This optical refractometer with five scales is designed for the measurement of coolants and antifreezes ,based on ethylene glycol or propylene glycol, and also for the measurement of battery fluid condition or for the measurement of screenwash antifreeze (windshield washer fluid) based on ethanol as well as on isopropyl alcohol.
Scale / Characteristic Scale Range Resolution
Ethylene glycol -50 to 0 Centigrade 1Centigrade
Propylene glycol -50 to 0 Centigrade 1 Centigrade
SRF1 - Screenwash antifreeze based on Isopropyl alcohol (IPA) -40 to 0 Centigrade 5 Centigrade
Screenwash antifreeze based on Ethanol -40 to 0 Centigrade 5 Centigrade
Battery fluid 1.10 to 1.40 kg/l 0.01 kg/l
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 Centigrade
· ATC - automatic temperature compensation (compensation range 0 ~ 30 Centigrade)