Antifreeze concentration refractometer 05134

Antifreeze concentration refractometer

Optical refractometer for measuring the freezing point of fluids in windshield wiper systems, cooling systems, and car battery electrolyte. For measuring the freezing point of fluids based on ethylene glycol and propylene glycol. Easy calibration, simple operation, and adjustable focus. The accuracy of measurement can be affected by impurities on its surface - keep the instrument clean and after each measurement, clean the surface with a damp cloth.

Measurement range:
Ethylene glycol -50 °C - 0 °C
Propylene glycol -50 °C - 0 °C
Windshield washer fluid -40 °C - 0 °C
Car battery electrolyte 1.000 - 1.400

Scales:
Ethylene glycol 5 °C
Propylene glycol 5 °C
Windshield washer fluid 5 °C
Car battery electrolyte 0.01 sg

Calibration: Apply distilled water to the optical part of the instrument so that it covers the entire surface. Close the lid and use the included screwdriver to set the zero level. When the boundary line of light and dark color matches the lower boundary line of the measuring range, the instrument's zero value has been set.

Measuring instructions:
After cleaning, use the included pipette to take a sample of the liquid for testing. Open the lid of the optical part and apply with the pipette enough liquid to cover the entire surface. Close the lid and hold the instrument against the light. Through the eyepiece, you can read the measured value. If the value is unreadable, adjust the focus distance of the device. At the boundary of light and dark color, you need to read the measured value.