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11.6
NoTE: It is very important that the Die, the Barrel and the Follower are scrupulously clean
and have been assembled correctly after cleaning.
It is also important that the PET Plus is set to the "Pre-Test" screen ready for testing.
THIS PROCEDURE IS PART OF THE MAIN PROCEDURE SHOWN IN SECTION 7.7.
Press the key under PURGE to allow a low volume of nitrogen gas to flow through the barrel to
displace any air that may be present. Allow the gas to flow for a few seconds to ensure that the barrel
is full of nitrogen.
Place the standard filling funnel onto the top of
the barrel.
Press the key under GAS OFF to stop the flow
of nitrogen gas.
Remove the bottom cap from the transfer vessel.
Place the bottom of the transfer vessel onto the
top of the filling funnel.
Turn the dispensing lever until the lever is point-
ing downwards. This will dispense a quantity of
polymer into the filling funnel
Remove the filling funnel from the top of the
barrel.
Insert a clean follower into the top of the barrel.
Insert the charging tool into the top of the barrel.
Immediately press the green GO key to start the
test. The "Charging" screen will be displayed.
Refit the bottom cap to the transfer vessel.
Turn the dispensing lever until the lever is
pointing upwards. This allows the polymer to
enter the dispensing mechanism ready for the
next test.
It is recommended that the low-pressure
nitrogen supply is reconnected to the Schrader
quick release inlet valve.
70 PET Plus User Manual
TESTING THE POLYMER
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