3.3 Fitting the accessories
32
Metrohm 838 Advanced Sample Processor
,
Installation
Use only the specified
6.2744.000 PVDF pressure screws
to con-
nect to the
dialysis cell. If the 6.2744.010 PEEK pressure screws are
used, this could cause stress cracking on the dialysis cell!
4 Connecting the injection valve
Screw the free end of the 6.1831.050 PEEK capillary
76
(L =
40 cm) with a 6.2744.010 PEEK pressure screw to connec-
tion "1" of the injection valve A
71
.
Screw the 6.1831.060 PEEK capillary
77
(L =1 m) using a
6.2744.010 PEEK pressure screw to connection "2" of the in-
jection valve A
71
and guide the other end of the capillary
through one of the openings at the front or at the side of the
820 Separation Centre to the outside. Attach the other end of
the PEEK capillary
77
with a 6.2744.010 PEEK pressure
screw to the PEEK coupling on the aspiration end of the
or-
ange-yellow
pump tubing of
channel 2
of the
833
Pump
Unit
(see
Chapter 3.3.9
and
Figure 22
).
5 Connecting the waste container
Attach the 6.1803.040 PTFE capillary
78
(L =1 m) with a
6.2744.010 PEEK pressure screw to the 6.2744.034 PEEK
coupling on the delivery end of the
orange-yellow
pump tub-
ing of
channel 2
of the
833
Pump Unit
(see
Chapter 3.3.9
and
Figure 22
). Insert the other end of the capillary into an
adequately large waste container and secure it there.
