Figure 22, Inserting a peek capillary into the measuring head – Metrohm 894 Professional CVS User Manual

Page 40

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3.3 Establishing the tubing connections

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894 Professional CVS

1-2 mm

1

2

Figure 22

Inserting a PEEK capillary into the measuring head

1 Feed the capillary through the opening (5-28) of the measuring head

insert.

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 threaded opening SMP (4-5) of the mea-

suring head connector plate until it stops.

4 Only then start turning the pressure screw, while holding the capillary

firmly in place.

5 Cut the capillary to the desired length using the capillary cutter.

In order to prevent diffusion between the solution in the capillary
and the solution in the measuring vessel, make sure that the end of
the capillary is positioned above the measuring solution.

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