￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
4 Installation
930 Compact IC Flex ChS/PP/Deg (2.930.1360)
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13
occurs if two capillary ends connected to each other do not fit exactly,
thus allowing liquid to escape. There are two possible causes for this:
￭ The capillary ends do not have exactly flat edges.
￭ The two capillary ends do not completely meet.
One prerequisite for dead-volume-free capillary connection is that both
capillary ends are cut exactly flat. Therefore we recommend cutting PEEK
capillaries only with a capillary cutter (6.2621.080).
Also see: Cutting capillaries video on the Internet http://ic-
help.metrohm.com.
Creating dead-volume-free capillary connections
To create dead-volume-free capillary connections, proceed as follows:
1
Wipe off the end of the capillary with a cloth dampened with ace-
tone.
2
Slide the pressure screw over the capillary. Ensure that the capillary
protrudes 1 to 2 mm from the tip of the pressure screw.
3
Push the capillary into the connection or coupling as far as it will go
and hold it there.
4
Only then start turning the pressure screw. Hold the capillary in the
stop position while turning it shut.
4.3 Removing transport locking screws
To avoid damage to the drives for the high-pressure pump and the vac-
uum pump during transport, the pumps are secured with transport locking
screws. These are located at the rear of the instrument and labeled with
Transport security screws.
Remove these transport locking screws before the initial start-up.
Accessories
For this step you need:
￭ 4 mm hex key (6.2621.030)
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