Metrohm 940 Professional IC Vario ONE/LPG - Manual (Page 6)

Table of contents
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IV ￭￭￭￭￭￭￭￭
940 Professional IC Vario ONE/LPG (2.940.1150)
3.15 Low-pressure gradient ....................................................... 33
3.16 Installing the low-pressure gradient ................................. 35
3.17 Connecting the instrument to a computer ....................... 36
3.18 Connecting the instrument to the power supply ............. 37
3.19 Initial start-up ..................................................................... 38
3.20 Connecting and rinsing the guard column ....................... 41
3.21 Connecting the separation column ................................... 43
3.22 Conditioning ........................................................................ 46
4 Operation 48
5 Operation and maintenance 49
5.1 IC system ............................................................................. 49
5.1.1 Operation .............................................................................. 49
5.1.2 Care ...................................................................................... 49
5.1.3 Maintenance by Metrohm Service .......................................... 49
5.1.4 Shutting down and starting back up ...................................... 50
5.2 Capillary connections ......................................................... 51
5.3 Servicing the door .............................................................. 51
5.4 Column thermostat – Replacing the capillaries ............... 51
5.5 Handling the eluent ............................................................ 53
5.5.1 Manufacturing eluent ............................................................ 53
5.5.2 Changing the eluent .............................................................. 54
5.6 Servicing the eluent degasser ........................................... 54
5.7 Notes on operating the high-pressure pump ................... 55
5.8 Servicing the high-pressure pump .................................... 56
5.9 Servicing the inline filter .................................................... 69
5.10 Servicing the pulsation absorber ...................................... 72
5.11 Injection valve ..................................................................... 72
5.12 Servicing the detector ........................................................ 72
5.13 Rinsing the sample path .................................................... 72
5.14 Separation column ............................................................. 74
5.14.1
Separating efficiency .............................................................. 74
5.14.2 Protecting the separation column .......................................... 74
5.14.3 Storing the separation column ............................................... 74
5.14.4 Regenerating the separation column ...................................... 74
5.15 Quality Management and qualification with
Metrohm ............................................................................. 75