Sper-scientific 300038 Software for 300037 Refractometer Instrukcja Użytkownika Pobierz pdf (Strona 9)

There are several available dimensions (units of measure) used for taking Refractometer measurements, depending on

the application and type of substance being measured. A common unit of measure is percentage (%) by weight. Use a

high resolution digital balance to produce solutions at various concentrations and equate them to the percentage of

dissolved solids by weight. For example:

1ml of H

O is weights approximately 1g. A solution of 9g of water and 1g dry solids produces a 10%

concentration. Pure distilled water (0% dissolved solids) is 1.3330nD. A 10% solution (NaCl) is 1.3505nD.

After creating your concentrations, measure them with the nD scale, and collecting the results, the next step is to enter these

key-values into the software.

Enter Your Key-Values into the Software

1. Click on the Custom Scale icon on the Toolbar.

Note: To open Custom Scale, the Refractometer must be connected to the computer and turned on. If errors

occur, verify the serial port settings (see: Serial Port Configuration above)

2. The Custom Scale screen is divided into a functions and chart section.

Figure 7

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Sper-scientific 300038 Software for 300037 Refractometer Instrukcja Użytkownika Strona 9