ALTANA Cupping Tester - Manual (Page 28)

3.0 Cupping Test Carry out the cupping test as follows:
• Insert a test panel (max. thickness
1 mm) into the the cylinder opening.
• Turn the eccentric clamping ring
(10) to slightly clamp the test panel.
• Press the START button K and
closely watch the sample through
the stereo microscope.
• With the fi rst visible crack of the
paint
fi lm on the test panel press the
STOP button and read the cupping
value from the digital display.
• Press the REVERSE button L to
move back the indenter.
• After the indenter reaches the initial
position, loosen the eccentric
fastening device and take out the
test
panel.