How to replace the cleaning wiper of COD sensor?

The online COD sensor produced and developed by Daruifuno is a optical sensor. It adopts the UV 254nm absorption method. The chemical oxygen demand sensor can measure the water COD value continuously. It has a cleaning wiper for automatic cleaning under water to reduce the maintenance. How to replace the wiper? This video will show the method of replacing the wiper. If you are interested in the online water TOC COD sensor, welcome to our website to know more information.