Emerson 396PVP instruction manual Cleaning Platinum Electrode

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396P + 396PVP Sensors Instruction Manual

Section 5: Maintenance

LIQ_MAN_396P_396PVP

August 2013

 

 

ammonium sulfate) will produce a nominal ORP of 476 +20 mV at 25°C when used with a satu- rated KCl/AgCl reference electrode and platinum measuring electrode. Some tolerance in mV values is to be expected due to the rather large liquid reference junction potentials which can arise when measuring this strongly acidic and concentrated solution. However, if the measuring electrodes are kept clean and in good operating condition, consistently repeatable calibrations can be carried out using this standard solution.

5.4.2Cleaning Platinum Electrode

The electrode can be restored to normal operation by simply cleaning the platinum electrode with baking soda. Polish it by rubbing it with a damp paper towel and baking soda until a bright, shiny appearance is attained.

Maintenance

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Contents TUpH Combination pH/ORP Sensors This page left blank intentionally Essential Instructions About This Document Contents Table of Contents Features and Applications Description and SpecificationsDescription and Specifications Available pH Accuglass Types Gplr hemi or flat glass Specifications GeneralPercent Linearity Ordering InformationExamples of all sensing tip offerings Extension Cables required when using a remote junction box AccessoriesInstallation Unpacking and InspectionMounting Flow Through and Insertion Mounting InstallationFlow-Through Tee with Adapter PN 40396P02 40396P03 Spray Wash Assembly PN General WiringWiring for 396P-01 Gray Cable WiringWiring for 396PVP Gray Cable and 54e pH/ORP Wiring for 396PVP 11. Wiring for Dual 396P-02 13. Wiring for 396P-01 Gray Cable and 1056/56 17. Wiring for 396PVP Gray Cable 20. Wiring for 396P-01 Gray Cable 3Wiring 27. Wiring for 396P-01 Blue Cable 29. Wiring for 396P-02 Blue Cable 31. Wiring for 396PVP Blue Cable 33. Wiring for 396P-01 Gray Cable and 5081-P-HT 37. Wiring for 396PVP Gray Cable and 5081-P-HT 41. Wiring for 396P-01 Gray Cable 43. Wiring for 396P-02 Gray Cable 45. Wiring for 396PVP Gray Cable 47. Wiring for 396P-01 Gray Cable and Xmt 51. Wiring for 396PVP Gray Cable and Xmt Wiring Wiring This page left blank intentionally 396P and 396PVP pH Sensors Start-Up and CalibrationStart-Up & Calibration 396P and 396PVP ORP SensorsAutomatic Temperature Compensator MaintenanceGeneral Information 396P & 396PVP pH Sensors396P and 396PVP ORP MaintenanceCleaning Platinum Electrode This page left blank intentionally Troubleshooting with Advanced Diagnostics Diagnostics and TroubleshootingDiagnostics & Troubleshooting Troubleshooting without Advanced DiagnosticsDescription Diagnostics & Troubleshooting Warranty This page left blank intentionally Warranty Repair Non-Warranty RepairReturn of Material Emerson Process Management