Cannon Instrument CMRV-4500 User Manual
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CANNON
®
Mini-Rotary Viscometer CMRV-4500 Instruction & Operation Manual
Version 1.1e—October, 2011 •
CANNON
®
Instrument Company
2139 High Tech Road • State College, PA • 16803 • USA
8. Wait for the CMRV-4500 to reach the cleaning temperature.
NOTE
When the CMRV-4500 cleaning cycle is activated, the internal heater
raises the viscometer block temperature 2-3°C per minute to approxi-
mately 50°C. Precise temperature control is not necessary for cleaning.
9. When the CMRV-4500 has reached cleaning temperature remove the
rotors and wipe excess oil from them. Gently place the rotors into a
solvent-resistant container, such as a 500-ml glass beaker.
CAUTION
Be careful not to damage the rotor tips when handling the rotors.
10. Use a vacuum to remove oil from the viscometric cells.
11. Thoroughly rinse the
inside surfaces of each
cell at least twice with
oil solvent using a
squeeze bottle with a
length of plastic tubing
attached to the nozzle
(see photo). Direct the
stream from the spray
bottle in such a way that
the liquid swirls around
the inside walls of the
cell.
WARNING
Your solvent may be a hazardous substance. Use in accordance with
procedures recommended by your Material Safety Data Sheet (MSDS).
Avoid contact with skin and eyes. Avoid inhaling vapors. Use only in a
well-ventilated area.
12. Use vacuum to remove the solvent from the cells after each rinse.
13. Repeat steps 11-12 using acetone in place of solvent.
WARNING
Acetone is a hazardous substance. Use in accordance with procedures
recommended by your Material Safety Data Sheet (MSDS). Avoid
contact with skin and eyes. Avoid inhaling vapors. Use only in a well-
ventilated area.
14. After the final rinse, allow the acetone to evaporate from the visco-
metric cell until the surfaces are completely dry.
Cleaning rotors
15. Thoroughly rinse each rotor individually with oil solvent, then with
acetone. Properly dispose of waste liquid after cleaning.
16. After the final acetone rinse, place the rotors in a clean, dry area until
the remaining solvent on rotor surfaces has evaporated.
Solvent cleaning of CMRV test cells