UNiMiG U21032 Welding Helmet Instruction Manual

: June 15, 2024
: UNiMiG

U21032 Welding Helmet

Specifications

Filter Dimensions : Unknown
View Size : 98x48mm
Arc Sensors: 4
Classification: Unknown
Light State : Unknown
Dark State : Unknown
UV/IR Protection: Unknown
Time from Light to Dark: Unknown
Time from Dark to Light: Unknown
Sensitivity: Unknown
Delay: Unknown
Power Supply: Unknown
Warranty: Unknown
Operating Temperature: Unknown
Storage Temperature: Unknown
Shade Control: Unknown
Grind Mode: Unknown
Minimum TIG Amperage: Unknown

Features

98x48mm View Size : Get clear visibility in every situation. The 98x48mm viewing area lets you see every weld with complete clarity.
External Grind Button: Seamlessly switch to grind mode with the click of a button. When the helmet is in grind mode a small LED will illuminate, so you don’t need to take the helmet off to check.
9-13 Shade Control: Keep your eyes protected no matter the weld type. With a 9 to 13 shade range, you’ll be covered while MIG, TIG or STICK welding, even when running as high as 500A.
4 Arc Sensors: Detect every arc instantly. The four optimally positioned arc sensors trigger the lens, darkening it and keeping your eyes shielded from the start, even when you’re out of position.
Backup Battery: A CR2450 backup battery improves the performance and reliability of the auto-darkening filter.
4 Point Harness: Get the perfect fit and stay comfortable for hours. Adjust all 4 points of contact to suit you, and have the weight spread more evenly, minimizing neck strain.
E liteVision Lens Technology: See your weld clearly in true color. EliteVision technology allows more colors from the spectrum to pass through the view, giving you better optical clarity and reducing eye fatigue.

Parts Breakdown

Helmet Shell
Adjustment Knob
Outer Lens Cover (U21037)
ADF Frame
Auto-Darkening Filter (ADF)
Inner Lens Cover (U21037)
4 Point Harness Sweatband (U21036)
4 Point Harness (U21035)
4 Point Harness Back Pad (U21036)

Safety

Please read and understand all instructions before using.

Be sure that the dark shade of the lens in the welding helmet is on the correct shade number for your application.
The helmet and lenses are not suitable for “overhead” welding application, laser welding, or laser cutting applications.
Welding helmets are designed to protect the eyes and face from sparks, spatter, and harmful radiation under normal welding conditions.
This helmet will not protect against explosive devices or corrosive liquids. Machine guards or eye splash protection must be used when these hazards are present.
Impact-resistant, primary eye protection, spectacles or goggles that meet current ANSI specifications, must be worn at all times when using this welding helmet.
Avoid work positions that could expose unprotected areas of the body to sparks, spatter, direct and/or reflected radiation. Use appropriate protection if exposure cannot be avoided.
Before each use, check that the protection plates are clean and that no dirt is covering the sensors on the front of the lens.
Inspect all operating parts before each use for signs of wear or damage. Any scratched, cracked, or pitted parts should be replaced immediately.
Do not make any modifications to either the welding lens or helmet, other than those specified in this manual. Do not use any replacement parts other than those specified in this manual. Unauthorised modifications and replacement parts will void the warranty and expose the user to the risk of personal injury.
If this lens does not darken when striking arc, stop welding immediately and check the helmet is in Weld Mode and not Grind Mode. If the issue persists, contact your local UNIMIG Service Department.
Do not immerse this lens in water.
Do not use any solvents on any lens or helmet components.
The recommended operating temperature range for this welding lens is -5°C to 55°C. Do not use this device beyond these temperature limits.
Failure to follow these warnings and/or failure to follow all of the operating instructions could result in severe personal injury.

WARNING: Contains button battery, hazardous if swallowed. Keep out of reach from children (whether the battery is new or used). Battery can cause severe or fatal injuries in 2 hours or less if it is swallowed or placed inside any part of the body. Medical attention should be sought immediately if it is suspected the battery has been swallowed or placed inside any part of the body.

Features

98x48mm View Size
Get clear visibility in every situation. The 98x48mm viewing area lets you see every weld with complete clarity.

External Grind Button
Seamlessly switch to grind mode with the click of a button. When the helmet is in grind mode a small LED will illuminate, so you don’t need to take the helmet off to check.

9-13 Shade Control
Keep your eyes protected no matter the weld type. With a 9 to 13 shade range, you’ll be covered while MIG, TIG or STICK welding, even when running as high as 500A.

4 Arc Sensors
Detect every arc instantly. The four optimally positioned arc sensors trigger the lens, darkening it and keeping your eyes shielded from the start, even when you’re out of position.

Backup Battery
A CR2450 backup battery improves the performance and reliability of the auto- darkening filter.

4 Point Harness
Get the perfect fit and stay comfortable for hours. Adjust all 4 points of contact to suit you, and have the weight spread more evenly, minimizing neck strain.

EliteVision Lens Technology
See your weld clearly in true color. EliteVision technology allows more colors from the spectrum to pass through the view, giving you better optical clarity and reducing eye fatigue.

Specifications

Technical Data

UNiMiG-U21032-Welding-Helmet-fig-14

Replaceable Parts

UNiMiG-U21032-Welding-Helmet-fig-15

Parts Breakdown

Helmet Shell
Adjustment Knob
Outer Lens Cover (U21037)
ADF Frame
Auto-Darkening Filter (ADF)
Inner Lens Cover (U21037)
4 Point Harness Sweatband (U21036)
4 Point Harness (U21035)
4 Point Harness Back Pad (U21036)

Operating Instructions

Low Battery Indicator
Grind Mode Indicator
Sensitivity Dial (Low to High)
Delay Dial (Fast to Slow)
Shade Selector Knob
Grind Mode Button

Manual Shade Control
Choose your preferred shade by twisting the Shade Selector Knob (5) to the matching shade number (9-13).

