1. Introduction
This manual provides essential information for the assembly, operation, and maintenance of your tectake 402997 Denis Height-Adjustable Desk. Please read these instructions carefully before use to ensure proper function and longevity of your product.
Product Overview
The tectake Denis Height-Adjustable Desk frame allows you to customize your workspace to your ergonomic needs. Featuring powerful yet quiet electric motors, it offers continuous height adjustment and variable width to accommodate various tabletop sizes. Its robust, powder-coated steel construction ensures high stability and maximum legroom due to the absence of crossbars. The desk also includes convenient memory and alarm functions, along with adjustable collision protection for enhanced safety.

Figure 1.1: The tectake 402997 Denis Height-Adjustable Desk frame, showcasing its robust black steel construction and integrated control panel.
Key Features
- Electric and continuous height adjustment.
- Variable frame width to fit different tabletops.
- Constructed from high-quality robust steel for durability.
- Equipped with memory and alarm functions for personalized settings.
- Adjustable collision protection for safety.
- Floor-protecting plastic feet.
- Powerful and quiet motors (<50 dB).
- Maximum legroom due to crossbar-free design.
2. Setup and Assembly
The tectake Denis Height-Adjustable Desk frame is designed for easy assembly. A detailed assembly guide is included with your delivery. Please follow the step-by-step instructions provided in that guide for proper and safe setup.
Pre-Assembly Checklist
- Unpack all components and verify against the parts list in the assembly guide.
- Ensure you have the necessary tools as specified in the assembly guide.
- Choose a clear, flat, and spacious area for assembly.
Key Assembly Points
- Frame Width Adjustment: The frame's width can be adjusted to fit tabletops ranging from approximately 120 x 60 cm to 200 x 80 cm. Adjust the frame to your desired width before securing the tabletop.
- Leveling Feet: The desk features adjustable plastic feet to protect your floor and ensure the desk is level on uneven surfaces. Adjust these feet after the desk is fully assembled and in its final position.

Figure 2.1: Technical drawing illustrating the dimensions and adjustable range of the desk frame.

Figure 2.2: Detail of the adjustable, floor-protecting plastic feet.
3. Operating Instructions
Your tectake height-adjustable desk is equipped with an intuitive control panel for easy operation.
Control Panel Functions

Figure 3.1: The desk's control panel, featuring height adjustment buttons, memory presets (1, 2, 3), and an alarm function (A).
- Height Adjustment: Use the ▲ (up) and ▼ (down) buttons to continuously adjust the desk height. The current height is displayed on the digital screen.
- Memory Presets (1, 2, 3): To save a preferred height, adjust the desk to the desired position, then press the 'M' button followed by the desired number (1, 2, or 3). To recall a saved height, simply press the corresponding number button.
- Alarm Function (A): The alarm function can be set to remind you to change your posture (e.g., from sitting to standing). Refer to the detailed assembly guide for specific instructions on setting and customizing the alarm.
- Collision Protection: The desk is equipped with an adjustable collision protection system. If the desk encounters an obstacle during movement, it will stop and slightly reverse to prevent damage. The sensitivity of this feature can typically be adjusted via the control panel or by following instructions in the assembly guide.

Figure 3.2: Visual representation of the desk's height adjustment capability.

Figure 3.3: Visual representation of the desk's adjustable width feature.
4. Maintenance
Regular maintenance ensures the longevity and optimal performance of your tectake height-adjustable desk.
Cleaning
- Wipe the desk frame with a soft, damp cloth.
- Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the powder-coated finish.
- Ensure no liquids enter the motor or control panel components.
General Care
- Periodically check all screws and bolts to ensure they are tight. Retighten if necessary.
- Do not overload the desk beyond its maximum weight capacity (125 kg).
- Ensure the power cable is not pinched or damaged.
- Keep the area around the desk clear to allow for smooth height adjustments.
5. Troubleshooting
If you encounter issues with your desk, please refer to the following common troubleshooting steps. For more complex problems, consult the detailed assembly guide or contact customer support.
Common Issues and Solutions
| Problem | Possible Cause | Solution |
|---|---|---|
| Desk does not move. | Power cable disconnected; overload; motor error. | Check power connection. Reduce load. Refer to assembly guide for error codes/reset procedures. |
| Desk moves unevenly or makes unusual noises. | Uneven load; loose connections; obstruction. | Distribute weight evenly. Check all screws. Ensure no obstructions. |
| Memory function not working. | Incorrect saving procedure. | Ensure you press 'M' then the number button to save. Refer to 'Operating Instructions' section. |
If the problem persists after attempting these solutions, please consult the comprehensive troubleshooting section in your assembly guide or contact TecTake customer support.
6. Specifications
Detailed technical specifications for the tectake 402997 Denis Height-Adjustable Desk frame:
| Feature | Detail |
|---|---|
| Model Number | 402997-SE |
| Max. Overall Dimensions (WxDxH) | approx. 190 x 68 x 123 cm |
| Min. Overall Dimensions (WxDxH) | approx. 110 x 68 x 58 cm |
| Suitable for Table Tops (WxD) | approx. 120 x 60 to 200 x 80 cm |
| Main Column (WxD) | approx. 7 x 7 cm |
| Retractable Columns | 2 |
| Support Plate (WxD) | approx. 3.2 x 58 cm |
| Foot (WxD) | approx. 9 x 68 cm |
| Electric Motors | 2 (<50 dB) |
| Lifting Speed | 38 mm/s |
| Power (per motor) | 40 W |
| Input Voltage | 100 – 240 V |
| Cable Length | approx. 300 cm |
| Maximum Load | 125 kg |
| Weight | approx. 31 kg |
| Material | Powder-coated steel |
| Color | Black |
7. Warranty and Support
For information regarding product warranty, please refer to the warranty card included with your purchase or visit the official TecTake website. Keep your proof of purchase for any warranty claims.
Customer Support
If you have any questions, require technical assistance, or need to report a problem with your tectake desk, please contact TecTake customer support through their official channels. Contact information can typically be found on the TecTake website or in the product packaging.
You can visit the TecTake brand store for more information: TecTake Brand Store





