The latest technology and intuitive application make the CARAT 930 into an extraordinary product for micro-hardness testing and optical evaluation. Measurements are performed highly precisely and easily through new, unrivalled methods. Our robust basic unit can be optimally suited to your requirements with our own in-house software modules and the CARAT sample clamping system.

The vibration-damped cast Aluminium body comprises a robust basis for the high load-bearing CARAT stage with automatic X/Y axis and automatic Z axis with 8-times objective revolver (LED illumination). Plane parallel samples in the CARAT sample clamping system and the fast lock vice 50 can be changed quickly and precisely using the “easy-clamp function”.

The software has been developed to accommodate either touch or mouse in a 64-bit-Version (WIN 7/8/10). All axes can be travelled via control module at the basic unit. Even the X & Y axes are controllable per joystick, adapting their speed to the individual objective. A scrolling wheel facilitates the especially fine dynamic travel of the Z axis. A button is available for rapid scroll.

The force transducer with microprocessor-controlled force regulation covers a loading range from 0.49 – 294.2 N with electronically-controlled load application. The corresponding software module carries out an evaluation such as with test load acc. to standard HV 0.05 – HV 30 (total test range 1g – 30 kg) with many series of measurement options.

Outcomes can be issued individually in a dynamic report generator with value tables and hardness sequence curves. The dynamic live image presents a clearly arranged and flexible image of the sample via objective-independent image-in-image function and periphery-scan. The automatic brightness regulation and auto-focus support a rapid image result which can be accelerated even more by the automatic level recognition with automatic quick-focusing. In case of unevenness, focus on the sample can be reconstructed through planar scan.

Product Advantages

  • Basic equipment for hardness testing and optical appraisal
  • Automatic Z-axis
  • Integrated joystick with dynamic speed control for X-/Y-axis
  • Oscillation-damped cast-Aluminium body
  • Safety concept
  • Integrated levelling & transport assistant
  • Software package CARAT collect (optional: CARAT connect / CARAT select)


Test load standard Vickers
Load range (DIN EN ISO 6507 + ASTM E-384) HV 0.05 - HV 30
Total testing range 1 g - 30 kg
Max. loading CARAT stage 60 kg
X-axis (CARAT stage) 160 mm or 250 mm
Y-axis (CARAT stage) 100 mm
Z-axis 150 mm
Objectives up to 6 in a 8-times revolver
Magnification 2.5x - 100x (2.5x / 5x / 10x / 40x / 50x / 100x)
Electrical supply data 100-240 V, 50/60 Hz (1 Ph/N/PE)
W x H x D 375 x 650 x 670 mm
Weight ~ 65 kg

Subject to technical modifications and errors