Metrohm TitrIC 6 - Manual (Page 9)

Application Bulletin 320 e
Installation Instructions of TitrIC 6
Page 9/16
4.3 Overview of all the tubing connections
The three 60 cm FEP-tubing connections (6.1850.060, supplied with 815) are used to connect
membrane pump 1 / tower 1 of the 815 and the three rinsing nozzles (6.2740.020, supplied with
815) to openings 2, 5 and 7 of the external cell (see page 7 and 11, chapter 5.1).
The 60 cm M8-PTFE-tubing connection (6.1805.510) is used to connect membrane pump 1 /
tower 2 of the 815 and the M8-PTFE-aspiration tip (6.1543.170) to opening 1 of the external cell
(see page 7 and 11, chapter 5.1).
The two buret tips (6.1543.080) are each attached by a stopper (6.2730.030) to the titration head
(6.1462.070).
The two 80-cm-FEP-tubing connections (6.1850.110) are used to connect the buret tips
(6.1543.200) at the titration head (6.1462.070) and port 2 of the 10 mL and 50 mL Dosing Units.
The 60-cm-FEP-tubing connection (6.1850.060) is used to connect port 4 of 50 mL Dosing Unit
and opening 9 of the external cell (see page 7).
The 40-cm-FEP-tubing connection (6.1850.100, supplied with 807) is used to connect port 4 of
the 10 mL Dosing Unit and the M6 opening of the eluent bottle attachment (6.1602.160); the FEP
aspiration tubing (6.1829.010, supplied with 807) should previously be inserted. The absorber
tube (6.1609.000) is filled as usual with lime and cotton wool and inserted into the opening
provided for it in the eluent bottle attachment in order to protect the nitric acid from CO
2
.
The 40-cm-FEP-tubing connection (6.1850.100, supplied with 807) is used to connect port 1 of
the 20 mL Dosing Unit and the buret tip in opening 3 of the external cell (see page 7).
The three 150-cm-FEP-tubing connections (6.1805.030) are connected to port 1 of the 10 mL
and the 50 mL Dosing Units, as well as port 3 of the 20 mL Dosing Unit; all three tubing
connections are then connected to the 10 L PE waste canister (6.1621.000).
Suitable lengths of the 0.97 mm PTFE capillary (6.1803.020, supplied with 850) are used to
connect port 3 of the 10 mL and the 50 mL Dosing Units (using the screws 6.2744.080 and
6.2744.070) and the injection valves of the 850 Professional IC instrument. The 10 mL Dosing
Unit must be connected to the valve for cations and the 50 mL Dosing Unit to the valve for
anions.