American Weigh Scales, Inc.
AMW Series
D i g i t a l P o c k e t S c a l e
AMW 55
AMW 100
AMW 250
AMW 600
AMW 1KG
User Manual
AMW-Series Manual
Thank you for purchasing the American Weigh AMW-
Series digital pocket scale. Please read all operating instructions carefully before use. Scales are precision instruments and should always be handled with proper care. To ensure years of reliable service, keep these simple tips in mind:
• Do not exceed the scales maximum capacity.
Overloading your scale can permanently damage it!
• Avoid exposure to extreme heat or cold. Scales perform best at normal room temperature. If temperatures have changed dramatically, recalibration may be necessary.
• Allow your scale to warm up for 30-60 seconds before performing calibration (if available).
• Store your scale in a clean, dry location. Dust, dirt, and moisture can accumulate on the weighing sensors and electronics causing innacuracy or malfunction.
• Avoid using your scale in close proximity to strong radio wave emitting devices such as computers, cash registers, and cordless phones.
• Always weigh on a flat and level surface, free from vibrations and drafts. The corner of a room is usually the most stable.
• Gently apply all items to be weighed. Do not drop items onto the weighing platform.
• Avoid dropping your scale. The warranty does not cover damage due to rough treatment or overload.
I. OPERATION
Place Scale on a horizontal flat surface.
1. Press [ON/OFF] key.
2. Wait until "0.0” is displayed.
3. Put the object(s) on the weighing platform.
4. Using the [MODE] key, you can switch between the weighing units.
II. TARE WEIGHING
1. Turn on scale as described above.
2. Place the "tare item" on the platform.
3. Press [TARE] and wait until "0.0" is displayed.
4. Add the "net-weight-item".
III. CALIBRATION
Calibration is NOT required before first 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**
AMW-55: 50g calibration weight
AMW-100: 100g calibration weight
AMW-250: 200g calibration weight
AMW-600: 500g calibration weight
AMW-1KG: 1000g calibration weight
Calibration Procedures for AMW-250, AMW-600, AMW-1KG
1, Turn OFF the scale, press and hold the [ ] key and then press [ON/OFF] shortly. After 1-2 seconds, the scale will display a random number. Now release the [
] key.
2, Wait 2 seconds and press [ON/OFF] key again shortly.
3, The LCD display will read “2ero” followed by the amount of
weight required to calibrate (listed above).
4. Place the required calibration weight on the platform (ie.
AMW-600 place a 500g on the scale)
5. Press [ON/OFF] again. The LCD display reads “CAL”, then
“PASS”.
6. Remove the weight and press [ON/OFF] to turn off the scale.
Finished! Repeat if needed.
Calibration Procedures for AMW-55
1. Turn OFF the scale.
2. Press [ON/OFF] shortly. Then immediately press and hold
[MODE] until “CAL” is displayed. Release the [MODE] key.
3. Press [MODE] again. Now the display will show “CAL” and
“50.00” will flash 3 times.
4. Place a 50g weight on the center of platform. Wait 3-4 seconds. The LCD display will read “PASS”, then “50.00”.
5. Remove the weight and press [ON/OFF] to turn off the scale.
Finished! Repeat if needed.
Calibration Procedures for AMW-100
1. Turn on the scale by pressing [ON/OFF] key.
2. Wait until the LCD displays "0.00" and then press and HOLD the [MODE] key for 3 seconds, the LCD will display "CAL"
then release the [MODE] key.
3. Press the [MODE] key again, the LCD will display "CAL" and then "100.00"
4. Add a 100g calibration weight, the display will show "PASS" and return to normal weighing mode.
5. Put away the calibration weight and press [ON/OFF] to turn of the scale and the calibration is finished!
Please check the availability of weights at the store you bought your scale from.
IV. 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
