ALTANA Mechanical Cupping Tester - Manual (Page 12)

13
English
Operation
width and length of at least 70 mm and
a thickness range of 0.3mm to 1.25mm
(maximum).
• Do not exceed the above figures as this may
cause permanent damage to the instrument.
Operation Notes (cont.)
Zero Datum
All measurements are taken from the zero
datum position (where the indenter is level with
the bottom sample clamp-ring). Press the button
(at any position) to zero the display. Note that
the LCD will display ZEr0 when the indenter is
below the last zero position, but will change
to a numeric display when the indenter is level
with, or higher than the last zero position. ZEr0
will flash when the indenter is approximately
0.5 mm below the bottom clamp ring.
It is not necessary to re-zero the datum position
when power is switched off and on. However,
large ambient temperature changes will affect
the readings to a small extent, and it is good
practice to regularly re-zero the instrument. The
datum will need resetting if the batteries are
changed.
Power Off
The power will go off automatically after about
5 minutes if the instrument is not used (handle
not moved). Power can also be removed by
pressing the button and keeping it depressed.
ZEr0 will flash of and on quickly for about 3
seconds followed by OFF on the LCD; the button
may then be released. The zero position will
NOT be altered by this process, provided the
button is not released before OFF is shown.