Matheson SelectWelding Helmets

OM-248 440B

2012−03

TABLE OF CONTENTS

SECTION 1 − WELDING HELMET SAFETY PRECAUTIONS − READ BEFORE USING 1. . . . .1-1. Symbol Usage 11-2. Arc Welding Hazards 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3. Proposition 65 Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4. Lens Shade Selection Table 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-5. Principal Safety Standards 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 2 − SPECIFICATIONS 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 3 − OPERATING INSTRUCTIONS 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1. Helmet Controls 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2. Auto On/Off Button And Low Battery Light (Variable Shade Helmets) 6. . . . . . . . . . . . . . .

3-3. Mode Control (Variable Shade Helmets) 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4. Variable Shade Control (Variable Shade Helmets) 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5. Lens Delay Control (Variable Shade Helmets) 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6. Sensitivity Control (Variable Shade Helmets) 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7. Typical Lens Adjustment Procedure (Variable Shade Helmets) 11. . . . . . . . . . . . . . . . . . . .SECTION 4 − ADJUSTING HEADGEAR 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 5 − REPLACING THE LENS COVERS 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-1. Replacing Outside Lens Cover On P10, 52F, And 62V Helmets 13. . . . . . . . . . . . . . . . . . .5-2. Replacing Outside Lens Covers On 73V Helmets 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-3. Replacing Inside Lens Cover 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 6 − REPLACING THE BATTERY 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 7 − INSTALLING OPTIONAL MAGNIFYING LENS 17. . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 8 − MAINTENANCE 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 9 − TROUBLESHOOTING 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 10 − PARTS LIST 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 11 − LIMITED WARRANTY 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OM-248 440 Page 1

SECTION 1 − WELDING HELMET SAFETY PRECAUTIONS −READ BEFORE USING

helmet 2012−02

Protect yourself and others from injury — read, follow, and save these important safetyprecautions and operating instructions.

1-1. Symbol Usage

This group of symbols means Warning! WatchOut! ELECTRIC SHOCK, MOVING PARTS,and HOT PARTS hazards. Consult symbolsand related instructions below for necessaryactions to avoid the hazards.

� Indicates special instructions.DANGER! − Indicates a hazardoussituation which, if not avoided, willresult in death or serious injury. Thepossible hazards are shown in theadjoining symbols or explained inthe text.

Indicates a hazardous situationwhich, if not avoided, could result indeath or serious injury. The possiblehazards are shown in the adjoiningsymbols or explained in the text.

NOTICE − Indicates statements not related topersonal injury.

1-2. Arc Welding Hazards

Only qualified persons should install, operate, maintain, and repair this unit.

Arc rays from the welding process produce intense visible and invisible (ultravioletand infrared) rays that can burn eyes and skin. Sparks fly off from the weld.

� Wear a welding helmet fitted with a proper shade of filter to protect your face and eyes whenwelding or watching (see ANSI Z49.1 and Z87.1 listed in Safety Standards). Refer to LensShade Selection table in Section 1-4.

� Wear approved safety glasses with side shields under your helmet.� Use protective screens or barriers to protect others from flash, glare, and sparks; warn

others not to watch the arc.� Wear protective clothing made from durable, flame-resistant material (leather, heavy cotton,

and wool) and foot protection.

• Before welding, adjust the auto-darkening lens sensitivity setting to meet the application.

• Stop welding immediately if the auto-darkening lens does not darken when the arc is struck.See the Owner’s Manual for more information.

ARC RAYS can burn eyes and skin.

Arc rays from the welding process produce intense visible and invisible (ultravioletand infrared) rays that can burn eyes and skin. Sparks fly off from the weld.

� Use impact resistant safety spectacles or goggles and ear protection at all times when usingthis welding helmet.

� Do not use this helmet while working with or around explosives or corrosive liquids.

� Do not weld in the overhead position while using this helmet.

� Inspect the auto-lens frequently. Immediately replace any scratched, cracked, or pitted coverlenses or auto-lenses.

