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American Weigh Scales, Inc.
BS-100
BS-250
User Manual
B S - S e r i e s
D i g i t a l P o c k e t S c a l e
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BS Series Manual
Thank you for purchasing the American Weigh
BS-Series 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 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 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.
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I. OPERATION
This is a TOUCH SCREEN scale, it is best to press
the keys on the LCD with 30-50g strength using
your nger or pen etc.
1. Press [I/O] key.
2. Wait until “0.0” is displayed.
3. Put the object(s) on the weighing platform.
4. Using the [M] key, you can switch between the
weighing units.
II. COUNTING FUNCTION
1. Turn on the scale and wait until the LCD displays
"0.00"
2. Place a sample amount (25pcs, 50pcs, 75pcs or
100pcs) of the quantity you wish to weigh and count
onto the platform.
3. Press and HOLD [C] key for 2 seconds, the LCD will
display "25".
4. Press [M] key to select the sample amount of the
item that you have put onto the platform.
5. Press [C] key to conrm the above information, the
LCD will now display "pcs" in the corner, to show that
the scale is in counting mode.
6. Remove the sample quantity from the platform.
7. You now can place any amount of your item(s) on
the scale and the LCD will display a count.
8. You can switch between weighing mode or counting
mode by pressing [M] or [C] key respectively.
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III. TARE WEIGHING
1. Turn on scale as described above.
2. Place the “tare item” on the platform.
3. Press [T] and wait until "0.0" or “0.00” is displayed.
4. Add the “net-weight-item”.
IV. CALIBRATION
Calibration is NOT required before rst use. Only
calibrate if scale is not weighing properly.
**Make sure you use the correct calibration weight for
your scale or the calibration will not be accurate**
1. Turn on the scale by pressing [I/O] key.
2. Wait until the LCD displays “0.0” or “0.00” and then
press and HOLD the [M] key for 3 seconds, the LCD
will display “CAL” then release the [M] key.
3. Press [M] key again, the LCD will ash “CAL” and
then the required calibration weight.
4.a. For BS-100: Add a 100g calibration weight, the
display will show “PASS” and return to normal weighing mode.
4.b. For BS-250: Add a 200g calibration weight, the
display will show “PASS” and return to normal weighing mode.
5. Put away the calibration weight and press [I/O] to
turn off the scale. Calibration is nished!
Repeat this process if your scale is still not weighing
properly. Please check the availability of weights at the
store you bought your scale from.
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V. TROUBLESHOOTING
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
Nothing, Battery-Symbol, [lo] or [88888]
Change the batteries.
[OUE2] Recalibrate the scale as shown above.
[EEEEE] You are overloading the scale. Remove the
excessive load immediately!
[LLLLL] The delicate weighing load cells have
been damaged by misusing the scale
(i.e. it was shocked, dropped or
overloaded). You can try recalibrating the
scale. If the load cell has not been
damaged too much it will work
again after recalibration.
[UNST] Use the scale in a more stable position
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Model
BS-100 BS-250
Capacity 100g / 64.30dwt / 500ct / 1543
gn
250g / 8.820oz / 8.540ozt /
160.75dwt
Resolution 0.01g / 0.01dwt / 0.05ct / 0.1gn
(0.2gn minimum)
0.1g / 0.005oz / 0.005ozt /
0.1dwt
Display
5.5 - Digit Backlit LCD
Calibration Weight
(not Included)
100g 200g
Platform Dimensions
(inches)
2.6 x 1.75
Scale Dimensions
(inches)
4.25 x 2.75 x 0.75
Power
2 x AAA Batteries (included)
Gross Weight
0.33 lb
Specications
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