................................................................................... 6
5. ASSEMBLY ...................................................................................................................... 6
6. USE .......................................................................................................................... 6
7. MAINTENANCE AND CLEANING.................................................................................... 6
8. TROUBLESHOOTING ...................................................................................................... 6
- Dark state:
- Protection against UV/IR:
- Sensitivity:
- Delay:
- Switching time:
- Delay from dark state to luminous:
- Switch on/switch off:
- Light sensors:
- Power supply:
- Operating temperature:
- Preservation temperature:
- Structure:
3.2 MARKING
3.2.1 MARKING ON FILTER
The marking found on the lower front section of the TW-V180 model filter is composed of a
series of symbols with the following meanings:
3 / 4 – 8 / 8 – 12 TW 1 / 1 / 1 / 1 / 379 CE
light scale number
lightest dark scale number
darkest scale number
Manufacturer's symbol: TELWIN ITALY
optic class
light diffusion class
light transmission factor variation class
light transmission factor angular dependence
numerical standard of legislation referenced when requesting certification
CE marking
3.2.2 MARKING ON HELMET
The marking found on the lower front internal section of the TW-VIEW helmet is composed
of a series of symbols with the following meanings:
Manufacturer's symbol: TELWIN ITALY
numerical standard of legislation referenced when requesting certification
mechanical strength: impact at medium energy
CE marking
3.2.3 MARKING ON TRANSPARENT EXTERNAL GUARD TW B CE
The marking on the transparent external guard is composed of a series of symbols with the
following meanings:
Manufacturer's symbol: TELWIN ITALY
mechanical strength: impact at medium energy
CE marking
3.2.4 MARKING ON TRANSPARENT INTERNAL GUARD TW 1 B CE
The marking on the transparent internal guard is composed of a series of symbols with the
following meanings:
Manufacturer's symbol: TELWIN ITALY
optic class
mechanical strength: impact at medium energy
CE marking
ATTENTION: If the protection letter against high speed particles marked on
the helmet and on the protection plates is not followed by the letter T, then
an eye shield should be used against the high speed particles only at
ambient temperature.
4. DESCRIPTION
4.1 HELMET AND MAIN COMPONENTS ASSEMBLY (Fig. A)
4.2 HELMET ADJUSTMENTS (Fig. B)
4.2.1 Adjustment of the perimeter strap (Fig. B-1)
The helmet must be adjusted to efficiently protect the eyes and face during welding.
The position of the front and rear strap can be manually adjusted to perfectly adapt to head
size.
Turn the knob (in some models, the knob must be pressed to turn it) to adapt the head strap.
- 5 -
Central filter: 4-8 / 8-12 DIN
0.1 - 1 s with control knob
solar cell and replaceable lithium batteries (2xCR2450)
TW EN175 B CE
TW B CE
TW 1 B CE
page
Side filters: 10 DIN
up to 16 DIN
adjustable
adjustable
< 0.0004 s
automatic
4
-5°C (+23°F)
+55°C (+131°F)
-20°C (-4°F)
+65°C (+149°F)
plastic
3 / 4
8 / 8
12
TW
1
1
1
1
379
CE
TW
EN175
B
CE
TW
B
CE
TW
1
B
CE