10
6.
Standardization (In case of PR-301α)
CAUTION
◇ Perform standardization with a standard liquid in a 18～25℃ environment.
◇ When the refractometer is used for the first time after purchase or the battery is
replaced, make sure to perform the "zero setting"(standardization) for the
refractometer.
◇ Do not use any metallic implement for putting a round sheet or the like on the prism
because the meal tool possibly damages the prism surface.
Flashes 3 times
000 is displayed.
Clean the prism
with alcohol.
Completely cover prism surface
Clean the prism
surface thoroughly.
Apply the standard
liquid.
(Standardization) Button.
3.5℃
3.5℃
Alcohol
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