USA
Catalog   /   Tools & Gardening   /   Machines & Equipment   /   Welding Helmets

Comparison Limex Expert MZK-500D 53389 vs Iskra MSA-800

Add to comparison
Limex Expert MZK-500D 53389
Iskra MSA-800
Limex Expert MZK-500D 53389Iskra MSA-800
from $24.12 up to $26.56
Outdated Product
from $30.48
Outdated Product
TOP sellers
Typechameleon helmetchameleon helmet
Specs
Light filtering levels4 DIN4 DIN
Min. degree of darkening9 DIN9 DIN
Max. degree of darkening13 DIN13 DIN
Protection from UV/IR16 DIN15 DIN
Turn-on time40 ms40 ms
Filter class1/2/1/2
Filter viewing area (WxH)92x42 mm98x43 mm
Filter cartridge dimensions (WxH)110x90 mm110x90 mm
Filter cartridge thickness9 mm8 mm
Optical sensors22
Operating temperature-5 – 55 °C-5 – 55 °C
Helmet weight450 g490 g
Filter functions
Darkening adjustmentexternal mechanicalexternal mechanical
Sensitivity adjustmentinternal mechanicalinternal mechanical
Delay time adjustmentinternal mechanicalinternal mechanical
Grinding modeexternal mechanical activation
Colour renderingstandard (shades of green)standard (shades of green)
Design features
internal and external controls
internal and external controls
Color
Added to E-Catalogmarch 2017november 2015

Protection from UV/IR

The degree of protection against infrared and ultraviolet radiation provided by the complete mask light filter.

Such protection is relevant primarily when working with electric welding: it is the electric arc that produces a large amount of IR and UV radiation. Exposure to these types of radiation on the skin can cause burns, and ultraviolet light is also harmful to the eyes. The degree of protection in this case is indicated in DIN units, and the larger the number in such a designation, the higher the degree of protection. In this case, 12 DIN is considered the minimum acceptable indicator, however, masks / goggles can be found on the market with higher protection rates — up to 16 DIN inclusive.

From a purely practical point of view, the higher this level of protection, the better; however, this characteristic significantly affects the price, and sometimes also the weight of the mask / goggles. So when choosing, it is worth considering the features of the planned work. For example, it is hardly worth specifically looking for a model for 15 – 16 DIN, if you have to cook rarely and little by little, but for professional use and large volumes of work, this level of protection will be very useful.

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.

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.
Limex Expert MZK-500D 53389 often compared