1.995.198 IT-EN - Rev. 1.2
MASCHERA TOP VIEW-TOP BEST
HELMET TOP VIEW-TOP BEST
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3. CHARACTERISTIC
Automatic welding helmet is equipped with a filter set that can become dark. The
filter is transparent before welding, so the operators may observe the work surface
clearly.When striking arc, the filter darkens automatically immediately. When arc goes
out, the filter will become transparent again. The switching time from light to dark is
about 0.0004 second.The switching time from dark to light may be set up within 0.1-
0.9 second.
The mask is equipped with continuous darkness-adjusting unit, so the operator may
select an arbitrary dark shade number ranging from No.5 to No. 13.
Automatic welding mask gives the operators permanent complete protection against
UV/IR even in transparent condition. The UV/IR protection level is up to DIN15 in all
time. The power is provided by solar cells and replaceable battery.
The mask is equipped with 4 sets of photo sensors to sense arc light. In addition, the
mask is also provided with an outer protection plate made of high polymer materials.
The plate is wear-resistant, thermostable, and has no dregs-sticking, thus a very long
service life.
4. MAIN SPECIFICATIONS
TOP VIEW
TOP BEST
Filter dimension
114 x 133 x 9.5 mm
114 x 133 x 9.5 mm
View area
100 x 83.4 mm
100 x 60 mm
Light shade number
4
4
Dark shade number
5 - 13
9 - 13
Uv/ir protection
Up DIN 15
Up DIN 15
Time from light to dark
1/10000 s
1/10000 s
Time from dark to light
0.1 – 0.9 s
0.1 – 0.9 s
Sensivity / delay
Adjustable
Adjustable
Power / supply
Solar cells
Replaceable battery
Solar cells
Replaceable battery
Operating temperature
-10°C – 65°C
(14°F – 149°F)
-10°C – 65°C
(14°F – 149°F)
Warranty
2 years
2 years
Grind function
Yes
Yes
Optical classification
1/2/1/1
1/2/1/1
Battery
1 pcs CR2450
2 pcs CR2450
Memory function
Yes
No
