Comparison Tesla Weld 30.997 vs Forte MC-9000
Add to comparison |  |  |
|---|---|---|
| Tesla Weld 30.997 | Forte MC-9000 | |
from $72.08 | from $40.62 up to $48.00 | |
| User reviews | ||
| TOP sellers | ||
| Type | chameleon helmet | chameleon helmet |
Specs | ||
| Light filtering levels | 4 DIN | 4 DIN |
| Min. degree of darkening | 5 DIN | 5 DIN |
| Max. degree of darkening | 13 DIN | 13 DIN |
| Protection from UV/IR | 16 DIN | 16 DIN |
| Turn-on time | 33.3 ms | 33.3 ms |
| Filter class | 1/1/1/2 | |
| Filter viewing area (WxH) | 100x55 mm | 100x53 mm |
| Filter cartridge dimensions (WxH) | 110x90 mm | 110x90 mm |
| Filter cartridge thickness | 10 mm | |
| Optical sensors | 4 | 4 |
| Operating temperature | -5 – 70 °C | -5 – 55 °C |
| Helmet weight | 495 g | 460 g |
Filter functions | ||
| Darkening adjustment | external mechanical | external mechanical |
| Sensitivity adjustment | external mechanical | external mechanical |
| Delay time adjustment | external mechanical | external mechanical |
| Grinding mode | external mechanical activation | external mechanical activation |
| Colour rendering | standard (shades of green) | standard (shades of green) |
| Design features | controls outside | controls outside |
| Color | ||
| Added to E-Catalog | february 2016 | november 2015 |
Compare Tesla Weld 30.997 and Forte MC-9000
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Glossary
Filter class
Class is a complex indicator that determines the overall quality of the light filter in a chameleon mask (see "Type"). The class is indicated by 4 numbers, each of which describes a specific optical parameter. So, the first number indicates the overall clarity and lack of distortion; the second is the degree of light scattering; third — uniformity of blackout (presence/absence of visible blackout spots); the fourth is the angular dependence (how much the filter brightens when the angle of view deviates from the perpendicular). In each case, the larger the number, the worse this parameter is. The perfect indicator is considered to be 1/1/1/1, but in fact it is very difficult to achieve an perfect angular dependence, and there is no need to. Therefore, an indicator of 1/1/1/2 is considered quite sufficient even for a high-end professional filter.
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.
Operating temperature
The range of ambient air temperatures at which the mask is guaranteed to be able to function normally. This parameter is especially important for "chameleons" (see "Functions"), because. the performance of the automatic filter directly depends on external conditions (in particular, at low temperatures, the response time may increase).