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Counting
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How can
a scale count something? I thought scales were only good for
weighing things?
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Good question. A counting
scale is, in fact, a weighing scale, but with two major
differences. First, the load cell (the electromechanical device
that translates pressure to weight) is about a hundred times
more sensitive than the type you might find in a standard
weighing scale. Secondly, it is the special circuitry inside a
counting scale that allows it to interpret weight as a piece
count. The scale's microprocessor compares the known weight of
the sampling with the weight of the total lot on the scale and
displays the corresponding count.
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Why do you offer
your scales in different weight capacities (6, 12, and 30 lbs.
for example)? Since the price is the same, why wouldn't I just
want the highest capacity possible? |
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The critical decision when
buying any scale is to match the scale's weight capacity with
the counting task at hand. That's because there is an inverse
ratio between a scale's weight capacity and it's sensitivity.
The lower the weight capacity, the higher the sensitivity (the
scale's ability to differentiate one part from another when
counting). Inversely, the higher the weight capacity, the lower
the sensitivity. This fact is not a limitation of our line of
scales, it's just the laws of physics at work!
As an example, if your primary
counting need is to count business cards, labels, small tags, or
other light weight items, a low capacity scale, say 6 lbs.,
would be best.
QTech's expertise in this area
will assure that the scale you purchase will be best suited to
your specific counting or weighing needs.
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I noticed that the
platter size on the QCS Model is
9 x 11". How can I count 11 x 17" paper on this scale? |
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The platter size
does not have to match the size of the item you are counting. It
this case, the 11 x 17 sheets can overhang the platter edges
without affecting the count, provided the sheets don't touch the
table surface. For convenience, however, you can make a 'false
platter' from a sheet of corrugated cardboard or 1/8" thick
masonite. Place this false platter on the scale and press the
TARE key to remove the weight from the scale memory. Now you can
proceed with counting as usual.
QTech also offers two pre made
expansion platters for use with the QCS, ECS, and X-RES models.
These are recommended if you need to count larger size sheets.
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Operation
Issues:
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How long
do the "C" cell batteries last when used in the ECS and X-RES
models?
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You can expect up to 200
hours of continuous operation which is about 10 times longer
than expensive NiCad batteries. The ability to operate on
readily available alkaline batteries is one of the major
advantages of these mod |
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