Metrohm 820 IC Separation Center - Manual (Page 36)

2 Installation
819 IC Detector / 820 IC Separation Center
28
2.6 Capillary connections
Some of the connections under high pressure between the feed pump
and the detector block must be set up by the user. For that the
6.1831.010 PEEK capillary (i.d. = 0.25 mm, o.d. = 1 /
16
" ,
length = 3 m) and the 6.2744.010 Compression fittings supplied in
the accessories of the 820 IC Separation Center can be used. These
capillaries can be used in the pressure range from 0 … 30 MPa
(0 … 300 bar).
Capillaries fitted with new connectors must have a perfectly flat cut
surface. For PEEK capillaries it is best to use the 6.2621.080 Capil-
lary tubing cutter
Fig. 16: Connect capillaries
42 PEEK capillary6.1831.010 43 Compression fitting 6.2744.010
For the connection of 6.1831.010 PEEK capillaries or of the 6.1834.000
PTFE aspirating tubing, the supplied 6.2744.010 PEEK Compression
fittings are used. It is best to proceed as follows:
1 Mount compression fitting
Slide a compression fitting 43 (6.2744.010) over the end of the
capillary 42 to be fastened as shown in Fig. 16.
2 Insert capillary in connection
Push capillary end in the corresponding connection as far as it
will go (to avoid dead volume).
3 Tighten compression fitting
Tighten compression fitting 43 by hand (never use tools).
43 42