Cannon Instrument miniPV-X - Manual (Page 60)

CANNON ® miniPV-Series Automatic Viscometer with VISCPRO ® Instruction & Operation Manual
Version 1.a— January, 2011; CANNON ® Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
54
miniPV Series instrument after each test. Higher viscosity materials may
require more rinses. Lower viscosity materials may require fewer rinses,
depending on the effectiveness of the solvent.
Max Solvent fill time(s) The Max Solvent fill time(s) setting determines if/when the user re-
ceives a screen prompt instructing him to check/refill the external solvent
vessel. Select a value from 1 to 60 seconds for this option. The recom-
mended default is 30 seconds. During this time, the VISCPRO software
monitors the filling of an internal solvent chamber in preparation for
solvent evacuation through the viscometer tube. The default setting
should allow adequate time for the required volume of solvent (approxi-
mately 12 mL) to be introduced into the internal solvent chamber under
normal conditions of vacuum/pressure. If the
Max Solvent fill time(s)
setting is too low, the internal solvent chamber may not be completely
filled with solvent in the time allotted and the screen prompt may be
displayed even when the external solvent vessel contains solvent.
Solvent flush time(s) The Solvent flush time(s) setting determines the amount of time (in
seconds) that the solvent pump will continue to operate after the solvent
chamber has emptied all solvent into the sample vial during a wash. This
allows time for the lines and viscometer tube to be purged of solvent.
Select a value from 1 to 60 seconds for this option. The time will vary
with the pressure setting (miniPV Series right front “ear” panel).
Tube tip soak time(s) The Tube tip soak time(s): setting determines the length of time that the
miniPV Series tube tip will soak in the solvent after the solvent has been
introduced into the sample vial. Select a value from 1 to 120 seconds for
this option. This is the amount of time that will be used for both a solvent
soak and a final solvent “bubble cleaning” following the evacuation of
solvent from the internal solvent chamber.
Final dry time(s) The Final dry time(s) setting determines the additional amount of time
forced air is channeled through the viscometer tube to dry it at the
conclusion of the rinse/dry cycle. Select a value from 15 to 300 seconds
for this option. The time period selected will be added to the preset dry
period of 108 seconds for normal tubes and 36 seconds for fast-run tubes.