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Instruction Manual MA887 Refractometer for Seawater 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. 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 results are displayed in unit of interest.
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.
Note
: The “
ATC
” tag blinks and automatic temperature compensation is disabled if the
temperature exceeds the 0-40 °C / 32-104 °F range.
4. Remove sample from the sample well by absorbing on a soft tissue.