Scratch Hardness Tester SCRATCHMARKER 249
24
BAE 249
7.2
Operation of the preselection counter
Counter reading
After each test the preselection counter C
rises by one point.
By actuating the start key the counter reading
is reset to zero.
Setting of the preset value
By means of the left key
you get into
menu "P" (programme).
By means of the key
you get into the
preselection menu.
With the help of the key
the blinking
digit is shifted one place to the right at each
keystroke.
By means of the key
it is now possible
to scroll the numbers 0 to 9 into the blinking
digit and to set the desired preselection
value.
If all digits to the right side have been
scrolled, the counter returns to the menu “P”.
By actuating key
you get back to the
test counter "C".
Here the preset tests (strokes) can now be
started by actuating the start key (A).
If only single scratches have to be carried out
via the start key (A), the preset value must be
"1".