Portable Refractometer Model SY-REF337 is a precision optical instrument especially for measuring the ice point of engine coolant and the operation state of battery charging liquid. It suitable for transportation vehicles, such as car,tractor,tank,ship etc, which use ethylene glycol as coolant,propylene glycol as charging liqid. It is characterized by small volume, lightweight and easy to operate it can be used from all sides.
Optical Refractometer SUKYOUNG SY-REF337 Series Adjusting the null liquid and specimen should be under the same temperature, if the temperature varied greatly, the null point should be adjusted every time. The prism must be cleaned completely, because any residual impurity on it cold cause error during measuring. Because the battery liquid contain sulfuric acid, it must be dipped by glass rod instead of your hand to avoid hurt of you. After usage, don’t use water to wash the instrument, so as to avoid entering into pipe of the instrument. As it is a kind of precision optical, you should hand it gently and take good care of it. Don’t touch and scratch the optical surfaces. It should be kept in the environment of dry, clean and non-corrosiveness air, so as to prevent the surface of it’s turning moldy and foggy. Please avoid strong shock during transportation. If the consumers use the instrument in accordance with the mentioned of usage, it guarantee that instrument can’t break down. The optical performance can’t change.
| Model | Measuring range | Minimum Scale | Size(mm) | Weight (g) |
| SUKYOUNG SY-REF337 | -50 ~ 0 | 5 | 26/30 x 40 x 160 | 180 |
| – 40 ~ 0 Cleaner | 10 | |||
| 1.100 ~ 1.40Kg/L | 0.01Kg/L |