WELDING HELMETS do not provide unlimited eye, ear, andface protection.

OM-248 440 Page 2

Noise from some processes or equipment can damage hearing.

� Wear approved ear protection if noise level is high.

NOISE can damage hearing.

READ INSTRUCTIONS.

� Read and follow all labels and the Owner’s Manual carefully before installing,operating, or servicing unit. Read the safety information at the beginning ofthe manual and in each section.

� Use only genuine replacement parts from the manufacturer.

� Perform maintenance and service according to the Owner’s Manuals, industry standards,and national, state, and local codes.

FUMES AND GASES can be hazardous.

Welding produces fumes and gases. Breathing these fumes and gases can behazardous to your health.

� Keep your head out of the fumes. Do not breathe the fumes.

� If inside, ventilate the area and/or use local forced ventilation at the arc to remove weldingfumes and gases.

� If ventilation is poor, wear an approved air-supplied respirator.

� Read and understand the Material Safety Data Sheets (MSDSs) and the manufacturer’sinstructions for metals, consumables, coatings, cleaners, and degreasers.

� Work in a confined space only if it is well ventilated, or while wearing an air-supplied respirator.Always have a trained watchperson nearby. Welding fumes and gases can displace air andlower the oxygen level causing injury or death. Be sure the breathing air is safe.

� Do not weld in locations near degreasing, cleaning, or spraying operations. The heat and raysof the arc can react with vapors to form highly toxic and irritating gases.

� Do not weld on coated metals, such as galvanized, lead, or cadmium plated steel, unless thecoating is removed from the weld area, the area is well ventilated, and while wearing an air-supplied respirator. The coatings and any metals containing these elements can give off toxicfumes if welded.

1-3. Proposition 65 Warnings

Welding or cutting equipment produces fumes or gases which contain chemicals knownto the State of California to cause birth defects and, in some cases, cancer. (CaliforniaHealth & Safety Code Section 25249.5 et seq.)

This product contains chemicals, including lead, known to the state of California to causecancer, birth defects, or other reproductive harm. Wash hands after use.

OM-248 440 Page 3

1-4. Lens Shade Selection Table

Process Electrode Sizein. (mm)

Arc Current in

Amperes

MinimumProtectiveShade No.

SuggestedShade No.(Comfort)*

Shielded Metal ArcWelding (SMAW)

Less than 3/32 (2.4)3/32−5/32 (2.4−4.0)5/32−1/4 (4.0−6.4)More than 1/4 (6.4)

Less than 6060−160160−250250−550

781011

−−101214

Gas MetalArc Welding

(GMAW)

Flux CoredArc Welding

(FCAW)

Less than 6060−160160−250250−500

7101010

−−111214

Gas Tungsten ArcWelding (TIG)

Less than 5050−150150−500

8810

101214

Air CarbonArc Cutting (CAC-A)

LightHeavy

Less than 500500−1000

1011

1214

Plasma ArcCutting (PAC)

Less than 2020−4040−6060−8080−300300−400400−800

45688910

456891214

Plasma Arc Welding(PAW)

Less than 2020−100100−400400−800

681011

6−8101214

Reference: ANSI Z49.1:2005

* Start with a shade that is too dark to see the weld zone. Then, go to a lighter shade which gives asufficient view of the weld zone without going below the minimum.

1-5. Principal Safety Standards

Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1, is available as a free down-load from the American Welding Society at http://www.aws.org or purchased from Global EngineeringDocuments (phone: 1-877-413-5184, website: www.global.ihs.com).Safe Practice For Occupational And Educational Eye And Face Protection, ANSI Standard Z87.1,from American National Standards Institute, 25 West 43rd Street, New York, NY 10036 (phone:212-642-4900, website: www.ansi.org).

OM-248 440 Page 4

SECTION 2 − SPECIFICATIONS

Specification

SelectPassive No. 10

Helmet(P10)

SelectFixed Shade No.

