Hand Refractometer for Urine and Protein, ATC, Built-in LED Illuminator

Measure range:
1.000-1.050 sg
Min. Div:
0.002 sg
Accuracy:
± 0.002 sg

Measure range:
1.3300 RI – 1.3600 RI
Min. Div:
0.0005 RI
Accuracy:
± 0.0005 RI

Measure range:
0-12 g/dl
Min. Div:
0.2 g/dl
Accuracy:
± 0.2 g/dl

Hand Refractometer for Urine and Protein, ATC, Built-in LED Illuminator

USE OF A REFRACTOR

Using the instrument is simple. First the surfaces of the prism and the cover are washed with distilled water and carefully wiped (This cleaning is done after each use of the instrument).

Calibration

Before the measurement is made, the instrument is adjusted by placing 1-2 drops of distilled water at a temperature of 20 ° C, on the surface of the prism covered with the movable cover. Looking at the field of view in the light, the line separating the light from the dark field must coincide with the 0 of the scale, if it does not coincide then turning the adjusting screw is arranged to coincide.

Measurement

After adjusting the instrument, 1-2 drops of the liquid are placed on the surface of the prism and the field of view in the light is observed. The reading occurs when by moving the instrument screw, the dividing line separating the light from the dark field is clearly displayed.