BUCHI SpeedExtractor E-916 - Manual (Page 4)

Table of contents
4 SpeedExtractor E-916/E-914 Operation Manual, Version D
6 Operation ..............................................................................................................................37
6.1 Method development ....................................................................................................37
6.2 Preparing the instrument ...............................................................................................38
6.2.1 Solvent reservoir .................................................................................................38
6.2.2 Modifying the SOLVENT LIST ..............................................................................39
6.2.3 Preheating the instrument ...................................................................................40
6.2.4 Activating/deactivating positions .........................................................................41
6.2.5 Leak test .............................................................................................................42
6.2.6 Flushing the instrument .......................................................................................45
6.2.7 Activating the EcoMode ......................................................................................46
6.3 Preparing the sample ....................................................................................................47
6.3.1 Sample preparation .............................................................................................47
6.3.2 Extraction cell selection .......................................................................................48
6.3.3 Packing of the cells .............................................................................................48
6.4 Extraction process ........................................................................................................51
6.4.1 Placing the cells and bottles/vials into the instrument ..........................................51
6.4.2 Stages of an extraction cycle ..............................................................................52
6.4.3 Creating new methods ........................................................................................53
6.4.4 Summary of operating parameters ......................................................................56
6.4.5 Example of an extraction method ........................................................................58
6.4.6 Open an existing method ....................................................................................58
6.4.7 Optimize a process .............................................................................................59
6.4.8 Start, pause, stop and abort extraction ...............................................................60
6.4.9 Post-extraction procedures .................................................................................60
6.5 Creating a report (optional) ............................................................................................61
7 Maintenance ........................................................................................................................ 63
7.1 Daily maintenance .........................................................................................................63
7.2 Periodic maintenance ....................................................................................................64
7.2.1 Sealing system ....................................................................................................64
7.2.2 Replacing the cup seals ......................................................................................64
7.2.3 Tube connections and needles ............................................................................65
7.2.4 Septum ...............................................................................................................67
7.3 Pump maintenance .......................................................................................................68
7.3.1 Connections .......................................................................................................68
7.3.2 Back washing .....................................................................................................69
8 Troubleshooting ...................................................................................................................71
8.1 Malfunctions and their remedy.......................................................................................71
8.1.1 Action in case of a fire .........................................................................................71
8.1.2 General malfunctions and their remedy ...............................................................71
8.1.3 Handling and resolving blockages .......................................................................76
8.1.4 The pump is not aspirating properly ....................................................................81
8.1.5 Replacement of check valves ..............................................................................82
8.1.6 Precipitation in the outlet lines .............................................................................83
8.1.7 Malfunctions of the rotating valves ......................................................................84
8.1.8 Upgrading a 2-port mixer to a 4-port mixer .........................................................84