10 Helmet(52F)

Select Variable Shade

Helmet(62V)

Select Variable Shade

Helmet(73V)

ViewingField

3.9 x 3.1 in.(100 x 80 mm)

3.75 x 1.38 in.(95 x 35 mm)

3.75 x 1.38 in.(95 x 35 mm)

3.81 x 1.85 in.(97 x 47 mm)

ReactionTime

Not Applicable 1/3,600 sec(0.00028 sec)

1/20,000 sec(0.00005 sec)

1/20,000 sec(0.00005 sec)

AvailableShades

No. 10 Shade Darkened State:No. 10

Light State: No. 3 Provides

Continuous UVand IR protection

Weld ModeDarkened State:No. 8 − No. 13

Light State: No. 3

Grind ModeLight State: No. 3

Weld ModeDarkened State:No. 8 − No. 13

Light State: No. 3

Cut ModeDarkened State:

No. 5 − No. 8Light State: No. 3

Grind ModeLight State: No. 3

SensitivityControl

Not Applicable Not Applicable Adjusts For Varying Ambient LightAnd Welding Arc

DelayControl

Not Applicable Not Applicable Slows Lens Dark-To-Light State(Slow − Fast)

AutomaticPower Off

Not Applicable Shuts Lens Off 40 − 45 Minutes After Last Arc Is Struck

Low BatteryIndicator

Not Applicable Not Applicable Red LED Lights To Indicate BatteryWill Only Provide 2−3 Days Of

Operation

PowerSupply

Not Applicable Rechargeable,Non-Replaceable

Solar Cell

CR2450 Lithium Batteries(Miller Part No. 217 043)

Sensors Not Applicable Independent/Redundant (Two)

Independent/Redundant (Two)

Independent/Re-dundant (Three)

OperatingTemperature

Not Applicable 14�F to 131�F / −10�C to +55�C

� When stored in extremely cold temperatures, warm hel-met to ambient temperature before welding.

StorageTemperature

Not Applicable −4�F to 158�F / −20�C to +70�C

� When stored in extremely cold temperatures, warm hel-met to ambient temperature before welding.

Total Weight 14.1 oz. (398.6 g) 16 oz. (453.6 g) 16 oz. (453.6 g) 17 oz. (481 g)

Standards ANSI Z87.1+(2010) and CSA

Warranty 30 Days Limited(Section 11)

Two Years From Date Of Purchase(See Section 11)

OM-248 440 Page 5

SECTION 3 − OPERATING INSTRUCTIONS

3-1. Helmet Controls

� Three different lens assem-blies are shown. Refer to the il-lustration that matches thelens on your helmet.

Variable Shade Model s

1 Auto On/Off Button (SeeSection 3-2)

2 Grind Mode / Low BatteryLight (Section 3-2)

3 Mode Control Button(See Section 3-3)

4 Display Screen

5 Lens Adjustment Buttons(Sections 3-3 Thru 3-6)

� Use adjustment buttons tochange shade, delay, andsensitivity settings.

� The lens assembly saves theshade, sensitivity, and delaysettings.

Fixed Shade No. 10 Model

The fixed shade model has no but-tons or controls. The lens turns on(darkens) automatically whenwelding begins and turns off whenwelding stops.

� Always make sure the lens isfully charged before welding.Place helmet in direct sunlightfor 20 minutes to charge thelens assembly solar cell.

804 792

(73V) Variable Shade Lens Assembly

(52F) Fixed Shade No. 10 Lens Assembly

1

2

3

5

4

(62V) Variable Shade Lens Assembly

OM-248 440 Page 6

3-2. Auto On/Off Button And Low Battery Light (Variable Shade Helmets)

1 Auto On/Off Button

Press On/Off button to check if thelens is working properly and to be-gin lens shade, sensitivity, anddelay adjustments.

When the On/Off button is pressed,the lens should darken and return tothe clear state. Do not use the hel-met if the lens does not function asdescribed. (See Section 9, Trouble-shooting.)

