6 Maintenance and Troubleshooting6.1 pH (ORP) electrode maintenanceD-52/53/54/55 1396 Maintenance and TroubleshootingThis chapter explains how to perform daily metermaintenance and how to deal with error messages.Daily maintenance is vital in assuring accurate measurementand preventing breakdowns before they occur. Maintenance ofthe electrodes is especially important; if ignored, variousproblems and erroneous measurements may result. Thismeter is equipped with a convenient error message function. Ifan error message is displayed, be sure to takeappropriate action.6.1 pH (ORP) electrode maintenanceMaintain your electrodes by referring to the followinginformation or to the operation manuals for theelectrodes.The following explanation is for pH electrodes (9621-10D) ORP electrodes should be cared for in the samemanner.Maintenance after daily useAfter taking measurements, wash the electrode usingpure water (de-ionized water), wipe off the water fromthe electrode with filter paper or tissue paper, and store itwith its cap on.Injury warningGlass fragments can cause injury.The outer tube of the electrode and thetip of the electrode are made of glass.Use care not to break them.Caution
