Metrohm 761 Compact IC - Manual (Page 38)

2 Installation
761 Compact IC
28
3 Mount CO
2
absorber tube
• First place a piece of cotton wool 70 followed by CO
2
ab-
sorber 69 (e.g. Merck soda-lime pellets with indicator, no.
6839.1000) in the large opening of absorber tube 72 and then
close it with the plastic lid.
• Fasten absorber tube 72 to bottle attachment 66 with the aid
of SGJ clip 71.
4 Connect aspirating tubing to pump
• Insert the free end of aspirating tubing 63 into one of the
openings 12 in the interior of the 761 Compact IC (see Fig. 2).
• Pull aspirating tubing 63 sufficiently far into the interior of the
761 Compact IC, cut off to the required length and push at
least 5 mm of it onto aspirating capillary 40 (see Fig. 3 and
Fig. 4) of the high-pressure pump (it may be necessary to use
emery paper).
• If necessary, fix aspirating tubing 63 in the required position
in the interior with the aid of the Y.107.0150 self-adhesive
strap.
Instead of threaded stopper 65 , the 4.420.0311 Tubing nipple (M6)
which belongs to the 6.1602.160 Bottle attachment accessories can
be used together with the included second E.301.0021 O-ring for
recycling operation (see section 5.2.3), in which the outlet capillary
from the detector block is led back into eluent bottle 67 .
63
64
65
66
72
68
71
70
69
67
Fig. 11: Connection of eluent bottle
63 Aspirating tubing (6.1834.010)
64 Tubing nipple (4.420.4300; M8)
with E.301.0021 O-ring
65 Threaded stopper (6.1446.040; M6)
66 Bottle attachment (6.1602.105)
67 Eluent bottle (6.1608.070)
68 Aspirating filter (6.2821.090)
69 CO
2
absorber
70 Cotton wool
71 SGJ clip (6.2023.020)
72 Absorber tube (6.1609.000)