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Instruction Manual MA871 Refractometer for Sucrose Measurements
MEASUREMENT PROCEDURE
Verify the instrument has been calibrated before taking measurements.
1. Wipe off prism surface located at the bottom of the sample well.
2. Using plastic pipettes, 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.
3. Press the READ key. Measurement is displayed in units of % BRIX.
Note: The ATC tag blinks and automatic temperature compensation is disabled if the
temperature exceeds the 10-40 °C / 50-104 °F range.
4. Remove sample from the sample well by absorbing with a soft tissue.
4. Gently absorb the ZERO water standard with a soft tissue. Use care not to scratch
the prism surface. Wipe off the surface completely. The instrument is ready for
sample measurement.
Note: If instrument is turned off the calibration will not be lost.
