1. Inleiding
Thank you for choosing the Elitech LDM-50D Laser Distance Meter. This device is designed for precise and efficient distance measurements, offering a range of functions for various applications in home DIY, interior design, and professional construction. This manual provides essential information for safe operation, setup, and maintenance of your device. Please read it thoroughly before use.
The LDM-50D features fast and accurate measurements up to 165ft (50m) with ±2mm precision. It includes versatile functions such as single, continuous, area, volume, and Pythagorean modes. The bright backlit LCD ensures clear readability, and it can store up to 99 measurements. Built-in dual bubble levels enhance measurement accuracy.
2. Veiligheidsinformatie
Laser veiligheid: This device emits a Class II laser. Do not stare directly into the laser beam or direct it at other people. Avoid pointing the laser at reflective surfaces. Always operate the device in a safe manner to prevent eye injury.
Batterijveiligheid:
- Use only AAA alkaline batteries as specified.
- Gebruik geen oude en nieuwe batterijen of verschillende soorten batterijen door elkaar.
- Zorg ervoor dat de batterijen met de polariteit in de juiste richting worden geplaatst.
- Verwijder de batterijen als u het apparaat gedurende langere tijd niet gebruikt, om lekkage te voorkomen.
- Gooi gebruikte batterijen weg volgens de plaatselijke voorschriften.
Algemene veiligheid:
- Houd het apparaat buiten bereik van kinderen.
- Probeer het apparaat niet te wijzigen of te demonteren. Reparaties mogen alleen worden uitgevoerd door bevoegd personeel.
- Stel het apparaat niet bloot aan extreme temperaturen, vochtigheid of direct zonlicht.
3. Product voorbijview
The Elitech LDM-50D is a compact and durable laser distance meter designed for ease of use and portability. It features a clear backlit display and intuitive button layout.
3.1 Pakketinhoud
- Elitech LDM-50D Laser Distance Meter
- 2 x AAA-batterijen
- Polsbandje
- Gebruiksaanwijzing

Image: Elitech LDM-50D Laser Distance Meter with included batteries, wrist strap, and manual.
3.2 Apparaatcomponenten

Afbeelding: Voorzijde view of the Elitech LDM-50D Laser Distance Meter, showing the display, control buttons, and dual bubble levels.
The device features a large backlit LCD for clear readings, a 'READ' button for measurements, 'OFF/CLEAR' for power and clearing, and various function buttons for mode selection and unit switching. It also includes dual bubble levels for enhanced accuracy.

Afbeelding: Achterkant view of the Elitech LDM-50D Laser Distance Meter, showing the battery compartment and product labels.
4. Instellen
4.1 Batterij installatie
- Zoek het batterijklepje aan de achterkant van het apparaat.
- Schuif het deksel open.
- Insert two (2) AAA alkaline batteries, ensuring correct polarity (+/-).
- Sluit het batterijklepje goed.
5. Gebruiksaanwijzing
5.1 In-/uitschakelen
- Druk op om in te schakelen LEZEN knop.
- Om uit te schakelen, houdt u de . ingedrukt UIT/WISSEN button for a few seconds. The device will also automatically power off after a period of inactivity.
5.2 Basisafstandsmeting
- Richt de laser op het doeloppervlak.
- Druk op de LEZEN button once. The measurement will appear on the display.

Image: A user holding the Elitech LDM-50D and taking a distance measurement to a wall.
5.3 Continue meting
This mode allows for dynamic measurement as you move the device. Press the mode button until the continuous measurement icon appears. The display will update in real-time as the distance changes.
5.4 Oppervlakte- en volumemeting
The LDM-50D can calculate area and volume automatically. Press the mode button to cycle through measurement modes until the desired icon (area or volume) is displayed. Follow the on-screen prompts to take the required length, width, and height measurements. The device will then calculate and display the result.

Image: The Elitech LDM-50D displaying icons for various measurement modes including distance, area, volume, and different Pythagorean calculations.
5.5 Pythagoreïsche meting
Use the Pythagorean mode for indirect height or diagonal measurements. Press the mode button to select one of the Pythagorean modes (e.g., for single indirect height, double indirect height). Follow the on-screen instructions to take the necessary measurements (e.g., base and hypotenuse). The device will calculate the unknown side.
5.6 Eenheidsschakeling
The device supports multiple units: meters (m), centimeters (cm), feet (ft), inches (in), and fractions. To switch units, long-press the 'U' button until the desired unit is displayed.

