Product Overview
The HS-OO digital OO-type rubber durometer is suitable for measuring the hardness of extremely soft rubber, thermoplastic elastomers, sponges, very soft plastics and thermoplastic polymers, foams, low-density textile coils, as well as human and animal tissues. It is particularly recommended for materials with a hardness of <20 HO. This durometer can be used handheld or in conjunction with a constant-load testing stand, and can be connected to a computer via dedicated host software to achieve data storage, analysis, export, query, and printing functions. It is widely used in quality inspection, physical experiments, engineering testing, and other fields. This product complies with the American ASTM D2240 standard, corresponding to the Type OO durometer.
Product Features
1. LCD screen display for intuitive reading.
2. Features multiple measurement modes: real-time mode, peak mode, auto-timing mode, and average mode.
3. Auto-timing mode supports force-holding time settings to accommodate different material standards (e.g., 3 seconds for vulcanized rubber, 15 seconds for thermoplastic rubber).
4. Equipped with an auto-shutdown function.
5. Includes a powerful Chinese Windows-based PC software that supports multiple coordinate curve displays (real-time hardness value vs. time, peak hardness vs. number of tests, 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. Test data and curves can be automatically and unlimitedly stored on the computer.
8. Test data can be queried and exported to Excel format.
9. Test reports can be compiled and printed according to user-specified formats.
Working principle
This durometer is designed in accordance with the American ASTM D2240 standard, corresponding to the Type OO durometer. It characterizes the hardness of a material by measuring the depth or resistance of a specific indenter pressed into the material under a standard test force. The device features multiple intelligent measurement modes, enabling real-time display of hardness changes, peak value recording, readings after maintaining the test force for a preset time, or calculating the average of multiple measurements to obtain accurate and reliable hardness values.
Application areas
Extremely soft rubber, thermoplastic elastomers, sponge, extremely 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
ASTM D2240 Standard
Operating procedures
1. Choose between handheld operation or use with a fixed-load testing stand based on measurement requirements.
2. Power on the device and select the appropriate measurement mode (e.g., real-time, peak, automatic timing, or average mode) according to the type of material being tested.
3. If using the automatic timing mode, set the corresponding force holding time (e.g., 3 seconds for vulcanized rubber, 15 seconds for thermoplastic rubber).
4. Press the durometer indenter vertically and steadily into the surface of the material being tested.
5. Observe the reading on the LCD screen and record the hardness value after meeting the set conditions (e.g., time reached, peak locked, or a specified number of measurements completed).
6. For data analysis, connect the durometer to a computer via a cable and open the dedicated host software.
7. In the software, you can view real-time curves, set qualification standards, store data, query historical records, export Excel files, or generate printable reports.
Precautions
• This hardness tester is recommended for measuring materials with a hardness of <20HO.
• Ensure the indenter is clean and intact; apply pressure vertically and steadily during measurement.
• Correctly set the force hold time in automatic timing mode according to the standards of the material being tested.
• Using a matched constant-load test stand can improve test repeatability and accuracy.
• When connecting to the host computer software, ensure the dedicated connection cable is used and the driver is properly installed.
• Regularly calibrate and maintain the equipment to ensure measurement accuracy.
