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Verify the instrument has been calibrated before taking measurements.
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.
3. Press the
READ
key. The result is displayed in the selected units.
Note: The last measurement value will be displayed until the next
sample is measured or the instrument is turned off. Temperature will be
continuously updated.
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.
5. Using a plastic pipette, rinse prism and sample well with distilled or
deionized water. Wipe dry. The instrument is ready for the next sample.
MEASUREMENT PROCEDURES
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