KERN ORA 1 RE, Руководство по эксплуатации

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7 ORA_90BE-BA-e-1510
5 Supplied items
After unpacking and before using the device for the first time, check that all listed
parts have been supplied. Replace damaged or faulty parts immediately and do not
put them into operation.
Refractometer
Storage box
Pipette
Tools
Cleaning cloth
6 Before the first use
Remove the protective film (if present) from the prism surface [2] and move the
measuring range adjusting wheel [3] to position 1.
7 Use/measurement
The refractometer can be used to quickly and accurately determine the refractive in-
dex of transparent substances, liquid or solid ones. Please make sure your hands are
dry before handling the measuring device.
The measuring instrument has three measuring ranges. Please use the measuring
range adjusting wheel on the underside of the casing to switch measuring ranges.
The light falling on the prism can be changed using a rotating flap on the underside of
the prism.
In addition, the refractometer is provided with an adjusting ring [4], which can reduce
chromating, primarily with low liquid concentrations.
The light/dark transition is clearly visible.