Operating instructions

66
Weighing in Percent L
When the Weighing in Percent
application is selected, you can use
your weighing platform to obtain
weight readouts in percent which are
in proportion to a reference weight.
L is displayed as the weight unit.
Features:
– Store reference weight from the value
on the weighing platform
– Enter the reference weight using a bar
code scanner
– Enter tare weight using a bar code
scanner
– Toggle the display between percentage
and weight by pressing w
– Show percentage as loss or residue
– Values displayed with up to 3 decimal
places
– Info mode
Factory settings:
– Minimum load for automatic taring and
automatic printing: 10 digits (3.5.4)
– Minimum load for automatic initializa-
tion: 1 digit (3.6.1)
– Automatic taring (first weight on
platform tared): Off (3.7.1)
– Application started automatically with
most recent initialization data when
Combics switched on: Off (manual start)
(3.8.2)
– Resolution for reference weight
calculation: Display resolution (3.9.1)
– Decimal places displayed for
percentage: None (3.10.1)
– Storage parameter: At stability (3.11.1)
– Reference platform: Off (3.13.1)
– Display calculated value as: Residue
(3.15.1)
– Reference percentage: 100
To determine the weight of a sample
relative to a reference weight, you
must enter the reference weight in the
weighing platform. There are 2 ways
to do this with the Combics weighing
platform:
– By placing the amount of reference
material on the weighing platform
specified by the reference percentage
and pressing O to calculate and
store it.
The reference percentage is shown in
the numeric display.
How the reference weight is calculated
depends on the resolution specified in
the Application settings (3.9). It is either
rounded off in accordance with the dis-
play resolution, or stored with 10-fold
or 100-fold resolution, or with the max-
imum internal resolution of the weigh-
ing platform. Press the r key to
change the reference weight; then con-
tinue as described above.
– By entering the reference weight (in this
example, the weight of 1 unit) using a
bar code scanner. In this case, the value
is stored automatically without pressing
O.
The value for the reference weight
remains active in the reference memory
until you overwrite it or until you select
a different application. It also remains
stored after you switch off the Combics.
Storage Parameter
The reference weight is stored when
the platform has stabilized. “Stability" is
defined as the point at which
fluctuation of a measured value lies
within a defined tolerance range. The
narrower the tolerance range, the more
stable the platform is at “stability".
This setting is also applied when you
zero the weighing platform.
You can set the parameter for “Stability
at initialization" to “At stability"
(normal tolerance range) or “At higher
stability" (limited tolerance range).
If you select “higher stability", the
reference weight stored will be
more accurate and the results more
reproducible, but the response time of
the weighing platform might be longer.