Metrohm 766 IC Sample Processor User Manual
Page 21
2 Installation
766 IC Sample Processor
16
2.3.8
Tubing connections 766 – 733
For transferring the sample from the 766 IC Sample Processor to the
injection valve of the 733 IC Separation Center the following tubing
connections must be made:
Pump tubings are consumable material with a lifetime which depends
on the contact pressure (see section 6.3.3). This is why the tubing
cartridges should be raised completely by loosening snap-action lever
17
17 on the right-hand side if the pump is to remain switched off for a
considerable length of time (the set contact pressure remains un-
changed).
The 6.1826.0X0 pump tubing is made of PVC and must not be used
for rinsing with solutions which contain acetone. In such cases, rinse
with different pump tubing or a different pump.
1 Install pump tubing
•
Release tubing cartridge 13
13 from holding clamp 16
16 by
pressing down snap-action lever 17
17 and remove from
mounting pin 12
12 on the 766 IC Sample Processor (see Fig.
1).
•
Press contact pressure lever 15
15 on the tubing cartridge down
as far as it will go.
•
Insert pump tubing 10
10 in the tubing cartridge 13
13 as shown in
Fig. 9. The black-black stopper 36
36 must click into the corre-
sponding holder on the left-hand side of the tubing cartridge.
•
Place the tubing cartridge 13
13 on mounting pin 12
12 and press
down on the right-hand side until snap-action lever 17
17 clicks
into position on holding clamp 16
16. Take care that no kinks are
formed in the pump tubing.
2 Connection needle – pump tubing
•
Mount the PEEK compression fitting 66 on one end of the
PEEK capillary 88 and the PEEK compression fitting 34
34 on the
other end.
•
Screw the PEEK capillary 88 with the PEEK compression fitting
66 on to the PEEK compression fitting 55 already mounted on
needle holder 44 (see Fig. 6).
•
Insert PEEK capillary 88 into the guide chain 99 (see Fig. 1 and
section 2.3.8).
•
Screw a coupling 35
35 on to the PEEK compression fitting 34
34 at
the other end of PEEK capillary 88.
•
Push coupling 35
35 on to the inlet end of the pump tubing 10
10
(see Fig. 6).