Note: Choose an optimum shade number for the required welding process or application. If this lens does not darken when striking an arc, stop welding immediately and check the helmet is in Weld Mode and not Grind Mode. If the issue persists, contact your local UNIMIG Service Department.

Sensitivity Control

The responsiveness to different light levels in various welding processes can be adjusted in the range from low to high.
Set the Sensitivity Dial (3) to your preferred level. Turn the dial counter- clockwise arrow-rotate-left to decrease sensitivity, and rotate it clockwise arrow-rotate-right to increase sensitivity.

Low Sensitivity

Suitable for high amperage welding and welding in bright light conditions (lamp light or sunlight).

High Sensitivity

Suitable for low amperage welding and use in poor light conditions.
Suitable for use with steady arc processes such as TIG welding.
Under normal use, a higher sensitivity setting is recommended.

Delay Control
The length of time delay for the ADF to return to the light state after welding can be adjusted in the range from fast to slow (0.1-0.9s). The time delay is for the protection of the welder’s eyes from strong residual rays after welding.
Set the Delay Dial (4) to your preferred level. Turn the dial counter- clockwise arrow-rotate-left to decrease delay time, and rotate it clockwise arrow-rotate-right to increase delay time.

Low Delay

The time the ADF takes to lighten after welding becomes shorter. The shortest time is about 0.1s depending on the welding point temperature and shade setting. This setting is ideal for tack welding or production welding with short welds.

H igh Delay

The time the ADF takes to lighten after welding becomes longer. The longest time is about 0.8s depending on the welding point temperature and shade setting. This setting is ideal for welding at high amperage where there is an afterglow from the weld.

Grind Mode
Press the Grind Mode Button (6) to initiate grind mode. Upon activation, the Grind Mode Indicator (2) light will begin to blink. To deactivate grind mode and revert back to weld mode, simply press the Grind Mode Button (6) again.

Note: Do not weld in the grind mode, the ADF will not darken.

Low Battery Indicator
When the backup battery is low, the Low Battery Indicator (1) will begin to blink. Replace the battery when it is low, otherwise the ADF switching time will become slower, and shade accuracy will be compromised.

Removing The ADF From The Helmet Shell

Switch both ADF frame locks to the up position to unlock it from the helmet shell.
Lift the bottom of the ADF up then slide the unit down to remove it from the helmet shell.

UNiMiG-U21032-Welding-Helmet-fig-4

Power Supply & Replacing The Battery

The power of the auto-darkening helmet is provided by solar cells and a CR2450 lithium battery. To change the battery, remove the ADF from the ADF frame. The battery compartment is on the top of the ADF, open the compartment to replace the battery.

Changing The Inner Lens Cover
Pry the inner lens cover up from the finger groove at the top of the ADF. The inner lens cover can then slide up and out of the ADF. Replace with new inner lens cover.r.

Changing The Outer Lens Cover
With the ADF frame removed, simply lift out the existing outer lens cover. Replace with new outer lens cover.

Installing A Magnification Lens
Slide the magnificaion lens down through the magnification lens holder.

Additional Instructions

Be sure that the helmet is used in the correct condition and according to the safety requirements.
There is a liquid crystal valve in the filter, although it has inner and outer protection covers, it is important to avoid heavy knocks to the helmet.
The outer protective shell of the helmet should be periodically inspected and cleaned. In the case of a break, crack, pitting or other damage, the helmet shell must be replaced.
To operate more efficiently and safely, please select the correct dark shade number.
The arc light must be visible completely by all arc sensors. If not, the ADF may struggle to detect an arc and may not activate the selected shade.
Please use the automatic filter at a temperature between -5°C-55°C.
Do not disassemble the filter. If any problems arise, please contact your local UNIMIG service department.

Harness Operating Instructions

Neck Band Adjustment
To tighten the neckband, turn the neckband adjustment dial rotate-right clockwise. To loosen the neckband, turn the neckband adjustment dial rotate- left anti clockwise.

Head Strap Adjustment
To adjust the head straps, first, push the head strap lockout of the current position. Then adjust the strap to the desired length, and push the head strap lock into the corresponding position.

UNiMiG-U21032-Welding-Helmet-fig-11

Distance Adjustment

To adjust the distance between your face and the lens, push the distance adjuster buttons. The helmet shell can now move towards or away from your face. Release the buttons to lock the shell into position. Ensure that both sides are equally positioned for proper vision.

Angle Adjustment

There are 3 positions available to set the angle of the helmet. To adjust, lift, and reposition the locking tab into the desired angle position.

Troubleshooting

The ADF does not darken when welding
- Stop welding or cutting immediately.
- Make sure the sensors are facing the arc and there are no obstructions.
- Check the mode is on WELD, not GRIND.
- Review sensitivity recommendations and adjust sensitivity if possible.
- Replace the battery if necessary.
The ADF stays dark after welding or there is no arc present
- Adjust the sensitivity to a lower level.
- If the worksite is too bright, it is recommended to reduce the surrounding light level.
The ADF switches during welding
- Increase the sensitivity if possible.
- Make sure the sensors are facing the arc and there are no obstructions.
- Increasing Delay 0.1−0.3 seconds may also reduce switching.

Warranty

UNIMIG auto-darkening welding helmets are covered for warranty for up to three years from the date of purchase from authorised UNIMIG dealers. The duration of use depends on various factors such as use, cleaning storage and maintenance. Frequent inspections are recommended.