Manual
38
CORRECTIVE ACTION
•Checkbatteryconnectionsorreplacebattery. 
 (See Battery Replacement, pg. 32.)
•RecalibratepHfunction.(SeepHCalibration(D-6),pg.20.)
•Thoroughlyrinsesensorwell.
•Recalibrateusingfreshbuffers. 
 (See pH Calibration (D-6), pg. 20.)
•ReplacepH/ORPSensor. 
 (See pH/ORP Sensor Replacement (D-6), pg. 33.) 
•Cleanandrejuvenatesensor.(SeepH/ORP,pg.35.)
•Recalibrate.(SeepHCalibration(D-6),pg.20.)
•Ifnoimprovement,replacepH/ORPsensor. 
 (See pH/ORP Sensor Replacement (D-6), pg. 33.) 
•Cleanandrejuvenatesensor.(SeepH/ORP,pg.35.)
•Recalibrate.(SeepHCalibration(D-6),pg.20.)
•Ifnoimprovement,replacepH/ORPsensor. 
 (See pH/ORP Sensor Replacement (D-6), pg. 33.) 
•Cleancellcupandelectrodes.(SeeCleaningSensors,pg.34.)
•Minimizetestsampleexposuretoairbyusingaowingsample. 
Letsampleowcontinuouslyintoconductivitycellwithnoaeration.
•Cleancellcupandelectrodes.(SeeCleaningSensors,pg.34.)
•Minimizetestsampleexposuretoairbytakingaowingsample. 
Letsampleowcontinuouslyintoconductivitycellwithnoaeration.
•Cleancellcupandelectrodes.(SeeCleaningSensors,pg.34.)
•Rinsecellcupmorethoroughlybeforemeasurement.
•EnsurepHcapissnuglyinplace.
•Minimizetestsampleexposuretoairbytakingaowingsample. 
Letsampleowcontinuouslyintoconductivitycellwithnoaeration.










