Hach LXV321.99.00001 User Manual

Hach LXV321.99.00001 User Manual Manual pdf 31 page image

31Section 7 Troubleshooting7.1 Error messagesProblem/display screen Caused by ActionCommunication with probe The probe is not connected to theinstrument– Plug in the probe– Check the connection to the probe– Correct probe numberEEPROM error Values cannot be saved Switch the instrument off and then backon againOverflow area Concentration too high– Probe is measuring in an unsuitablemedium– It may be necessary to recalibrateClean the probe Probe is dirty– Clean the probe– May be triggered by inhomogeneousmeasuring mediumOffset errorCalibration point set incorrectly(calibration point too close to the zeropoint)Recalibration requiredCalibration errorNo calibration available, calibrationpoints set incorrectly (upper and lowercalibration points transposed)Recalibration required. (1-point defaultcalibration of DS curves not sufficientlyprecise for measuring medium)Calibration insufficient – Further calibration point with lowerconcentration is missingFurther calibration point with lowerconcentration is requiredCalibration insufficient + Further calibration point with greaterconcentration is missingFurther calibration point with greaterconcentration requiredProbe error Technical error in the probe– Switch the instrument off and thenback on again– If the message is repeated, send theprobe for repairBattery is empty Battery not charged Charge the battery fully 1Incorrect probeProbe has been replaced but notre-registered or correctly registered oninstrument– Connect the correct probe– Use code 390 to release DS curve fornew probe and recalibrateError time/date Time/date implausible– Switch the instrument off and thenback on again– Check the time/date set– If required, change the clockbatteries 21 The battery charger must agree with local and national safety regulations and may not be part of the shipment. If the charger isnot part of the shipment, charge the batteries with a charger available in your country. Make sure that the charger agrees thebattery specifications.2 If the message is repeated, send the instrument for repair7.2 Informative messagesDisplay Caused by Measure/noteWait Calibration is being recorded Wait (probe in calibration medium)Manufacturer standard Measurement value is outside thestandard (only for turbidity)Value is above the DIN standard of4000 FNU (NTU)