What are auto-darkening lenses?
Welding processes utilize various energy sources and each comes with its risks. Therefore, it is advisable to choose the correct protective gear for your safety. For example, the light produced during welding can cause damage to the retina and affect your ability to see. As a welder, you need to protect your eyes from that light, sparks, and gas by using the right welding helmet with the right shade.
These types of welding helmets provide the best protection because they can adjust automatically when you strike an arc. The ability to adjust automatically enables you to perform the activity without having to adjust the faceplate manually. So what exactly is the auto-darkening lens or filter?
The ADF is a crystal display, which resembles a digital alarm clock. It covers your eyes at all times to prevent them from getting into direct contact with the gas, light, or sparks. You can find more information on welding helmets from Welding Wolf. If you decide to choose the auto-darkening lenses, here are some components you should have in mind:
Fixed shade: this type of lens can turn dark only to a predefined level. This happens immediately it recognizes an electric arc.
Variable shade: this type of shade lens turns dark according to the brightness of the welding arc. The feature is useful if you are engaged in various types of welding, in which the lenses will adjust accordingly.
Power source: auto-darkening helmets often come with two levels of a power source to control their functions. They are either solar powered or battery powered. Solar powered helmets utilize the light produced by the welding arc as their source of energy, which makes them more efficient. For battery-powered helmets, they utilize either lithium or NiCad batteries.
Lens response: It is advisable to have a helmet with a quicker lens response, as this leads to improved safety.
Sensors: the auto-darkening property depends on the number of sensors available on the helmet. With more sensors, the helmet is able to detect the changes in lighting as quickly as they happen.
Sensitivity control: this feature is important especially when you work at low amperage. In that condition, the helmet will adjust based on how much light you need to start up the darkening function.
Delay: with the delay function, you are able to set the duration it takes for your lens to light up after the welding arc disappears. This feature can help you when you are welding at different styles.
Whether you are a start-up welder or a veteran practitioner, it is advisable to know different types of welding helmets and learn how they operate. This, in the end, could help you make a better choice when you are out to replace yours.