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3. NOTES AND PRECAUTIONS
• The refractometer will automatically shut
off after about 3 minutes of inactivity.
• After each use, clean the SAMPLE
PLATE (1) and PRISM (3) with distilled
water on a soft cloth, and wipe dry.
• If a film develops on the PRISM (3) it will
repel test samples and affect readings.
If this occurs, clean with a mild detergent.
• The prism is easily scratched, never use
abrasive cleaning materials.
• Never submerge.
• Avoid spills around the unit.
• Avoid prolonged use or storage in
extreme temperatures.
• o not use in corrosive environments.
• o not drop or shake the unit.
• Use the protective carrying case to
prevent physical damage.
4. CALIBRATION
Calibration should be performed daily before
sample testing begins or when you suspect
that the reading may be inaccurate. For
best results, perform the calibration in a
controlled environment of 68°F (20°C).
