1. Introduction
This manual provides detailed instructions for the safe and effective operation of your HANMATEK DT50 Digital Laser Distance Meter. Please read this manual thoroughly before using the device to ensure proper functionality and to prevent potential hazards. Keep this manual for future reference.
Image 1.1: Overview of the HANMATEK DT50 Laser Distance Meter and its primary functions.
2. Safety Information
Observe the following safety precautions to prevent injury and damage to the device:
- Do not stare directly into the laser beam or point it at people or animals. The laser is a Class 2 laser product.
- Do not disassemble or modify the device. Repairs should only be performed by authorized service personnel.
- Keep the device out of reach of children.
- Avoid using the device in explosive environments or near flammable materials.
- Protect the device from extreme temperatures, moisture, and strong vibrations.
- Clean the device with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
3. Product Overview
3.1 Components
Image 3.1: The HANMATEK DT50 Laser Distance Meter package contents.
The HANMATEK DT50 package typically includes:
- HANMATEK DT50 Laser Distance Meter
- 2 x AAA Batteries
- User Manual (this document)
- Carrying Pouch
- Wrist Strap
3.2 Device Features
- Measurement Range: 0.05m to 50m (0.16 ft to 165 ft)
- Measurement Accuracy: ±1/16 inch (±2mm)
- Units: Meters (m), Inches (in), Feet (ft), Feet + Inches (ft+in)
- Measurement Modes: Single Distance, Continuous Measurement, Area, Volume, Pythagorean (indirect measurement), Addition/Subtraction, Max/Min values.
- Data Storage: 20 sets of historical data
- Display: Large 2-inch backlit LCD for improved visibility in dark conditions.
- Durability: IP54 rated (splash-proof and dust-protected), soft rubber casing for anti-slip and anti-drop protection.
- Power Saving: Automatic shutdown after 150 seconds of inactivity.
- Additional Features: Automatic calibration, error reporting, mute function for quiet environments.
Image 3.2: The DT50's large backlit display and function icons.
Image 3.3: Physical dimensions of the DT50 device.
4. Setup
4.1 Battery Installation
The HANMATEK DT50 requires two AAA batteries for operation. To install or replace batteries:
- Locate the battery compartment cover on the back of the device.
- Slide the cover open in the direction indicated by the arrow.
- Insert two AAA batteries, ensuring correct polarity (+/-) as marked inside the compartment.
- Close the battery compartment cover securely.
5. Operating Instructions
5.1 Power On/Off
- To power on: Press the Power/Measure button (
). - To power off: Press and hold the Power/Measure button for 2 seconds, or the device will automatically shut down after 150 seconds of inactivity.
5.2 Unit Conversion
To change measurement units (m/in/ft/ft+in):
- Press and hold the Unit button (
) to cycle through the available units.
Image 5.1: Unit conversion and reference point selection.
5.3 Reference Point Selection
The device can measure from its front or rear edge. To change the reference point:
- Press the Reference Point button (usually indicated by an icon showing the device with an arrow). The current reference point will be displayed on the screen.
5.4 Basic Measurement (Single Distance)
- Ensure the desired reference point is selected.
- Point the laser at the target surface.
- Press the Power/Measure button. The measured distance will appear on the display.
Image 5.2: Performing a single distance measurement.
5.5 Measurement Modes
The DT50 offers multiple measurement functions. Press the Function button (often indicated by a square icon with multiple smaller squares) to cycle through modes.
Image 5.3: Examples of multiple measurement modes.
- Continuous Measurement: Activates a real-time measurement display, showing maximum and minimum values. Press the Power/Measure button to start and stop.
- Area Measurement: Measure two sides (length and width) to calculate the area.
- Volume Measurement: Measure three sides (length, width, height) to calculate the volume.
- Pythagorean Measurement (Indirect): Used to measure inaccessible heights or distances by taking two or three measurements to form a right triangle. Follow the on-screen prompts for each measurement step.
Image 5.4: Performing a Pythagorean measurement.
5.6 Data Storage
The DT50 can store up to 20 sets of measurement data.
- To view stored data: Press the Data button (often indicated by a folder icon). Use the arrow buttons to navigate through the stored records.
- New measurements are automatically saved.
Image 5.5: Data storage display.
6. Maintenance
6.1 Cleaning
Regular cleaning helps maintain the device's accuracy and lifespan:
- Wipe the device body with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Clean the laser lens carefully with a soft cloth, similar to cleaning camera lenses.
6.2 Storage
- When not in use for extended periods, remove the batteries to prevent leakage.
- Store the device in its carrying pouch in a cool, dry place, away from direct sunlight and extreme temperatures.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Batteries are dead or incorrectly inserted. | Replace batteries or check polarity. |
| Inaccurate measurements | Laser lens is dirty; measurement surface is too reflective/transparent; device is not stable. | Clean the laser lens; measure against a solid, opaque surface; ensure device stability. |
| Error message on display | Measurement out of range; internal error. | Ensure target is within 0.05m-50m range; restart the device. If error persists, contact support. |
| Laser beam not visible | Device is off; low battery; bright ambient light. | Power on device; replace batteries; use in lower light conditions if possible. |
8. Specifications
| Specification | Detail |
|---|---|
| Model | DT50 |
| Measurement Range | 0.05m - 50m |
| Measurement Accuracy | ±1/16 inch (±2mm) |
| Units | m / in / ft / ft+in |
| Laser Class | Class 2 |
| Automatic Shutdown | 150 seconds |
| Data Storage | 20 sets |
| Power Supply | 2 x AAA batteries |
| Dimensions (L x W x H) | 11.5 x 5 x 2.9 cm (approx. 15 x 8 x 6 cm packaged) |
| Weight | 200 grams (approx.) |
| IP Rating | IP54 (Dust and Splash Protected) |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Certifications | CE / FDA / FCC / ROHS |
| Country of Origin | China |
9. Warranty and Support
The HANMATEK DT50 Laser Distance Meter comes with a 24-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, accidents, unauthorized modifications, or improper maintenance.
For warranty claims, technical support, or service inquiries, please contact your retailer or HANMATEK customer service through their official website or contact channels. Please have your purchase receipt and product model number (DT50) available when contacting support.
