1. Introducció
Thank you for choosing the INKBIRDPLUS LDM-D50 Laser Distance Meter. This device is designed for precise and efficient measurement of distances, areas, and volumes. It is an essential tool for professionals and DIY enthusiasts alike. This manual provides detailed instructions for safe operation, setup, various measurement modes, maintenance, and technical specifications to ensure optimal performance and longevity of your device.
2. Informació de seguretat
Si us plau, llegiu i enteneu totes les instruccions de seguretat abans d'utilitzar el dispositiu. Si no seguiu aquestes instruccions, podeu patir exposició al làser, descàrrega elèctrica, incendi o lesions greus.
- Seguretat làser: This device uses a Class 2 laser (620-690nm, <1mW). Do not irradiate people or animals with the laser directly or indirectly. Avoid direct eye exposure to the laser beam.
- No desmunteu ni modifiqueu el dispositiu. Les reparacions només les ha de realitzar personal de servei autoritzat.
- Mantingueu el dispositiu fora de l'abast dels nens.
- Do not use the device in explosive atmospheres or near flammable liquids and gases.
- Assegureu-vos que les piles estiguin inserides correctament d'acord amb les marques de polaritat.
3. Contingut del paquet
En desempaquetar, comproveu que tots els elements que s'enumeren a continuació hi són presents i en bon estat:
- INKBIRDPLUS Hand-held Laser Distance Meter (LDM-D50) x 1
- Manual d'usuari x 1
- AA Battery (LR6 1.5V) x 2 (Note: Product specifications state batteries are included, but some listings may vary. Please check your package.)
- Corretja de mà x 1
- Bossa portàtil x 1

Figura 3.1: INKBIRDPLUS LDM-D50 Laser Distance Meter with its accessories, including a hand strap, portable bag, user manual, and AA batteries. The image also shows the device dimensions: 121mm height, 56mm width, and 28mm depth.
4. Producte acabatview
The INKBIRDPLUS LDM-D50 is a compact and durable laser distance meter designed for various measurement tasks. It features a clear backlit LCD and intuitive button layout.

Figura 4.1: Davant view of the INKBIRDPLUS LDM-D50 Laser Distance Meter. The device features a large digital display at the top, showing measurement readings and icons for various functions. Below the display are several control buttons: a large 'MEAS' button for measurement, an 'OFF/CLEAR' button, and a '+/- UNIT' button for unit selection and addition/subtraction. Two bubble levels are visible on the side and bottom for horizontal and vertical alignment.
4.1 Components del dispositiu
- Emissor/receptor làser: Situat a la part superior del dispositiu.
- Pantalla LCD: 2.4-inch backlit screen for displaying measurements and settings.
- Botó MEAS: Inicia les mesures.
- Botó OFF/CLEAR: Turns the device off or clears the current measurement.
- Botó UNIT: Switches measurement units (m, in, ft, ft/in) and enables addition/subtraction.
- Botons de funció: For selecting different measurement modes (distance, area, volume, Pythagorean).
- Nivells de bombolla: Integrated for horizontal and vertical alignment.
5. Configuració
5.1 Instal·lació de la bateria
The INKBIRDPLUS LDM-D50 requires two AA batteries (LR6 1.5V) for operation.
- Localitzeu la tapa del compartiment de la bateria a la part posterior del dispositiu.
- Feu lliscar o desenganxeu la tapa per obrir el compartiment.
- Introduïu dues piles AA, assegurant-vos de la polaritat correcta (+ i -) tal com s'indica a l'interior del compartiment.
- Tanqueu bé la tapa del compartiment de la bateria.
6. Instruccions de funcionament
6.1 Encès/Apagat
- Encès: Premeu el botó MEAS button once to turn on the device. The laser will activate.
- Apagar: Manteniu premut el botó DESACTIVAT/ESBORRAT button for a few seconds to turn off the device.
- Funció d'apagat automàtic: The laser will automatically turn off after 30 seconds of inactivity. The entire device will power off after 180 seconds of inactivity to conserve battery life.
6.2 Canvi d'unitats
Premeu el botó UNITAT button repeatedly to cycle through the available measurement units: meters (m), inches (in), feet (ft), and feet/inches (ft/in).

Figura 6.1: The device display illustrating the selection of 4 different measurement units (m, ft, in, ft/in) and the capability to store up to 10 sets of history data. It also highlights the IP54 rating for dustproof and waterproof protection.
6.3 Modes de mesura
The LDM-D50 supports various measurement functions. Press the dedicated function buttons to select the desired mode.

