Metrohm TitrIC 1 - Manual (Page 11)

Application Bulletin 285 e
Installation Instructions of TitrIC 1
Page 11/16
5 Miscellaneous
5.1 Stirrer
The 802 Rod Stirrer is inserted through opening 9 of the external cell (see page 7) and connected to the
tower of the 815. The propeller (6.1909.020) is pushed on from below. Connect the stirrer to the
connector at the left of membrane pump 2 of the 815.
5.2 Length of the aspiration tips in the external cell
Clamp the titration vessel (6.1415.220) to the titration vessel lid (6.1414.060).
The M8 aspiration tip in opening 1 must reach right to the base of the titration vessel as this is
the only way to ensure that the external cell is cleaned properly.
The buret tips of the 3-way stopper in opening 6 and the buret tip of opening 3 should reach the
middle of the titration vessel. The three tubings of the 3-way stopper have to be mounted with
Antidiffusion micro valves to ensure a precise titration.
5.3 Electrodes
The pH electrode (Aquatrode Plus with Pt 1000; 6.0257.000) is inserted into opening 4 together
with the SGJ sleeve (6.1236.050). The cable is connected to the 809 Titrando at Input 2 . The
plug of the gray cable is connected to the opening marked Ind. . The red plugs with the adapters
6.2103.140 and 6.2103.130 are inserted in the openings marked Temp.
If the electrode is not to be used for some time then it should be returned to its holder and kept
in the storage solution (6.2323.000).
The Ca-ISE (Polymer membrane electrode Ca, 6.0508.110) is connected to the electrode cable
(6.2104.020) and inserted into opening 8. The cable is connected to the 809 Titrando at Input 1 .
The plug of the gray cable is connected to the opening marked Ind. . The red plugs with the
adapters 6.2103.140 and 6.2103.130 are inserted in the openings marked Temp. .
To have a reference electrode for the Ca-ISE one can short-circuit the reference channel of the
Ca-ISE with the one of the Auquatrode. Thereto connect
Ref. of Input 1 with Ref. of Input 2 with the
electrode cable 2x plug B (6.2106.020).
Conductivity cell (6.0912.110): The measuring cell cable is led through the guide chain of the
815 and the two black plugs are inserted into the openings marked Cond. Cell of 712
Conductometer, the two red plugs into those marked Pt 100/1000 . Later (as soon as the titration
head has been mounted) the measuring cell with the SGJ sleeve (6.1236.050) will be inserted
in the SGJ 14 opening of the titration head.