289871 - Miller T94 Replacement ADF with ClearLight 2.0

Product Overview

The Miller 289871 Lens Assembly, Auto-Darkening (T94 Cl2) is a genuine OEM replacement component designed specifically for the Miller T94™ series of industrial welding helmets. This assembly houses the core auto-darkening filter (ADF) technology that defines the performance of the T94 line. Engineered for professional environments, this unit incorporates Miller's proprietary ClearLight™ 2.0 Lens Technology, which optimizes contrast and clarity in both welding and light states. This advanced optical system allows more colors of the visible light spectrum to pass through the lens, resulting in a 1/1/1/2 optical clarity rating that provides a natural, non-green view of the weld puddle and surrounding work area.

Technically, the 289871 assembly is a sophisticated piece of electronics. It features four independent arc sensors that ensure rapid reaction times (switching speeds up to 1/20,000 second) even in obstructed environments. A key technical differentiator is the inclusion of X-Mode™. Unlike standard optical sensors that rely solely on line-of-sight light detection, X-Mode electromagnetically senses the magnetic field of the arc. This ensures the lens darkens consistently even when sensors are blocked or when welding outdoors in bright sunlight, eliminating the strobe effect common in lesser lenses.

The interface on the lens assembly provides digital push-button controls for seamless adjustment of shade (Weld: 8-13, Cut: 5-8), sensitivity, and delay. It also includes InfoTrack™ 2.0, a data monitoring system that records arc time and arc count, allowing welding supervisors or operators to track productivity and arc-on time for job costing or efficiency analysis. The assembly is designed for easy installation into the T94 shell, ensuring that the helmet maintains its safety ratings and performance standards. This SKU is the direct replacement for damaged units or can serve as an upgrade for older T94 models to the ClearLight 2.0 standard.