Key Features - General EMHT40 User Manual

where V is the voltage produced during the rebound of the impact device and V
b
voltage produced during the impact of the impact device.
Leeb hardness values (HL) can be converted to values using other hardness units such as HV,
HRC, HRB, HB and HS. The EMHT40 can also display readings using several of these hardness
units. However, to maintain the accuracy of measurements all hardness values must describe
not just the testing method but the type of impact device as well.
For example, a hardness value of 510 on the Leeb scale determined by using the "D" type
tungsten-carbide impact device provided with the EMHT40 would be described as 510HLD.

KEY FEATURES

 Conforms to ASTM A 956
 Compact, easy to use and reliable
 Displays minimum, maximum and average values
 Wide measuring range, with display of hardness values in any of the following units:
Leeb HL, Rockwell HRB and HRC, Vickers HV, Brinell HB and Shore HS
 Impact device works at any angle, even upside down
 1250 reading internal memory and USB cable for interfacing to a PC
is the
a
-4-