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IRHD Compact III – Automatic Hardness Tester

Product Information:

Automatic Hardness Tester IRHD Compact III
This cost-effective modular semi-automatic hardness tester can easily test samples like O rings, seals, and tube-shaped elastomers. By means of interchangeable measuring devices for methods IRHD M and IRHD N, soft elastomers with a thickness of up to 0.6mm are easily tested with highly reliable results. The contact pressure and measuring time of this hardness tester are according to international standards. Hardness Tester IRHD Compact III has the capacity to store up to 300 test results and comes with interchangeable probes according to the requirements of the operator. The optional “BareissOne” windows-based software offers data logging, management of articles, display of graphics and hardness curves, statistical evaluation, and further analysis of the measured values.

3 Years Warranty

  • Automatic Hardness Tester - IRHD Compact III

Features and Benefits:

1) The unit consists of an electronic display along with a resolution of up to 0.1 IRHD
2) Data transmission can be done with an RS-232 interface.
3) Interchangeable probes from Micro to normal depending on the sample used to test
4) IRHD Compact III hardness tester is a semi-automatic hardness measuring instrument that is very cost-effective
5) O rings, seals, and tube-shaped samples can easily be tested with the help of special fixtures that attach to the instrument.
6) The embedded memory is used to store up to 300 test results as well as optical and acoustic signals during the measuring process.

Technical Data

voltage power supply set INPUT: 100 – 240 VAC; 50/60 Hz OUTPUT: 3,3 VDC
protection class IP 50
resolution 0.1 IRHD
measuring range IRHD M / IRHD N
measuring time 1 - 99 s
data output   V24 RS 232 - 9600 Baud, 1 Start bit, 8 Data bits, 1 Stop bit
dimensions (LxWxH), weight   Test Stand : 200 x 250 x 570 mm, 9,0 kg   Measuring Device IRHD M : 160 x 100 x 140 mm, 1,4 kg   Measuring Device IRHD N : 70 x 90 x 150 mm, 1,9 kg   Pick-up bracket IRHD N : 100 x 100 x 150 mm, 1,3 kg
Test Method Total Force(mN) Force on foot(mN) Indenter ball Ø (mm) Measuring distance (mm) Range of reading
IRHD M 153.3mN 235mN 0.4 mm 0.3 30-100
IRHD N 5.7N 8.3N 2.5 mm 1.8 30-100


Test Method Range of Application Norms Minimum Material Thickness [mm]
IRHD M hoses, tubes O-rings, moulded parts, norm plates and seals DIN ISO 48,
ASTM D 1415,
NFT 46-003,
BS903 Part. A 26
  IRHD N   soft rubber, high elastic materials, plastic ductile materials DIN ISO 48,
ASTM D 1415,
NFT 46-003,
BS903 Part. A 26

Basic equipment

Electronic display, RS 232 Data transmitter, Interchangeable probe

Testing Methods

IRHD Micro, IRHD Normal


ISO 48-2| NF ISO 48| DIN 53512| ASTM D 1415| ASTM D792

ISO/17025 Accredited Calibration Certificate

Official ISO/17025 accredited calibration certificate is available for IRHD M & IRHD N


IRHD COMPACT III Specifications

Test method: IRHD M

Test Method: IRHD M

Test method: IRHD N

Test Method: IRHD N
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