Clarke GWH8 Bedienungsanleitung

OPERATION & MAINTENANCE

INSTRUCTIONS

ORIGINAL INSTRUCTIONS GC08/23

ARC ACTIVATED HEADSHIELD

MODEL NO: GWH8

PART NO: 6000714

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

INTRODUCTION

Thank you for purchasing this CLARKE Headshield. Before attempting to use

this product, please read this manual thoroughly and follow the instructions

carefully. In doing so you will ensure the safety of yourself and that of others

around you, and you can look forward to your purchase giving you long and

satisfactory service.

GUARANTEE

This product is guaranteed against faulty manufacture for a period of 12

months from the date of purchase. Please keep your receipt which will be

required as proof of purchase.

This guarantee is invalid if the product is found to have been abused or

tampered with in any way, or not used for the purpose for which it was

intended.

Faulty goods should be returned to their place of purchase, no product can

be returned to us without prior permission.

This guarantee does not effect your statutory rights.

TECHNICAL DATA

Viewing field (W x H) 100 X 93 mm

Shade available in Light State DIN4

Shade available in Dark State DIN 5-9 / 9-13

UV/IR protection Max shade DIN16

Operating temperature range -5oC - +55oC

Weight 0.56 kg

Switching time from light to dark 1/25,000 second or 0.04 m/s

Delay time from dark to light 0.15 - 0.08 second

Lens power control Manual step-less control

Power supply Solar Cells / Lithium Battery type Cr2032

Construction material Plastic (nylon)

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

SAFETY PRECAUTIONS

This mask is not suitable for laser welding, laser cutting or overhead welding

applications or for oxy-acetylene.

• The protective plate in this headshield is breakable and will not protect

against impact hazards.

• This headshield is designed for use in grinding, arc welding or cutting

applications such as MIG/MAG, TIG, MMA, Plasma Arc, and Carbon Arc.

• Use this headshield for face and eye protection against harmful rays,

sparks and spatter from welding and cutting.

• NEVER place this product on a hot surface.

• In the event of failure, the headshield gives protection against UV and IR

radiation.

• DO NOT make any modifications to this product. Protection can be

seriously impaired if modifications are made.

• When necessary, use identical replacement parts. This will ensure that the

safety of the product is maintained.

• DO NOT use without the protective plate installed. DO NOT use if any part

of the headshield is cracked or broken.

• DO NOT use this headshield for welding outside the range of DIN 9-13.

Harm to the eyes and impaired eyesight may result. Always select the

correct setting before use.

ENVIRONMENTAL RECYCLING POLICY

Through purchase of this product, the customer is taking on the

obligation to deal with the WEEE in accordance with the WEEE

regulations in relation to the treatment, recycling & recovery and

environmentally sound disposal of the WEEE.

In effect, this means that this product must not be disposed of with general

household waste but according to the laws governing Waste Electrical and

Electronic Equipment (WEEE) at a recognised disposal facility.

The light source contained in this worklight has a life expectancy of

approximately 30,000 hours after which the worklight should be disposed of in

an environmentally responsible way.

The Lithium Ion battery falls under the Waste Batteries and Accumulators

Regulations 2009 and should be disposed of in a controlled manner.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

PREPARATION

ADJUSTING THE HEADBAND TO FIT

1. The headband should be

adjusted both in diameter and

height to fit the wearer’s head. To

do this, press in and turn the

adjustment knob on the back of

the headband either left or right

to expand or contract the

headband.

2. The top headbands can be

adjusted by bending the strap

and positioning the pegs in the

appropriate hole in each headband.

3. The working position of the headshield and its raised position can be pre-

set.

4. Loosen the adjusting nuts until you

can lift the adjusting tab and

position it on the pins on the

backing plate to set the

headband range of movement.

Tighten the adjusting nut when

satisfied.

• You can remove the

headband completely from

the headshield by unscrewing

the side knobs.

USING THE HEADSHIELD

1. The lens will be set to Light DIN 4 state, & you will be able to see the

workpiece. The lens will automatically darken when an arc is struck.

2. Test the lens by striking an arc on the workpiece for the first time. Check

also that the outer screen and lens are clean and clear at all times.

3. Change the shade setting as required using the shade adjustment knob as

described on page 5. Refer to the table on page 7.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

SELECTING WELD OR GRIND SETTING

The headshield has a ‘GRIND’ setting,

on the outside selector knob. When

set to ‘GRIND’ the auto darkening

function is disabled.

The headshield then provides eye

and face protection for sparks and

airborne particles created during

grinding operations.

DELAY TIME ADJUSTMENT

The delay time is the time taken to

switch back from fully dark to fully

light and is selected using the knob in

the centre of the headshield.

