Cannon Instrument CAV-2000 - Manual (Page 25)

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CANNON ® Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO ® Instruction & Operation Manual
Version 2g — May, 2009; CANNON ® Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
Concluding a test
At the conclusion of a test, the drop time for the sample will be displayed
on the display screen. Record the drop time and press the Enter key to
return to the temperature display. Then remove the sample from the tray.
CAUTION Use appropriate procedures when handling heated sample trays and
heated samples to avoid the possibility of burns.
Empty the oil from the sample vials into the appropriate container(s) for
use/disposal and clean glass vials per approved laboratory procedures.
Wipe any excess oil from the table, sample tray and vial holders (glass
vials only) using an absorbent paper towel. If necessary, clean these items
by wiping with a paper towel wetted with appropriate solvent.
Obtaining kinematic viscosity (KV) readings in Local mode
Local/Remote operation of the CAV is selected via the RMT/LOC button
on the CAV keypad. Local mode operation involves CAV control via the
keypad. Remote operation involves CAV control via the VISCPRO
software interface. Pressing the RMT/LOC button on the CAV keypad
will toggle between the Remote and Local operation modes. To obtain
kinematic viscosity readings in local mode with the CAV 2000 Series
instrument, calibrate each bulb for each bath at the desired bath tempera-
ture using VISCPRO II with the instrument set in REMOTE mode.
After calibration, open the Tray Settings: Tube and Bath window for
the desired instrument. Make sure the settings are correct and close the
window by clicking the OK button. This action will transmit the bath
temperature(s), the soak times, and the current bulb calibration constants
to the instrument.
Press the RMT/LOC button on the CAV keypad to change the instrument
mode to LOCAL. Then press the Menu button on the CAV instrument.
On the screen, select option #7: Display KV : YES/NO. Toggle the #7
button to select the desired option. If YES is selected, the KV will be
displayed at the end of a test.
NOTE If the instrument is set to display KV, it will only display KV if the tube
calibration constants have been loaded as described above; otherwise, it
will display the efflux time. If multiple drops are required for a result, the
customer will need to average the KVs resulting from each drop.
Other Local mode keypad options
The Local mode keypad options described above are the more common
functions available. The Keypad Options table (see next pages) contains
a list of all Local mode keypad options, including entry parameters and
(where applicable) default instrument settings.
NOTES Any incomplete keypad command sequence may be cancelled by
pressing the keypad button that initiated the sequence.