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Portable ultrasonic hardness tester TKM-459

Portable ultrasonic hardness tester TKM-459

It is intended for measuring hardness of metal and alloy articles with Rockwell, Brinell, Vickers. It consists of the dynamic transducer (sensor) and the electronic module.

The principle of tester operation is based on determination of frequency change in free oscillation of the indenter (an acoustic resonator with Vickers diamond pyramid) subjected to the constant force of 50 N.

It has passed type approval testing. Certificate No. 23959. It is registered with the State Register of Measurement Means under No. 31763 - 06.


Typical objects for measurements:

Main technical parameters:

Hardness measurement ranges by scales:
Rockwell Scale
Brinell Scale
Vickers Scale
20 ... 70 HRC;
90 ... 460 HB;
230 ... 940 HV.
Relative measurement error:
Rockwell Scale
Brinell Scale
Vickers Scale
1,5 %;
4,0 %;
3,0 %.
Number of measurement results stored in memory6000
Hardness tester power supplyrechargeable battery
Chief dimensions150 х80 х30 mm
Weight of electronic module with sensor0,4 kg
Category temperature range-10 ...+ 40 °С
Warranty2 years

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