magmaweld MKM 620MA Auto Darkening Welding Helmet User Manual

magmaweld MKM 620MA Auto Darkening Welding Helmet

SAFETY PRECAUTIONS

Be Sure To Follow All Safety Rules In This Manual!
Explanation Of Safety Information

• Auto-Darkening welding helmets are designed to protect the eye and face from sparks, spatter and harmful radiation under normal welding conditions.
  Auto-Darkening filter automatically changes from a light state to a dark state when an arc is struck and it returns to the light state when welding stops.

• Auto-Darkening welding helmets come ready for use. The only thing you need to do before your welding is to adjust the position of the headband and select the correct shade number for your application.

Comprehending Safety Precautions

• This Auto-Darkening welding helmet is not suitable for laser welding and oxyacetylene welding / cutting processes.
• Never place this helmet and Auto-Darkening filter on a hot surface.
• Never open or tamper with the Auto-Darkening filter.
• This Auto-Darkening welding helmet will not protect against severe impact hazards.
• This helmet will not protect against explosive devices or corrosive liquids.
• Do not make any modifications to either the filter or helmet, unless specified in this manual. Do not use replacement parts will void the warranty and expose the operator the risk of personal injury.
• Shoul this helmet not darken upon striking an arc, stop welding immediately and contact your supervisor or your dealer.
• Do not immerse the filter in water.
• Do not use any solvents on the filter screen or helmet components.
• Use only at temperatures; -10 °C ~ +60 °C (14 °F ~ 140 °F).
• Storing temperature; -20 °C ~ +70 °C (-4 °F ~ 158 °F).
• The helmet should be stored in dry cool and dark area, when not using it for a long time.
• Protect filter from contact with liquid and dirt.
• Clean the filter surface regularly; do not use strong cleaning solutions. Always keep the sensors and solar cells clean using a clean lint-free tissue.
• Regularly replace the cracked / scratched / pitted front cover lens.
• The materials which may come into contact with the wearer’s skin can cause allergic “reactions in some circumstances.

TECHNICAL INFORMATION

Technical Data

OPERATION

Before using the helmet for welding, ensure that you have read and understood the safety instructions.
The helmet comes ready assembled but before it can be used it must be adjusted to fit the user properly and set up for delay time, sensitivity and shade level.

Adjusting The Fit Of The Helmet

• The overall circumference of the headband can be made larger or smaller by rotating the knob on the back of the headband Figure 1-Y. This can be done whilst wearing the helmet and allows just the right tension to be set to keep the helmet firmly on the head without it being too tight.
• If the headband is riding too high or too low on your head, adjust the strap which passes over the top of your head. To do this, release the end of the band by pushind the locking pin out of the hole in the band. Slide the two portions of the band to a greater or lesser width as required and push the locking pin through the nearest hole Figure 1-W.
• Test the fit of the headband by lifting up and closing down the helmet a few times while wearing it. If the headband moves while tilting, re-adjust it until it is stable.

Adjusting The Distance Between The Helmet And The Face

• Undo the block nut Figure 1-T to adjust the distance between the helmet and your face in the down position
• Loosen the block nut on either side of the helmet and slide it nearer or further from your face Figure 1-Z. It is important that your eyes are each the same distance from the lens. Otherwise the darkening effect may appear uneven.
• Re-tighten the block nut when adjustment is complete.

Select Blackening Level

• Select the blackening level you need by referring to the “Blackout Selection Table” according to the type of source and current intensity you will make. By turning the Figure 2 button to the 9-10 position or by turning it to the 11-13 position, you can make precise selection from the blackening potential in Figure 3.

Set Enlightenment Time

• When the source stops, the viewing window automatically switches from dark to light. Measures can be taken against the red light that may occur after welding thanks to the setting of the lighting time. The illumination time can be adjusted from “fast” (0.1 sec.) to slow (1.0 sec.) with infinite step button.

Set Sensitivity

• Sensitivity setting can be adjusted infinitely gradually from low to high with the rotary knob.
• The medium setting is normal for daily use.
• If the ambient light is too high or there is another machine welding nearby, set the sensitivity to low.

Selection of Grinding Option

• When you set the Figure 2 button to the “Grind” position, you will get a tarnished image.

Test
You can test your dimming settings by holding down the Test button in Figure 5. It will return to its normal position when you take your hand off the button.

Power

• When the Low Battery warning led in Figure 5 lights red, the battery should be replaced. 1 x CR 2032 Lithium Battery

Blackening Selection Table

• SMAW: Stick Electrode Welding
• TIG, GTAW: Tungsten Arc Welding
• PAC: Plasma Arc Cutting
• SAW: Submerged Arc Welding
• MIG (Light): MIG Welding in Light Metals
• MIG (Heavy): MIG Welding in Heavy Metals
• PAW: Plasma Arc Welding
• MAG / CO2: Metal Active Gas Source

MAINTENANCE AND SERVICE

To Replace the Solarmatik Cartridge

• As shown in Figure 6a, unlock the cartridge by opening the holder lock. Disconnect the potentiometer connection and remove the faulty cartridge. First put the new cartridge into its slot by making the potentiometer connection. Lock the retainer lock.

To Replace Lenses

• Inner Lens: As seen in Figure 6a, the holder lock is opened and the inner lens is removed by scrolling down. Likewise, it is replaced with a new one.
• Outer Lens: As seen in Figure 6b, the holder is opened and the cartridge is removed. With the help of two fingers, the outer lens is pushed out. The new lens holder is placed by bending the nails. By holding the solarmatic cartridge back into place, the holder lock is locked.

Cleaning

• Wipe the mask with a soft cloth. Clean the cartridge surface regularly. Do not use strong solvents for cleaning.

Troubleshooting

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Irregular dimming

| •  The headband is unbalanced and there is an inappropriate distance between the eye and the filter lens. Adjust the headband from the side to reduce the distance to the filter.
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Solarmatic filter does not

darken or light Shivers

| •  The front cover lens is dirty or damaged. Replace the front cover lens.
•  The sensors are dirty. Clean sensor surfaces.
•  Welding current is too low. Set the sensitivity setting to “Highest” direction.
Slow response| •  Blackening speed is too low. Do not use at temperatures below -10 ° C.
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Restricted view

| •  The lens on the front cover and / or inside is dirty. Replace lenses.
•  Ambient light is insufficient.
•  The blackout number is incorrectly selected. Set the dimming number again.
Welding mask slips| •  The headband is not properly adjusted. Set it again.

ANNEX

Spare Parts List

T: (236) 226 27 00
F: (236) 226 27 28
Made in P.R.C.
20.06.2022
UM_MKM620MA_012022_062022_002_32
(+90) 444 93 53 magmaweld.com info@magmaweld.com

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