ix
•
Clean the unit only by wiping it with a soft, dry cloth or, when neces-
sary, with a cloth lightly moistened with water. Do not use any solvents,
cleaning alcohol or chemical cleaning agents.
•
The optional stand (VA-04) is useful to stabilize the viscotester during
long-term or continuous measurements.
•
To ensure continued accuracy, have the unit checked and serviced at
regular intervals. Contact the supplier.
•
In case of malfunction, do not attempt any repairs. Note the condition of
the unit clearly and contact the supplier.