Standard features in top quality helmet. Thanks to the high quality filter and the Expert helmet shell, the welder can benefit from excellent optics, shade control as well as enjoy comfort and safety of work.

The welder can select the level of protection according to their needs using the slider at the back of the filter. The level can be set to DIN 10 or DIN 11. The detection angle of the surrounding light can be selected using the sensor strip.

Technical data Optrel E640
Shade level 4/10-11
Filter / field of view dimensions 90 x 110 x 7 mm / 38 x 98 mm
Eye protection Maximum UV and IR protection at any shade level setting
Shade level controller Inside the helmet
Sensitivity adjustment No
Detection angle adjustment 60° or 120°
Grinding mode Unavailable
Bright to dark switching time 0.4 ms at room temp., 0.1 ms at 55°C
Dark to bright switching time 0.2 – 0.3 s
Power supply Solar cells, non-removable batteries, no on/off switch
Operating temperature -10°C to +70°C
Total weight 460 g
Recommended application all electric arc welding processes.
Not suitable for laser welding!
Warranty 2 years (batteries not included)
Certification CE, DIN, ANSI, CSA, AS/NZS, GOST-R