Miller Pro-Hobby Series Manuel - Page 14

Parcourez en ligne ou téléchargez le pdf Manuel pour {nom_de_la_catégorie} Miller Pro-Hobby Series. Miller Pro-Hobby Series 20 pages. Auto-darkening helmets

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Never use solvents or abrasive cleaning detergents. Do not immerse the lens assembly in water.

The helmet requires little maintenance. However, for best performance clean

after each use. Using a soft cloth dampened with a mild soap and water solution,

wipe the cover lenses clean. Allow to air dry. Occasionally, the filter lens and

sensors should be cleaned by gently wiping with a soft, dry cloth.

Trouble

Auto lens not On; lens

does not darken momen-

tarily when the On button

is pressed.

Auto lens not switching;

lens stays light and does

not darken when welding.

Auto lens not Switching;

lens stays dark after the

weld arc is extinguished,

or the lens stays dark

when no arc is present.

Sections of the auto-lens

are not going dark; distinct

lines separate the light and

dark areas.

Auto lens switching or

Flickering; lens darkens

then lightens while the

welding arc is present.

Inconsistent or lighter

auto-lens shading in the

dark-state, noticeable on

the outside edges and

corners.

OM-231 425 Page 12

SECTION 8 − MAINTENANCE

SECTION 9 − TROUBLESHOOTING

Check batteries and verify they are in good condition and installed

properly. Also, check battery surfaces and contacts and clean if

necessary.

Stop welding immediately: Press the On button on variable shade

helmets. On fixed-shade helmets, make sure the lens solar cell is

properly charged by placing the helmet in direct sunlight for 20

minutes. If power is on, review the sensitivity recommendations

and adjust sensitivity. Clean lens cover and sensors of any ob-

structions. Make sure the sensors are facing the arc; angles of

45_ or more may not allow the arc light to reach the sensors.

Fine-tune the sensitivity setting by making small adjustments to

the control by turning it toward the "min" setting. In extreme light

conditions, it may be necessary to reduce the surrounding light

levels.

Stop welding immediately: The auto-lens may be cracked which

can be caused by the impact of dropping the helmet. Weld spatter

on the auto lens may also cause cracking. (The lens may need to

be replaced; most cracked lenses are not covered by warranty).

Review the sensitivity setting recommendations and increase the

sensitivity if possible. Be sure the arc sensors are not being

blocked from direct access to the arc light. Check the lens cover

for dirt and spatter that may be blocking the arc sensors. Increas-

ing Lens Delay to Fast position may also reduce switching.

Referred to as an angle of view effect, auto-darkening lenses

have an optimum viewing angle. The optimum viewing angle is

perpendicular or 90_ to the surface of the auto-lens. When that

angle of view varies in the dark-state, welders may notice slightly

lighter areas at the outside edges and the corners of the lens. This

is normal and does not represent any health or safety hazard.

This effect may also be more noticeable in applications where

magnifying lenses are used.

Remedy