PET Plus User Manual 61
Release the clip at the front of the grinder and
lift the lid.
Note that for safety the blades CANNOT rotate
when the lid is lifted.
Ensure that the grinder blade, grinding bowl
(with slits), collecting funnel and collecting bowl
are thoroughly clean.
The recommended way to clean these items is
by using a vacuum cleaner, and / or by hand
using a soft brush.
Weigh out 20 to 30g of polymer, which can be
in the form of cube cut, masson cut or lace cut
material and place into the grinding bowl with
0.5mm wide slits.
Place a clean receiving bowl under the funnel
at the front of the grinder to collect the ground
sample.
Place the filled grinding bowl centrally in the top
of the cleaned collecting funnel of the grinder.
Using a suitable container, pour liquid nitrogen
into the grinding bowl until the level of the liquid
is about 1cm or 1/2” above the polymer chip
level.
Shown: Poymer grinder
Collecting Funnel
Shown: 0.5mm Grinding Bowl
Collecting Bowel
WARNING:
ALWAYS WEAR SAFETY GLASSES AND HEAT RESISTANT GLOVES
WHEN HANDLING LIQUID NITROGEN WHICH IS AT -196ºC
