Introduction
Thank you for choosing the ProtoArc Ergonomic Office Chair EC100. This manual provides detailed instructions for the assembly, operation, maintenance, and troubleshooting of your new office chair. Please read this manual thoroughly before assembly and use to ensure proper function and longevity of the product. Retain this manual for future reference.
Image: The ProtoArc Ergonomic Office Chair EC100, showcasing its sleek black design and ergonomic features.
Safety Information
To ensure safe operation and prevent damage, please observe the following safety guidelines:
- Maximum Weight Capacity: Do not exceed the maximum weight capacity of 260 lbs (118 kg). Overloading the chair can lead to instability and potential injury.
- Proper Assembly: Ensure the chair is properly assembled according to the instructions provided in this manual. Incorrect assembly can compromise the chair's stability and safety.
- Stable Surface: Always use the chair on a flat, stable, and level surface to prevent tipping.
- Regular Inspection: Periodically check all bolts, screws, and connections to ensure they are tight. Retighten as necessary.
- Avoid Standing on Chair: Do not stand on the chair or use it as a step stool.
- Children and Pets: Keep children and pets away from the chair during assembly. Do not allow children to play on or around the chair unsupervised.
- Moving the Chair: When moving the chair, lift it rather than dragging it to prevent damage to the base or floor.
Package Contents
Before beginning assembly, please verify that all components are present and undamaged. If any parts are missing or damaged, contact customer support immediately.
- Chair Backrest
- Seat Cushion Assembly
- Armrests (2)
- Chair Base (5-star)
- Casters (5)
- Gas Lift Cylinder
- Mechanism Plate
- Headrest
- Hardware Kit (screws, washers, Allen wrench)
- User Manual (this document)
Assembly Instructions
Assembly typically takes approximately 20 minutes. All necessary tools and hardware are included in the package. Follow these steps carefully:
- Attach Casters to Base: Insert each of the five casters into the holes at the end of each leg of the chair base. Push firmly until they click into place.
Image: The chair's five-star base with casters attached, ready for the gas lift cylinder.
- Insert Gas Lift: Place the gas lift cylinder into the center hole of the assembled chair base. Ensure it is seated securely.
- Attach Mechanism Plate to Seat: Align the mechanism plate with the pre-drilled holes on the underside of the seat cushion. Secure it using the provided screws and Allen wrench. Ensure the front of the mechanism faces the front of the seat.
- Attach Armrests to Seat: Secure the armrests to the sides of the seat cushion using the designated screws. Ensure they are oriented correctly (left and right).
- Attach Backrest to Seat: Connect the backrest to the seat cushion assembly. Secure it with the provided screws.
- Attach Headrest: Slide the headrest into the top slot of the backrest. It should click into place or be secured with a screw, depending on the design.
- Connect Seat to Gas Lift: Carefully place the assembled seat and backrest onto the gas lift cylinder, ensuring the center hole of the mechanism plate aligns with the top of the gas lift. Press down firmly to secure.
Image: An illustration showing the fully assembled ProtoArc EC100 chair, highlighting its overall structure and key components.
Operating Instructions
The ProtoArc EC100 chair offers multiple adjustment features to customize your seating experience for optimal comfort and ergonomic support.
1. Seat Height Adjustment
To adjust the seat height, locate the lever on the right side beneath the seat. Pull the lever upwards while seated to lower the seat, or pull the lever upwards while standing to raise the seat. Release the lever at your desired height. The SGS-certified gas cylinder allows for a 3.9-inch adjustment range, accommodating users from approximately 5.3ft to 6.5ft.
2. Recline Function and Locking
The chair features a two-mode locking tilt mechanism, allowing recline angles from 90 to 130 degrees. To recline, pull the recline lever (typically on the left side) outwards and lean back. To lock the recline position, push the lever inwards at your desired angle. The chair supports two primary locked positions: fully upright (90°) and fully reclined (130°).
3. Adjustable Headrest
The headrest can be adjusted both vertically and rotationally to provide optimal neck and head support.
- Vertical Adjustment: Gently pull the headrest up or push it down to adjust its height by up to 2.75 inches.
