Metrohm 858 Professional Sample Processor - Manual (Page 40)

3.12 Installing the peristaltic pump ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
32 ￭￭￭￭￭￭￭￭ 858 Professional Sample Processor
Figure 32 Inserting the tubing cartridge
6 Connect the capillaries
￭ Screw the respective capillaries tightly to the two tubing olives
with PEEK pressure screws (31-1).
Setting the flow rate
The contact pressure of the tubing cartridge must be adjusted in order to
regulate the flow rate. Proceed as follows:
1 Set the contact pressure
￭ Press the contact pressure lever (31-5) all the way forward.
￭ Switch on the drive of the peristaltic pump.
￭ Then release the contact pressure lever gradually until the liquid is
suctioned for the first time.
￭ Now release the contact pressure lever by two latch positions.
The contact pressure is now set optimally.