Maintenance of COS51D and COS51E

This Video shows a complete maintenance of the COS51D and COS51E. Starting with the cleaning of the sensor, dismount the membrane cap, polishing the cathode, exchange the o-ring and mount the sensor. For the COS41 it is a similar procedure. Calibration of COS51D and COS51E: https://youtu.be/3IqupIDQCWA More technical videos for Liquid Analysis: https://www.youtube.com/playlist?list=PLQRFGW1Z4TGH2X_z7fSdW8hNcYt3X33Bu COS51D website: https://eh.digital/3IqrBqU COS51E website: https://eh.digital/3GI6r6z 00:09: Intro 00:22 Required material 00:55 Safety equipment 01:05 Maintenance 04:11 Outro