American Weigh Scales CP-300 User Manual
American Weigh Scales, Inc.
CELLPHONE Scale
D ig i t al Po c k et S c al e
T
CP-300 (300 x 0.1g)
CP-100 (100 x 0.01g)
User Manual
Cellphone Scale Manual
Thank you for purchasing the American Weigh
Cellphone 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 sufcient 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 cause an adverse
effect on the reliability and accuracy of your scale.
Handle with care. Gently apply all items to be weighed
onto the platform. 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.
I. OPERATION
1. Press [ ] key.
2. Wait until "0.0” or "0.00" is displayed.
3. Place the item(s) to be weighed on the platform.
4. Using the [MODE] key, you can switch between
weighing units.
5. To turn the scale off, press the [ ] key again.
II. TARE WEIGHING
To weigh using the tray, you can place it on the
platform before turning the scale on or:
1. Turn on scale as described in the rst section.
2. Place the weighing tray or container on the platform.
3. Press [ ] key briey and wait until "0.0" is
displayed.
4. Add the "net-weight-item" to the tray or container.
III. CALIBRATION
Only calibrate your scale if your scale is not weighing
properly. This scale comes pre-calibrated.
A. CP-300 Calibration Steps
1. Turn off the scale. Press and hold the “MODE” key
then press the [ ] key until the display shows a
random number. Now release both keys.
2. Press the [ ] key again. The display will show “AL
0” then “300.0”. Gently place a 300g weight on the
center of the platform and press the [ ] key again.
The LCD will display “AL F” then “300.0”.
3. Calibration is complete. If the scale shows “AL E”,
an error has occurred - Turn off the scale and repeat
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