Items to be mounted into Unitor face shield in the following manner:

A. Safety glass (Polycarbonate) The glass should be placed nearest to the eyes to protect against slag or other articles while chipping/ grinding. When using a shield with a flip-up front frame, the safety glass shall be placed in the fixed frame.

B. Filter shade glass Filters out harmful infra-red and ultra-violet rays from the welding arc, and educes visible light to a level which is sufficient to see the welding process without straining the welder’s eyes. Filter Shade Glass should be selected after consulting the welding process and amperage (see table). The glasses are arked Protane Shade SO 1 DIN 0196 CE

C. Protection glass Is placed in front of the filter shade glass to protect gainst spatter. The protection glass should be replaced at regular intervals. A B C Guide to arc welding glasses