Metrohm 746 VA Trace Analyzer User Manual
Page 231
5.5 Operation
746 VA Trace Analyzer / 747 VA Stand
5-80
Parameter
Range; Default value / Meaning
Ident.1/S1
12 characters;
Sample identification 1 / Variable S1
This column can be used for optional entry of either the alphanumeric
sample identification 1 or the numeric variable S1. The following rules
hold for the entry:
•
If the first character is not a number, the entire entry is interpreted
as alphanumeric sample identification 1 (e.g.
Sample 456
,
B-56-
234-199
).
•
If the first character is a number or a period (point), the entire
entry is interpreted as numeric variable S1 (e.g.
125.849
,
4.629e-
08
). Subsequent entry of letters or special characters is no longer
possible. If you wish to enter a sample identification starting with
a number, you must thus precede the number by a non-numeric
character (e.g.
#
).
The sample-specific variable
S1
can be used in formulae (see section
5.6.4).
Ident.2/S2
12 characters;
Sample identification 2 / Variable S2
This column can be used for optional entry of either the alphanumeric
sample identification 2 or the numeric variable S2. The same rules as
for
Ident.1/S1
apply to the entry.
If the sample size
Sample size/S0
is entered as a weight,
S2
must
be entered as a density in g/mL (without manual entry the default
value
1.000
is automatically entered).
The sample-specific variable
S2
can be used in formulae (see section
5.6.4). If
S2
has been entered as a density in g/mL, this numeric value
must be multiplied by the factor 1000 in formula calculations as all
other variables are based on the base units g or L.
Ident.3/S3
12 characters;
Sample identification 3 / Variable S3
This column can be used for optional entry of either the alphanumeric
sample identification 3 or the numeric variable S3. The same rules as
for
Ident.1/S1
apply to the entry.
The sample-specific variable
S3
can be used in formulae (see section
5.6.4).
Method.call
11 characters;
Method call
For automatic call-up of a method, method name, stand number and
program run mode can be entered here. The entry must have the
following format:
xxxxxxxx.SR
xxxxxxxx
=
Method name
S
=
Stand address (
1...3
)
R
=
Run mode (
C,D,T
)
(
Calibration/Determination/
Test
)
With this entry, all methods loaded in the method memory are dis-
played in the softkeys and can thus be taken over directly.