9
5.2.3.3 Scale conversion
This function can convert the measured Rockwell hardness value to other scales or strength. Such
as changing the value of HRA scale into HBS, HBW, HV and HK value; changing the value of
HRB scale into HB10, HB30, HV, HLD,
σ
b
and HK value; changing the value of HRC scale into
HBS, HBW, HV, HLD,
σ
b
and HK value; changing the value of HRD scale into HV, HK, HB
value; changing the value of HRE scale into HV, HK, HB value; changing the value of HRF scale
into HV, HB value.
For instance, if you intend to convert the HRC value to HV value, press
SETUP
, then
“
”
or
“
”
key to move the cursor to “3. Function. The press either the UP or DOWN arrow buttons to scroll
through functions until you see “COV”. Then press “
” to enter the conversion list. Scroll down
to HRC—HV” in figure 5.2.9, and then press “
” to confirm.
The conversion value will be shown simultaneously with the hardness scale the machine has been
set to take. As figure 5.2.6, the hardness value measured is 59.9HRC, conversion value is 696HV.
Each change is performed within the applicable scope when change is possible; “E” will be shown
on the display if setting is incorrect or not obtainable.
Figure 5.2.9 Figure 5.2.10
5.2.3.4 Curved surface correcting
The testing results should be corrected if the surface of sample measured is the external surface of cylindrical or
spherical.
Press “
Setup
” key then
Press “
”or“
” key to select cylindrical surface or spherical surface,
then press “
” to confirm as figure 5.2.10.
After that, press “
”or“
”key to determine curvature radius or the diameter of sphere, and press “
” to
confirm.
Once this parameter has been set, the measuring result as well as correcting value will be shown on the display.
Note:
screen will display respective hardness value (the direct testing result without correction) as well as the corrected
value. As figure 5.2.6, the measuring result is 59.9HRC and the correcting value is “+1.0” HRC.
5.2.3.5
Press “
Setup
” key to return to figure 5.1.1
;
or press “
”or“
”key to reset the other parameters.
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