1. Introduktion
This manual provides detailed instructions for the setup, operation, and maintenance of your JOYALENS JL249MS 3 Lens 10.1 Inch LCD HDMI Digital Microscope. Please read this manual thoroughly before using the device to ensure proper functionality and longevity.
The JL249MS is a versatile digital microscope equipped with a 10.1-inch LCD screen and three specialized lenses, offering magnification ranges from 18X to 2040X. It supports UHD 2160P video recording and 24MP still image capture, with HDMI and USB output options for larger display and PC compatibility. Its robust metal stand and flexible lighting make it suitable for a wide array of applications, including electronics repair, coin observation, and biological studies.
2. Hvad er inkluderet
Ved udpakning skal du kontrollere, at alle nedenstående komponenter er til stede:
- Mikroskop x1
- Metal stand x1
- 3 Lenses (Lens A x1, Lens D x1, Lens L x1)
- USB-kabel x1
- Switch cable x1
- HDMI kabel x1
- Fjernbetjening x1
- Slide holder x1
- Slides kit x5
- Observation box x1
- Pincet x 1
- 32GB Micro SD card x1
- Instruction x1 (this manual)

Figur 2.1: Overview af inkluderede komponenter.
3. Opsætningsvejledning
Follow these steps to assemble your digital microscope:
- Attach the Main Column: Secure the main vertical column to the base plate. Ensure it is firmly screwed in.
- Install the Secondary Bracket: Slide the secondary bracket onto the main column. This bracket allows for precise height and magnification adjustments. Tighten the screws to secure it at the desired height.
- Monter mikroskopenheden: Attach the microscope unit (with the LCD screen) to the secondary bracket. Ensure the connection is secure.
- Connect Lenses: Select the appropriate lens (Lens A, D, or L) for your observation needs and screw it onto the microscope unit.
- Positionsbelysning: Adjust the flexible LED lights to illuminate your observation area effectively.
- Tænd: Connect the power cable to the microscope and a suitable USB power source (not included).
Video 3.1: Detailed guide on metal bracket installation for the microscope.

Figure 3.1: Assembled microscope with various components.
4. Betjeningsvejledning
4.1 Lens Selection and Magnification
The JL249MS comes with three interchangeable lenses, each designed for specific magnification ranges and working distances:
- Lens L (60-240x): Ideal for electronics repair, soldering circuit boards, and general close-up work. Focus Range: 90mm-300mm.
- Lens A (18-720x): Suitable for observing larger objects like coins, rocks, plants, and precious stones. Focus Range: 12mm-320mm.
- Lens D (1800-2040x): Designed for high-magnification observation of biological slides and microscopic specimens. Focus Range: 4mm-5mm.

Figure 4.1: Different lenses and their applications.

Figure 4.2: Lens L in use for soldering and repairing.

Figure 4.3: Lens A in use for observing coins, plants, and stones.

Figure 4.4: Lens D in use for biological slides observation.
4.2 Display and Output Options
The microscope features a 10.1-inch LCD screen for direct viewing. For larger displays or recording, it offers HDMI and USB connectivity:
- HDMI udgang: Connect the microscope to an external monitor or TV using the provided HDMI cable for a larger view.
- USB-udgang: Connect to a computer (Windows XP/7/8/10 compatible) via USB. The included PC software provides image development, measurement tools, and advanced compositing features.
- Micro-SD-kort: Insert the included 32GB Micro-SD card to save captured images and videos directly on the device.

Figure 4.5: HDMI and USB output options for larger viewing.
4.3 Foto- og videooptagelse
The microscope supports capturing high-resolution photos and videos:
- Videoopløsning: UHD 2880x2160 at 24fps; FHD 1920x1080 at 60fps/30fps; HD 1280x720 at 120fps. Video format: MP4.
- Billedopløsning: Max 5600x4200 (24M). Photo format: JPG.
- Use the remote control or on-device buttons to initiate photo and video capture.
5. Vedligeholdelse
- Rengøring af linser: Use a soft, lint-free cloth specifically designed for optical lenses to clean the microscope lenses. Avoid abrasive materials or harsh chemicals.
- Generel rengøring: Tør mikroskopets hus af, og stil det med en tør eller let fugtig klud.amp klæde. Brug ikke opløsningsmidler.
- Opbevaring: Store the microscope in a clean, dry place away from direct sunlight and extreme temperatures. When not in use, cover the lenses to prevent dust accumulation.
- Håndtering: Håndter altid mikroskopet forsigtigt. Undgå at tabe det eller udsætte det for hårde stød.
6. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Intet billede på skærmen | Power not connected; Lens cap on; Incorrect focus; Brightness too low/high. | Check power connection; Remove lens cap; Adjust focus knob; Adjust LED light brightness. |
| Sløret billede | Incorrect focus; Dirty lens; Wrong lens for working distance. | Adjust focus precisely; Clean the lens; Ensure correct lens (A, D, or L) is used for the object's distance. |
| Kan ikke optage billeder/videoer | SD card full or not inserted correctly; SD card format issue. | Ensure SD card is inserted properly; Delete old files or use a new SD card; Format the SD card via microscope settings (this will erase all data). |
| PC software not working | Driver issue; Software compatibility; USB connection problem. | Reinstall PC software and drivers; Ensure your Windows version is supported (XP/7/8/10); Try a different USB port or cable. |
7. Specifikationer
| Feature | Detalje |
|---|---|
| Skærmstørrelse | 10.1 tommer LCD |
| Video opløsning | UHD 2880x2160 24fps; FHD 1920x1080 60fps/30fps; HD 1280x720 120fps |
| Videoformat | MP4 |
| Foto opløsning | Max 5600x4200 (24M) |
| Fotoformat | JPG |
| Magnification (Lens A) | 18-720x |
| Working Distance (Lens A) | 12 mm-320 mm |
| Magnification (Lens D) | 1800-2040x |
| Working Distance (Lens D) | 4 mm-5 mm |
| Magnification (Lens L) | 60-240x |
| Working Distance (Lens L) | 90 mm-300 mm |
| PC-support | Windows XP/7/8/10 (PC software with measurement) |
| Opbevaring | Micro-SD card, up to 32GB (32GB card included) |
| Strømforsyning | USB 5V DC (plug not included) |
| Metal Stand Size | 20 cm x 18 cm x 33 cm (7.87 x 7.09 x 12.99 tommer) |
| Varens vægt | 5.24 pund |
| Materiale | Metal |
8. Garanti og support
For warranty information and technical support, please refer to the official JOYALENS webwebstedet eller kontakt deres kundeservice direkte. Gem din købskvittering som købsbevis i tilfælde af garantikrav.
Du kan også finde yderligere støtte og ressourcer på JOYALENS Store on Amazon.