Lincoln Electric IM10081 VIKING 2450 SERIES AUTO-DARKENING HELMETS - Manual (Page 7)

CARTRIDGE OPERATION/FEATURES
Variable Shade Control
The shade can be adjusted from shade 9 to 13 based upon welding process or
application (refer to shade selection chart on page 6). The variable shade con-
trol knob is located on the ADF cartridge as shown below.
Sensitivity Knob
Adjust the light sensitivity by turning the SENSITIVITY knob to the left or right as
shown in the figure below. Turning the knob all the way to the right, the HIGH set-
ting, is typically selected for normal use. When helmet is used in the presence of
excess ambient light or with another welding machine close by, improved helmet
performance can be obtained with a lower setting by turning the knob to the left to
reduce the sensitivity. Grind mode can be selected by rotating the sensitivity knob
all the way to the left until an audible click is heard.
Grind mode is intended for grinding only not for welding.
Delay Knob
This control is designed to protect the welder's eyes from the strong residual rays
after welding. Changing the DELAY knob will vary the dark to light time between 0.1
second (SHORT) to 1.0 second (LONG). LONG setting is recommended for weld-
ing arc has ceased and for situations where the filter may be temporarily blocked
from seeing the welding arc.
Power
This ADF cartridge is powered by replaceable batteries and solar power. The
batteries are located at the bottom of the ADF cartridge. Replace batteries when
LOW BATTERY light is lit. See the specification chart on page 3 for type of bat-
teries required.
5
10 9 12 13 11 S27978-27 LABS TM Z87 CAN/CSA Z94.3 SENSITIVITY LOW HIGH GRIND * 2450 SERIES ADF DELAY LONG SHORT LOW BATTERY
10
9
12
13
11
S27978-27
LABS
TM Z87
CAN/CSA Z94.3
SENSITIVITY
LOW
HIGH GRIND *
2450 SERIES ADF
DELAY
LONG SHORT
LOW BATTERY
HELMET CARE AND MAINTENANCE
Cleaning: Clean helmet by wiping with a soft cloth. Clean cartridge surfaces
regularly. Do not use strong cleaning solutions. Clean sensors and solar cells
with soapy water solution and a clean cloth and wipe dry with a lint-free cloth.
Do NOT submerge shade cartridge in water or other solution.
Storage: Store in a clean, dry location.
SHADE GUIDE SETTINGS
If your helmet does not include any one of the shades referenced above, it is
recommended you use the next darker shade.
6
NT1 GUIDE FOR SHADE NUMBERS OPERATION ELECTRODE SIZE ARC MINIMUM SUGGESTED(1) 1/32 in. (mm) CURRENT (A) PROTECTIVE SHADE NO. SHADE (COMFORT) Shielded metal arc Less than 3 (2.5) Less than 60 7 – welding 3-5 (2.5–4) 60-160 8 10 5-8 (4–6.4) 160-250 10 12 More than 8 (6.4) 250-550 11 14 Gas metal arc Less than 60 7 – welding and flux 60-160 10 11 cored arc welding 160-250 10 12 250-500 10 14 Gas tungsten arc Less than 50 8 10 welding 50-150 8 12 150-500 10 14 Air carbon (Light) Less than 500 10 12 Arc cutting (Heavy) 500-1000 11 14 Plasma arc welding Less than 20 6 6 to 8 20-100 8 10 100-400 10 12 400-800 11 14 Plasma arc cutting (Light) (2) (2) (2) Less than 300 8 9 (Medium) 300-400 9 12 (Heavy) 400-800 10 14 Torch brazing – – 3 or 4 Torch soldering – – 2 Carbon arc welding – – 14 PLATE THICKNESS in. mm Gas welding Light Under 1/8 Under 3.2 4 or 5 Medium 1/8 to 1/2 3.2 to 12.7 5 or 6 Heavy Over 1/2 Over 12.7 6 or 8 Oxygen cutting Light Under 1 Under 25 3 or 4 Medium 1 to 6 25 to 150 4 or 5 Heavy Over 6 Over 150 5 or 6 (1) As a rule of thumb, start with a shade that is too dark, then go to a lighter shade which gives sufficient view of the weld zone without going below the minimum. In oxyfuel gas welding or cutting where the torch produces a high yellow light, it is desirable to use a filter lens that absorbs the yellow or sodium line the visible light of the (spectrum) operation (2) These values apply where the actual arc is clearly seen. Experience has shown that lighter filters may be used when the arc is hidden by the workpiece. . Data from ANSI Z49.1-2005
NT1
GUIDE FOR SHADE NUMBERS
OPERATION ELECTRODE SIZE ARC MINIMUM SUGGESTED(1)
1/32 in. (mm) CURRENT (A) PROTECTIVE SHADE NO.
SHADE (COMFORT)
Shielded metal arc Less than 3 (2.5) Less than 60 7 –
welding 3-5 (2.5–4) 60-160 8 10
5-8 (4–6.4) 160-250 10 12
More than 8 (6.4) 250-550 11 14
Gas metal arc Less than 60 7 –
welding and flux 60-160 10 11
cored arc welding 160-250 10 12
250-500 10 14
Gas tungsten arc Less than 50 8 10
welding 50-150 8 12
150-500 10 14
Air carbon (Light) Less than 500 10 12
Arc cutting (Heavy) 500-1000 11 14
Plasma arc welding Less than 20 6 6 to 8
20-100 8 10
100-400 10 12
400-800 11 14
Plasma arc cutting (Light)
(2)
(2)
(2) Less than 300 8 9
(Medium) 300-400 9 12
(Heavy) 400-800 10 14
Torch brazing – – 3 or 4
Torch soldering – – 2
Carbon arc welding – – 14
PLATE THICKNESS
in. mm
Gas welding
Light Under 1/8 Under 3.2 4 or 5
Medium 1/8 to 1/2 3.2 to 12.7 5 or 6
Heavy Over 1/2 Over 12.7 6 or 8
Oxygen cutting
Light Under 1 Under 25 3 or 4
Medium 1 to 6 25 to 150 4 or 5
Heavy Over 6 Over 150 5 or 6
(1)
As a rule of thumb, start with a shade that is too dark, then go to a lighter shade which gives sufficient view of the weld zone without going
below the minimum. In oxyfuel gas welding or cutting where the torch produces a high yellow light, it is desirable to use a filter lens that absorbs
the yellow or sodium line the visible light of the (spectrum) operation
(2) These values apply where the actual arc is clearly seen. Experience has shown that lighter filters may be used when the arc is hidden by the
workpiece.
.
Data from ANSI Z49.1-2005