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E1SL83 4 1/4 x 3 1/4Clear Anti Spatter Front Lens Cover (108mm x 83mm)
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    Rapid Ref : E1SL83  

    4 1/4" x 3 1/4"Clear Anti Spatter Front Lens Cover (108mm x 83mm)
    E1SL83

    £0.76  EX VAT
    SSP Suggested Selling Price = £0.90  YOU SAVE £0.14

    4 1/4" x 3 1/4" Anti Spatter Lens

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    Lenses FAQs

    Answers to common questions about welding helmet filter lenses and cover lenses, from shade numbers to fit and fogging.

    What is the difference between a filter lens and a cover lens?icon-minus-redicon-plus-red

    The filter lens is the dark lens that actually protects your eyes from the arc. A cover lens is a clear, replaceable plate fitted in front of it (and sometimes behind it) to take the spatter, scratches and grime so the filter stays in good condition.

    Cover lenses are not a substitute for a filter and are not dark. They are normally the part you replace most often, and they should be changed when they are scratched, pitted or hazy enough to hamper your view.

    Can I carry on using a cracked, pitted or badly scratched lens?icon-minus-redicon-plus-red

    No. A cracked, pitted or otherwise damaged filter or cover lens can reduce your vision and weaken the protection the helmet gives you, and a damaged filter may let harmful ultraviolet and infrared radiation reach your eyes. Helmet makers say to replace damaged lenses and cover plates straight away rather than carry on working.

    Inspect your lenses before each job. Replace the cover lens as soon as it is scratched, cracked, pitted or covered in spatter, and replace the filter if it is cracked or damaged. Check the manual for the correct part.

    Does an auto-darkening lens still protect my eyes when it is not darkened?icon-minus-redicon-plus-red

    Yes. Auto-darkening filters are built with a permanent ultraviolet and infrared protective layer, so that protection is present in the light state and does not depend on the electronics or the battery. Makers state this in their data sheets.

    That said, the lens must still darken properly when the arc strikes. Test it before welding, replace the battery or cell as the manual describes, and stop using the lens if it does not darken reliably, is damaged or flickers. Do not rely on a faulty lens.

    How do I choose the right shade for arc welding?icon-minus-redicon-plus-red

    The shade depends mainly on the process, the welding current and the brightness of the arc. Higher current and brighter processes need a darker lens, and the recommended shade range is set out in the shade charts supplied with filters and in the relevant standard.

    Start from the maker's chart for your process and amperage rather than guessing. If you wear a helmet with a variable shade lens, set it within the range for your work. A lens that is too light is a risk to your eyes, so do not go lighter than the recommended range just to see better. Better lighting can help instead.

    See all 6 questions for this category

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