04 Apr
04Apr

Passive and auto-darkening are two types of welding helmet . The typical welding hood is a passive lens helmet. This may be the only type of helmet that comes to mind for individuals who haven't done any welding. With a permanently tinted fixed shade, these hoods include a lens that filters out UV and infrared radiation. It is imperative to know about these things before choosing a welding helmet. Because these had a great impact on the result. 

The wearer will flip the faceplate of the helmet up before bringing the welder into place, then flip it back down before hitting the arc, because the lens is too dark to see through when the welding torch isn't lighted. Helmets with auto-darkening lenses eliminate the need to adjust the faceplate position. When the lens is inactive shade #3 or #4 will create a low level of shade. Sensors detect light and darken the lens as soon as you strike the arc. The lens will lighten once the arc has ended. 


Auto-darkening helmets are very popular and they are widely regarded as a better option than passive welding helmets. They also provide a wide range of choices. We'll look at some items to think about while choosing a welding hood with an auto-darkening lens in the sections below.

Consider the Reaction Time of Lenses

Your eyes should be safe as long as you wear an auto-darkening helmet that fulfils ANSI Z87.1 and CSA Z94.3 standards. Even if the lens isn't darkened, it features built-in protection against infrared and ultraviolet light, which can cause damage to your eyes. The time it takes for the lens to darken, on the other hand, can effect your comfort. Before your eyes have time to perceive the light from the arc, any good helmet will dim in milliseconds. If you're only conducting light welding, a less expensive helmet with a lens reaction time of 1/3,600 of a second might suffice.

However, if you're welding for the greater part of the day, a lens rated at that pace may induce eye strain and fatigue. In situations like this, a helmet with a faster reaction time is preferable. Even throughout long days of labor, a helmet with a reaction speed rating of 1/20,000 of a second will keep your eyes comfortable. 

Consider Fixed Vs Variable Shade of Welding Helmet

Some welding helmets with auto-darkening lenses darken the lens to shade 10. And it is the most common shade for passive helmet lenses. To get clear picture and make right decision, you should know the difference between auto-darkening welding helmet vs passive. This style of helmet may be suitable if you just do one type of welding or keep the amperage constant. If you transition between MIG and TIG, for example, a variable shade helmet may be preferable to a fixed shade helmet. These helmets come in a variety of colors, usually ranging from shade 9 to 13. Even when the brightness of the welding arc varies, you can still see what you're doing.

Consider the Sensitivity and Adjustability

Despite the absence of sensitivity and delay options on entry-level auto-dimming helmets, these can be useful tools. You may pick what level of brightness the lens must detect before it darkens thanks to adjustable sensitivity adjustments. If you don't have changeable sensitivity controls and there are other welders nearby, their arcs may activate your helmet's responses. Furthermore, if you're TIG welding, the lesser amperages may not trigger a helmet with too high sensitivity controls. To get a clear view about the performance of a welding helmet, you should test an auto-darkening welding helmet. These test will help you to make a right decision about welding helmet.
It's also convenient to be able to modify the delay. You may change how long the lens stays dark after the arc finishes using these parameters. When tack welding, a shorter delay period is advantageous since it allows you to move the welder more quickly. A longer delay of up to a second may be better for higher-amperage welding. So, consider it while choosing auto-darkening welding helmet. Because it is vital for excellent quality welding helmet.

Consider View Area and Controls

Welding helmets come in a variety of sizes for the screen. However, the size you choose is determined by your personal preference. Wider viewing areas, on the other hand, have some advantages. When working on larger weld assemblies, you can get a better notion of where you are with increased peripheral vision. So, its make welding easy.
Only one or two sensors are included in certain low-cost auto-darkening helmets. A helmet with four sensors, on the other hand, is ideal. More sensors imply more coverage. If you weld out of position and there's a flash, a two-sensor helmet might not register it and won't darken. A four-sensor helmet, on the other hand, is likely to detect any flash and darken the lens correctly.

Consider Power Source of Welding Helmet

Your helmet will be useless if you don't have access to a power source. Batteries, solar panels, or both are commonly used in helmets. Using both is the best option, as the solar panels can help the battery last longer.
Another thing to think about is where the controls are located. Changing settings without removing the helmet is possible thanks to an external control panel. However, because of their location on the outside, they are more vulnerable to harm. Internal controls are more secure, but they are more difficult to alter.

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