Metrohm 761 SD Compact IC - Manual (Page 43)

2.13 Deaerating the pump and rinsing the pulsation dampener
761 SD Compact IC / Instructions for Use 8. 761.1043
35
3 Open the control window
• Double-click on the 761 image in the System window. You will
see the window for manual operation of the 761 SD Compact
IC (see below).
4 Deaerate the pump
• Ensure that the "tubing connection to the eluent MPak" 23 is
connected to the eluent MPak.
• Click on the <On> button for IC pump to switch on the high-
pressure pump.
• Aspirate air with the syringe inserted in connection 6 until elu-
ent flows into the syringe.
• Click on the <Off> button for IC pump , to switch the high-
pressure pump back off.
• Close the rotary knob on the purge valve 26 by turning it
clockwise.
• Remove the syringe from the connection 6.
2.13.2 Rinsing the pulsation dampener
The pulsation dampener must be rinsed before using it for the first time
so as to remove the isopropanol which is located in the flow area of the
eluent on delivery.
The isopropanol should not be rinsed through the suppressor and the
detector. Consequently, the column connection capillary 33 (which is
currently connected to the suppressor via the PEEK coupling) must be
detached from the PEEK coupling and routed into a beaker.