Metrohm TitrIC 2 - Manual (Page 8)

Application Bulletin 286 e
Installation Instructions of TitrIC 2
Page 8/16
4.2 Installation of the 10 mL and 50 mL Dosing Units
M6: Port 2
Luer: Port 4
6.5620.000
6.1805.110
Port 3
Port 1 6.2744.080
6.2744.070
6.1803.020
6.1805.030
Connections on the bottoms of the 10 mL and 50 mL Dosing Units
Port 1 is used for emptying the Dosing Units into the waste canister.
Port 2 is used by the 50 mL and 10 mL Dosing Unit for taking in the sample via the titration
arm.
Port 3 is used for sample transfer to the IC system. The transition from M6 to the IC screw
size (1/16 in.) is achieved with the 6.2744.080 adapter.
Port 4 is used for the 50 mL and 10 mL Dosing Unit. This requires a coupling between Luer
and M6: The PEEK connection (6.5620.000) is attached to the Luer connection on the bottom
of the Dosing Unit. With the 50 mL Dosing Unit this port is used to realize «liquid handling» to
the external cell; in contrast with the 10 mL Dosing Unit it is used to aspirate the nitric acid for
acidification.
Once the tubing connections have been made, the Dosing Units are attached to the Dosino holder
(6.2055.100) with the screw attachment and the distance ring of the Connecting Set for Dosing Unit
(6.5620.000).