Metrohm 726 Titroprocessor - Manual (Page 97)

6. Sample data and sample silo
726 Titroprocessor, Instructions for use 91 91
6 Sample data and sample silo
A data record can be entered for each sample. This data record contains:
• Sample identifiers (Ident1, Ident2, Ident3)
• Sample weight and units
• Comment line
For identification simple descriptive texts or numerical values can be used;
the numerical values can be used in calculations (system variables ID1,
ID2, ID3). The names and the type of field (text, numerical, auto) can be
altered to suit your requirements, see page 96.
The comments line can be used for clearly specifying a sample and can be
used for the creation of automatic file comments (see page 34f).
The sample weight is normally used for calculations (system variable SS). It
can be entered manually or from a balance via the RS232 interface(s) even
while a determination is taking place. It is additionally possible to enter all
sample data with a barcode reader.
6.1 Sample data entry
There are several different ways of entering sample data:
For single determinations (Silo ‘off’)
• Manual input in sample data section of the main page of the
Titroprocessor.
• Manual input in the dialog window ‘Current sample’, with the
key on the keyboard.
• Manual input with the command ‘ASK‘ during a determination run, see
page 206f.
• Automatic data input with data transfer from a balance.
With sample series (Silo ‘on’)
• Manual input in sample silo.
• Automatic data input in sample silo by data transfer from a balance.
6.1.1 Direct data transfer from balances
Most balances used in laboratories allow the sample weight (and units and
sample identification, depending on the model) to be transmitted directly to
the Titroprocessor via an RS232 interface. This receives the data in a special
data buffer and interprets the transmitted data according to the balance
type set.
In this way it is possible to enter the sample data at any time (even while a
determination run is being carried out) correctly in the current sample data
record or in the sample silo.