Welding helmet

Automatic welding filters (ADF, automatic darkening filter) protect the eyes and the entire face during the welding process. Their advantage over conventional safety glasses is the automatic dimming few milliseconds after ignition of the arc. The helmet must therefore not be folded or removed for positioning the electrode.

ADF consist of four main components:

• An ultraviolet and infrared filters to the invisible, harmful radiation shield.
• A liquid crystal display (LCD ) to darken the visible light in accordance with the protection level.
• A photocell to detect the ignition of the welding arc.
• One of electronics that the LCD turns dark due to the sensor signal.

In addition to a light state, most ADF on several levels of protection (SST ), which darken the viewing window to different degrees to ensure optimum visibility at each welding process. The key advantage of an ADF over a protective glass is that the welding helmet remains during the entire welding process before the face. In the presence of the light state, the electrode can be accurately placed. Once the arc is struck, the ADF switches within a few milliseconds in the ( selected ) dark state. Can be blinded now Without the welding process to be monitored. After completion of the welding of the ADF open again after a short delay which protects against the afterglow. During the entire operation are always both hands for the welding work freely. The welder is so so always fully protected, the welding is better through continuous observation and the productivity of the welder increases as the time for the folding and unfolding of the helmet or record of the sign is omitted.

When professional welding automatic welding filters have become standard, and also in the leisure area a convenient solution for personal protective equipment.

• Breath and body protection