Metrohm 823 Membrane Pump Unit - Manual (Page 14)

2.1 Mode of operation of the membrane pump
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2 Overview of the instrument
1 2 3 4 5 6
Figure 1 Front 823 Membrane Pump Unit
1 Status LED
For displaying the operating state. 2 Inlet connector
With union nut for the aspiration tubing.
3 Membrane pump
With arrows to indicate the flow direction. 4 Pressurizing valve
5 Outlet connector
With union nut for the drainage tubing. 6 Connection cable
With M8 plug for connection to a Sample
Processor.
2.1 Mode of operation of the membrane pump
Figure 2 Mode of operation of the membrane pump
1 Outlet valve 2 Inlet valve