Tweco ProPlus Digital Auto-Darkening Welding Helmet - Manual (Page 20)

ProPlus Auto-Darkening Welding Helmets
20 Manual 0-5276
• SENSITIVITY CONTROL
Press “FUNC” button to choose “SENSITIVITY”(See Fig. 9-6/9-7: A&B).
Use Sensitivity Control “UP” and “DOWN” buttons to make the lens more or less sensitive to arc light of different welding processes (See
Fig. 9-6/9-7: C&D). Sensitivity setting 5-10 is the normal setting for everyday use. The sensitivity ranges for each mode are as below:
NOTE
A lens sensitivity of 10 turns the lens permanently dark.
Weld Mode − Sensitivity No. 0-10 (See Fig. 9-6)
8a Art # A-11802
Figure 9-6 Sensitivity Control- Weld Mode
Cutting Mode −Sensitivity No. 0-10 (See Fig. 9-7)
8b
Art # A-11803
Figure 9-7 Sensitivity Control- Cutting Mode
Grind Mode −No sensitivity adjustment
For optimum performance, it is recommended to set sensitivity to the maximum at the beginning and then gradually reduce it, until the
filter reacts only to the welding light flash and without flickering due to ambient light conditions (direct sun, intensive artificial light,
neighbouring welder’s arcs etc.).
It may be necessary to adjust helmet sensitivity to accommodate different lighting conditions or if lens is flashing On and Off. Adjust
helmet sensitivity as follows: Adjust helmet sensitivity in lighting conditions helmet will be used in.
• Press Sensitivity “DOWN” button to lower setting to 0.
• Face the helmet in the direction of use, exposing it to the surrounding light conditions.
• Press Sensitivity “UP” button repeatedly until the lens darkens, then press “DOWN” button until lens clears. Helmet is ready for
use. Slight readjustment may be necessary for certain applications or if lens is flashing on and off.
• When sensitivity is set level 10, the filter will remain dark for special welding application under both WELD MODE and CUTTING
MODE. With this setting, the welding helmet will NOT automatically turn off after half an hour not use.