The use of welding mask welding of the basic working principle is to rely on a short circuit will be generated by high-energy molten welding work carried out.
The use of electric welding mask welding protection of the human body which:
1. Protect the eyes: If you do not have a direct look at welding welding mask welding, then it will cause a mild burning eyes, that is, welders often said "hit the eye," This is because it is the moment to issue short-circuit high intensity light, which is equivalent We see with your eyes directly to the sun.
2. Protect the body: If you do not have to use a direct welding mask, welding welding to form the circuit must have electromagnetic fields, long-term work in the electromagnetic field, is definitely not a good thing; Another point is do not use welding mask welding electrode welding Essential medicines out of volatile toxic gases will be directly on your face.
3. Welding mask to protect the human body to prevent the direct radiation is not only used the word to the measured one. Even more so in many other protective effects on the body.

Welding Helmet Usage:
1, torn off frame boxes inside and outside surface of the protective film;
2, no starting welding, the window was a transparent state, can clearly see the parts played arc an instant, Windows automatically darken when welding stops, the window then back to the transparent state.
3, according to the different welding methods to regulate the delay to return switch.
4, according to the size of the welding current and welding shade differences in the way adjustment knob to choose the right shade;
5, adjusting headband:
a, the first rotating headband to headband adjustment knob at the back of the head position; hand pressure, and counterclockwise rotation of the first things at the same time adjust button, you can relax the headband size, and vice versa reduced;
b, adjustable head frame of the main positioning hole to adjust the headband to the eye from the ground at the top of the vertical position;
c, screw pine nuts on both sides of ears, face masks may be a long-shaped headband around the mobile hole move to regulate the window to the eye distance;
d, adjustable positioning window films can be fine-tuning perspective.

Maintenance auto darkeng welding helmet:
Use Cabo Li detergents used in cleaning frame box; with paper towels or a clean cotton cloth dipped in an appropriate detergent, wipe the frame box until the stains addition to the net; Do not pour detergent directly on the frame boxes; Do not frame box immersed in water or other liquid.
* Neutral detergents to clean the headband;
* Not directly struck against the filter sheet

Note the use of auto darkeng welding helmet:
In frame box must be mounted outside the protection of surface film. Do not install the protection film frame box may result in harm can not be complacent;
* Broken or scratched frame after the impact of vision and seriously reduce the scope of protection, so as soon as possible to be replaced;
• Protection of broken or scratched piece after going to the replacement, filter replacement do not touch the film;
Use a temperature of -5 ℃ (23 ° F) to +55 ℃ (131 ° F), at an ambient temperature is low, the frame group liquid crystal materials, the reaction speed will be reduced, but does not affect the performance of its various protective .
* Do not frame boxes stored in a place near sources of heat or humidity;
* Do not use alcohol, gasoline or thinner frame box clean, do not immerse it in water;
* The regular replacement of Sweat-absorbent band;