Metrohm 894 Professional CVS - Manual (Page 25)

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
2 Overview of the instrument
894 Professional CVS
￭￭￭￭￭￭￭￭ 15
20 Opening for electrode
For inserting the reference electrode (RE).
21 Opening for electrode
For inserting the driving axle for the RDE
(working electrode - WE).
22 Pipetting opening
For manually dosing solutions. Is closed with
a 6.2709.100 stopper (3-
5 ).
23 Opening for electrode
For inserting the auxiliary electrode (AE).
24 Opening
For adding or aspirating solutions. Can be
connected with the threaded opening 1, 2,
3 or WASTE (FEP tubing from 6.1829.070).
25 Opening
For adding or aspirating solutions. Can be
connected with the threaded opening 1, 2,
3 or WASTE (FEP tubing from 6.1829.070).
26 Opening
For adding or aspirating solutions. Can be
connected with the threaded opening 1, 2,
3 or WASTE (FEP tubing from 6.1829.070).
27 Opening
For adding or aspirating solutions. Can be
connected with the threaded opening 1, 2,
3 or WASTE (FEP tubing from 6.1829.070).
28 Opening
For the automatic sample addition. Must be
connected to the threaded opening 5 (SMP)
(PEEK capillary 6.1831.020).
29 Opening for sensor
For inserting a temperature sensor (Pt1000).
30 Opening
For feeding through the temperature sensor
cables from above.
2.5 Tubing connection port (measuring head arm)
1
2
3 4 5
6 7
Figure 6 Tubing connection port (measuring head arm)
1 Nipple (N
2
)
Is connected to the threaded openings TAP,
PURGE and N
2
via the measuring head arm.
Not relevant for CVS analyses.
2 Threaded opening M6 (3)
For connecting tubing for aspirating or add-
ing solutions.