Counting Operations - Rice Lake 520 Installation Manual

6.0

Counting Operations

The 520 provides a piece count mode that allows the
indicator to serve as a portable counting scale. In
piece count mode, the indicator display shows the
number of parts on the scale rather than the weight of
those parts.
NOTE: Legal-for-Trade applications require product
to be sold by weight rather than an equivalent parts
count. Operator access to piece count mode is
disabled when the indicator is shipped from the
factory.
To enable operator access to piece count mode, set the
ACCESS parameter to ENABLE (COUNT submenu
on the PROGRM menu) or send the CNTMOD=
ENABLE EDP command.
Piece count mode has two submodes:
• Count display mode displays the current parts
count and allows ticket printing using the
CFMT print format.
• Sample acquisition mode is used to calculate
the average piece weight of the sample for
parts counting.
Count Display Mode
Piece count mode is entered by pressing the
( ) key from normal weighing mode. In
GROSS/NET
count display mode, the display shows the number of
parts rather than weight, the two-digit annunciator
displays PC , and pressing the
CFMT print format data string to the serial port.
If a sample weight has not yet been acquired, the
indicator switches automatically to sample acquisition
mode.
42 520 Installation Manual
MODE
PRINT key sends the
MODE ENTER
COUNTING MODE KEY FUNCTIONS
Figure 6-1. Front Panel Key Functions in Piece Count Mode
Sample Acquisition Mode
Sample acquisition mode is used to select the sample
quantity and calculate the average piece weight for the
parts being counted.
To set a new sample weight, do the following:
1. Place empty parts container on scale. Wait for
standstill, then press
weight of the container.
2. Press MODE to enter piece count mode.
3. From count display mode, press the
( UNITS ) key to enter sample acquisition
mode.
4. The indicator display shows the message
Addnnn , where nnn
be placed on the scale. Add the number of
parts shown or choose a different sample size
by pressing the
SAMPLE
the selectable sample quantities (5, 10, 20, 50,
100).
5. Once the sample quantity is on the scale,
press to calibrate the indicator for
ENTER
counting the new parts. The indicator display
shows the message
sample weight, then switches to count display
mode and shows the part quantity.
If the weight of the sample quantity is
insufficient for piece counting, the indicator
automatically requests the next higher sample
quantity by showing the
again. If the sample quantity is at maximum
(100) and the sample weight is still not
sufficient, the indicator shows the message
.
CNT ERR
To view gross and net weight of parts, press
switch from count display mode to normal weighing
mode.
SAMPLE
TARE to acquire the tare
SAMPLE
is the sample quantity to
key to scroll through
–CNT– as it acquires the
message
Addnnn
MODE to