Operation Manual
Hardness Tester NOVOTEST T-UD3
Page. 5
1 DESCRIPTION AND OPERATION OF THE DEVICE AND ITS COMPONENTS
1.1 The purpose of the device
The device is designed to measure hardness of:
−
metals and alloys on the Rockwell (HRC), Brinell (HB), Vickers (HV), Leeb (HL), Shore
(HS) hardness scales and others;
−
surface layer of metal subjected to fusing, spraying, mechanical, thermal and other types of
metal surface treatment;
−
cast iron, stainless steels and non-ferrous alloys, using the calibration mode on non-
standard hardness test blocks;
−
measuring of the tensile strength (
σ
v) for stretching products from carbonaceous steels of
the pearlite class by automatic recalculation from the Brinell hardness scale (HB).
The Hardness Tester allows instant analysis of the hardness of the product directly at the site of
operation or production of the product in workshop, laboratory and field conditions, for example, in
machine building, metallurgy, power engineering, shipbuilding and railway transport, aerospace and
oil and gas industry, repair and installation and service organizations etc.
The objects of measurement can be: pressure vessels for various purposes (reactors, steam
generators, collectors, boiler drums, gas holders, etc.), rotors of turbines and generators, pipelines,
rolls, crankshafts, gears, parts of various vehicles, industrial semi-finished products (castings, forgings,
sheets), etc. Also, the hardness tester can be used for:
−
assessing the stability of technological processes (product processing, welding, etc.);
−
diagnostics of equipment, in order to evaluate its residual safe resource (control of
hardness of pipelines, boilers, etc.);
−
assessing the quality of performed repairs;
−
heat treatment quality evaluation.
1.2 Technical characteristics of the device
The NOVOTEST T-UD3 hardness tester is a portable device made in an impact-resistant housing
(with a special protective silicone bumper-case for complicated operating conditions) inside which a
board with electronic components and accumulators are placed. The main characteristics of the device
are presented in Table 1.1, Table 1.2 shows the ranges of measurements, and characteristics of probes
are in Table 1.3.
Table 1.1 - The main characteristics of the device
Overall dimensions, mm
180х80х35
Powered by three NiMH batteries or AA batteries
each 1,2 V
Power supply current, not more than, mA
100
Time of continuous operation, not less than, h
10
Weight of electronic unit with batteries, not more than, g
250
Operating temperature range, ° С
from -20 to +40
Humidity, not more, %
from 30 to 80