PC-905 Counting Scale User Instructions
11
3.5 Operation as a Counting Scale
3.5
Operation as a Counting Scale
Counting consists of two major steps; entering a piece weight and adding the
items to be counted. You enter the piece weight in one of these ways:
• key in a known piece weight
• bulk sampling or dribble sampling (
bulk
is the default method)
• reverse sampling, method 1 or method 2 (
method 1
is default). This
can be used if either bulk or dribble is enabled.
These are fully explained in their respective sections below along with step
by step instructions for counting using these methods. Sampling methods
were set up before you received your scale but they can be changed. See
the
Service Manual
.
Once a piece weight is established,
it remains active until another piece
weight is manually entered,
automatically calculated by a
sampling process, or the piece
weight is cleared by pressing
CLR/.
and then the
PIECE WEIGHT
key.
General Counting Information
If the
COUNT
annunciator is lit, numbers on the display show the number of
pieces on the scale. If the
WEIGHT
annunciator is lit, the display shows the
weight of the items on the scale. Press the
COUNT/WEIGHT
key to switch
between these two.
If there is no piece weight, the scale will not go into count mode when you
press the
COUNT/WEIGHT
key.
After counting items, remove them and the display should return to zero. If
not, press the
ZERO
key.
The
STABLE
annunciator is controlled by the weight division setting and
STABLE setting in SCALE menu and does not necessarily reflect the
stability in the count mode.
You can key in a known tare weight on the numeric keypad and press the
TARE
key. This enters the tare weight and the
TARE
indicator lights to
remind you that there is an active tare weight.
When you press the
SAMPLE
key the scale performs an auto-zero or tare.
A counting scale needs a minimum amount of weight to calculate counts with
accuracy. Avery Weigh-Tronix recommends the sample weight be a
minimum of 0.04% of scale capacity for 99% accuracy. The table below
shows the minimum sample weights recommended to guarantee the
accuracies listed. Actual minimum sample weight required is 0.02%.
Summary of Contents for PC-905
Page 1: ...PC 905 Counting Scale PC 905 User Instructions ENGLISH 43002 0016 Issue AB June 2008...
Page 4: ...4 PC 905 Counting Scale User Instructions...
Page 27: ...PC 905 Counting Scale User Instructions 27 4 2 Preset Print Formats Status Bytes...
Page 34: ...34 PC 905 Counting Scale User Instructions Specifications...
Page 35: ......