1. Set the minimum (0.1-0.25 sec)

when spot welding, or doing short

or seam welding work.

2. Set the delay to medium for most

welding operations.

3. Set the maximum (0.85-1.0 sec)

when doing high current welding.

SENSITIVITY

The sensitivity can be adjusted using the knob on the left hand side of the

headshield according to the type of welding and the background light. The

mid range selection is suitable for most indoor and outdoor welding.

1. Select maximum for low current welding or when working in low light

conditions, especially when welding argon arc with a low current.

2. Select minimum for high current welding or working in a brightly lit

environment.

WARNING: IT IS ESSENTIAL THAT AFTER USING THE HEADSHIELD IN

GRINDING MODE, IT SHOULD BE RETURNED TO THE WELD SETTING BEFORE

WELDING. FAILURE TO DO THIS COULD LEAD TO EYE INJURY. MAKE A

HABIT OF RETURNING THE SWITCH TO THE WELD SETTING.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

SELECT THE SHADE SETTING

WARNING: DO NOT USE FOR WELDING OUTSIDE THE RANGE OF DIN 9-13. INJURY

TO THE EYES & LOSS OF EYESIGHT MAY BE CAUSED.

On striking an arc, the light created will activate the solar cell and the window

will automatically darken to a preset level. The lithium battery will provide the

necessary energy to operate the headshield when there is no arc light. You

can adjust this shade level using the shade adjustment knob on the side of the

headshield, corresponding to the type of welding process.

1. Set the shade selector to the

required setting.

2. During the welding operation the

lens will automatically darken to

the pre-set shade. On removal of

the arc, the lens will return to the

light state.

Check the table to determine which

you should select.

Shade numbers according to BS 379, DIN 4647-1 and EN 169

WARNING: IT IS ESSENTIAL THAT AFTER USING THE HEADSHIELD IN

GRINDING MODE, IT SHOULD BE RETURNED TO THE CORRECT SETTING

BEFORE WELDING. FAILURE TO DO THIS COULD LEAD TO EYE INJURY.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

CARE & MAINTENANCE

Damaged components must be replaced immediately to avoid risk of eye

and face injuries. Periodically inspect the filter cartridge and lenses. Cracked,

pitted or scratched lenses reduce vision and seriously reduce the level of

protection and should be replaced with genuine, certified spare parts.

NEVER use sharp tools to remove foreign material sticking to the outer lens

cover. This may cause damage leading to poor function and invalidate the

warranty.

The outer screen can be removed for

replacement and cleaning of the

front lens. It sits in a groove on each

side of the opening and can be

prized it out by carefully inserting a

suitable blade into the slot provided.

The cartridge can be wiped with a

household glass cleaner when dirty.

Apply the cleaner with a clean cloth

or paper towel. DO NOT USE

ALCOHOL TO CLEAN. DO NOT APPLY

CLEANER DIRECTLY TO THE CARTRIDGE.

Clean all lenses with a soft tissue and suitable lens cleaning fluid. DO NOT use

solvents. NEVER use tools or other sharp objects to remove material from the

lens or screen. This may cause damage which may cause incorrect function

and invalidate the warranty. Store the unit in it’s box or similar safe place.

The outer lens cover can be removed for replacement if damaged and may

need replacing regularly.

• Two replacement outer lens covers are supplied with the

headshield.

The inner lens cover may also require cleaning. Lift and slide the inside lens

cover (on the operators side of the filter cartridge) free from the filter

cartridge.

• A single replacement is supplied with this headshield.

Clean the filter surface, sensors and solar cells regularly by wiping with a

household glass cleaner. Apply the cleaner with a clean cloth or paper towel.

DO NOT USE ALCOHOL TO CLEAN. DO NOT APPLY CLEANER DIRECTLY TO THE

CARTRIDGE.

Clean the headshield shell and sweat bands with detergent if necessary.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

BATTERY REPLACEMENT

The batteries should last

approximately 5000 hours of normal

use. If the LOW BATTERY lamp comes

on, the battery should be replaced.

Prise and slide the cover from the

battery storage compartment.

• A small screwdriver blade will

be required to remove the

cover and a pair of tweezers to

extract the batteries.

• 2 x CR2032 batteries are

required.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

COMPONENT PARTS

The GWH8 is supplied with the following;

• Small inner lens cover

• 2x Large outer lens covers

1 Shell 9 Lefthand Tab Washer

2 Front Cover Lens 10 Angle Adjustable Washer

3 Auto-Darkening Filter 11 Washer

4. Inside Cover Lens 12 Adjusting Nut

5Frame 13RighthandTabWasher

6Nuts 14Screw

7 Thumbscrew 15 Adjustable Headband

8Sweatband

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

DECLARATION OF CONFORMITY -UK

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