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Optrel e684: auto-darkening filter (ADF) with ShadeTronic® technology
The replaceable Optrel e684 auto-darkening filter (ADF) is the heart of advanced welding protection, designed for upgrading or servicing helmets from the Sphere and Expert series. This premium component combines the top optical class 1/1/1/1 with ShadeTronic® technology, which selects the shade automatically. By fitting this filter in your e684, e680, e670 or e650 shell, you restore its full function or bring it up to the latest technical standard, with high precision, safety and working comfort.
Key features
Top optical class
1/1/1/1 to EN379
ShadeTronic® Autopilot
Automatic shade 5-13
Broad compatibility
Sphere / Expert series (e650-e684)
Technology details
ShadeTronic® Autopilot, protection that adapts itself
ShadeTronic® is an intelligent system that analyses the brightness of the welding arc in real time and automatically selects the right shade in the range from 5 to 13. You no longer need to adjust the filter by hand when you change the process, the current or the welding position. The system makes sure your eyes always get exactly the shade the moment requires, which reduces the risk of arc flash and eye strain. This means uninterrupted work and uncompromising safety, so you can focus on the quality of the weld rather than on equipment settings.
Optical class 1/1/1/1, a crystal-clear view
The e684 filter offers the highest possible optical classification 1/1/1/1 according to EN379. This means no image distortion (first "1"), no light scatter or haze (second "1"), even darkening across the whole filter surface (third "1") and excellent visibility even at an angle (fourth "1"). This specification gives a clean, clear view of the weld pool and its surroundings without optical defects. A filter in class 1/1/1/1 gives you top optical quality, the basis of precise welding and professional eye protection.
True-Color View filter, a realistic view of your work
Unlike standard filters that give the image a greenish tint, True-Color View technology provides almost natural colour perception. The specially designed UV/IR filter lets through a broader part of the colour spectrum, which greatly improves the visibility of details, red LEDs on equipment and markings on the material. As a result, you have full control over the process, can guide the torch more precisely and spot weld defects faster. The True-Color filter translates directly into more precise work and less eye strain during long tasks.
FadeTronic® technology, smooth filter brightening
Patented FadeTronic® technology changes the way the filter returns to the light state after welding. Instead of a sudden, abrupt brightening, the system gives a smooth, gradual transition from dark to light over an adjustable time from 0.1 to 2.0 seconds. Your eyes can adapt gently to the change in light, which clearly reduces fatigue and discomfort, especially during intensive tack welding or short welding cycles. It protects the health and comfort of your eyes, raises productivity and lets you work longer without feeling tired.
Technical specifications: helmet
| Feature | Value |
|---|---|
| Shade levels | Light state: 4.0; Active state, ShadeTronic® (Autopilot): 5-13 |
| EN379 classification | 1/1/1/1 |
| Field of view | 50 x 100 mm |
| Power supply | Solar cells, 2 replaceable lithium batteries (CR2032) |
| Battery life | approx. 3000 operating hours |
| Switching time (light/dark) | 0.170 ms at room temperature; 0.110 ms at 55°C |
| Switching time (dark/light) | 0.1 s to 2.0 s (with FadeTronic® technology) |
| Compatibility | Optrel helmet shells from the Sphere / Expert series (models e684, e680, e670, e650) |
What's in the box?
- Optrel e684 auto-darkening filter (ADF)
- External control module (satellite)
- CR2032 batteries (2 pcs)
- User manual
Main applications
- Stick welding (SMAW)
- MIG/MAG welding (GMAW)
- Flux-cored wire welding
- TIG welding (GTAW)
- Plasma welding
- Microplasma welding
- Plasma cutting
- Grinding (in light mode)
About the Optrel brand
Optrel is a Swiss innovation leader in welding protection. For decades the brand has stood for uncompromising quality, groundbreaking technology and the highest level of safety, and professionals around the world trust it. When you choose a genuine Optrel component, you invest in decades of engineering experience and technology that sets industry standards.
