Metrohm 754 Dialysis Unit - Manual (Page 17)

2 Installation
754 Dialysis Unit
14
26/27 26/27 29 29 30/31 30/31 32 32 44 55 32 32 29 29 23/33 23/33 88 28 28 28 28
Fig. 6: Installing pump tubings
44 Tubing cartridge 28 28 PEEK compression fitting
(6.2744.010)
55 Contact pressure lever 29 29 Coupling (6.2744.030)
88 Snap-action lever 30 30 Pump tubing (6.1826.040)
for conveying the sample
23 23 PEEK capillary (6.1831.050)
for conveying the acceptor
solution to valve B
31 31 Pump tubing (6.1826.030)
for conveying the acceptor solution
26 26 PTFE capillary (6.1803.030)
for feeding the sample in
32 32 Stopper on pump tubing
27 27 PTFE capillary (6.1803.030)
for feeding the acceptor solution
in
33 33 PTFE capillary (6.1803.050)
for conveying sample to dialysis cell
3 Tubing connections for sample
• Mount a PEEK compression fitting 28 28 (6.2744.010) on the
end of PTFE capillary tubing 33 33 (6.1803.050, L = 20 cm) and
screw this on to coupling 29 29 (6.2744.030) (see Fig. 6).
• Push coupling 29 29 on to the outlet end of the pump tubing 30 30
(see Fig. 6 and Fig. 8).
• Cut a piece of PTFE tubing (6.1803.030) to the desired length
for the suction tubing 27 27.
• Mount a PEEK compression fitting 28 28 (6.2744.010) on one
end of suction tubing 27 27 and screw this on to coupling 29 29
(see Fig. 6).
• Push coupling 29 29 on to the inlet end of the pump tubing 30 30
(see Fig. 6 and Fig. 8).
• Immerse the other end of suction tubing 27 27 in the sample
vessel and fix in place.