Metrohm 930 Compact IC Flex Oven/ChS/PP/Deg - Manual (Page 48)

3.13 Peristaltic pump
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930 Compact IC Flex Oven/ChS/PP/Deg (2.930.2360)
￭ Install the pump tubing connection with safety device and filter
(6.2744.180) at the pump tubing outlet:
– Push the locknut onto the pump tubing.
– Push the appropriate adapter onto the pump tubing.
– Place the tubing olive with the filter holder into the pump
tubing so that the pump tubing is firmly in place; push the
end of the pump tubing over at least the second notch of
the olive.
– Tighten it using the union nut.
2 Removing the tubing cartridge
￭ Press in the tubing cartridge's snap-action lever.
￭ Tilt the tubing cartridge upwards.
￭ Unhook the tubing cartridge from the mounting bolt.
3 Inserting the pump tubing
￭ Press the tubing cartridge's contact pressure lever down all the
way.
￭ Place the pump tubing in the tubing cartridge. Fit the tubing car-
tridge between two stoppers. The stoppers must snap into the
corresponding holder of the tubing cartridge.
4 Inserting the tubing cartridge
￭ Hang the tubing cartridge in the mounting bolt and press it in the
cartridge holder until you hear the snap-action lever snap in.
Setting the flow rate
The flow rate of the peristaltic pump depends on many factors:
￭ The inner diameter of the pump tubing
￭ The rotational speed of the drive
￭ The contact pressure of the tubing cartridge
NOTE
Pieces of pump tubing are consumables. The lifetime of the pump tub-
ing depends on the contact pressure, among other factors.