2 Grind / Low Battery Light

The Grind / Low Battery light blinkswhen the lens is in the Grind mode.Light stays on when 2−3 days ofbattery life remain.

If battery power is low, replace withCR2450 lithium batteries (2 re-quired − Miller Part No. 217 043).See Section 6.

1

2

(73V)Variable Shade Lens Assembly Shown

OM-248 440 Page 7

3-3. Mode Control (Variable Shade Helmets)

1 Mode Control Button

Press Mode button to select the modeappropriate for the work activity:

Weld Mode − used for most weldingapplications. In this mode the lensturns on when it optically senses awelding arc. Adjust shade, sensitivity,and delay settings as needed.

Cut Mode − used for cutting applica-tions. In this mode the lens turns onwhen it optically senses a cutting arc.Adjust shade, sensitivity, and delaysettings as needed.

� Cut mode is not present on 62V or52F helmets.

Grind Mode − used for metal grindingapplications. In this mode the shade isfixed shade No. 3. No lens adjust-ments are possible.

1

(73V) Variable Shade Lens Assembly

OM-248 440 Page 8

3-4. Variable Shade Control (Variable Shade Helmets)

1 Variable ShadeAdjustment Buttons

2 Mode Control ButtonUse the LTR and DKR ad-justment buttons to adjustthe lens shade in the dark-ened state. Use the table inSection 1-4 to select propershade control setting basedon your welding process.The shade ranges for eachmode are as follows:

Weld − No. 8 − No. 13Cut − No. 5 − No. 8Grind − No. 3 only

Start at the highest settingand adjust lighter to suit theapplication and your person-al preference.

Variable Shade Adjust-ment Procedure

� Press Auto On/Off but-ton to turn lens On. Hel-met lens will darkentwice and then clear.

� Press Mode ControlButton to select desiredfunction: Weld, Cut, orGrind mode.

� Cut mode is not presenton 62V or 52F helmets.

� Use LTR and DKR ad-justment buttons to se-lect desired shade.

� Begin welding or contin-ue with other lens ad-justments.

21

(73V) Variable Shade Lens Assembly

OM-248 440 Page 9

3-5. Lens Delay Control (Variable Shade Helmets)

1

1 Lens Delay AdjustmentButtons

2 Mode Control ButtonUse the Lens Delay Shortand Long buttons to adjustthe time for the lens to switchto the clear state after weld-ing or cutting.

The delay is particularly use-ful in eliminating bright af-ter-rays present in higher am-perage applications wherethe molten puddle remainsbright momentarily afterwelding. Use the Lens DelayControl buttons to adjustdelay from 0 to 10 (0.1 to 1.0second).

The delay ranges for eachmode are as follows:

Weld And Cut Modes − 0 −10

Grind Mode − No delay ad-justment

� There is no lens delayadjustment in the Grindmode, and in the Cutmode (when sensitivity isset to 10).

Lens Delay AdjustmentProcedure

� Press Auto On/Off but-ton to turn helmet On.Helmet lens will darkentwice and then clear.

� Press Mode button to se-lect desired function:Weld or Cut mode.

� Use Short and Long ad-justment buttons to se-lect desired delay.

� Begin welding or contin-ue with other lens adjust-ments.

2

(73V) Variable Shade Lens Assembly

OM-248 440 Page 10

3-6. Sensitivity Control (Variable Shade Helmets)

1 Sensitivity AdjustmentButtons

2 Mode Control ButtonUse control to make the lensmore responsive to differentlight levels in various weld-ing processes. Use a Mid-Range or 30−50% sensitiv-ity setting for most ap-plications.It may be necessary to adjusthelmet sensitivity to accom-modate different lighting con-ditions or if lens is flashingOn and Off.The sensitivity ranges foreach mode are as follows:Weld, Cut Modes − 0 − 10Grind Mode − No sensitivityadjustment

! Do not weld in theGrind mode; thelens will not darken.

