Dual-solvent washing, Solvent wash by computer (remote mode) – Cannon Instrument CAV-2000 User Manual
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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
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The speed of these mechanisms should be set to allow them to function
smoothly and efficiently without spilling or splashing the sample.
Adjusting knob settings
Turn the control knob clockwise to increase the speed of the mechanism.
Turn the control knob counterclockwise to decrease the speed of the
mechanism.
After adjustments are complete, close the hinged access panel.
NOTE
Closing the access panel will also lock it.
Dual-solvent washing
For testing heavy oils or hard-to-clean materials, CANNON
®
Instrument
Company recommends a dual-solvent washing system. The dual-solvent
washing process uses two different solvents. The first wash might
ordinarily use a heavy solvent to clean the sample residue out of the
viscometer tubes. The second wash might use a lighter solvent to clean
the remaining sample and solvent residue from the viscometer tube.
Consult the CAV Installation & Setup Guide for information on dual-
solvent connections.
Solvent wash by computer (Remote mode)
Use the following procedure for computer-controlled solvent washing:
Procedure
1. If the desired tube is testing a sample, wait until the test is complete
OR click the Abort button from the Sample Input window and
select the tube/tray to abort from the Select Trays window. Then
click OK.
2. Proceed with the solvent wash by clicking on Service/Wash Vis-
cometer Tube from the VISCPRO
®
primary menu options and then
selecting the proper tube (Tube 1 is on the left; Tube 2 is on the right)
to be washed by clicking the corresponding tube tab in the Wash
Viscometer Tube window.
3. After you have selected the desired tube, click on Begin Wash to
initiate a solvent wash using current wash settings. During the wash
cycle, the Begin Wash button will change to Abort Wash. If it is
necessary to interrupt the wash cycle, click Abort Wash.