Operating instructions

Classification O cl
When the Classification application is
selected, you can determine whether
the weight of a given sample lies within
the limits of a defined weight class.
Features:
– Configure 3 or 5 classes
– Define contiguous classes
– Define classes that cover the entire
weighing range of the weighing
platform
– Range below the specified minimum
load is designated “Class 0"
– Define the upper limit of a given
class by storing weight on platform
or by entering a weight value and a
percentage
– Show the current weight in the
main display as a weight value or as
belonging to a certain class
– Current load additionally designated
in the display by 1 LED (when using 3
classes) or 2 LEDs (when using 5 classes)
– Toggle the display between weight
and class by pressing w.
– Digital I/O interface
– Info mode shows class delimiters
Factory settings:
– Minimum load for automatic taring and
automatic printing: 10 digits (3.5.4)
– Minimum load for setting the lower
limit of class 1: 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)
– Activate control line for “Set" as:
Set output (4.3.1)
– Control lines: Activate at stability (4.7.3)
– Number of classes: 3 (4.8.1)
– Parameter input: Weight values (4.9.1)
– Automatic printout of results: Off
(4.10.1)
– Default percentage: 10%
59
Operating the Combics 2
To use the Classification application,
you need to enter the delimiters that
separate one class from another.
– The lower limit of Class 1 is defined
by the preset minimum load. Weight
values below the minimum load are
classified as belonging to Class 0, in
part to prevent an unloaded weighing
platform from displaying a value that
designates a class.
There are two ways to enter the
delimiters for Classes 1 through 3
(or through 5):
– By storing the load on the platform:
Define each upper limit (except that
of the highest class), by placing a load
of the corresponding weight on the
weighing platform and pressing O.
The bar graph and the numeric
display show which limit is currently
being configured.
Each time you store a value for an
upper limit, the Combics checks whether
the value is equal to or greater than the
upper limit of the next lower class. If
the value is invalid, an acoustic signal
is sounded and the limit must be
entered again.
– By entering a percentage:
Define the upper limit of Class 1 by
placing the corresponding weight on
the platform and pressing O. This
value is equal to 100%.
The upper limit of Class 2 is equal to
100% plus the percentage you select
by pressing r and a number (1, 2, 5,
10, 15, 30, 50, 70, 100, 150, 199%).
Example: A load of 100 g is stored from
the weighing platform as the upper
limit of Class 1. The value 15%
is then entered, defining the upper
limit of Class 2 as 115 g.
In this case, the weight ranges when
working with 3 classes are:
Class 0: up to the minimum load
Class 1: Minimum load – 100 g
Class 2: 100 g – 115 g
Class 3: 115 g – maximum load
With 5 classes, the weight ranges are:
Class 0: up to the minimum load
Class 1: Minimum load – 100 g
Class 2: 100 g – 115 g
Class 3: 115 g – 130 g
Class 4: 130 g – 145 g
Class 5: 145 g – maximum load
Minimum Load
The minimum load at initialization is
configured in the Application settings
(3.5: minimum load for automatic
taring and automatic printing; 3.6:
minimum load for setting the lower
limit of Class 1). You can choose from
the following ten levels for this setting:
1 digit (no minimum load)
2 digits
5 digits
10 digits
20 digits
50 digits
100 digits
200 digits
500 digits
1000 digits
The “digits" here refer to the weighing
platform intervals in the connected
weighing platform. If the interval of the
connected platform is 1 g, for example,
and 1000 digits are required, you must
place at least 1000 g
(= 1000 intervals = 1000 digits) on the
weighing platform for initialization.
If the interval of the connected platform
is 5 g, you have to place at least 5000 g
on the platform for initialization to
achieve the number of digits required
in the above example.
You can increase the resolution for
determining the reference weight by
changing the Application settings
for resolution (3.9) to use display
resolution + 1 decimal place, display
resolution + 2 decimal places, or
internal resolution. With the setting
for “Display resolution + 1 (2) decimal
place(s)", the resolution of the net value
is increased by one or two decimal
places; “Internal resolution" uses the
maximum resolution available in the
weighing platform.
Once the limit is exceeded by the load,
initialization can begin. If the load on
platform is too light for initialization,
the following will occur when you try
to initialize the application:
– The error inf 29 is displayed.
– A warning signal (double-beep) is
emitted
– The weighing platform is not initialized