Metrohm 940 Professional IC Vario ONE/ChS/PP/LPG - Manual (Page 34)

4.13 Peristaltic pump
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940 Professional IC Vario ONE/ChS/PP/LPG (2.940.1350)
Connecting capillaries for rinsing solution (as an alternative
to STREAM)
Accessories For this step you need the following accessories:
￭ Aspiration capillary (6.1803.020)
￭ 2 × pressure screw, short (6.2744.070)
On the pump tubing's … … connect this accessory
Input Tighten the aspiration tubing (6.1803.020) to the tubing olive (6.2744.034)
using a pressure screw (6.2744.070).
Output Tighten the regenerant suppressor capillary to the pump tubing connec-
tion with safety device (6.2744.180) using a pressure screw (6.2744.070).
Next step ￭ Connect the loose end of the aspiration capillary to the bottle with the
rinsing solution.
Setting the contact pressure correctly
1 ￭ Fully loosen the contact pressure lever , i.e. press it all the way
down.
￭ Activate the peristaltic pump drive in the software.
￭ Raise the contact pressure lever one step at a time until liquid
flows.