Hemocue WBC Error 30

Caused when  the optical parts are dirty or wet after cleaning. Prevent this by storing the device far away from dust.

Clear the error by; 

  1. Clean the optical parts by following the cleaning procedure as described in the User manual with a Hemocue Cleaner Plus brush.
  2. Wait 15 minutes before starting the analyzer after cleaning to make sure that the optical parts are dry.