UCI Hardness Tester NOVOTEST T-U3


The Ultrasonic Contact Impedance (UCI) probe is used for measuring the hardness value of small items, objects with a thin wall, complex form, and to measure the hardness of surface hardened layers. Built-in camera allows user to picture of testing object and mark tested area with corresponding hardness value. UCI Hardness Tester NOVOTEST T-U3 has the sealed housing with rubber protective strips, it is ideal for use in workshop, and field conditions with high humidity, dust, etc. The hardness tester has frost-resistant display, which allows user to use the device at any season and in any climatic zone of the Earth. The device has PC software with a comfortable and intuitive interface.

UCI method for the hardness testing
The UCI hardness measuring method complies to ASTM A1038.
The ultrasonic contact impedance (UCI) probe is purposed to be used for hardness measuring in the case of the testing area minimal thickness (from 1 mm), objects of complex surface shape, and for measuring surface hardened layers hardness.

This method is very fast and easy: place the probe on the tested object surface, press the probe with the required effort to the surface and save the hardness value, shown on the display of the device. Small size diamond indenter allows measuring hardness value of all items, which are thicker than 1 mm. The UCI method of hardness testing is the least destructive because the hardness tester NOVOTEST T-UD3 with UCI probe leaves much smaller prints (imprints) than the majority of bench hardness tester would. That’s why a portable hardness tester with UCI probe is the best choice.


UCI probe types
  • 1kgf (10N) 2.2 lbf
  • 5kgf (50N) 11lbf
  • 10kgf (98N) 22lbf
Measuring range (with standard calibration)
  • HRC:20~70
  • HB:90~650
  • HV:230~940
  • Tensile strength, MPa: 370~1740
  • User calibrations for any range (for example: HV100-1600)
Measuring accuracy
  • HRC: 2HRC
  • HB: 10HB
  • HV: 15HV
  • ASTM A1038
  • ASTM E140
IndenterDiamond indenter (UCI)
Measuring directionAny direction 360°
Data storageLimited only by the memory card
CommunicationUpload data to PC and export as a spreadsheet (USB cable and software included )
Hardness scale
  • HRC, HB, HV
  • Additional custom scales for calibration
  • Pre-calibrated for steel
  • Additional custom materials for calibration
Data display
  • Load applied/contact (UCI)
  • Single test result
  • Max, Min, Average of tests
  • Number of tests
  • Deviation
  • Var. coeff.
  • Histogram
  • Signal and Smart Mode (Filter of incorrect measurements)
IndicationColor LCD display (320×240)
Operating environmentTemperature:-20°C~40°C; Humidity: 30%~80%R.H.
Power supplyDC 4,5V (3 pcs batteries AA)
Instrument dimensions160x75x30mm
Net weightApprox. 0.3kg (without probe)
Batteries lifeApprox. 10 hours


  • Hardness measurement of any mass products with a thickness more than 1 mm – inaccessible to the dynamic (Leeb) hardness testers (small parts, thin-walled structures, pipes, tanks, steel sheets, articles of complex shape, hardness control of metal coatings, etc.)
  • Measuring the hardness of the surface hardened layer
  • Small imprint after measuring (mirror surfaces of shafts necks, blades, gear teeth, etc.)
  • Wide range of hardness testing
  • Various measurement modes
  • Calibration of any scale in any range
  • Convenience and ease for measurement
  • Optimized number of buttons
  • Large full color graphic display with bright back-lighting
  • Calibrations stored in memory of probe
  • Extended temperature range (frost, down to – 40°C)
  • Internal memory and communication with PC
  • New, intuitive menu with tips on the buttons
  • Optional wireless mini printer
  • Water resistant case
  • Rubber protected bumper
  • Has different operating modes:

Graph – the mode of building of graph

Histogram – the mode of building of histogram

Statistics – the mode of statistic

Smart – the mode of filtering of incorrect measurements

Standard Packages

  • Hardness tester
  • UCI probe (10N, 50N or 98N for choice)
  • 3pcs AA batteries
  • Charger
  • USB cable
  • Operating manual
  • Software for PC
  • Calibration certificate
  • Case

Available Option

  • Additional UCI (10N, 50N, 98N) probes can be purchased. Also, after the purchase if will be needed, user can order dynamic Leeb probe (D, DC, DL, C, D+15, E, G) with activation code and will get combined hardness tester with two probes (Leeb+UCI).
  • Different colors of rubber bumper protected case
  • Wireless printer
  • Batteries
  • Chargers
  • Hardness tests blocks
  • Portable grinding machine
  • Case for hardness tester

UCI Hardness Tester NOVOTEST T-U3 can be equipped with three types of UCI probes:


ModelLoadFeaturesMain applications
UCI U1 (98 N)98 N(10 kgf)The main type of probe for solving most problems of hardness measurement. 10 kg load is to be applied for measurement (set automatically by the probe). Low requirements for surface cleanliness.–   Heat-treated and cemented details.-   Measuring in grooves, on teeth, on radius surfaces.-   Measurement on the blades, on the internal surface of the pipes, openings.
UCI U1 (50 N)50 N(5 kgf)The main probe type for the most tasks of hardness measurement. 5 kg. load is to be applied for measurement (automatically controled by the probe). Average surface cleannes requirements.–   Heat-treated and cemented parts, for example, shafts, turbines, gears, teeth, welds, heat affected zones.-   Measuring in grooves, on teeth, in grooves, on radius surfaces.-   Measurement on the blades, on the internal surface of the pipes, openings.
UCI U1 (10 N)10 N(1 kgf)The reduced load probe is designed to measure the hardness of material with increased requirements to the print size (polished surfaces), to measure the hardness of surface hardened layers. 1 kg. load is to be applied for measurement (automatically controled by the probe).
More sensible to the surface cleanliness, in comparison with U1 (50 N).
–   Nitrided and cemented surface layers of molds, stamps, stamps, thin-walled parts.-   Bearings, lateral surfaces of saws teeth.-   Measurement of hardness of hardening coatings.-   Measurement on the blades, on the inner surface of the pipes, inside the holes.


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