Piece Counting Operation
The EL 3000 Digital Scale uses the
sampling
method to determine the number of pieces on
the platform. The accuracy of this operation
depends upon part consistency and sample
weight. When sampling pieces, always count the
parts in your hand and place them on the
platform all at once.
To further increase the accuracy of this opera-
tion, the EL 3000 contains an algorithm called
"Automatic Average Weight Improvement"
(AAWI) which allows updating of the piece count
by applying
by applying small quantities of pieces – two to
current piece count – to the platform. For exam-
ple, if the current piece count shown on the dis-
play is 10, then adding 2 to 10 more pieces to
the platform at the same time will trigger AAWI.
When this occurs, the "Unit Wt." indication will
flash briefly.
The total sample weight and the unit piece
weight both have limits to assure accuracy.
These limits can be found in the table at the bot-
tom of the page.
To use the piece counting operation:
1. Toggle
the
MODE
key until the scale is in “pcs” mode. If there is no previous sample entered, the
scale will respond with the following display indication. If the following message does not appear,
press the
SAMPLE
key once.
This display indication is prompting you to
place 10 identical samples on the platform
all at once.
NOTE
: If you entered this screen
by accident, you can press the
MODE
key to
escape.
G
oz
T
N
lb
pcs
%
OK
HI
LO
O
E
kg
2. Press
the
ZERO
key to zero the scale.
3. Place 10 identical samples on the platform
all at once. When the "Stable" flag becomes
lit, the display should look like this:
G
lb
pcs
OK
LO
kg
4. Press
the
SAMPLE
key. If the sample weight and/or unit weight is within the proper limits, the scale
will now show the number of pieces. If not, you will be prompted to place
20, 50, 100, 200 and 500
pieces on the platform in succession. If this operation fails even with 500 pieces, the unit weight of
the objects you wish to count is not heavy enough for the scale to process accurately. See table
below for more information.
Piece Count Sample Weight Guide:
The scale has both a minimum piece weight and a minimum sample weight to ensure accuracy. To
obtain the minimum piece weight, multiply the scale’s graduation by 0.8. To obtain the minimum sample
weight, multiply the scale’s graduation by 25. Shown below is an example for a 12 lb scale:
Capacity / Graduation
Minimum Piece Weight
Minimum Sample Weight
12 lbs x 0.001-lbs
0.0008-lbs
0.025-lbs
4
Revision 2.95
