
The ArcOne S240-9 is a high-performance retrofit Auto-Darkening Filter (ADF) designed to modernize standard passive welding helmets. Part of the Singles® HD series, this lens incorporates advanced High Definition optical technology, which significantly enhances the welder's visual acuity by minimizing the traditional green tint associated with older ADF models. The result is a crisper, more natural view of the weld pool and surrounding heat-affected zone.
Technically, the S240-9 features a fixed Dark State of Shade 9, making it ideal for specific amperage ranges in MIG and Stick welding processes where a consistent opacity is required. A standout specification of this unit is its Light State of 2.5. This exceptionally bright resting state allows operators to perform non-welding tasks such as grinding, material inspection, and joint alignment without the need to raise the welding helmet, thereby increasing workflow efficiency and safety.
The module measures a standard 2 inches by 4.25 inches (approx. 50.8mm x 108mm), ensuring compatibility with a vast array of existing helmet shells, including popular "pancake" styles and traditional flip-front hoods. It is powered exclusively by solar cells, which harvest energy from the welding arc and ambient light, eliminating the logistical burden of battery replacement. Two independent sensors are embedded within the unit to detect arc initiation with rapid response times, ensuring immediate darkening protection.
Constructed to meet rigorous industrial standards, the S240-9 is certified to ANSI Z87 and CSA Z94.3 specifications. The unit is sealed against dust and moisture, providing durability in challenging shop and field environments. With a viewing area of approximately 5.25 square inches, it maximizes the visual field within the constraints of the 2x4 form factor. This lens represents a significant technical upgrade for professionals seeking to leverage modern ADF capabilities within their preferred helmet chassis.
| Additional Information |
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| Brand:ArcOne |
| Lens Shade:9 |
| Packaging Description:1 Per Ea |
| Lens Size:2" x 4-1/4" |
| Light State:2.5 |
| Power Source:Solar |
| Sensors:2 |
| Technology:HD Technology |
| Warranty:3 Years |
| Standards:ANSI Z87, CSA Z94.3 |