Operating instructions

5
Average Piece Weight Updating
In Setup, under:
Application:
Counting: APW update
you can define whether or not the aver-
age piece weight is updated automati-
cally during weighing. The average
piece weight is updated automatically
only when the following 6 criteria are
met:
1. The
Automatic setting is selected
for average piece weight updating in
the Setup menu
2. The current piece count exceeds the
original piece count by at least two
3. The current piece count is less than
twice the original piece count (does not
apply for the first updating operation
if the piece count is entered using the
keypad or a bar code scanner)
4. The current piece count is less than
1000
5. The internally calculated piece count
(such as 17.24 pcs) differs by less than
± 0.3 pcs from the nearest whole num-
ber (in this example: 17).
6. The weighing platform is stable in
accordance with the parameter defined
for saving weights.
If automatic average piece weight
updating is selected in Setup and the
piece count (pcs) is displayed, the
Auto symbol is displayed below
the bar graph. If the average piece
weight has been updated since you
began weighing, the text line shows the
“optimized” code:
(opt.). During
an updating operation,
0pt and the
updated piece count are displayed
briefly in the measured value line.
An acoustic signal indicates the com-
pletion of reference updating. The new
average piece weight and reference
sample quantity are saved.
“Old” ref.
sample qty.
Pieces on
platform
Range for reference
sample updating
n n + 2 2 · n
Counting with Two Weighing
Platforms
You can use two weighing platforms
simultaneously with the Counting
application. When using two platforms,
you can choose from the following
operating modes:
– Counting with two platforms of the
same type
– Counting with one reference platform
and one weighing platform
Counting with Two Platforms of the
Same Type
Use this mode to count different types
of sample material with different
weights. For example, count the
lighter-weight pieces on one platform
and the heavier pieces on another.
You can define which of the two plat-
forms is active when the Combics is
switched on. This is defined in Setup,
under:
Device: Operat.: Main
scale
This is the first platform active when
you switch on the Combics, regardless
of the setting for automatic initializa-
tion of the Counting application.
Counting with One Reference Platform
and One Weighing Platform
In this mode, the reference platform
is a high resolution weighing platform
with a relatively low maximum capacity.
The other platform is used for counting
large amounts, and has a high capacity
with a relatively low resolution.
This allows you to both determine the
average piece weight with high resolu-
tion; i.e., very precisely, and to count
large amounts of parts, without requir-
ing an expensive high-resolution, high-
capacity weighing platform.
The system can be configured to switch
automatically to the reference platform
for initialization (the measured value
line shows
Ref). Following initializa-
tion, you can switch to the counting
platform.
The definition of one weighing plat-
form as a reference platform is config-
ured in Setup, under:
Application:
Counting:
Ref.wt.scale
If automatic average piece weight
updating is enabled, the update is per-
formed on the active platform; in other
words, the system does not automati-
cally switch to the reference platform.