Würth VELDO - Page 10

10
Commom problems and remidies
* Irregular Darkening Dimming
• Headband has been set unevenly and there is an
uneven distance from the eyes to the lter’s lens
(Reset headband to reduce the dierence to lter).
* Auto-Darkening Filter Does Not Darken
Or Flickers
• Front cover lens is soiled or damaged (change
lens cover).
• Sensors are soiled (clean the sensors’ surface)
• Welding current is too low (turns the switch to the
“Long” position).
* Slow response
• Operating temperature is too low (do not use at
temperatures below - 5 ° C or 23 °F).
* Poor Vision
• Front /inside cover lens and/or lter lens are
soiled (change lens)
• There is insucient ambient light
• Shade number is incorrectly set (reset the shade
number)
* Welding Helmet Slips
• Headband is not adjusted properly (readjust
headband)
WARNING! Operator must stop using the auto
- darkening lter welding helmet immediately if the
above-mentioned problems cannot be corrected.
Contact the dealer.
Warning
• This Auto-Darkening lter Welding Helmet is not
suitable for laser welding & Oxyacetylene Weld-
ing.
• Never place this Helmet and Auto-darkening lter
on a hot surface.
• Never open or tamper with the Auto-Darkening
Filter.
• Before operating, please make sure if the function-
setting switch set the suitable location “WELD-
ING”/ “GRINDING”, or not. This Auto-darkening
lter welding helmet will not protect against
severe impact hazards.
• This helmet will not protect against explosive
devices or corrosive liquids.
• Don’t make any modications to either the lter or
helmet, unless specied in this manual. Don’t use
replacement parts other than those specied in this
manual. Unauthorized modications and replace-
ment parts will void the warranty and expose the
operator to the risk of personal injury.
• Should this helmet not darken upon striking an
arc, stop welding immediately and contact your
supervisor or your dealer.
• Don’t immerse the lter in water.
• Don’t use any solvents on lters’ screen or helmet
components.
• Use only at temperatures : - 5°C ~ + 55°C (
23°F ~ 131°F ).
• Storing temperature : - 20°C ~ + 70°C (-4 °
F ~ 158° F).
• Protect lter from contacting with liquid and dirt.
• Clean lters’ surfaces regularly; do not use strong
• Variable shade (DIN) from DIN9 to DIN13 is
adjusted at the turn of a shade knob (shade
variable).
• The product is in full conformity with related
DIN, ISO, EN safety standards and ANSI Z87.1-
2003 standards.
• The ultra high performance of UV/IR Auto-Dark-
ening lters provide full protection for the user’s
eye & face a against UV/IR radiation during the
entire welding process, even in the light state. The
UV/IR protection level is up to Shade16(DIN)
at all times. It makes welders feel comfortable in
welding working.
cleaning solutions. Always keep sensors and solar
cells clean using a clean lint-free tissue/cloth. ·
• Regularly replace the cracked/scratched/pitted
front cover lens.
Severe personal injury could occur if the
user fails to follow the aforementioned
warnings, and / or fails to follow the
operating instructions.
Lens & helmet maintenance
• Replacing the front cover lens if it is damaged
(cracked, scratched, soiled or pitted)
Step 1: Remove the front cover lens by pulling up the
central part of the lens (gure). Place the new cover
lens into the correct position.
Step 2: Check and make sure that the frame is
securely installed.