Lincoln Electric IM10131 VIKING 2450D SERIES AUTO-DARKENING HELMETS - Manual (Page 6)

SPECIFICATIONS
1) Headgear compliance with ANSI Z87.1 is without sweatband installed.
3
OPERATING INSTRUCTIONS
Headgear Adjustment
HEAD SIZE ADJUSTMENT: HEADGEAR TIGHTNESS is adjusted by push-
ing in the Ratchet Knob and turning to adjust for the desired head size. This
knob is located at the back of the helmet. HEADGEAR CROWN ADJUST-
MENT is made by adjusting for comfort and snapping the pins into the holes
to lock securely in place.
TILT: Tilt adjustment is located on the right side of the helmet. Loosen the
right headgear tension knob and push the top end of the adjustment lever
outward until the leverʼs Stop Tab clears the notches. Then rotate the lever
forward or back to the desired tilt position. The Stop will automatically
engage again when released locking the helmet into position.
FORE / AFT ADJUSTMENT: Adjusts the distance between the userʼs face
and lens. To adjust, loosen the outside tension knobs and slide forward or
back to desired position and retighten. NOTE: Make sure both sides are
equally positioned for proper operation.
4
Crown
Adjustment
Ratchet
Knob
Fore-Aft
Adjustment
Tilt
Adjustment
Optical Class
LCD Viewing Area
Cartridge Size
Arc Sensor
Light State
Grind State
Cutting Shades
Variable Welding Shades
Shade Control
Power On/Off
Sensitivity Control
UV/IR Protection:
Power Supply:
Battery
Light to Dark Switching Time
Dark to Light Switching Time
Oxyfuel Gas Welding
Oxygen Cutting
Grinding:
TIG Rating
Operating Temperature
Storage Temperature
Compliance¹
1/1/1/1
97 x 62mm (3.82 x 2.44in.)
114 x 133mm (4.50 x 5.25in.)
4
DIN 4
DIN 4
5 to 8
9 to 13
Variable Shade, Digital Display Control
Auto-ON, Auto-OFF
Variable 0 to 10, Digital Display Control
Up to Shade DIN16 at all times
Solar cell with battery assist
2×CR2450 lithium batteries
0.00004 sec. (1/25,000sec.)
Variable 0 to 10, Digital Display Control
(0.1 sec. to 1.0 sec.)
Yes
Yes
Yes
DC ≥ 2 amps AC ≥ 2 amps
14°F ~ 131° F (-10°C ~ +55°C)
-4°F ~ 158° F (-20°C ~ +70°C)
ANSI Z87.1-2010/CSA Z94.3/CE EN379