Differential Weighing - Sartorius Factory Series Operating Instructions Manual

Differential Weighing

Purpose
This application program enables you
to compare samples before and after
a given treatment (such as drying or
ashing) and determine the difference
in weight.
There are different procedures
available for this application:
– Collect all data (tare, initial weight,
and backweighing result) for each
sample individually (menu setting
"Weighing sequence: Individual
weighing")
– Save the tare weights and initial
weights for all samples first, then
perform backweighing (menu
setting "Combined weighing")
– Save the tare weights for all
samples first, then determine the
initial weight of each sample and,
finally, perform backweighing
(serial weighing)
Features
– 4 different sequences for
measuring the tare weights, initial
sample weights and the
backweights (backweighing result):
– Individual weighing
– Consecutive individual weighing
– Combined weighing
– Serial weighing
– Choice of weighing sequence by
selecting this parameter in the Setup
menu or by pressing the
Wg.seq
soft key (if the "Weighing sequence
key" option is set)
– Perform up to 99 backweighing
routines on a single sample
– Differential weighing with or
without tare weighing (not
necessary for measuring coatings
or lamination layers)
– Define the number of decimal
places displayed for calculated
results
– Define whether autosaving weight
values is dependent on the stability
parameter
– Define whether the minimum load
for autosave is dependent on the
display
– List function, with
Display page for lots:
Lists all lots (up to 100 max.) with
the number of samples in each lot
and the processing status (tare
weight, initial weight, backweighed
residue ("backweight")
View, create, rename or delete lots
generated
Enter or change a factor for calcu-
lation of results
Display page for samples:
Lists all samples (up to 999 max.)
with processing status
View, delete, omit, or include
samples
Display page for measured values:
Shows date, time, ID and values
measured
Operating the Scale
Display page for results:
Values calculated for a sample
(backweight, loss, ratio1, ratio2)
– Special display page for statistics
lets you define whether lot statistics
are dependent on backweight,
loss, or ratio values
– Press a soft key to view the desired
display page (lots, samples, values
or results)
– To view lot, sample or measured
value data, enter the ID and then
press the corresponding soft key
(
Lot/Sample/Values
– Define whether printer output is
dependent on the processing status
of the sample
– Printout can contain individual
values, backweighed values and
statistics
– User-definable printout format
– The configurations for the weighing
sequence and results are saved
separately for each lot
)
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