Image: The Elitech LDM-50D displaying various measurement units like inches, feet, and meters, with a prompt to long-press a button to switch units.
5.7 Gegevensopslag
The LDM-50D can store up to 99 measurement records. To review stored data, press the memory button. Use the arrow keys to navigate through the records. The top of the screen indicates how many records are saved.

Image: The Elitech LDM-50D display showing multiple measurement records, highlighting the 99-record storage capacity.
5.8 Reference Point Switching
The device allows you to switch the measurement reference point between the front edge and the rear edge of the device. This is useful for measuring from different starting positions. Refer to the display icon to confirm the active reference point.

Image: The Elitech LDM-50D illustrating two different reference points for measurement, from the front or rear of the device.
5.9 Productdemonstratievideo
Video: A demonstration of the Elitech LDM-50D Laser Distance Meter, showcasing its compact size, instant measurement capabilities, area and volume calculations, Pythagorean mode for indirect measurements, and unit switching functionality. It highlights the device's efficiency and ease of use for various measuring tasks.
6. Onderhoud
To ensure the longevity and accuracy of your Elitech LDM-50D, follow these maintenance guidelines:
- Schoonmaak: Gebruik een zachte, damp Gebruik een doek om het apparaat schoon te maken. Gebruik geen schurende reinigingsmiddelen of oplosmiddelen. Reinig de laserlens voorzichtig met een zachte, pluisvrije doek.
- Opslag: Store the device in a cool, dry place, away from direct sunlight and extreme temperatures. Remove batteries if storing for extended periods.
- Duurzaamheid: The device is designed to be dustproof and drop-resistant (IP54, 1m drop resistance). However, avoid unnecessary drops or impacts to maintain accuracy.

Image: The Elitech LDM-50D highlighting its dustproof (IP54) and drop-resistant (1m/3.3ft) construction, made from ABS Engineering Plastic.
7. Probleemoplossing
If you encounter issues with your LDM-50D, refer to the following common problems and solutions:
| Probleem | Mogelijke oorzaak | Oplossing |
|---|---|---|
| Apparaat gaat niet aan | Lage of lege batterijen; onjuiste batterijinstallatie | Vervang de batterijen; controleer de polariteit van de batterijen. |
| Onjuiste metingen | Unstable surface; Obstruction in laser path; Dirty lens; Measurement taken from wrong reference point | Ensure stable measurement; Clear laser path; Clean lens; Verify reference point setting |
| Laserstraal niet zichtbaar | Bright ambient light; Device not powered on | Move to a darker area; Power on device |
| Het display is donker of onleesbaar | Low batteries; Extreme temperature | Replace batteries; Move to a moderate temperature environment |
8. Specificaties
| Functie | Specificatie |
|---|---|
| Meetbereik | 0.05m to 50m (165ft) |
| Nauwkeurigheid | ±2 mm (±1/16 inch) |
| Meeteenheden | m / cm / ft / in / ft+in |
| Meetmodi | Single, Continuous, Area, Volume, Pythagorean (various types) |
| Gegevensrecords | Maximaal 99 groepen |
| Laserklasse | Klasse II, <1 mW |
| Lasergolflengte | 630-670nm |
| Weergave | LCD met achtergrondverlichting |
| Stroomvoorziening | 2 x AAA alkalinebatterijen (meegeleverd) |
| Automatische laseruitschakeling | 30 seconden |
| Automatic Device Off | 180 seconden |
| Bedrijfstemperatuur | 0°C tot 40°C (32°F tot 104°F) |
| Opslagtemperatuur | -20°C tot 60°C (-4°F tot 140°F) |
| Afmetingen (L x B x H) | 11.2 x 5 x 2.5 cm (4.4 x 2.0 x 1.0 inch) |
| Gewicht | 0.15 kg (0.33 lbs) |
| Materiaal | ABS-technisch kunststof |
| IP-classificatie | IP54 (Dustproof & Splash-proof) |
| Valweerstand | 1 m (3.3 voet) |
9. Garantie en ondersteuning
Elitech products are manufactured to high-quality standards. For detailed warranty information, please refer to the official Elitech website or the warranty card included with your product. If you require technical support or have questions regarding your LDM-50D Laser Distance Meter, please contact Elitech customer service through their official channels.