Dynamic Hardness Tester

The Digital Portable Hardness Tester is an advanced pocketable hardness tester distinguished by its high 

accuracy,  wide measuring  range,  simplicity of  operation & above all it is a really portable instrument 

operating on three pencil cells of size AA. It is suitable for testing the hardness of many materials & finds 

applications for hardness testing in many areas of industry.

Measuring Method:- The measuring principle is based on absorption of kinetic energy & its relation in

conventional scales of hardness. This is achieved with help of the probe, wherein a small body with a 

hard tip is propelled against the test surface by a spring & latch arrangement. The motion of body is the 

measure of its kinetic energy. The instrument converts the signal of absorbed energy in to a chosen scale 

of conventional hardness.

Typical applications for hardness testing with the portable hardness taster:-

1) In-situ hardness testing of individual parts or components in assembled machine.

2) Hardness testing of mould surface of a die.

3) Hardness testing of heavy components like rolls of rolling mill or sugar industry or paper industry.

4) Hardness testing of heavy pressure vessels.

5) Hardness testing of production line of components like crank shafts, cylinder blocks.

6) Checking hardness of material in stock.

7) Hardness testing when required in failure analysis.

Functions available on the display of Indicating Instrument of the portable hardness tester:-

1) Display of hardness in various conventional scales of hardness  as  given  in  chart below  for  the standard probe.

2) The instrument has compensation for the angle of probe with respect to vertical while testing.

3) Immediate conversion between available conventional scales of hardness.

4) Standard deviation & average results up to nine readings can be taken.

5) The readings can be recorded & recalled for later viewing. The max capacity being 500 readings. The

readings are stored serially & the serial number being displayed. There is a batch number facility as well to distinguish from batch to batch. The entire batch readings can be cleared or the batch number can be reset using the specific keys.

6) The  machine  calibration  can  be  done using the keyboard & there is no need of any expertise to recalibrate the machine.

7) Serial port (RS 232) or printer port (Centronics Compatible) is available on request