Hanna Instruments HI 904 - Manual (Page 31)

2-9
SETUP
Figure 3
2.3.4.3 Titration Vessel
The titration takes place in a sealed titration vessel. The titration vessel can also be referred
to as a reaction vessel, titration cell or reaction cell.
The primary design features of the HI 904 titration vessel include the following:
• Durability, easy to use, clean and maintain.
• All glass cells are manufactured with ground-glass joints for ultra-low water vapor
permeability and high chemical resistivity to Karl Fischer reagents.
• A sample port with open-top screw cap for easy septum replacement.
• A desiccant cartridge containing molecular sieves to dry the ambient air which
enters the cell as reagent and sample are added/removed from the titration vessel.
• Electrode port for generators with and without diaphragm.
To attach the titration vessel, see Figure 3 and follow the steps below:
• Align the vessel support (D) with the base plate and attach by rotating clockwise.
• Insert the support adapter (C) onto the vessel support (D) while aligning the notches.
If the o-ring (B) is not installed, insert it into the inner groove of the support adapter (C).
• Lower titration vessel into the vessel support (D) by gently pushing it through the
support adapter (C).