Operation Manual
Hardness Tester NOVOTEST T-UD3
Page. 13
This method is suitable for hardness measurements on products of various weight and thickness,
and especially on finished products with a glossy surface, as it leaves a minimally visible imprint after
measurements.
The design of the ultrasonic probe makes it possible to carry out measurements in hard-to-reach
places (for example, the surface of gear teeth, etc.), as well as on thin-walled structures (eg. pipelines,
etc.) that could not be measured by the Leeb probe.
It should be taken into account that the result of the measurement by the UCI method depends on
the Young's modulus of the test sample.
1.7 Means of measurement, tools and accessories
The correct work of the device is checked by the hardness measuring of the reference hardness test
blocks (2 category), reference hardness blocks should be grounded through a lubricant layer to the
grinding plate weighing not less than 5 kg. Mismatch readings must not exceed the permissible error
(Table 1.2). If the permissible error is exceeded, user should calibrate the instrument in accordance
with 2.3.7.
In case of device defect the manufacturer is obliged to make adjustment and installation of the
device.
1.8 Marking and sealing
There is a label with device type and trademark of the manufacturer on the front panel of the
device.
The serial number is printed on the back panel, under the battery compartment cover.
1.9 Packing
The electronic unit and the probe are delivered in a package (case), excluding their damage during
transportation.
To avoid mechanical damage to the cable and connectors of the device, it is necessary to
disconnect the probe from the device before packing it into the package.