Cleaning And Disinfecting - Telwin TW 9000 Manual Del Usuario

• Check the compatibility between marking cover plates and frame; both shall have marked the same symbol of resistance to increased
robustness and high speed particles, in this case "F". If the symbols of the marking are not common to both the cover plates and the
frame, then it is the lower protection level which shall be assigned to the complete eyes- protector.
• Eye-protectors against high speed particles worn over standard ophthalmic spectacles may transmit impacts, thus creating a hazard to
the wearer.
• Do not use replacement parts other than those original TELWIN.
Unauthorized modifications and replacement parts will void the warranty and expose the operator to the risk of personal injury.
• We recommend a use of the welding helmet, the auto darkening filter and the cover plates for a period of 2 years. The duration of use
depends on various factors such as use, cleaning storage and maintenance. Frequently inspections and replacement if it is damaged
are recommended.
• Insert two CR2450 (TW 602) - CR2032 (TW 801)-type batteries into the filter before using the helmet (FIG. B).
• Replace the batteries when the "LOW BAT" LED lights up.
PRECAUTIONS
For your protection and to ensure that your self-darkening welding filter is properly working, carefully read these instructions and consult
with a qualified instructor or supervisor prior to operation.
• These welding filters are suitable for use with virtually all welding processes except for Oxy-Acetylene welding, plasma welding, laser
welding.
• Standard polycarbonate clear protective plate must be installed on both the inside and outside surfaces of the filters.
• Failure to use protective plates may constitute a safety hazard or result in irreparable damage to the filter.
MAINTENANCE
• Frequently check the helmet components and replace any worn or damaged parts.
• Replace the external/internal transparent filter protection if it is broken, scored, scratched and out of shape. Damaged protections
impair the vision of the user, which lowers helmet protection to a dangerous level.
• Regularly clean the filter surface with a soft cloth and a non-aggressive cleaning solution, for example one for cleaning glass (do not
pour the product directly onto the filter).
• Get into the habit of making sure that the solar cells and the sensors have not darkened or are not covered in dirt. If they have or if they
are, clean them with a soft paper tissue, if necessary slightly dampened with a preparation for cleaning glass (do not pour the product
directly onto the filter).
INSTRUCTIONS FOR USE
The helmet must always and only be used to protect the face and eyes during welding. It was designed to guarantee maximum protection
during welding, to be easy to assemble, comfortable to wear and of top quality when used.
The helmet and consequently the filter glass viewing area, must be kept as close as possible to the eyes during welding, in order to protect
them from the electric arc and possible drops of molten metal.
After using the helmet and before putting it away after working, it must be checked to verify integrity and to eliminate any drops of molten
metal that may be present on the viewing filter, which can reduce its visual performance.
The helmet must be placed in a way that does not allow its dimensions to deform permanently, or the viewing filter to break.
Before starting to weld make sure that the filter and the internal and external transparent protections are correctly positioned. Where
possible, adjust the "shade" according to the current and the welding process. Table 1 gives the recommended "shade" numbers for
using an electric arc welding machine to carry out common jobs and the different welding current intensity levels. Where possible, adjust
"Sensitivity" according to the light intensity of the welding arc (where possible, adjust "delay-time" to set the delay time for moving from
dark to light shade, after interrupting the arc, according to the luminosity of the piece). Before using, carry out a test with an arc strike.
When in the "GRIND" mode, the helmet can be used for grinding process.
TROUBLESHOOTING
Some common problems listed below, together with their possible solutions, can arise when using the helmet:
• The filter does not darken or is unstable when switching from light to dark and viceversa.
Possible solution.
- The external transparent protection of the filter is dirty or damaged (change the external transparent protection).
- The sensors are dirty (clean the sensor surface).
- The level of the welding current level is too low (increase sensitivity).
- The batteries are not in good condition or not properly inserted (replace the batteries or remove them and re-insert them properly).
- Battery terminals and the contact surfaces of the filter are dirty or oxidized (clean both).
- The DIN adjustment knob of the filter is in the "GRIND" position (rotate the knob).
• Slow switching.
The operating temperature is too low (do not use at temperatures of below -5°C (+23°F).
• Poor visibility.
- The external or/and internal protection of the filter is/are dirty or damaged (clean the dirty components and replace the damaged
ones).
- Not enough light in the surrounding area.
- The scale number is not set correctly (where possible, select the correct number).
ATTENTION!
If the described malfunctions cannot be solved, stop using the helmet immediately and contact the nearest distributor.

CLEANING AND DISINFECTING

• Only use soap and water or products that do not contain solvents to clean and disinfect the helmet. Using chemical solvents ruins the
aesthetics of the helmet and can dramatically reduce its integrity.
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