Grinding Helmet Welding Helmet 22.5 X 18 X 28CM Wider Coverage For Welding Workers Electronic Welding

Grinding Helmet Welding Helmet 22.5 X 18 X 28CM Wider Coverage for Welding Workers Electronic Welding Specification: Description: The liquid crystal light valve in this product can turn from light to dark at the moment of electricity arc appearing with the principle of photoelectric. The darkness degree can be adjusted between DIN 9 and 13. UV-IR filtering assembly consists of reflective coated glass multi-layer light valve and polarizer. It can effectively block the ultraviolet radiation and infrared and effectively workers eyes against the damage from ultraviolet radiation and infrared . Features: Automatic darkening helmet has wider coverage than common helmet. It can be used to the face and neck against damage from electricity arc and improve working efficiency. This product is widely used in shipbuilding petroleum architecture steel boiler manufacture and so on. The operating temperature range is -5 degrees Celsius ~+55 degrees Celsius . The ultimate operating temperature range is -10 degrees Celsius ~+60 degrees Celsius . The ultimate storage temperature range is -20 degrees Celsius ~+70 degrees Celsius . The relative humidity range is 20%~80%. The helmet can the electricity arc resulted from welding to electronic signals. These signals will be magnified and passed to the LCD driven circuit in which the light valve will be turned from light to dark. It can effectively block the ultraviolet radiation and infrared and effectively workers eyes against the damage from ultraviolet radiation and infrared . Specifications: Material: PP Light Condition: DIN 4 Shading: DIN9-13 Item Size: 22.5 x 18 x 28cm / 8.85 x 7.08 x 11.02 Viewing Window: 9.2 x 4.2cm / 3.62 x 1.65 Delay Time: