The Optrel e684 Blue is a premium auto-darkening welding helmet designed for professional welders who require high optical clarity, automatic shade control, and ergonomic comfort in demanding fabrication environments.
It belongs to Optrel’s Sphere Series and uses the brand’s ShadeTronic® adaptive shade system, which automatically adjusts lens darkness based on arc intensity without manual input.
This model is widely used for TIG, MIG/MAG, stick welding, plasma cutting, and grinding operations where consistent visibility and eye protection are critical.
Key Features
ShadeTronic® Automatic Shade Control
The helmet automatically adapts shade levels in real time based on welding arc brightness, eliminating the need for manual adjustment when switching processes or amperage levels.
True Color Vision
Advanced optical filtering delivers a more natural color view of the weld puddle and base material, improving precision, edge recognition, and overall weld quality.
Optical Class 1/1/1/1
The e684 Blue meets the highest EN379 optical standards:
- Optical clarity: 1
- Light diffusion: 1
- Homogeneity: 1
- Angular dependence: 1
This ensures consistent visibility from all viewing angles, especially helpful in out-of-position welding.
FadeTronic® Technology
After welding stops, the lens transitions gradually from dark to light to reduce eye strain caused by sudden brightness changes.
Grind Mode
A dedicated grinding setting allows the helmet to remain in a light state for grinding and preparation work without removing it.
Sensor System
- 3 arc sensors
- Adjustable sensitivity (including high/low arc detection modes)
- Reliable arc detection for low-amp TIG welding
Comfort Headgear
Ergonomic headband designed for:
- Balanced weight distribution
- Reduced neck fatigue
- Extended wear comfort in industrial use
Technical Specifications
| Category | Specification |
|---|---|
| Optical Class | 1/1/1/1 |
| Light State | Shade 4 |
| Auto Shade Range | 5 – 13 |
| Manual Range | 5–9 / 9–13 |
| Sensors | 3 |
| Weight | ~500 g (17.6 oz) |
| Power | Solar cells + 2 × CR2032 batteries |
| Switching Speed | ~0.1 ms range (ultra-fast ADF response) |
| Operating Modes | Weld / Grind / Auto Shade |
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