Comparison Forte MC-3500 vs Forte MC-1000

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	Forte MC-3500	Forte MC-1000
	from $14.24 up to $18.80 Outdated Product	from $10.88 up to $14.72 Outdated Product
all specs only differences
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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	50 ms	50 ms
Filter class	1/1/1/2	1/1/1/2
Filter viewing area (WxH)	92x42 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
Delay time adjustment	internal mechanical
Colour rendering	standard (shades of green)	standard (shades of green)
Design features	internal and external controls	controls outside
Color
Added to E-Catalog	november 2015	november 2015

Sensitivity adjustment

The ability to change the sensitivity of the sensors responsible for the operation of the light filter in the "chameleon". Thanks to this function, you can adjust the filter in such a way that it is guaranteed to turn on from the arc and at the same time does not react to extraneous light sources. sensitivity adjustment is especially useful when there is numerous extraneous "flare" (for example, when several welders work close to each other, in bright sunlight, etc.).

Delay time adjustment

The ability to manually set the delay time between the disappearance of the arc and turning off the filter in the chameleon mask. Such a delay is highly desirable in the light of the fact that even after the arc is turned off, the heated metal continues to glow for some time; therefore, it is advisable not to turn off the filter immediately. Adjusting the delay time allows the welder to independently choose the time to return to the non-working (maximally transparent) state.

Design features

— Backlight. Illumination system built right into the mask. This feature is very convenient when working in low light conditions: the backlight does not take up the hands (unlike hand-held flashlights) and does not create problems with wearing a mask (unlike headlamps), while the beam of light is always directed to where the welder's head is turned. On the other hand, such a system requires its own power supply. Therefore, it is used only in "chameleons", while the operation of the backlight additionally consumes battery power.