1. Introduction
This manual provides essential instructions for the safe and effective use of your HITBOX HT-111 Auto Darkening Welding Helmet. This helmet is designed to offer superior eye and face protection during various welding and grinding operations. It features an auto-darkening lens, true color technology, and a comfortable, lightweight design.
Figure 1: Front view of the HITBOX HT-111 Auto Darkening Welding Helmet.
2. Safety Information
Always prioritize safety when performing welding or grinding tasks. This helmet provides protection against harmful ultraviolet (UV) and infrared (IR) radiation, sparks, and spatter. However, it is crucial to follow all general welding safety guidelines and wear appropriate personal protective equipment (PPE).
- Ensure the helmet is properly fitted and adjusted before each use.
- Inspect the helmet and lens for any damage before use. Replace damaged parts immediately.
- Do not use the helmet if the auto-darkening function is not working correctly.
- Avoid direct exposure to welding arc without proper eye protection.
- The helmet is not suitable for laser welding or overhead applications where falling objects may be a hazard.
3. Product Overview and Components
Familiarize yourself with the various parts of your welding helmet for optimal performance and safety.
Figure 2: Lens specifications and controls.
- TEST Button: Used to check the auto-darkening function.
- Low Battery Light: Indicates when the battery needs replacement.
- Sensitivity Knob: Adjusts the sensitivity of the arc sensors.
- Delay Time Knob: Controls the time the lens stays dark after the arc stops.
- Lithium Battery: Provides power to the auto-darkening filter.
- Solar Cell: Extends battery life by charging from welding light.
- Arc Sensors: Detect the welding arc to trigger darkening.
- Shade Control Knob: Adjusts the dark shade level (DIN 4/9-13).
Included Accessories:
Figure 3: Included accessories.
- Welding Helmet x 1
- Outer Protection Board x 1
- CR2450 Battery x 3 (Note: Product specifications state 3 batteries, image shows 2 replaceable batteries plus one pre-installed)
- User Manual x 1
4. Setup
4.1 Headband Adjustment
Proper adjustment of the headband is crucial for comfort and stability during use.
Figure 4: Headband adjustment points.
- Adjust Top Strap: Loosen or tighten the top strap to adjust the helmet's height on your head.
- Width Knob: Rotate the knob at the back of the headband to adjust the circumference for a snug fit.
- Angle Knob: Adjust the angle of the helmet relative to your face for optimal viewing and comfort.
- Comfort Cushion: Ensure the comfort cushion rests properly against your forehead to reduce pressure points.
4.2 Battery Installation/Check
The helmet is powered by a CR2450 lithium battery, supplemented by solar cells. Ensure the battery is correctly installed and functional.
- Locate the battery compartment, typically on the auto-darkening filter cartridge.
- Insert the CR2450 battery with the correct polarity.
- Press the TEST button (1 in Figure 2) to verify the auto-darkening function. The lens should momentarily darken.
- If the low battery light (2 in Figure 2) illuminates, replace the battery.
5. Operating Instructions
The HT-111 helmet offers various adjustments to suit different welding and grinding tasks.
Figure 5: Clear view before welding and auto-darkening during welding.
5.1 Power On/Off
The auto-darkening filter is solar-powered and automatically activates when exposed to light. There is no manual on/off switch for the auto-darkening function itself.
5.2 Shade Control
The external shade control knob (8 in Figure 2) allows adjustment from DIN 4 (light state) to DIN 9-13 (dark state). Rotate the knob to select the appropriate shade level for your welding process.
5.3 Sensitivity Adjustment
The sensitivity knob (3 in Figure 2) controls how easily the arc sensors detect the welding arc. Adjust it to prevent false darkening from ambient light or to ensure darkening in low-amp TIG welding.
5.4 Delay Time Adjustment
The delay time knob (4 in Figure 2) sets how long the lens remains dark after the welding arc ceases. A shorter delay is suitable for tack welding, while a longer delay is recommended for high-amperage welding to protect eyes from afterglow.
5.5 Welding and Grind Modes
Figure 6: Multiple applications supported by the helmet.