� Cut mode is not presenton 62V or 52F helmets.

Sensitivity AdjustmentProcedure

� Adjust helmet sensitivityin lighting conditions hel-met will be used in.

� Press Auto On/Off but-ton to turn helmet On.Helmet lens will darkentwice and then clear.

� Press Mode button toselect desired function:Weld or Cut Mode.

� Use Sensitivity Less andMore buttons to adjustsensitivity control to low-est setting.

� Face the helmet in the di-rection of use, exposingit to the surrounding lightconditions.

� Press sensitivity Morebutton until the lensdarkens, then pressLess button until lensclears. An alternativemethod is to press andhold the Less button untilthe lens clears.

Helmet is ready for use.Slight readjustment maybe necessary for certainapplications or if lens isflashing on and off.

� Reduce Sensitivity set-ting if lens stays darklonger than Delay set-ting.

2

1

(73V) Variable Shade Lens Assembly

Recommended Sensitivity Settings

Stick Electrode Mid-Range

Short Circuiting (MIG) Low/Mid-Range

Pulsed & Spray (MIG) Mid-Range

Gas Tungsten Arc (TIG) Mid/High-Range

Plasma Arc Cutting/Welding Low/Mid-Range

OM-248 440 Page 11

3-7. Typical Lens Adjustment Procedure (Variable Shade Helmets)

� Lens assembly displays priorsettings when turned On. Re-tained settings are not shownin example.

� In the Grind mode the lens is afixed shade No. 3. No lens ad-justments are possible.

� Cut mode is not present on 62Vor 52F helmets.

Adjusting Lens Assembly:

� Turn lens On. Display screenappears.

� Select mode (Weld, Cut,Grind).

� Select shade by pressing LTRand DKR buttons.

� Select Delay by pressingShort and Long buttons.

� Select Sensitivity by pressingLess and More Buttons.

� Begin work.

OM-248 440 Page 12

SECTION 4 − ADJUSTING HEADGEAR

� There are four headgear ad-justments: headgear top,tightness, distance adjust-ment, and angle adjustment.

1 Headgear Top Adjustment

Adjusts headgear for properdepth on the head to ensure cor-rect balance and stability.

2 Headgear TightnessAdjustment

Adjusts headgear for a secure fit.To adjust, push in the adjustingknob located on the back of theheadgear. Turn knob left or rightto obtain desired tightness.

� If adjustment is limited, it maybe necessary to remove thecomfort cushion.

3 Distance Adjustment

Adjusts the distance between theface and the lens. To adjust, loos-en both outside tension knobsand press inward to free from ad-justment slots. Move forward orback to desired position and re-tighten. (Both sides must beequally positioned for proper vi-sion.)

4 Angle Adjustment

Four pins on the right side of theheadband top provide adjustmentfor the forward tilt of the helmet. Toadjust, loosen the right outsidetension adjustment knob then lifton the control arm tab and moveit to the desired position. Retigh-ten tension adjustment knob.

� When using the back dis-tance adjustment position,only the back three angle ad-justment pins can be used.

804 793

1

2

3

4

OM-248 440 Page 13

SECTION 5 − REPLACING THE LENS COVERS

5-1. Replacing Outside Lens Cover On P10, 52F, And 62V Helmets

! Never use the auto-darkeninglens without the inside andoutside lens covers properlyinstalled. Welding spatter willdamage the auto-darkeninglens and void the warranty.

1 Outside Lens Cover Frame

2 Lens Cover

3 Gasket

Remove lens cover frame by grasp-ing the outside corners and pullingthe frame away from the helmet.

Remove lens cover and gasket fromthe six-prong lens frame. Replacelens cover and reinstall gasket andlens in frame. Reinstall frame in hel-met.

� Be sure the flat side of lens gas-ket faces the six-prong lensframe.

� Be sure all six prongs of lensframe are securely fastened inslots in helmet.1

804 794

1

2

3

Be sure flat side of gasketfaces lens frame.

