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Instruction Manual MA882, MA883, MA884 & MA885 Refractometers
for Wine and Grape Product Measurements
MEASUREMENT PROCEDURE
Verify the instrument has been calibrated before taking measurements.
For
MA884
and
MA885
select the desired measurement unit (see page 14).
1. Wipe off prism surface located at the bottom of the sample well. Make sure the prism
and sample well are completely dry.
2. Using a plastic pipette, drip sample onto the prism surface. Fill the well completely.
Note
: If the temperature of the sample differs significantly from the temperature of the
instrument, wait approximately 1 minute to allow thermal equilibration.
4. Gently absorb the ZERO water standard with a soft tissue. Use care not to scratch
the prism surface. Dry the surface completely. The instrument is ready for sample
measurement.
Note
: If instrument is turned off the calibration will not be lost.