The HT-111 helmet supports various applications:
- Weld Mode: For MIG, TIG, ARC (Stick), and other welding processes. The lens automatically darkens to the selected shade (DIN 9-13) upon arc ignition.
- Grind Mode: For grinding operations. The lens remains in its light state (DIN 4) to provide clear vision while protecting against sparks and debris. Ensure the helmet is set to Grind Mode before starting grinding to prevent accidental darkening.
5.6 Shade Number Selection Guide
Refer to the table below for recommended shade numbers based on welding process and current (Amperes).
Figure 7: Shade number selection table.
| Process | Current (A) | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 10 | 15 | 30 | 40 | 70 | 100 | 125 | 150 | 175 | 200 | 225 | 250 | 300 | 350 | 400 | 500 | 600 | |
| MMA | 9 | 10 | 11 | 12 | 13 | 14 | ||||||||||||
| MAG | 10 | 11 | 12 | 13 | 14 | |||||||||||||
| TIG | 9 | 10 | 11 | 12 | 13 | 14 | ||||||||||||
| MIG | 10 | 11 | 12 | 13 | 14 | |||||||||||||
| PAC | 11 | 12 | 13 | 14 | ||||||||||||||
| PAW | 9 | 10 | 11 | 12 | 13 | 14 | ||||||||||||
6. Maintenance
Regular maintenance ensures the longevity and proper functioning of your welding helmet.
6.1 Cleaning
- Clean the helmet shell with a mild soap and water solution. Avoid harsh solvents.
- Wipe the auto-darkening filter and protection lenses with a soft, clean cloth. Do not use abrasive materials or cleaners that could scratch the lens.
- Keep the arc sensors clean and free from obstructions.
6.2 Replacing Outer Protection Board
The outer protection board protects the auto-darkening filter from spatter and scratches. Replace it when it becomes scratched or damaged to maintain clear vision.
- Carefully remove the old protection board from its frame.
- Insert a new outer protection board (one is included as an accessory) into the frame, ensuring it sits securely.
6.3 Replacing CR2450 Battery
When the low battery indicator illuminates, replace the CR2450 battery.
- Locate the battery compartment on the auto-darkening filter.
- Open the compartment and remove the old battery.
- Insert a new CR2450 battery, ensuring correct polarity (+ side up).
- Close the compartment and press the TEST button to confirm functionality.
7. Troubleshooting
If you encounter issues with your welding helmet, refer to the following common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Lens does not darken when arc is struck. |
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| Lens darkens intermittently or flashes. |
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| Poor visibility through the lens. |
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| Helmet feels uncomfortable or unstable. | Headband not properly adjusted. | Adjust the top strap, width knob, and angle knob for a secure and comfortable fit. |
8. Specifications
Detailed technical specifications for the HITBOX HT-111 Auto Darkening Welding Helmet.
| Feature | Specification |
|---|---|
| Model | HT111 |
| Viewing Area | 3.66" x 1.69" |
| Arc Sensors | 2 pcs |
| UV/IR Protection | DIN 16 |
| Light State | DIN 4 |
| Dark State | DIN 9-13 |
| Switch Time | 1/30000s (0.04ms) |
| Delay Control | 0.1-1.0s |
| Power Supply | Li-battery & Solar |
| Battery Type | CR2450 (replaceable) |
| Battery Capacity | 600mAh |
| Way to Shift Dark State | Outer Stepless Shift |
| Operating Temperature | -5°C to +55°C |
| Low Battery Tip | LED Indication |
| Grind Function | Yes |
| Welding Process Compatibility | MMA, MIG/MAG, TIG |
| Item Weight | 13.8 ounces |
| Product Dimensions | 11.02 x 9.84 x 11.02 inches |
9. Warranty and Support
HITBOX is committed to providing reliable welding products and customer satisfaction. If you encounter any quality problems with your HT-111 welding helmet, please contact our customer service team. We are dedicated to arranging an immediate replacement or a full refund as per our after-sale service policy.
For support, please refer to the contact information provided with your product packaging or visit the official HITBOX website.