OM-248 440 Page 14

5-2. Replacing Outside Lens Covers On 73V Helmets

! Never use the auto-darkeninglens without the inside andoutside lens covers properlyinstalled. Welding spatter willdamage the auto-darkeninglens and void the warranty.

1 Front Lens Holder

2 Release Points

3 Lens Cover

4 Gasket

Remove front lens holder by press-ing release points and pulling theholder away from the helmet.

Remove lens cover and gasket fromthe holder. Replace lens cover andreinstall gasket and lens in holder.Reinstall holder in helmet.

� Be sure the flat side of lenscover gasket faces the lens cov-er holder.

8804 814 / 804 816

1 2

Be sure flat side of gasketfaces lens cover holder.

2

4

3

OM-248 440 Page 15

5-3. Replacing Inside Lens Cover

! Never use the auto-darkeninglens without the inside and out-side lens covers properlyinstalled. Welding spatter willdamage the auto-darkeninglens and void the warranty.

1 inside Lens Cover

Remove the inside lens cover by pry-ing the lens up at the thumbnail open-ing located at the top center of the lenscover.

Replace the lens cover by gently bow-ing it in the center and inserting it, oneend at a time, into the retaining clipslocated on the outside of the auto-darkening lens assembly.

� Be sure the cover lens is seatedproperly (flat) to prevent fogging.

804 793 / 804 794

1

OM-248 440 Page 16

SECTION 6 − REPLACING THE BATTERY

To replace the batteries, re-move the auto-darkening lensassembly (see Section 5).

1 Battery Tray

After removing the lens as-sembly, slide the battery hold-ing trays out and remove theold batteries.

Replace with CR2450 lithiumtype batteries (2 required) orequivalent (Miller Part No.217043).

� Be sure Positive (+) side ofthe battery faces up (to-ward inside of helmet).

Reinstall the battery trays. Totest, press the On button. Thedisplay screen should turn on.Reinstall the lens assembly.

� Left and right battery traysare not interchangeable.The auto−darkening hel-met will not work if batterytrays are installed on thewrong sides.

Be sure Positive(+) side of batteryfaces up.

62V Lens

73V Lens

1

1

OM-248 440 Page 17

SECTION 7 − INSTALLING OPTIONAL MAGNIFYING LENS

1 Outside Lens Cover Frame

2 Optional Magnifying Lens

Remove lens cover frame bygrasping the outside corners andpulling the frame away from the hel-met.

Remove the auto-darkening lensassembly by gently lifting the hel-met lip above the assembly andpushing assembly free of the re-taining brackets.

Starting at the top, slide magnifyinglens into the helmet retaining brack-ets. Position the lens tightly againstthe bottom holding pins.

Reinstall auto-darkening lens as-sembly and lens cover frame.

Lift helmet lip with thumband push lens out.

804 794 / 804 795

1

2

OM-248 440 Page 18

SECTION 8 − MAINTENANCE

� 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. Usinga soft cloth dampened with a mild soap and water solution, wipe the cover lenses clean. Allow to airdry. Occasionally, the filter lens and sensors should be cleaned by gently wiping with a soft, dry cloth.

SECTION 9 − TROUBLESHOOTING

� Troubleshooting information is for varia-ble and fixed shade auto-darkeningmodels only.

Trouble Remedy

Auto lens not on; lensdoes not darken momen-tarily when the Reset but-ton is pressed (variableshade models only).

Variable shade models: check batteries and verify they are ingood condition and installed properly. Check battery surfaces andcontacts and clean if necessary.

Fixed Shade No. 10 models: make sure the lens solar cell is prop-erly charged by placing the helmet in direct sunlight for 20minutes.

Auto lens not switching;lens stays light and doesnot darken when welding.

Stop welding immediately.

On variable shade helmets, press Auto On/Off button. If power ison, review the sensitivity recommendations and adjust sensitivity.

