Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 50)

3.8 Titrants
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PC Control / Touch Control
3.8 Titrants
This section describes how you can draw up a list of titrants used in the
system. These titrants can be used in intelligent type dosing units or
intelligent type exchange units or in so-called non-intelligent exchange
and dosing units. Intelligent exchange and dosing units have a
built-in data chip on which data about the reagent and the unit can
be stored. When the exchange or dosing unit is attached this data is
read out automatically by the control device (Titrando, USB Sample
Processor etc.) and entered in the list of titrants. You can also store
the titrant data for reagents which are used in non-intelligent exchange
or dosing units in the list of titrants.
The following reagent data is stored in the list of titrants:
• Titrant name
• Concentration with unit
• Comment
• Titer with unit
• Statistical information about last titer determination
• Period of validity for titer (with date for next titer determination)
• History of the last 10 titers
• Working life (with preparation date and expiry dare)
The following exchange or dosing unit data is also stored:
• Designation (name)
• Order number (is read out automatically in case of intelligent
exchange or dosing units)
• Serial number (is read out automatically in case of intelligent
exchange or dosing units)
• Cylinder volume (is read out automatically in case of intelligent
exchange or dosing units)
• Serial number of the cylinder (is read out automatically in case of
intelligent exchange or dosing units; however, must be re-entered if
the cylinder is changed)
• Length and diameter of the tubing and port occupancy of the
dosing unit
• Parameters for preparing the exchange or dosing unit
• Direction of rotation of the valve disk (dosing unit only)
• Time interval for carrying out a GLP test at regular intervals
Each titrant is identified in the system by an unambiguous titrant name.
Open the dialog System/Titrants.