Comparison Forte MC-4100 vs Forte MC-3500
Add to comparison |  |  |
|---|---|---|
| Forte MC-4100 | Forte MC-3500 | |
from $19.04 up to $24.40 | from $14.24 up to $18.80 | |
| TOP sellers | ||
| Type | chameleon helmet | chameleon helmet |
Specs | ||
| Light filtering levels | 4 DIN | 4 DIN |
| Min. degree of darkening | 9 DIN | 9 DIN |
| Max. degree of darkening | 13 DIN | 13 DIN |
| Protection from UV/IR | 16 DIN | 16 DIN |
| Turn-on time | 40 ms | 50 ms |
| Filter class | 1/1/1/2 | 1/1/1/2 |
| Filter viewing area (WxH) | 96x42 mm | 92x42 mm |
| Filter cartridge dimensions (WxH) | 110x90 mm | 110x90 mm |
| Filter cartridge thickness | 9 mm | 9 mm |
| Optical sensors | 2 | 2 |
| Operating temperature | -5 – 55 °C | -5 – 55 °C |
| Helmet weight | 460 g | 460 g |
Filter functions | ||
| Darkening adjustment | external mechanical | external mechanical |
| Sensitivity adjustment | internal mechanical | internal mechanical |
| Delay time adjustment | internal mechanical | internal mechanical |
| Grinding mode | external mechanical activation | |
| Colour rendering | standard (shades of green) | standard (shades of green) |
| Design features | internal and external controls | internal and external controls |
| Color | ||
| Added to E-Catalog | november 2015 | november 2015 |
Compare Forte MC-4100 and MC-3500
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Glossary
Turn-on time
The turn-on time of the filter in the chameleon mask (see "Type"), in other words, the time between striking the arc and darkening the filter to the operating level.
From a safety point of view, the turn-on time should be as short as possible: the faster the "chameleon" works, the less bright light from the arc enters the welder's eyes. On the other hand, reducing the reaction time affects the cost of the product. So for relatively small volumes of work, it is quite acceptable to use relatively “slow” masks — for 100 μs or more(especially since even in the simplest models, the reaction time does not exceed 1200 μs, while theoretically the maximum allowable value is 2000 μs). But for more serious use, you should pay attention to more "fast" options; nowadays, you can find masks with response times from 75 to 100 µs, from 50 to 75 µs, and even less than 50 µs.
From a safety point of view, the turn-on time should be as short as possible: the faster the "chameleon" works, the less bright light from the arc enters the welder's eyes. On the other hand, reducing the reaction time affects the cost of the product. So for relatively small volumes of work, it is quite acceptable to use relatively “slow” masks — for 100 μs or more(especially since even in the simplest models, the reaction time does not exceed 1200 μs, while theoretically the maximum allowable value is 2000 μs). But for more serious use, you should pay attention to more "fast" options; nowadays, you can find masks with response times from 75 to 100 µs, from 50 to 75 µs, and even less than 50 µs.
Filter viewing area (WxH)
The size of the transparent part of the light filter — the "working window", the area through which the welder sees the place of work. A larger working window provides ease of use and a wide field of view, but it significantly affects the cost of the mask and somewhat reduces the strength of the light filter.
Grinding mode
A special mode of operation of the chameleon mask, in which the light filter sensors are completely turned off — thus, it constantly remains transparent and does not respond to any flashes. This mode is useful for jobs that can produce fairly bright flashes of light, but do not require dimming. A classic example of such work is grinding with a “grinder” or a machine tool, when sparks can fly from the workpiece; hence the name of this function — "grinding" mode.