Overview
YONGLIDA QHQ-A Portable Pencil hardness tester is a manual Portable instrument for measuring film Hardness, mainly used to determine film Hardness index. The instrument is suitable for laboratory and construction site, and can inspect film Hardness in any direction, in line with GB/T6739 standard.
Features
1. Portable design, easy to carry and use
2. Manual operation, easy to use
3. Hardness inspection in any direction
4. Suitable for laboratories and construction sites
5. Three different models of 500g, 750g and 1000g are available.
Principle
The QHQ-A Portable Pencil hardness tester makes the pencil lead contact with the tested surface through a specific load (500g) and a 45 ° test angle, and measures the film Hardness index by three-point contact (roller, pencil lead).
Applications
Laboratory, construction site
Steps
1. Choose the appropriate type of hardness gauge
2. Place the hardness gauge on the tested surface
3. Maintain a 45 ° test angle
4. Apply the specified load
5. Move the hardness gauge in any direction for testing
6. Observe and record test results
Notice
• Confirm that the load meets the test requirements before use
• Keep the 45 ° test angle accurate
• Ensure that the three-point contact (roller, pencil lead) is normal
• Avoid testing on rough or uneven surfaces
• Regularly check the status of the instrument to ensure the accuracy of the test
