Hornell Speedglas Utility Mode D'emploi page 4

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The front of the lens has sensors that detect the light from the
welding arc and cause the lens to darken. If the lens has not
sensed an arc for 30 minutes, the power will shut off automatical-
ly. The lens may also be turned off manually by pressing the ON
button down for 2 seconds. Two environmentally-friendly lithium
batteries power the lens; in addition, some Speedglas 9000 lens
models have a solar panel that extends the life of the batteries.
The recommended operating temperature range for Speedglas
welding lenses is 23° to 131°F (-5° to 55°C). Check that the
lens has the recommended dark shade number for your
welding application.
The following are the three different lens states; in all three
states, the welder is always protected from UV and IR radiation
(UV/IR protection is rated by the lens' darkest shade):
• OFF - When OFF, the Speedglas lens corresponds to shade 5-6.
• LIGHT STATE - When the user turns ON the lens (by pressing
the ON button), it changes to the light state (shade 3). In this
state, the lens's sensors are ready for arc detection.
• DARK STATE - When the lens's sensors detect a welding arc,
the lens changes to the dark state and remains in this state dur-
ing the welding process. In the dark state the eyes are shielded
from the bright, irritating arc light as well as harmful UV and IR
radiation. The dark shade number(s) of your Speedglas lens is
clearly marked on the control panel of the lens. "Fixed" dark
shade models (Utility, 9000F and 9000XF) have only one dark
shade setting, which is set at the factory. All other models
(9000V and 9000X) have user-adjustable dark shade settings, as
indicated by the SHADE dial on the lens's control panel.
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Adjustment of Helmet & Viewing
Position
1) Adjust the overhead band to one of the custom fit positions for
proper helmet depth and to ensure balance and stability
(Figure 1). The headband also has a ratcheted knob to increase
or decrease its circumference to match the welder's head size.
2) Check for proper viewing position. The recommended viewing
angle between the face and helmet is 10° to 12° (Figure 2). To
adjust the viewing angle, follow step 3.
3) Position the helmet/headband stop so the peg on the side of the
welding helmet (Figure 3) goes through one of the slots in the
stop to obtain the desired viewing angle.
Checking for Light-Tightness
Perform Before Each Use
1) Make sure that the lens is OFF (if ON, hold down the ON
button for about 2 seconds).
2) Put on the helmet with the lens in place. Look towards a light
source.
3) If any light leaks can be seen around the periphery of the lens,
do not use the welding helmet. If the helmet has been recently
dis-assembled by the user, re-assemble it following the instruc-
tions in this manual. If you still see light leaks, check with
your supervisor or your Hornell representative.
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