11
Counting Operations
To perform a counting operation the first step is to obtain the average weight
of each piece or the piece weight, abbreviated as pcwt. You can key in a
known piece weight or you obtain a piece weight by sampling.
Sampling consists of placing a known number of pieces on the scale and
letting the scale determine the individual piece weight. The scale uses this to
determine the count of pieces placed on the scale. The piece weight is kept
in memory until a new sample is taken.
Piece weights and other information can be stored in an internal database.
Information is stored under part numbers. When you recall a part number from
the database, the piece weight, tare weights, etc. become active. This means
you do not have to resample parts each time you want to count them.
You can sample parts using the bulk or dribble modes. In bulk mode you are
prompted to place a specific number of parts on the scale all at one time.
After motion ceases the scale automatically calculates the piece weight and
goes into the count mode. This means you must have the counted parts or
sample ready to place on the scale all at once.
In dribble mode the scale prompts you to place the sample of parts on the
platform and when you are done, press the ENTER key. The scale calculates
the piece weight and puts the display into the count mode. This allows you to
count out your sample parts onto the platform.
When you press the SAMPLE softkey you are given two new softkey
choices. One is sMode. This stands for sample mode. Press this and you
can choose between Bulk or Dribble sampling modes. The other softkey
offered is sWeight. This stands for sample weight and lets you choose from
four minimum samples weights based on the shown percent of full scale
capacity.
Follow these steps to perform a counting operation using the bulk mode:
1.
Press the SAMPLE softkey. . .
The scale zeroes itself and the
display prompts you to:
Load all
samples or key in sample size.
Sample Size = 5. Five is the default
sample size.
2.
You can place all the items or
parts on the scale
or
key in a new sample size, X,
press the ENTER key, then
place all X samples on the
scale. . .
The display shows
Standby. . .
computing piece weight, then the
display shows the weight and count.
3.
Place the items to be counted on
the scale. . .
Count and weight are displayed.
4.
Repeat step three until you are
done with all identical items.
Counting in Bulk Mode
Counting Overview
Some softkeys may not be
enabled in your configuration.
Disregard references to these
softkeys in the manual.
A Piece Weight LookUp
(PWLU) option is available for
the PC-820. See the Service
Manual
for more information on
setting up the PC-820 for this
option.
