Metrohm 859 Titrotherm - Manual (Page 11)

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 Introduction
859 Titrotherm ￭￭￭￭￭￭￭￭ 3
1.2 Instrument description
The 859 Titrotherm has the following characteristics:
￭ Operation
Operation is carried out using the high-performance PC software
tiamo™, Version 2.2 or higher.
￭ MSB connectors
Four MSB connectors (Metrohm Serial Bus) to control dosing devices
(Dosimat with exchange unit or Dosino with dosing unit), stirrer or
titration stand and Remote Boxes.
￭ USB connectors
Two USB connectors, through which devices such as printers, PC key-
boards, barcode readers or additional control devices (USB Sample Pro-
cessor, Titrando, Dosing Interface, etc.) can be connected.
￭ Measuring interface
Measuring interface with two connectors for two temperature sensors
(Thermoprobes).
1.2.1 Titration modes, dosing commands and other commands
￭ TET
Thermometric endpoint titration. The reagent addition takes place con-
tinuously at a constant dosing rate.
￭ Dosing commands
The following commands for dosing can be selected:
– ADD (adding a predefined volume)
– PREP (rinsing the cylinder and tubings of an exchange or dosing
unit)
– EMPTY (for emptying cylinder and tubings)
– LQH (for executing complex dosing tasks)
￭ Other commands
– STIR (stirrer control)
– SCAN (scanning remote signals)
– CTRL (setting remote signals)
1.2.2 Intended use
The 859 Titrotherm is designed for usage as a titrator in analytical labora-
tories. Its main area of application is the determination of ions in aqueous
and nonaqueous media. The 859 Titrotherm uses the method of thermo-
metric titration.
This instrument is suitable for processing chemicals and flammable sam-
ples. The usage of the 859 Titrotherm therefore requires that the user has
basic knowledge and experience in the handling of toxic and caustic sub-