- Rotational Adjustment: Tilt the headrest forward or backward to find the most comfortable angle. It rotates up to 60 degrees.
Image: A close-up view illustrating the 2.7-inch vertical and 60-degree rotational adjustment capabilities of the headrest.
4. Armrest Adjustment
The 2D armrests can be adjusted vertically by 3.5 inches to suit various working positions and desk heights. To adjust, locate the button or lever on the side of each armrest, press it, and slide the armrest up or down. Release the button/lever to lock it in place.
5. Lumbar Support
The chair features a broad curved lumbar support designed to conform to the natural curve of your spine, promoting healthy posture. This support is integrated into the backrest design.
Image: A visual representation of the broad curved lumbar support, highlighting how it cradles the lower back for ergonomic comfort.
Maintenance
Regular maintenance will help prolong the life and appearance of your ProtoArc EC100 chair.
- Cleaning Mesh and Fabric: For general cleaning, use a soft cloth dampened with mild soap and water. Gently wipe the mesh backrest and fabric seat cushion. Avoid abrasive cleaners or harsh chemicals, as they can damage the material. Allow to air dry completely.
- Cleaning Plastic and Metal Parts: Wipe plastic and metal components with a soft, damp cloth. Dry thoroughly.
- Caster Maintenance: Periodically check the casters for accumulated hair or debris. Clean them as needed to ensure smooth rolling.
- Hardware Check: Every 3-6 months, inspect all screws and bolts to ensure they are tight. Retighten any loose fasteners to maintain stability and safety.
- Avoid Direct Sunlight: Prolonged exposure to direct sunlight can cause fading and degradation of materials. Position the chair away from direct sunlight when possible.
Troubleshooting
If you encounter any issues with your ProtoArc EC100 chair, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair wobbles or feels unstable. | Loose screws or uneven assembly. | Check all assembly screws and bolts, and tighten them securely. Ensure the chair is on a flat surface. |
| Chair does not adjust height. | Gas lift cylinder malfunction or lever not engaged. | Ensure the height adjustment lever is fully engaged. If the issue persists, the gas lift cylinder may need replacement. Contact customer support. |
| Casters do not roll smoothly. | Debris (hair, lint) caught in casters. | Turn the chair over and carefully remove any debris from the caster wheels. |
| Backrest does not recline or lock. | Recline mechanism jammed or lever not engaged. | Ensure the recline lever is fully engaged and disengaged as needed. Check for any obstructions under the seat mechanism. |
If these solutions do not resolve the issue, please contact ProtoArc customer support for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Brand | ProtoArc |
| Model Name | EC100 |
| Color | Black |
| Product Dimensions (D x W x H) | 20"D x 20"W x 44"H |
| Maximum Weight Recommendation | 260 Pounds (118 kg) |
| Seat Height Adjustment | 3.9 Inches (SGS-certified gas cylinder) |
| Headrest Adjustment | 2.75 inches vertical, 60° rotational |
| Armrest Adjustment | 3.5 inches vertical (2D) |
| Reclining Positions | 2 positions (90° and 130° lockable tilt) |
| Seat Cushion Material | High-density sponge with spring cushion design |
| Backrest Material | Premium elastic mesh |
| Item Weight | 37.4 pounds (17 kg) |
| Durability Tests | Endured 100,000+ extreme tests (e.g., 300,000 full chair tilt, 120,000 backrest durability) |
Image: A diagram illustrating the key dimensions of the ProtoArc EC100 chair, including height, width, and depth.
Image: An infographic detailing the extensive durability tests the ProtoArc EC100 chair has undergone, including tilt, backrest, armrest, caster, gas lift, and seat durability tests.
Warranty and Support
ProtoArc stands behind the quality of its products. For specific warranty details, please refer to the warranty card included with your purchase or visit the official ProtoArc website.
Customer Support: If you have any questions, require assistance with assembly, or need to report a missing/damaged part, please contact ProtoArc customer support. Have your model number (EC100) and purchase information ready when contacting support.
For the most up-to-date contact information, please visit the ProtoArc Store on Amazon.
