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American Weigh Scales AT-500 Ash Tray Scale User Manual

American Weigh Scales AT-500 Ash Tray Scale FEATURE

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American Weigh Scales AT-500 Ash Tray Scale

American Weigh Scales AT-500 Ash Tray Scale PRODUCT

About American Weigh Scales

American Weigh Scales, Inc. (AWS) is a company that specializes in the manufacturing and distribution of digital scales and weighing equipment. The company is based in Norcross, Georgia, USA, and has been in operation for several decades.

AWS offers a wide range of scales for various applications, including kitchen scales, bathroom scales, laboratory scales, industrial scales, and more. These scales are designed to provide precise measurements for a variety of purposes, such as cooking, baking, scientific research, and industrial weighing needs.

Thank you for purchasing the American Weigh AT-500 digital scale.

Please read all operating instructions carefully before use.

  • This electronic scale is a precision instrument. With normal care and proper treatment, it will provide years of reliable service.
  • Never load the scale with more than the maximum capacity. Overloading will permanently damage it!
  • Avoid any exposure to extreme heat or cold. Your scale works better when operated at normal room temperature.
  • Always allow the scale to acclimate to normal room temperature for at least one hour before use.
  • Give your scale sufficient warm-up time. Usually, 30-60 seconds before calibration to give the internal components a chance to stabilize.
  • Keep your scale in a clean environment. Dust, dirt, moisture, vibration, air currents, and a close distance to other electronic equipment can all have an adverse effect on the reliability and accuracy of your scale.
  • Handle with care. Gently apply all items to be weighed onto the tray top. Although this scale is designed to be quite durable, try to avoid rough treatment as this may permanently damage the internal sensor.
  • Avoid shaking, dropping, or otherwise shocking the scale. This is a precision instrument and must be handled with extreme care.
    Only operate the scale on a stable, vibration-free surface.


Place the Scale on a horizontal flat surface and remove the metal ash tray cover before weighing.

  1. Press the [ON/OFF] key.
  2. Wait until “0.0” is displayed.
  3. Place the object(s) on the weighing platform.
  4. Using the [MODE] key, you can switch between weighing units.


  1. Turn on the scale as described above.
  2. Place the “tare item” such as a tray on the platform.
  3. Press [TARE] and wait until “0.0g” is displayed.
  4. Add the “net-weight-item”.


Calibration is NOT required before first use. Only calibrate if the scale is not weighing properly.

  1. Turn the scale ON and wait for the display to go to “0.0g”.
  2. Press and hold the [CAL] key until the display shows “CAL”. Now release the key.
  3. The display will flash “0.0g”. Ensure that no weight is on the scale and press the [CAL] button to calibrate the zero point of the scale.
  4. The display will now flash “200.0g”. Place a 200g calibration weight (not included) onto the center of the platform and press the [CAL] key once more.
  5. The display will show “PASS”. Calibration is complete!


The primary reasons for inaccuracy or malfunction are low batteries, incorrect calibration, overload, or operating on an unstable surface. Please keep this in mind and maintain and operate your scale properly. This scale is a precise instrument and must be handled with the utmost care and caution.

  • [Display]: Elimination of errors 
  • [Err]: You are overloading the scale. Remove the excessive load immediately!
  • [UNST]: Use the scale in a more stable position


FAQS About American Weigh Scales AT-500 Ash Tray Scale

What is the scale’s accuracy?

The degree to which the average value of an object’s displayed weight is near to the object’s actual weight is a measure of a scale’s accuracy.

A digital scale can it be cleaned?

Detergents and suitable solvents, like 70% ethanol or isopropanol, can also be used for cleaning.

Do digital scales degrade in precision?

If a digital scale is subjected to excessive heat or cold, it could provide misleading readings.

Do scales have perfect accuracy?

Discrepancies on a bathroom body scale might reach 30%

Its name means “scales,” why?

“Scales” is the collective noun for weighing scales.

Where can you find scales?

Although certain species may have them on the upper leaf surfaces, soft scales are typically found on the undersides of leaves and stems.

What categories do scales fit into?

the terms nominal, ordinal, interval, and ratio.

Are scales brittle or hard?

either a soft scale or an armored scale.

Why don’t the scales budge?

If you have recently started exercising and are eating a high-protein diet, you can grow muscle while losing fat.

What is the actual application of scales?

Typically found in architectural drawings for building construction.

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