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Sensitivity

The programming and sensitivity of the photo detector system (which responds to the light from the welding arc) can be adjusted to accommodate a variety of welding methods and workplace conditions. In order to see the current sensitivity setting, momentarily press the SENS button. To select another setting, press the SENS button repeatedly until the LED shows the desired setting.

Position

Locked in light state (shade 3) at all times

 

Used for grinding

Position 1

Least sensitive setting. Used if there is interference

 

from other welders’ arcs in the vicinity.

Position 2

Normal position. Used for most types of welding

 

indoors and outdoors.

Position 3

Position for welding with low current or with stable

 

welding arcs. (eg TIG welding)

Position 4

Suitable for very low current welding, use of inverter-

 

type TIG welding machines.

Position 5

Most sensitive setting. Used for TIG welding where

 

part of the arc is obscured from view.

Position

Locked in selected dark state. Same function as a

 

passive welding filter.

Position locked light state

This setting could be used for grinding or other non-welding activities. When the welding filter is locked in the light state (shade 3) the LED under the symbol will flash every 8 seconds to alert the user. The welding filter must be unlocked before arc welding is performed, by choosing a sensitivity setting for welding. When the welding filter turns OFF (after 1 hour inactivity), it will automatically leave the locked state and go to sensitivity setting 2.

Position 1-5

If the filter does not darken during welding as desired, increase the sensitivity until the welding filter switches reliably. Should the sensitivity be set too high, the filter may remain in the dark state after welding is complete due to ambient light. In this case, adjust the sensitivity downward to a setting where the welding filter both darkens and lightens as desired.

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