pH 7110 - Fagerberg

pH 7110What to do if...Cause• The used buffer solutions do notagree with the set buffer setRemedy• Set different buffer setor• Use different buffer solutions• Buffer solutions too old • Use only once.Note the shelf life• Buffer solutions depleted • Change solutions10.1.3 Error message OFL, UFLThe measured value is outside the measuring range.The measured value is obviously incorrect.CauseRemedy• Cable broken • Replace the electrode• Gel electrolyte dried out • Replace the electrode• Air bubble in front of the junction • Remove the air bubble• Air in the junction • Extract air or moisten the junction10.2 ORPMore information and instructions on cleaning and exchange ofsensors are given in the documentation of your sensor.10.2.1 No stable measured valueCauseRemedy• Junction contaminated • Clean the junction• Pt-ORP electrode contaminated • Clean the Pt-ORP electrodeba75925e01 07/2011 39