On fixed-shade helmets, make sure the lens solar cell is properlycharged by placing the helmet in direct sunlight for 20 minutes.

On all helmets, clean lens cover and sensors of any obstructions.Make sure the sensors are facing the arc; angles of 45� or moremay not allow the arc light to reach the sensors.

Auto lens not Switching;lens stays dark after theweld arc is extinguished,or the lens stays darkwhen no arc is present.

On variable shade helmets, fine-tune the sensitivity setting byturning it toward the “min” setting. In extreme light conditions, itmay be necessary to reduce the surrounding light levels.

Sections of the auto-lensare not going dark; distinctlines separate the light anddark areas.

Stop welding immediately.

The auto-lens may be cracked which can be caused by the im-pact of dropping the helmet. Weld spatter on the auto lens mayalso cause cracking. (The lens may need to be replaced; mostcracked lenses are not covered by warranty).

Auto lens switching orflickering; lens darkensthen lightens while thewelding arc is present.

On variable shade helmets, review the sensitivity setting recom-mendations and increase the sensitivity if possible. IncreasingLens Delay to Fast position may also reduce switching.

On all helmets, be sure the arc sensors are not being blockedfrom direct access to the arc light. Check the lens cover for dirtand spatter that may be blocking the arc sensors.

Inconsistent or lighterauto-lens shading in thedark-state, noticeable onthe outside edges andcorners.

Referred to as an angle of view effect, auto-darkening lenseshave an optimum viewing angle. The optimum viewing angle isperpendicular or 90� to the surface of the auto-lens. When thatangle of view varies in the dark-state, welders may notice slightlylighter areas at the outside edges and the corners of the lens. Thisis normal and does not represent any health or safety hazard.This effect may also be more noticeable in applications wheremagnifying lenses are used.

OM-248 440 Page 19

SECTION 10 − PARTS LIST

10

8

7

9

4

3

2

1

5

6

11

Ref. 804 796

12

Figure 10-1. Auto-Darkening Welding Helmet(62V And 52F Models)

OM-248 440 Page 20

DescriptionPartNo.

ItemNo. Quantity

Figure 10-1. Auto-Darkening Welding Helmet(62V And 52F Models)

1 256 512 Helmet Shell, White 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 231 410 Lens Cover, Inside (4.25 x 1.75 in.) (5 Per Pkg.) 1. . . . . . . . . . . . . . . . . . . . . . . . . .3 256 508 Auto-Darkening Lens Assy. (Variable Shade) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 248 432 Auto-Darkening Lens Assy. (Fixed Shade No. 10) 1. . . . . . . . . . . . . . . . . . . . . . . . .

256 729 Cover, Battery (Variable Shade) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 231 412 Gasket, Front Lens 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 231 411 Lens, Front Cover (4.5 x 3.6875 in.) (5 Per Pkg.) 1. . . . . . . . . . . . . . . . . . . . . . . . . .6 256 510 Holder, Front Lens (White) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 770 246 Ratchet Headgear Assy. 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 770 248 Adjustment Angle/Stop Hardware Kit 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 770 249 Headband, Fabric 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 ♦216 336 Comfort Cushion, Foam Rubber 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 237 993 Bag, Helmet 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

♦079 975 O-Rings, Replacement (For Item 8) (5 Per Pkg.) 1. . . . . . . . . . . . . . . . . . . . . . . . . .♦222 003 Adapters, Hard Hat (Not Shown) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12 ♦212 235 Lens, 0.75 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 236 Lens, 1.00 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 237 Lens, 1.25 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 238 Lens, 1.50 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 239 Lens, 1.75 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 240 Lens, 2.00 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 241 Lens, 2.25 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 242 Lens, 2.50 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

♦Optional

OM-248 440 Page 21

11

804 814

1

2

3

4

5

6

12

10

8

7

9

Figure 10-2. 73V Auto-Darkening Welding Helmet

OM-248 440 Page 22

DescriptionPartNo.