Figura 6.2: Visual representation of the four primary measurement modes: Distància (single linear measurement), Àrea (calculating surface area from two measurements), Volum (calculating cubic volume from three measurements), and pitagòric (indirect measurement using the Pythagorean theorem).
- Mesurament de distància única: Premeu MEAS once to activate the laser, then press MEAS again to take a measurement.
- Mesura de l'àrea: Seleccioneu el mode d'àrea. Feu dues mesures de distància consecutives (longitud i amplada). El dispositiu calcularà i mostrarà l'àrea automàticament.
- Mesura de volum: Seleccioneu el mode de volum. Feu tres mesures de distància consecutives (longitud, amplada i alçada). El dispositiu calcularà i mostrarà automàticament el volum.
- Mesura pitagòrica: Select the Pythagorean mode. Follow the on-screen prompts to take the required measurements (e.g., hypotenuse and one leg) for indirect height or distance calculation.
- Mesura contínua: In single distance mode, press and hold MEAS to enter continuous measurement. The device will display real-time maximum and minimum distances as you move it. Press MEAS de nou per sortir.
6.4 Emmagatzematge de dades
The device can store up to 10 sets of measurement data. Use the history data button (if available, typically indicated by a folder icon) to review mesures anteriors.
6.5 Mode de silenci
The LDM-D50 features a mute mode, ideal for use in quiet environments such as libraries, museums, or classrooms. Refer to the device's specific button for activating/deactivating the mute function (often a speaker icon or long press of a specific button).

Figura 6.3: The device's large backlit LCD display ensures clear readability in low-light conditions. The image also depicts the mute mode feature, which allows for silent operation, suitable for environments where noise is a concern.
7. Manteniment
Proper maintenance ensures the accuracy and longevity of your laser distance meter.
- Neteja: Utilitzeu un suau, damp cloth to clean the device. Do not use abrasive cleaners or solvents. Clean the laser lens gently with a soft cloth, similar to cleaning camera lenses.
- Emmagatzematge: Store the device in its protective case in a cool, dry place when not in use. Remove batteries if the device will not be used for an extended period to prevent leakage.
- Protecció: The device has an IP54 rating, providing protection against dust and splashing water. However, it is not fully waterproof; avoid submerging it in water. The soft rubber casing provides anti-skid and anti-collision protection.

Figura 7.1: The INKBIRDPLUS LDM-D50 is designed for portability and durability, featuring a shatter-resistant silicone case, a portable bag, and a hand strap for secure handling and transport.
8. Solució De Problemes
If you encounter issues with your LDM-D50, refer to the following common problems and solutions:
| Problema | Causa possible | Solució |
|---|---|---|
| El dispositiu no s'encén | Piles baixes o gastades; instal·lació incorrecta de la bateria | Canvieu les piles; assegureu-vos de la polaritat correcta |
| Mesures inexactes | Laser lens dirty; Unstable measurement surface; Environmental factors (strong light) | Clean laser lens; Ensure stable positioning; Measure in suitable conditions |
| Làser no visible | Strong ambient light; Laser auto-off activated | Measure in dimmer conditions; Press MEAS button to reactivate laser |
| Mostra un missatge d'error | Measurement out of range; Internal error | Ensure target is within 0.05m-50m range; Restart device; Contact support if persistent |
9. Especificacions
Technical specifications for the INKBIRDPLUS LDM-D50 Laser Distance Meter:
| Característica | Especificació |
|---|---|
| Marca | INKBIRDPLUS |
| Model | LDM-D50 |
| Interval de mesura | 0.05m - 50m (165ft) |
| Precisió | ± 2 mm |
| Unitats de mesura | m, in, ft, ft/in |
| Tipus làser | 620-690 nm, <1 mW |
| Grau làser | Classe 2 |
| Classificació IP | IP54 (Dustproof & Splash-proof) |
| Emmagatzematge de dades de l'historial | 10 Grups |
| Mida de la pantalla | 2.4 polzades |
| Font d'alimentació | 2 x AA Batteries (LR6 1.5V) |
| Durada de la bateria | Max 5000 points (once fully charged, if rechargeable; otherwise, per set of batteries) |
| Apagada automàtica del làser | 30 segons |
| Auto Device Off | 180 segons |
| Dimensions | 121 x 56 x 28 mm (4.76 x 2.2 x 1.1 polzades) |
| Pes net | 102 g (3.6 oz) |
| Color | Negre i vermell |
10. Garantia i Suport
For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official INKBIRDPLUS weblloc web. També podeu contactar amb el vostre distribuïdor per obtenir ajuda.