Návod k použití tvrdoměru Linshang LS252D Leeb

1. Úvod

The Linshang LS252D is an integrated, pen-type Leeb hardness tester designed for precise measurement of various metallic materials. It features a D-type impact device and advanced dual coil technology, ensuring high repeatability and accuracy. The device includes a built-in direction sensor for automatic compensation of measurement errors across different impact directions. It supports conversion between multiple hardness scales: Leeb (HL), Vickers (HV), Brinell (HB), Shore (HS), and Rockwell (HRA/HRB/HRC). This instrument is certified for accuracy by authoritative metrology institutes.

2. Obsah balení

Po obdržení zkontrolujte prosím obsah balíku, abyste se ujistili, že jsou všechny položky přítomny a nepoškozené:

• Leeb Hardness Tester (LS252D) x 1
• Nylonový kartáč 1x
• Small Support Ring x 1
• USB datový kabel x 1
• Návod k použití x 1
• Certificate / Warranty Card x 1

3. Vlastnosti produktu

• D-type impact device for measuring the hardness of various metallic materials.
• Advanced dual coil technology for good repeatability and measurement accuracy.
• Built-in direction sensor automatically compensates for measurement errors in different impact directions.
• Integrated design, flexible to adapt to various measurement occasions.
• Accuracy up to ±6HL, guaranteed to pass inspection by authoritative metrology institutions.
• Interchangeable hardness scales: HL, HV, HB, HS, HRA, HRB, HRC.
• USB interface for direct charging via power supply.
• Built-in data for 10 metal materials, including steel, alloy tool steel, stainless steel, gray cast iron, etc.

4. Specifikace

5. Nastavení

5.1 Nabíjení zařízení

The LS252D is powered by a rechargeable lithium battery. Before first use, or when the battery indicator on the OLED display shows low power, connect the device to a power supply using the provided USB data cable. The USB interface allows for convenient and quick direct charging.

5.2 Příprava na měření

1. Ujistěte se, že je zařízení plně nabité.
2. Clean the surface of the material to be tested. The surface should be smooth, free of rust, oil, paint, or any other coatings that could affect the measurement.
3. Ensure the test piece is stable. For thin or light workpieces (less than 5 kg or 25 mm thick), they must be firmly coupled to a solid support to prevent movement during impact. The minimum thickness after coupling should be 3mm.

6. Návod k obsluze

6.1 Zapnutí/vypnutí

• Zapnutí: Stiskněte tlačítko Tlačítko zapnutí (labeled with a power symbol) located on the front of the device.
• Vypnout: Stiskněte a podržte Tlačítko zapnutí dokud se zařízení nevypne.

6.2 Selecting Hardness Scale

The LS252D supports multiple hardness scales. Use the navigation buttons (up/down arrows) to cycle through and select the desired hardness scale (HL, HV, HB, HS, HRA, HRB, HRC) on the OLED display.

6.3 Provedení měření

1. Ensure the D-type impact device is properly seated.
2. Place the tip of the impact device firmly and perpendicularly against the prepared surface of the material to be tested.
3. Slowly push the load sleeve down until it clicks, indicating the impact body has been released.
4. The hardness value will be displayed on the OLED screen. The built-in direction sensor automatically compensates for measurement errors regardless of the impact direction (360° measurement).
5. Repeat the measurement several times in different spots to ensure accuracy and consistency.

7. Údržba

• Čištění: Use the provided nylon brush to gently clean the impact device after use, removing any debris or dust. Do not use harsh chemicals or abrasive materials.
• Nabíjení: Recharge the device regularly to maintain battery health. Avoid completely draining the battery for extended periods.
• Skladování: Store the LS252D in its carrying case in a dry environment within the specified storage temperature range (-10~60℃, 0~85% RH, no condensation).
• Kalibrace: While the device is factory calibrated and guaranteed to pass inspection, periodic checks with a certified test block are recommended for critical applications.

8. Řešení problémů

If you encounter issues with your LS252D, please refer to the following common troubleshooting steps:

• Zařízení se nezapíná: Ujistěte se, že je baterie nabitá. Připojte zařízení ke zdroji napájení USB a zkuste to znovu.
• Nepřesné údaje:
  • Check if the test surface is clean and smooth.
  • Verify the test piece is stable and properly coupled if it's thin or light.
  • Ensure the impact device is held perpendicularly to the surface.
  • Confirm the correct hardness scale is selected.
• Impact device not firing: Check for any obstructions in the impact device mechanism. Ensure the load sleeve is pushed completely down.

Pokud problémy přetrvávají, kontaktujte prosím zákaznickou podporu pro další pomoc.

9. Uživatelské tipy

• For optimal accuracy, perform multiple measurements on the same sample a zprůměrujte výsledky.
• Always ensure the impact direction is stable, even with the automatic compensation feature, to minimize external variables.
• Keep the device and its accessories in the provided carrying case to protect them from dust and physical damage.
• Familiarize yourself with the different hardness scales and their appropriate applications for your specific materials.

10. Záruka a podpora

The Linshang LS252D Leeb Hardness Tester comes with a warranty. Please refer to the included Certificate / Warranty Card for detailed warranty terms and conditions. For technical support, service, or any inquiries not covered in this manual, please contact the manufacturer or your authorized dealer.