Rice Lake Counting Scales - IQ6500 Installation and Operation Manual - Manual (Page 4)

1
About this Manual
This manual contains operating procedures for the IQ6200, IQ6500, and IQ6500 dual counting scales and
provides the user with all the information necessary for set-up and operation. This manual is organized based
on the procedures you will likely follow when setting-up and using your counting scale. When information is
applicable to all three scales you will see the term “IQ6200/6500”. If information is specific to only one type
of scale, a single name “IQ6200” or “IQ6500” appears. (IQ6500 includes the dual scale unless otherwise
noted.) Keypad keys are shown in bold uppercase characters.
1.0 Introduction
The IQ6200/6500 counting scales offer practical solutions to a full range of precision counting applications.
There are a variety of models available ranging from a weight capacity of 0.5 through 150 pounds utilizing an
internally mounted load cell; there is also a full range from 0.5 through 60,000 pounds on an optional external
second channel. Other features, such as 100-item memory, over/under weight and quantity checking capabil-
ity based on programmable setpoint data, and the
IQ6200’s optional battery power for stand-alone
counting applications make the IQ series an obvi-
ous and practical choice for your parts counting
needs.
Counting scale accuracy is primarily determined by
the following factors:
• Sample size (number of pieces)
• Total sample size as a percentage of full
scale capacity
• Piece to piece weight variation
Sample weight is the most common cause of parts
counting inaccuracy because operators tend to use
the minimum number of sample pieces. For ex-
ample, on an IQ6500 with a sample of 10 pieces
and a total sample weight of 0.2% of full scale
capacity, sample weight resolution is plus or minus
(
±
) 1 part in 1000. This will give you a counting
error of
±
0.1 or higher. Increasing the total sample
weight to 0.5% of full scale capacity (25 pieces) would lower the counting error to
±
0.04 or higher. Weight
display resolution does not affect the counting accuracy of your IQ6500. Displayed weight resolution is up to
1 part in 10,000.
On an IQ6200, a sample of 10 pieces and a total sample weight of 0.2% of full scale capacity would provide a
sample weight resolution of (
±
) 1 part in 150 and a counting error of
±
0.66 or higher. Increasing the total
sample weight to 0.5% of full scale capacity would lower the counting error to
±
0.26 or higher.
There is a direct relationship between piece to piece weight variation and counting accuracy. To achieve
maximum efficiency from your counting scale, the sample piece weight should be as close as possible to the
average piece weight.
Keypad
Sample Platform
Unit-Weight Display Weight Display
Quantity
Display
Bulk Platform
IQ6500 Dual Counting Scale