IRHD Micro Compact III Hardness Tester - New Generation
The 3rd series of this popular IRHD Hardness Tester line has a more convenient and user-friendly operation. Accurate IRHD Micro hardness measurement of soft elastomers such as O-rings, seals and gaskets, with thickness down to 0.6mm, is guaranteed.
IRHD Micro Compact III offers new advantages, with an excellent price/quality ratio. Testing of O-rings, molder samples with irregular shapes, seals, etc. are ideal applications for this model. A quick center lever allows quick and precise positioning of the samples and the measuring head comes with integrated display and keypad for ease of use. IRHD Micro Compact III comes with standard RS-232 data interface as well as exchangeable indenters.
The quick centering devices, Barofix and Centrofix, allow ideal positioning of O-rings as well as elastomer tubes and hoses for precise hardness measurement on the suitable section of the samples. The optional "HardTest" windows-based software offers data logging, management of articles, display of graphics and hardness curves, statistical evaluation, and further analysis of the measured values.
For quick and low-cost calibration services, Qualitest’s customers send only the measuring heads of the instrument while keeping the test stand and base of the instrument at their lab. The new IRHD Micro Compact III fully meets and exceeds ASTM D 1415, DIN 53519 sheet 2, ISO 48, and other international standards.
Standard Configuration
- Test Stand
- Measuring device IRHD M (micro) in storage case
- Serial interface cable RS 232
- Operating instructions

Expandability:Testing device with Barofix (Barofix Is not included in volume of delivery)
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Ranges of application |
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Type |
Ranges of application |
Standards |
Thickness |
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IRHD M (micro) |
thin walled O-rings, moulded parts, standard plates |
DIN IS0 48 (DIN 53519/2) NFT 46-003 ASTM D 1415 |
from O,6 mm |
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By IRHD Micro Compact III - the consequent further development
- The easy handling provides reliable and good reproducible results on soft elastic materials which is guaranteed.
- A new compact testing instrument has been created, which has already proven to offer very good price performance ratio.
Target group and operational areas
- As a manufacturer of testing instruments and as the first calibration laboratory of the German Calibration Services DKD - K 16501 for the measured variable Hardness, controlled by the PhysikalischTechnische Bundesanstalt PTB, Qualitest products appeal to all customers in quality assurance and development departments as well as those people working in control department of incoming goods in the rubber and plastics industries.
- The IRHD Micro Compact is ideal for the reliable hardness measurements on O-rings, moulded parts of complicated shapes, sealing etc., for which technicians can only apply small measuring distances or test loads.

The advantages of the IRHD Micro Compact III
- A quick center lever allows the quick, robust and precise positioning of the measuring area.
- Data output is integrated with the easy-to-use display and keypad inside the ergonomic housing of the measuring device.
- If needed, the indenter can be interchanged out or switched out by customer easily.
- For control- and calibration purposes, only the measuring device has to be sent in to Qualitest for serving, while the test stand remains in customer's laboratory.
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Options:
- BAROFIX - for quick centring of O-Rings
- CENTROFIX - for quick centring of rubber hoses
- HARDTEST® under windows - Software for data transfer and evaluation
- Printer
See Also
For further information or to place an order for the IRHD Micro Compact III Hardness Tester - New Generation, please CLICK HERE, call us Toll-Free at: 1.877.884.TEST, or click on the "HOW TO ORDER" Button


