Leeb TKM-359CE Controls Hardness of Following:

• All basic types of metals and alloys without additional calibrations (structural, tool, corrosion-proof, heat-proof, non-corrosive steels and alloys as well as alloys of nonferrous metals, castiron, aluminium, bronze, brass);
•  Items with surface hardening and high frequency current hardening;
•  Items of complicated configuration;
•  Heavy and big items with rough surface.

Exploitation Advantages

• Wide range of controlled metals and alloys.
•  Low sensitivity to the curvative and roughness of surface.
•  Monitoring of hardness change along the surface.
•  Stable measurements independent from force and time of pressing the probe to the surface.
•  Possibility of material identification in blank production.
•  Control of “volumetric” hardness.

Features of Leeb TKM-359CE:

•  Impact-, dust- and water- proof housing;
•  Intuitive graphic interface;
•  Bright color graphic display allows working at below zero temperature and stays bright at any lighting;
•  Signalization of exceeding of prescribed readings threshold;
•  Unique system of statistic data processing and averaging of readings;
•  Fast adjustment of readings and programming of additional calibrations to basic scales by 2 or less standard blocks;
•  Flexible device memory for recording of readings and their analysis;
•  Programming of additional scales calibrations of  hardness tester by 2 or less standard test blocks;
•  Fast programming of additional scales by 2 to 10 standard test blocks.

Probes characteristics

Photo	Probe Type	Length, mm	Diameter, mm	Application
	«D»	138	21	Solving the bulk of control problems
	«E»	138	21	Probe with indenter made of polycrystalline of boron nitride intended for control of materials with high hardness
	«G»	200	29	Control of items with high structural heterogeneity and roughness Ra from 3.2

Requirements to Controlled Item:

•  Items heavier than 5 kg and thicker than 6 mm need no additional preparation.
•  Hard items (eg tubes) with awaited hardness from 90 to 250 HB and thicker than 4 mm need no additional preparation.
•  Other items should be fixed on a support plate by fixing paste.
•  Roughness of controlled surface providing best measurement accuracy depends on a probe.

Hardness Testers modes

The parameters of the statistical processing of measurements

• Maximum, minimum, mean value, standard deviation from the mean.
•  The average deviation from the values set by a user, results are more/less the values, the maximum deviation in the large/smaller side of the value.
•  Number of results outside the upper/lower limit of range (user specified), maximum deviation from the upper/lower border.
•  Automatic garbage results, incorrect measurement.
•  Comparison of results of measurements in the series (the comparison charts on the display of the leeb hardness tester).

TECHNICAL PARAMETERS