ItemNo. Quantity

Figure 10-2. 73V Auto-Darkening Welding Helmet

1 256 513 Helmet Shell, White 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 770 237 Lens Cover, Inside (4.25 − 2.0 in) (5 Per Pkg.) 1. . . . . . . . . . . . . . . . . . . . . . . . . . .3 256 509 Auto-Darkening Lens Assy. 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

256 730 Battery Tray Kit (Left/Right) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 232 028 Gasket, Front Lens 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 231 921 Lens, Front Cover (4.5 x 5.5 in) (5 Per Pkg.) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 256 511 Holder, Front Lens (White) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 770 246 Ratchet Headgear Assy. 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 770 248 Adjustment Angle/Stop Hardware Kit 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 770 249 Headband, Fabric 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 ♦216 336 Comfort Cushion, Foam Rubber 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 ♦237 993 Bag, Helmet 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

♦079 975 O-Rings, Replacement (For Item 8) (5 Per Pkg.) 1. . . . . . . . . . . . . . . . . . . . . . . . . .♦222 003 Adapters, Hard Hat (Not Shown) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12 ♦212 235 Lens, 0.75 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 236 Lens, 1.00 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 237 Lens, 1.25 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 238 Lens, 1.50 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 239 Lens, 1.75 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 240 Lens, 2.00 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 241 Lens, 2.25 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ♦212 242 Lens, 2.50 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

* Adjustment Hardware Kit With O-rings

♦Optional

OM-248 440 Page 23

1

2

3

4

5

6

7

8

9

10

11

12

13

Figure 10-3. Passive No. 10 (P10) Welding Helmet

OM-248 440 Page 24

DescriptionPartNo.

ItemNo. Quantity

Figure 10-3. Passive No. 10 (P10) Welding Helmet

1 256 512 Helmet Shell, White 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 248 438 Lens Cover, Inside (5 Per Pkg.) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 248 431 Passive Lens, No. 10 Shade 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 248 437 Holder, Passive Lens 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 231 412 Gasket, Front Lens 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 231 411 Lens, Front Cover (4.5 x 5.5 in.) (5 Per Pkg.) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 256 510 Holder, Front Lens (White) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 770 246 Ratchet Headgear Assy. 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 770 248 Adjustment Angle/Stop Hardware Kit 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 770 249 Headband, Fabric 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 ♦216 336 Comfort Cushion, Foam Rubber 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 237 993 Bag, Helmet 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

♦079 975 O-Rings, Replacement (For Item 8) (5 Per Pkg.) 1. . . . . . . . . . . . . . . . . . . . . . . . . .♦222 003 Adapters, Hard Hat (Not Shown) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13 ♦212 235 Lens, 0.75 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 ♦212 236 Lens, 1.00 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 ♦212 237 Lens, 1.25 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 ♦212 238 Lens, 1.50 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 ♦212 239 Lens, 1.75 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 ♦212 240 Lens, 2.00 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 ♦212 241 Lens, 2.25 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 ♦212 242 Lens, 2.50 Magnification 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

♦Optional

SECTION 11 − LIMITED WARRANTY

LIMITED WARRANTY – Subject to the terms and conditions below. Themanufacturer warrants to its original retail purchaser that the newMatheson equipment sold after the effective date of this limited warrantyis free of defects in material and workmanship at the time it is shipped byMiller. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WAR-RANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIESOR MERCHANTABILITY AND FITNESS.

Matheson auto-darkening lens helmets are warranted for 2 years from thedate of purchase. Proof of purchase is required for warranty transactionsso it is imperative that a copy of the original invoice or sales receipt be re-tained.

For warranty transactions, contact your Matheson Distributor.Effective January 1, 2012

Notes

ORIGINAL INSTRUCTIONS © 2012 Miller Electric Mfg. Co.

Matheson Tri-Gas

150 Allen Road

Basking Ridge, NJ 07920

877-684-4427

www.mathesongas.com