This optical refractometer (salinity meter) has scales in the range of 0 - 28 %.
The reading resolution is 0.2 %. It is designed for the measurement of salt solutions and brines.
Scale / characteristic :Salinity
Scale Range : 0 to 28 %
Resolution :0.2 %
The usual salinity of the selected aqueous solutions
Example: Salinity 36 ppt means, that there are 36 grams of salt in1 liter aqueous solution.
Fresh water : < 0.5 ppt
Brackish water : 0.5 to 30 ppt
Saline water (Sea water) : 30 to 50 ppt
Brine : > 50 ppt
The liquid measurement is very easy. Place a few drops of the liquid on the optical part of the refractometer,cover the prism (the liquid will spread more easily over the prism),look throught the eyepiece against the light (focus, if necessary) ,and you will be able to read the result value on the scale.
· reference temperature 20 C
· ATC - automatic temperature compensation (compensation range 0 ~ 30 C)