The Alex 500 Alcohol and Extract meter, combines the NIR (near-infrared) measuring technology and the oscillating U-tube method for simultaneous alcohol and density measurements.

An immaculately clean measuring cell is the pre-condition for correct and highly accurate results. Thus, thorough and
regular cleaning of the Alex 500 measuring cell is essential. Possible deposits and dirt need to be removed regularly
with appropriate cleaning agents.

When, how and how often should the measuring cell be cleaned? - you can find an answer in this allication report.