Metrohm 752 Pump Unit - Manual (Page 15)

2 Installation
752 Pump Unit
12
16 16 17 17 18 18 19 19 44 55 19 19 17 17 90 90//93 93 77 20 20 20 20 16 16 20 20 22 22 23 23 20 20 21 21
Fig. 6: Installing pump tubings
44 Tubing cartridge 20 20 PEEK compression fitting
(6.2744.010)
55 Contact pressure lever 21 21 Connector (6.2824.110) with filter
77 Snap-action lever 22 22 Housing for 6.2824.100 Filter unit
PEEK
16 16 PTFE tubing (6.1803.020) 23 23 Connector
17 17 Coupling (6.2744.030) 90 90 Suppressor inlet capillary for
H
2
SO
4
18 18 Pump tubing (6.1826.050) 93 93 Suppressor inlet capillary for H
2
O
19 19 Stopper (white-yellow)
• Press contact pressure lever 55 on both tubing cartridges
down as far as it will go.
• Insert a length of pump tubing 18 18 (6.1826.050) into each of
the tubing cartridges as shown in Fig. 6. The white-yellow
stopper 19 19 must click into the corresponding holder on the
left-hand side of the tubing cartridge.
• Place the tubing cartridges on mounting pin 99 and press
down on the right-hand side until snap-action lever 77 clicks
into position on holding clamp 66. Take care that no kinks are
formed in the pump tubing.
8 Suppressor connection 2: H
2
SO
4
• Loosen rotary nipple screwed onto the interior side of con-
nection 27 27. Pull inlet capillary 90 90 marked with "H
2
SO
4
" (see
Fig. 17 of 732/733 Manual) by hand out of the opening of
connection 27 27 as far as required. Retighten nipple on the in-
terior side of connection 27 27 to fix inlet capillary 90 90.