246967 - Miller Titanium 9400 Replacement Auto-Darkening Lens Assembly

Technical Overview of the Miller 246967 Lens Kit

The Miller 246967 is the official OEM replacement Auto-Darkening Lens assembly designed specifically for the Titanium 9400 and Titanium 9400i industrial welding helmets. This unit is not merely a filter plate but a sophisticated electronic module that serves as the core of the Titanium series' eye protection system. The assembly integrates Miller's advanced optical technology with robust physical protection mechanisms, making it suitable for high-amperage, heavy-industrial welding applications.

Technically, the lens features a large 9.22 square inch viewing area, providing one of the most expansive fields of view in the industry. It utilizes four independent arc sensors to ensure rapid switching times (1/20,000 second) even when the sensors are partially obstructed by fixtures or the operator's position. A key differentiator of this assembly is the integrated aluminum heat shield. This reflective barrier is built directly into the front of the cartridge to deflect radiant heat, protecting the liquid crystal display and electronics from thermal damage during sustained high-amperage welding—a critical feature for the longevity of the equipment in heavy fabrication environments.

The digital interface provides granular control over welding parameters. The lens supports four distinct operating modes: Weld (Shades 8-13), Cut (Shades 5-8), Grind (Shade 3), and X-Mode. X-Mode is particularly significant for industrial settings; it utilizes electromagnetic sensing to trigger the darkening filter based on the magnetic field of the arc rather than light alone. This eliminates interference from direct sunlight when working outdoors and prevents the lens from darkening due to adjacent welding arcs in a busy shop. Furthermore, the lens includes InfoTrack™ technology, an onboard data logging system that records arc time and arc count, allowing safety managers and operators to track productivity and arc-on time accurately. The kit is supplied as a complete drop-in unit, ready for immediate installation into the helmet shell.