Product Overview
The HS-OOO digital OOO-type rubber durometer is suitable for measuring materials with a hardness <20 HO, such as extremely soft rubber, thermoplastic elastomers, sponges, very soft plastics and thermoplastics, foams, low-density textile coils, human and animal tissues, etc. This durometer supports handheld use or can be used with a fixed-load testing stand. It can also be connected to a computer via dedicated host software to achieve functions such as data storage, analysis, export, query, and printing. It is widely used in quality inspection, physical experiments, engineering testing, and other fields. This durometer complies with the American ASTM D2240 standard, corresponding to the Type OOO durometer.
Product Features
1. Features an LCD screen for intuitive reading.
2. Offers multiple measurement modes: Real-time mode (displays real-time hardness value changes), Peak mode (records the peak hardness value during testing), Auto-timing mode (allows setting force hold time, such as 3 seconds for vulcanized rubber and 15 seconds for thermoplastic rubber before reading), and Average mode (allows setting the number of tests).
3. Equipped with an auto-shutdown function.
4. Includes dedicated PC operation software with a Chinese WINDOWS interface.
5. The software supports multiple coordinate curve displays: real-time hardness value vs. time, peak hardness value vs. number of tests, and timed hardness value vs. number of tests.
6. The software features a pass/fail judgment function, automatically determining results based on preset standard value ranges.
7. The software supports unlimited automatic storage of test data and curves to the computer.
8. The software allows querying test data and exporting it to Excel format.
9. The software can compile, generate, and print test reports according to user-specified formats.
Working Principle
This hardness tester is designed in accordance with the American ASTM D2240 standard, corresponding to the Type OOO hardness tester. It applies specific pressure to extremely soft materials through an indenter to measure their resistance to indentation. In the automatic timing mode, the pressure can be set and maintained for a certain period (such as 3 seconds or 15 seconds) before reading the stable hardness value, to meet the testing standard requirements for different materials.
Application fields
Very soft rubber, thermoplastic elastomers, sponge, very soft plastics and thermoplastics, foam, low-density textile coils, hardness measurement of human and animal tissues, quality inspection, physical experiments, engineering testing.
Complies with standards
American ASTM D2240
Operating Steps
1. Select either a handheld device or a matching constant-load test stand based on measurement requirements.
2. After powering on, set an appropriate force-holding time in the automatic timing mode according to the material characteristics (such as vulcanized rubber or thermoplastic rubber).
3. Press the indenter vertically into the surface of the material being tested.
4. Observe the hardness value changes in real-time mode, record the peak value in peak mode, or read the stable value after the set time in timing mode.
5. If multiple measurements are required to calculate an average, set the number of tests in average mode.
6. Connect the device to a computer via a data cable and use the host software for data storage, analysis, export, report generation, and other operations.
Precautions
• This hardness tester is recommended for measuring materials with a hardness of <20HO.
• Ensure the device is sufficiently charged before use.
• Keep the indenter perpendicular to the surface of the material being measured during testing.
• Set the appropriate force holding time according to the type of material being tested (e.g., vulcanized rubber or thermoplastic rubber).
• When using the accompanying PC software, ensure compatibility with the computer system.
• To save power, turn off the device or enable the auto-shutdown function when not in use for extended periods.
