YSI Model 52 Operation Manual

YSI Model 52 Operation Manual Manual pdf 31 page image

Maintenance and Troubleshooting Section 8YSI, Incorporated Model 52 27CODE ERROR CAUSE CORRECTIONE. 0 System error Defective ROM Return for serviceE.00 Lost calibration Defective RAM backup Return for servicevalue batteryE.01 Defective RAM Defective RAM Return for serviceE .1 Open circuit in Connector improperly Check connectionTemp probe installedIntermittent connection Repair or replacein cable or plugFaulty temperature sensor Repair or replaceE .2 High background Insufficient warm-up time See Preparation for UseIncorrect probe zeroing See Zero CalibrationprocedureProbe needs servicing See probe instructionsProbe malfunction Repair or replaceE .3 Low Insufficient electrolyte See probe instructionssensitivityContaminated electrodes See probe instructionsor fouled membraneMembrane too thick Try another membraneHigh resistance in probe Return for evaluationconnectionE .4 Output too high Membrane too thin Try another membraneShort circuit Repair or replaceElectrodes need Repair or replaceresurfacingInternal leakage in probe Repair or replaceor cable connectorM.XX Incorrect Mode Switch or circuit defect Return for service(x may be anydigit or any letter)