1. Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your ANDELI NMB-600LB Auto Darkening Welding Helmet. Please read this manual thoroughly before use and retain it for future reference.
1.1 Safety Warnings
- Always wear appropriate personal protective equipment (PPE) in addition to this helmet.
- Do not use this helmet if any part is damaged or appears to be malfunctioning.
- This helmet is designed for arc welding and grinding applications. It is not suitable for laser welding or oxy-acetylene welding/cutting.
- Protect the auto-darkening filter from liquid contact and harsh impacts.
- Ensure the helmet is properly adjusted for a secure and comfortable fit before commencing work.
2. Product Overview
The ANDELI NMB-600LB is an auto-darkening welding helmet designed to provide comprehensive eye and face protection during various welding and grinding operations. It features a wide 180° panoramic viewing area with True Color technology for enhanced clarity.
Figure 2.1: Front-side view of the ANDELI NMB-600LB Auto Darkening Welding Helmet, showcasing its sleek black design with red accents and the large viewing area.
2.1 Key Features
- 180° Panoramic Viewing Area: Expansive 4.53" x 3.23" main viewing area with additional side views for increased peripheral awareness.
- True Color Technology: Provides a clearer, more natural view of the weld puddle and surrounding environment.
- Variable Shade Control: Adjustable shade settings from DIN 4/5-9/9-13.
- Fast Switching Speed: Rapid auto-darkening response time.
- Grind Mode: Dedicated mode for grinding operations, preventing the filter from darkening.
- Adjustable Sensitivity and Delay: Customizable settings for various welding conditions.
3. Setup
3.1 Headgear Assembly and Adjustment
- Attach Headgear: Insert the headgear into the helmet shell's mounting slots. Ensure it clicks securely into place.
- Adjust Top Strap: Adjust the top strap to position the helmet correctly on your head, ensuring the viewing area is at eye level.
- Adjust Rear Band: Rotate the knob on the back of the headgear to tighten or loosen the band for a snug and comfortable fit.
- Adjust Tilt and Distance: Use the side knobs to adjust the helmet's tilt and the distance between your face and the auto-darkening filter. This ensures optimal viewing and comfort.
Figure 3.1: Side view of the helmet, highlighting the headgear adjustment knobs for a customized fit.
3.2 Battery Installation/Check
The helmet is typically powered by solar cells and a replaceable lithium battery. Ensure the battery is correctly installed and has sufficient charge. Refer to the battery compartment for specific battery type (e.g., CR2032).
- Locate the battery compartment, usually on the inside of the auto-darkening filter cartridge.
- Open the compartment and insert the battery with the correct polarity (+/-).
- Close the compartment securely.
- Test the auto-darkening function before welding by exposing the sensors to a bright light source (not an arc).
4. Operating Instructions
4.1 Selecting Operating Mode
The NMB-600LB helmet typically offers two main modes: Weld and Grind.
- Weld Mode: For all arc welding processes (TIG, MIG, Stick/MMA). In this mode, the filter will automatically darken when an arc is detected.
- Grind Mode: For grinding operations. In this mode, the auto-darkening filter remains in its light state (shade DIN 4) to provide clear vision while protecting against sparks and debris. The auto-darkening function is deactivated.
Use the external switch or internal button (depending on helmet design) to select the desired mode.
Figure 4.1: Front view of the helmet, showing the main viewing area and potential locations for external controls.
4.2 Shade Adjustment
The helmet offers variable shade control. Adjust the shade level according to the welding process and amperage being used. Refer to standard welding shade charts for guidance.
- Shade Range: DIN 4/5-9/9-13.
- Use the external shade adjustment knob to select the appropriate shade.
4.3 Sensitivity Control
Sensitivity controls how readily the filter reacts to welding arc light. Adjust it based on ambient light conditions and the specific welding process.
- High Sensitivity: For low amperage TIG welding or when the arc is partially obstructed.
- Low Sensitivity: For high amperage welding or when working near other welders to prevent false triggering.
4.4 Delay Control
Delay control determines how long the filter remains dark after the welding arc ceases. This prevents eye fatigue from afterglow and protects against bright flashes from adjacent welding operations.
- Short Delay: For tack welding or short welds.
- Long Delay: For high amperage welding or when the weld puddle remains bright for an extended period.
5. Maintenance
5.1 Cleaning
- Clean the helmet shell with a mild soap and water solution. Avoid harsh solvents.
- Clean the outer and inner protective lenses with a soft, clean cloth and a non-abrasive lens cleaner.
- Do not immerse the auto-darkening filter in water or cleaning solutions.
5.2 Lens Replacement
- Replace scratched, pitted, or damaged outer and inner protective lenses immediately to maintain optical clarity and protection.
- Follow the manufacturer's instructions for replacing the auto-darkening filter cartridge if it becomes damaged or malfunctions.
5.3 Storage
Store the helmet in a dry, clean environment, away from direct sunlight and extreme temperatures. Protect the auto-darkening filter from impacts and scratches.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Filter does not darken. | Low battery, sensors obstructed, incorrect mode (Grind mode selected), sensitivity too low. | Check/replace battery, clean sensors, switch to Weld mode, increase sensitivity. |
| Filter flickers or darkens intermittently. | Low battery, sensors partially obstructed, sensitivity too high, interference from other light sources. | Check/replace battery, clean sensors, adjust sensitivity, reposition helmet or work area. |
| Poor visibility. | Scratched/dirty protective lenses, incorrect shade setting. | Clean or replace lenses, adjust shade to appropriate level. |
| Helmet feels uncomfortable or unstable. | Headgear not properly adjusted. | Re-adjust headgear straps and knobs for a secure and balanced fit. |
7. Specifications
- Model: NMB-600LB
- Viewing Area: Approximately 4.53" x 3.23" (main) + 180° Panoramic Side Views
- Optical Clarity: True Color Technology
- Light State: DIN 4
- Dark State: Variable Shade 4/5-9/9-13
- Switching Time: Typically < 1/25,000s
- Delay Control: Adjustable (Short-Long)
- Sensitivity Control: Adjustable (Low-High)
- Power Supply: Solar Cell with Replaceable Lithium Battery (e.g., CR2032)
- Operating Temperature: Typically -5°C to +55°C
- Applications: TIG, MIG, Stick/MMA, CUT, GRIND
8. Warranty and Support
For warranty information, technical support, or replacement parts, please contact ANDELI customer service or refer to the official ANDELI website. Keep your purchase receipt as proof of purchase.
Contact Information: Refer to the product packaging or the official ANDELI website for the most current contact details.
