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Combined Hardness Tester NOVOTEST T-UD3

The device operates both UCI (Ultrasonic Contact Impedance) and the Leeb (dynamic) probes. Getting benefit from two types of measurements is the ultimate advantage that a portable device can provide.


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.


Leeb method for the hardness testing

The Leeb hardness measuring method complies to ASTM A956.
The Leeb probe (D type) is used for hardness measuring of massive objects (more than 5 kg, and more than 10 mm) and made of steels non-ferrous metals,  cast irons, coarse-grained materials, e.t.c. Also, Leeb method perfectly complements with UCI hardness measuring method when UCI method is not applied.
This method is very fast and easy: place the probe on tested object vertically to the object surface, push the probe to charge the spring, press the button on the top of the probe to make measurement and save the hardness value, shown on the display. For the Leeb measuring method, NOVOTEST-UD3 automatically calculates hardness for a wide range of materials, like steel, stainless steel, cast iron, bronze, aluminum.
The combined hardness tester is the most universal, needs no recalibration, and is fully operational “out of the box”.

There are available different types (D, DC, DL, C, D+15, E, G) of Leeb probes. Detailed specification of Leeb probes by the link – http://novotest.biz/types-of-dynamic-leeb-probes/

When the measurements are made, the operator can take a photo of the sample with the built-in photo camera and place the results exactly where the measurements occurred (up to 5 results per picture).
The saved measurements results and pictures may be transferred to a PC using the “AWP” software, which supplied along with the hardness tester.
The hardness tester allows measuring the hardness at extremely low temperatures.
In reality, tests have been carried out at – 25°C. There was no problem to operate the device at all. Measurement accuracy did not exceed the accuracy standards. The Keyboard and display gave no troubles at all, and we found no difference using the device in the warm and cold environment!

Portable Combined Hardness Tester NOVOTEST T-UD3 is CE certified.


CE certificate

Brochure of Combined Hardness Tester NOVOTEST T-UD3.pdf

  • Small indenter imprint (suits for mirror surfaces of shafts necks, blades, gear teeth, etc.)
  • Measuring surface hardened layers hardness
  • Wide range of hardness testing
  • Various measurement modes
  • 88 combinations of materials and hardness scales (calibrations)
  • Calibration of any scale in any range
  • Convenience and ease of measurement
  • Optimized number of buttons
  • Large full-color graphic display with bright backlight
  • Built-in photo camera for thorough reports
  • Automatic probe types recognition
  • Connected probe types indication
  • The calibrations are stored in UCI probe memory
  • Extended operating temperature range (frost, down to – 40°C)
  • Internal memory and communication with a PC
  • New intuitive menu with tips on the buttons
  • Optional wireless mini printer
  • Waterproofed housing
  • Rubber bumper protected housing
  • Internal clock
  • Hardness value measuring for any mass products with more than 1 mm  thickness (small parts, thin-walled structures, pipes, tanks, steel sheets, articles of complex shape, hardness testing of metal coatings, etc.)
  • Different operating modes:
    • Graph – the graph building mode
    • Histogram – the histogram building mode
    • Statistics – provides statistics for the current set of measurements
    • Smart – filters the incorrect measurements
    • Signal – displays the probe signal (only for the Leeb probe)


UCI probe types
  • 1kgf (10N) 2.2 lbf
  • 5kgf (50N) 11lbf
  • 10kgf (98N) 22lbf
Leeb probe types
  • D
  • DC
  • DL
  • C
  • D+15
  • E
  • G
Measuring range
  • 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 A956
  • ASTM E140
Indenter UCI probe – Diamond indenter
Leeb probe – Hardened ball
Measuring direction Any direction 360°
Data storage Limited only by the memory card up to 32Gb
Communication Upload data to PC and export as a spreadsheet (USB cable and software included )
Hardness scales
  • UCI probe – HRC, HB, HV
  • Leeb probe – HRC, HRB, HB, HV, HL, MPa
  • Additional custom scales for calibration
  • Ultrasonic (UCI) probe – pre-calibrated for steel
  • Dynamic (Leeb) pre-calibrated for steel, alloy steel, cast iron, stainless steel, aluminum, bronze, brass, copper
  • Additional custom materials for calibration
Data display
  • Load applied/contact (UCI)
  • Angle (Leeb)
  • Single test result
  • Max, Min, Average of tests
  • Number of tests,
  • Deviation
  • Var. coeff.
  • Histogram, Signal and Smart Modes (Filter of incorrect measurements).
Indication Color LCD display (320×240)
Operating environment
  • Temperature:-20°C~40°C
  • Humidity: 30%~80%R.H.
Power supply DC 4,5V (3 pcs batteries AA)
Instrument dimensions 160x75x30mm
Net weight Approx. 0.3kg (without probe)
Gross weight (package) 2kg
Battery life Approx. 10 hours.
Warranty 3 (1+2) years


Operating Manual of Combined Hardness Tester NOVOTEST T-UD3.pdf

  • Additional UCI and Leeb probes (different types)
  • Different colors of rubber bumper protected case
  • Wireless printer
  • Batteries
  • Chargers
  • Hardness tests blocks
  • Set of support rings for D, DC type Leeb probes
  • Impact bodies for Leeb probes
  • Portable grinding machine
  • Case for hardness tester
  • Can be equipped with two types of UCI probes:
Model Load Features Main applications
UCI U1 (98 N) 98 N(10 kgf) The main type of probe for solving most problems of hardness measurement. 98 N 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. 50 N load is to be applied for measurement (automatically controled by the probe). Average surface cleannes requirements.Considered to be the Universal type for most general applications. –   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.-   Induction or carburized machined parts, e.g.. camshafts, turbines, weld inspection, HAZ.
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. 10 N load is to be applied for measurement (automatically controled by the probe).
More sensible to the surface cleanliness, in comparison with U1 (50 N).Load is easy to apply; provides control to test on a sharp radius.
–   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.
  • Hardness tester
  • UCI probe (10N, 50N or 98N for choice)
  • Leeb probe (D type)
  • 3pcs AA batteries
  • Charger
  • USB cable
  • Operating manual
  • Calibration certificate
  • Software for PC
  • Case

Combined Hardness Tester NOVOTEST T-UD3 with photo camera

Combined Hardness Tester NOVOTEST T-UD3. Video review


Correct UCI probe use for accurate results. UCI Hardness Tester NOVOTEST T-U3 (T-UD3)


Calibration UCI probe of Combined Hardness Tester T-UD3 


Combined Hardness Tester NOVOTEST T-UD3. Leeb probe application


Operation with portable wireless printer for Hardness Tester NOVOTEST T-UD3 


Combined Hardness Tester NOVOTEST T-UD3. Display modes