2787.4 Monthly maintenance ........................................................................................................................
2797.4.1 Check the flow restrictor .............................................................................................................
2817.4.2 Check the function of the pump flow restrictors ..............................................................
2827.5 Semiannual maintenance ................................................................................................................
2837.5.1 Clean the UV flow cell ..................................................................................................................
2867.5.2 Replace the pH electrode ............................................................................................................
2877.6 Maintenance when required ...........................................................................................................
2887.6.1 Clean the instrument externally ..............................................................................................
2897.6.2 Perform System CIP ......................................................................................................................
2977.6.3 Perform Column CIP .....................................................................................................................
3017.6.4 Clean built-in fraction collector ................................................................................................
3047.6.5 Clean Fraction collector F9-R ....................................................................................................
3057.6.6 Storage of the pH electrode ......................................................................................................
3077.6.7 Clean the pH electrode ................................................................................................................
3117.6.8 Regenerate dried out pH electrode ........................................................................................
3127.6.9 Clean pump head check valves ...............................................................................................
3157.6.10 Clean pump flow restrictors ......................................................................................................
3177.6.11 Wipe off excess oil from the pump head .............................................................................
3187.6.12 Clean the Conductivity flow cell ...............................................................................................
3207.7 Calibration procedures ......................................................................................................................
3217.7.1 Calibrate the pH monitor ............................................................................................................
3237.7.2 Calibrate the pressure monitors ..............................................................................................
3277.7.3 Calibrate the Conductivity Monitor ........................................................................................
3317.7.4 Calibrate the UV monitors ..........................................................................................................
3357.8 Replacement procedures ..................................................................................................................
3367.8.1 Replace tubing and connectors ...............................................................................................
3387.8.2 Replace the Mixer ..........................................................................................................................
3407.8.3 Replace the O-ring inside the Mixer .......................................................................................
3427.8.4 Replace the UV monitor U9-M flow cell ...............................................................................
3457.8.5 Replace UV monitor U9-L flow cell .........................................................................................
3477.8.6 Replace Flow restrictor ................................................................................................................
3487.8.7 Replace the inlet filters ................................................................................................................
3497.8.8 Replace pump head check valves ..........................................................................................
3527.8.9 Replace pump rinsing system tubing ....................................................................................
3547.8.10 Replace a valve module ..............................................................................................................
3577.8.11 Replace pump pistons, piston seals, O-rings and rinse membranes ......................
3588 Troubleshooting ...................................................................................................
3598.1 Introduction to troubleshooting .....................................................................................................
3618.2 Troubleshooting: General Checklist .............................................................................................
3638.3 Troubleshooting: Monitors ................................................................................................................
3818.4 Troubleshooting: Valves .....................................................................................................................
3848.5 Troubleshooting: Fraction collector .............................................................................................
3978.6 Troubleshooting: Pumps ....................................................................................................................
4048.7 Troubleshooting: Other components ..........................................................................................
4138.8 Troubleshooting: Instrument communication ........................................................................
4158.9 Error codes ...............................................................................................................................................
ÄKTA avant User Manual 29035184 AE 5
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