“What if I can’t find what I WANT?
We offer a complete array of weighing equipment for a variety
of applications, such as process control, checkweighing, force
measurement, torque testing, parts counting, material handling,
just to name just a few. Our on-line catalog includes some
of our most popular products organized by product categories.
Use our web site search to
find items by keywords, like “Counting Scale”. Of course,
if you can’t find what you’re looking for, or need to find
out more about any of our products, please contact us toll
free @ 1-800-572-2531 or e-mail us at info@johnsonscale.com.
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What about service?
We are an authorized distributor for all the products
in our on-line catalog, and honor all manufacturers’ warranties,
as well as perform out of warranty service. All repairs
are performed by state licensed service technicians, following
NIST procedures. Calibration
certificates are available (for an additional charge),
upon request. |
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What should I do if I think the product does not work
properly?
We would suggest contacting us before returning the item
for repair/replacement or credit. In many instances, the scale
is working fine and the operator needs some pointers. Occasionally,
certain environmental conditions (such as temperature, power
issues, air currents, scale not level, etc.) may exist that
are altering the operation of the equipment. Many times we
can solve the problem over the telephone.
In the event that you need to return the item, you must contact
us for a return authorization number before shipment. This
can be done by telephone, or by filling out our RMA
form. Our service department will respond, by telephone
and/or e-mail within 24 hours.
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What is NTEP?
The “National Type Evaluation Program “ is the result
of the cooperation between National Conference of Weights
& Measures, National Institute of Standards and Technology,
and State & Local weights and measures officials in
determining the acceptability of weighing equipment
for commercial uses. NTEP Reviews products voluntarily
submitted by manufacturers for type evaluation and approval.
A certificate of conformance is issued for products
that pass NTEP’s testing criteria. (Most states require
NTEP approval for scale products to be used in “legal
for trade” applications.) |
What is “legal for trade“ and do I need it?
The best way to determine if your application requires a
"legal for trade” scale is to ask yourself “Does the amount
of money, charged to a customer, depend on the displayed value
on a weighing device?” If it does you are most likely required*
to have a “legal for trade” scale. (Some examples: price computing,
hanging produce scale, shipping scales, parcel post scales,
etc.)
*Check your state or local Weight & Measures department for
guidelines on specific applications.
How do I know which counting scale is best for me?
First, find a model that meets your capacity and accuracy
requirements. Then, look at the features required for your
application, such as computer/printer interfacing capability,
battery operation, data storage, etc. To determine the correct
model, you will to need to know the weight of the lightest
component that you wish to count and the weight and dimensions
of the heaviest package you will be placing on the scale.
(Use our weight conversion chart on our homepage.)
Our scale won’t give accurate counts-why?
Many factors may cause a counting scale to display incorrect
counts. Most of the factors are not a result of the scale
being defective or out of calibration (although these do occur)
they are usually a result of the scale being incorrect for
the application or operator error. Ask yourself some simple
questions listed below if you are are having difficulty:
- Are any external sources causing the scale to give varying
counts such as a bad power source, fans blowing on the scale,
vibrations or extreme temperature changes?
- Is the scale level?
- Since counting scales count by determining the average
weight of the component being counted, it is important to
use a sample size of at least 25 pieces. The larger the
sample size the better the count. Although all counting
scales will let you use a sample of less than 25, we always
recommend using at least 25 pieces as a sample.
- Are all your operators using the same sample size? Are
some using 10 while others 25 or 50? This too will alter
your results.
If your still having problems feel free to contact us.
What lab balance is best for my application?
When purchasing a laboratory balance you should always identify
your requirements as follows:
- Determine your capacity and readability.
- Consider pan size and other important parameters such
as an RS-232 interface, below balance weighing, windshield,
battery operation, built-in internal calibration, etc.
- Note the environment where the balance will be placed.
A balance that is dust tight or splash proof may be best
suited for your application.
- Make sure that when you purchase a unit that it has all
the features you need for your application.
