Engineering solutions in the field of
lubricants and sealants


Portable hand-driven refractometer to determine accurately lubricoolant concentration in water



  • Small size enables to use this device in constraint spaces
  • 2-3 drop of the solution is enough to get accurate measurements
  • Simple calibration of a prism and an ocular provides accurate and reproducible measurements
  • Convenient scale
  • Due to automated temperature adjustment in the 10 to 30°C range, it isn't necessary to use a correction scheme to do calibrating repeatedly
  • The hidden calibration screw prevents unintentional adjustment of the refractometer while it is being used
  • Double connection on the daylight plate guarantee accurate installation of the plate