1. Introduction
Thank you for choosing the HANMATEK DT50 Laser Distance Meter. This device is designed for precise and efficient distance measurements, offering various functions for professional and DIY applications. Please read this manual thoroughly before using the device to ensure safe and correct operation.
2. Safety Information
This device uses a Class 2 laser. Observe the following safety precautions:
- Do not stare directly into the laser beam.
- Do not point the laser beam at people or animals.
- Avoid operating the device in explosive environments.
- Keep the device out of reach of children.
- Do not attempt to modify or disassemble the device.
3. Package Contents
Upon opening the package, verify that all items listed below are present and in good condition:
- 1 x HANMATEK DT50 Laser Distance Meter
- 1 x User Manual (this document)
- 1 x Wrist Strap
- 1 x Carry Bag
- 2 x 1.5V AAA Alkaline Batteries
4. Device Overview
4.1. Components
The HANMATEK DT50 features a robust design with an intuitive button layout and a clear display.
4.2. Buttons and Functions
- Power / Measure Button: Short press to turn on the laser or take a measurement. Long press to turn off the device.
- Unit Button: Short press to cycle through measurement units (m, ft, in, ft+in). Long press for mute function.
- Function Button: Short press to select measurement modes (single, continuous, area, volume, Pythagorean).
- Clear / Back Button: Short press to clear the last measurement or exit a mode.
- Plus/Minus Button: Used for addition/subtraction of measurements.
- Reference Point Button: Changes the measurement reference point (front or rear of the device).
- Data Storage Button: Accesses stored measurement data.
5. Setup
5.1. Battery Installation
- Locate the battery compartment cover on the back of the device.
- Slide the cover open.
- Insert the two 1.5V AAA alkaline batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
The device requires 2 AAA batteries, which are included in the package.
6. Operating Instructions
6.1. Power On/Off
- To Power On: Short press the Power / Measure button. The laser will activate.
- To Power Off: Long press the Power / Measure button. The device will also automatically shut down after a period of inactivity to conserve battery life.
6.2. Changing Measurement Units
The DT50 supports multiple measurement units: meters (m), feet (ft), inches (in), and feet+inches (ft+in).
- Short press the Unit button to cycle through the available units. The selected unit will be displayed on the screen.
6.3. Setting Reference Point
The measurement can be taken from either the front or the rear of the device. This is crucial for accurate measurements, especially in tight spaces.
- Press the Reference Point button to switch between front and rear reference points. An icon on the display will indicate the current reference point.
6.4. Basic Distance Measurement
- Ensure the desired unit and reference point are selected.
- Point the laser at the target surface.
- Short press the Power / Measure button. The measurement will be displayed on the screen.
6.5. Measurement Modes
The DT50 offers several advanced measurement functions:
6.5.1. Continuous Measurement (Tracking)
This mode allows for dynamic measurement, displaying the distance in real-time as the device is moved.
- Press the Function button until the continuous measurement icon appears.
- Point the laser at the target. The distance will update continuously.
- Press the Power / Measure button again to stop tracking and hold the current measurement.
6.5.2. Area Measurement
To calculate the area of a rectangular space:
- Press the Function button until the area icon appears.
- Measure the first side (e.g., length) by pressing the Power / Measure button.
- Measure the second side (e.g., width) by pressing the Power / Measure button again.
- The device will automatically calculate and display the area.
6.5.3. Volume Measurement
To calculate the volume of a rectangular space:
- Press the Function button until the volume icon appears.
- Measure the length, width, and height sequentially by pressing the Power / Measure button after each measurement.
- The device will automatically calculate and display the volume.
6.5.4. Pythagorean Theorem Measurement
This mode allows for indirect measurement of heights or distances using the Pythagorean theorem (a² + b² = c²).
- Press the Function button until the Pythagorean icon appears (e.g., for two-point or three-point measurement).
- Follow the on-screen prompts to take the required measurements (e.g., hypotenuse, base).
- The device will calculate and display the unknown side.
7. Data Management
7.1. Data Storage
The DT50 can store up to 30 sets of measurement data, allowing for easy recall and review.
- After taking a measurement, the result is automatically saved.
- Press the Data Storage button to view previous measurements. Use the arrow buttons to navigate through the stored data.
7.2. Mute Function
To silence the device's beeping sounds:
- Long press the Unit button to toggle the mute function on or off. A mute icon will appear on the display when activated.
8. Maintenance
8.1. Cleaning
- Wipe the device with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Keep the laser lens clean and free from dust or debris to ensure accurate measurements.
8.2. Storage
- Store the device in its carry bag when not in use to protect it from dust and impacts.
- If storing for an extended period, remove the batteries to prevent leakage.
9. Troubleshooting
If you encounter issues with your DT50, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Low or dead batteries; incorrect battery polarity. | Replace batteries with new ones; ensure correct polarity. |
| Inaccurate measurements. | Laser lens is dirty; unstable measurement surface; incorrect reference point. | Clean the laser lens; ensure a stable measurement surface; verify the correct reference point is selected. |
| "Out of Range" error (e.g., Error 261). | Measurement is too short or too long for the device's range. | Ensure the measurement is within the 0.2ft to 165ft (0.06m to 50m) range. For very short distances (e.g., less than 2 inches), a tape measure may be required. |
| Laser not visible outdoors. | Strong ambient light. | The visibility of the red laser may be reduced in bright sunlight. This is normal for Class 2 red lasers. Consider using the device in shaded areas or at dusk/dawn for outdoor measurements. |
10. Specifications
| Feature | Specification |
|---|---|
| Measurement Range | 0.2 - 165 ft (0.06 - 50 m) |
| Measurement Accuracy | ±2.0mm + Effective Distance * 0.00005 (approx. ±1/16 inch) |
| Measurement Units | m / in / ft / ft+in |
| Laser Class | Class 2, <1mW |
| Display | 4-line Backlit LCD |
| Data Storage | Up to 30 groups |
| Automatic Shutdown | Yes (after inactivity) |
| Battery Type | 2 x 1.5V AAA Alkaline Batteries |
| Ingress Protection Rating | IP54 (Dust and splash resistant) |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Item Weight | Approx. 0.2 kg (7 ounces) |
| Color | Blue |
11. Warranty and Support
11.1. Warranty Information
The HANMATEK DT50 Laser Distance Meter comes with a 12-month warranty from the date of purchase. This warranty covers manufacturing defects and material faults under normal use. It does not cover damage caused by misuse, unauthorized modifications, accidents, or improper maintenance.
11.2. Customer Support
For technical assistance, warranty claims, or any questions regarding your HANMATEK DT50, please contact HANMATEK customer support through your purchase platform or the official HANMATEK website. Please have your purchase receipt and product model number (DT50) ready when contacting support.
