Milwaukee Instruments MA887 Digital Seawater Refractometer Calibration Procedure.

Milwaukee Instruments MA887 Digital Seawater Refractometer Calibration Procedure.
NOTE: Please only use distilled water to Zero your unit. DO NOT us RO/DI water unless you are absolutely sure you have zero TDS! This can affect the accuracy of your unit.
Design features
Fast, accurate results with digital dual level LED readout
Easy measurement with just 2-3 drops of sample needed and results less than 2 seconds
Automatically temperature compensated
Simple one-point calibration using distilled or deionized water
Easy to clean, stainless steel sample well with unit rated to IP65 as "dust tight" and protected against water jets
Battery percent level indicator with automatic shut-off (batteries included)