MIC 20

The MIC20 combines the UCI and the Rebound method and covers thier complete application range from thin copper coatings to large forgings.

The MIC 20 is a versatile two-in-one tester combining the UCI (Ultrasonic Contact Impedance) and rebound test methods (standardized to ASTM A956, A 1038 and DIN 50156, 50159). The UCI method tests small and complex shaped parts comprised of fine-grained metals, while the rebound method is preferred for larger, coarse-grained forgings and castings.


STATIC PLUS DYNAMIC
* For the first time the Krautkramer MIC 20 combines the quasi-static UCI and the dynamic rebound hardness testing methods: the MIC 20 now places "hardness testing in a twin pack" at your disposal with these two different physical methods - and covers their complete application range.
This makes the MIC 20 a universal instrument: you can use it to test fine-grained materials having different masses and shapes or heat treated surfaces (UCI method), as well as large, coarse-grained components, forgings, and cast materials (rebound method).
TWO METHODS
* The UCI method (Ultrasonic Contact Impedance) determines the hardness of a material on the basis of the size of the test indentation left behind in the material by a Vickers diamond after applying the test load.
In the case of the rebound method, an impact body is impelled by spring force against the test surface. The impact and rebound velocities are each measured in a non-contact mode; the hardness value is calculated from these two values.
The MIC 20 automatically sets to the corresponding method as soon as you connect a UCI probe or a rebound impact device.
KEY FEATURES & BENEFITS
* Combined hardness tester for quasi-static hardness testing according to the UCI method (ASTM A1038) and dynamic hardness testing according to the rebound method (ASTM A956)
* UCI probes for hardness testing of fine-grained materials having different masses and shapes or heat-treated surfaces.
* Rebound impact devices for hardness testing on large, coarse-grained components, forgings, and cast materials
* Automatic scale conversion to HV, HB, HRC, HRB, HS, HL and N/mm2
* Operation by keys and/or integrated touch screen, easy input of alphanumerical data
* Power supply: mains adapter (100 V - 240 V) or NiMH battery pack MIC 20-BAT (internal charging)
* Internal data memory for approx. 5,000 measurement series
* Quick and easy calibration to various test materials. Calibration data are saved and can be recalled
* Non-directional measurement without input of any correction factors
* Large color TFT display shows all necessary information during measurement, such as average, single value, or statistical data at a glance
* Clearly arranged data memory to save measurement results in an easy and structured way. Measurement series can be recalled and edited.
FIELD-ORIENTED Ease of Use
is characteristic of the MIC 20. You can directly see the indicated measured value according to the selected hardness scale on the large color LCD or the color TFT display. The graphic user interface shown on the display is adapted to the known Windows standard and is intuitively presented. You don't need any mouse for the operation, merely a pen to touch the touch screen and to set the functions. As an alternative, you also have conventional pushbuttons at your disposal for most settings.
You will soon be able to cope with the operating concept: three main menus ensure easy access to the essential functions - so there's no chance of getting lost in a menu maze!
The MIC 20 makes for example the calibration easy for you. The setting parameters are then simply filed and recalled by pressing a button or by a "click" in the corresponding application case.
A straightforward data memory enables convenient and structured saving and management of test results. The MIC 20 also presents the necessary functions for your analysis: you can have your series of measurements displayed as a curve, histogram, or as a table with statistical data. You can print the data either directly on a printer or transfer them to the PC by means of the application software UltraDAT. You can use e.g. the Windows standard applications for further processing, evaluation, and statistics.
ON-SITE USE
with the mobile and flexible MIC 20 will certainly be something that you will like: besides a mains connection, the instrument is operated by means of our rechargeable battery pack allowing internal charging in the instrument. The display is switched off after a certain period of time and can be reactivated by touching the touch screen. A complete shutdown can also be triggered automatically after a preset period of time - which ensures an energy-saving operation.

The MIC 20 hardness tester is suitable for a complete range of hardness testing applications.

  • Ready-assembled machines
  • Heat-affected zone of a weld (e.g. pipeline)
  • Heat-treated surfaces (e.g. tooth flanks)
  • Coatings(e.g. rotogravure cylinders)
  • Rebound Hardness Testing:
  • Machine parts or motor units made of steel and cast aluminum alloys
  • Solid, coarse-grained components having a surface as rolled
  • Large series parts during production
  • Heavy forgings
  • Test methods: UCI method: hardness testing with an indenter according to Vickers, evaluation of the test indentation under load.
    Rebound method according to the ASTM standard specification A956: dynamic test method with a ratio of rebound (Rp) and impact (Ip) speed with hardness output in Leeb HL = 1000 Rp/Ip
  • Range: 20 - 1740 HV
  • Rebound Impact Devices: To be selected according to application:
    3 mm spherical tungsten carbide:
  • Metal tip Dyna D
    5 mm spherical tungsten carbide:
  • Metal tip Dyna G
  • Diamond test tip Dyna E
  • Measuring rangers/conversions(UCI): 20-1740 HV / 76-618 HB / 41-105 HRB / 20.3-68.0 HRC / 255-2180 N/mm (only with 98 N/10 kgf handheld probe)
  • Measuring ranges/conversions (rebound): Depending on material group and impact device:
    150-1000 HL / 75-1000 HV / 75-700 HB / 30-100 HS / 35-100 HRB / 19-70 HRC / 250-2200 N/mm
  • Display: Color display or color TFT display, 1/4 VGA, 5.7, 115.2 mm x 76.8 mm (4.5 x 3.0)
  • Dialog languages: German, English (others)
  • Conversion: Automatically according to DIN 50150, ASTM E 140
  • Evaluation: Representation of test data as a curve, histogram, or in tabular form; calculation of statistical data (e.g. average, standard deviation, range)
  • Automatic instrument shutdown: After a user-selectable period of time with automatic saving of test data and instrument settings
  • Keyboard: Sealed membrane keypad with integrated touch screen
  • Operating Time: ~4 hours in continuous operations with NiMH battery pack MIC 20-BAT
  • Battery charge indicator: Low-Batt indicator, instrument shutdown with low voltage
  • Operating system: WinCE
  • Interfaces: RS-232 bidirectional, Ethernet 10 Mbit
  • Operating Environment: Operation: 0 C to 50 C (-32 F to 122 F)
    Storage: -20 C to 70 C (-4 F to 158 F)
  • Weight: ~1.4 kg / 3.1 lbs (incl. MIC 20-BAT)
  • Dimensions: 78 mm H x 215 mm W x 180 mm D (3.1" H x 8.5" W x 7.1" D)