4690 Series Turbidity Sensor Wiper Blade Replacement Procedure

This publication details the step-by-step procedure for replacing the wiper blade on 4690 series turbidity sensors, including isolating power, removing the wiper module, installing a new blade, and restoring operation. It is intended for trained technicians and references the required replacement kit (part number 7998 023) and the user guide for manual clean cycle initiation.