American Weigh AMW-250i User manual

AMW-250i Digital Scale
250g x 0.1g
USER’S MANUAL
Hold Kg/Lb Tare
AMW-250i ON/OFF
TM
g

American Weigh
AMW-250i User’s Manual
250g x 0.1g
Thank you for purchasing the AMW-250i Digital Scale. With normal
care and proper treatment, it will provide you with years of reliable ser-
vice. Please read all operating instructions carefully before using the
scale. It may be necessary to calibrate the scale before its rst use .
• Avoid any exposure to extreme heat or cold. Your scale will work
better when operating in normal room temperature. Allways allow the
scale to acclimate to normal room temperature for at least an hour
before use.
• Give the scale sufcient warm up time before use. Usually 30 to 60
seconds to give the internal components time to stablize.
• Keep your scale in a clean environment. Dust, dirt, moisture, vibra-
tion, air currents, or a close proximity to other electronic equipment can
cause an adverse effect on the reliability and accuracy of your scale.
• Handle with care. Gently apply all items to be weighed onto the
weighing surface. Although this scale is designed to be quite durable,
avoid rough treatment as this may permanently damage the internal
sensor.
• Do not shake, drop, or otherwise shock the scale. This is a precision
instrument and must be handled with extreme care.
• Only operate the scale on a stable, vibration free surface.
• Always store in a dry place to avoid moisture accumulation on
internal components.

I. Operation
1. Place the scale on a level surface and press the “ON/OFF” switch to
turn on the scale.
2. Wait until the LCD display shows “0” before adding items to be
weighed.
3. Gently apply all item(s) to be weighed onto the weighing platform.
4. You can press the “Kg/Lb” button to switch between kg / g and lb /
oz.
II. Tare Weighing.
1. Turn on scale as described above.
2. Place the container or tare item onto the platform.
3. Press TARE and wait until [0.0] is displayed.
4. Add the “net-weight-item”.
Note: When all weight is removed from the scale, the tared value of a
container will be displayed as a negative value. Press the tare button
again to return scale to zero.
III. Memory / Add Weigh
This scale has an “Add Weigh” function.
1. Place an item to be weighed on the tray
2. Press “TARE”, thedisplay will reset to “0.0”
3. Place another item onto the scale and press “TARE” again
4. The combined weight of the two items will be displayed. You may
repeat this process for up to 12 items.
IV. Hold Function
To use the “HOLD” function.
1. Turn the scale ON
2. Place the item(s) on the scale.
3. Press the “HOLD” button. The symbol “HOLD” will show on the
display.
4. The scale will beep once the weight has been stored in memory.
5. The weight will be displayed on the LCD for 5 seconds even after
removing the item(s) from the weighing platform.
6. To clear the HOLD value, press the “HOLD” button again.

IV. Calibration (you will need two 100g calibration weights and one
50g calibration weight)
1. Turn the scale upside down. Set the switch on the underside of the
scale to “CAL” then set scale right side up again.
2. With the scale “OFF”, press and hold both the TARE and the
ON/OFF keys at the same time for about 5 seconds. A random number
will be displayed.
3. Place a 100g weight on the tray and wait 5 seconds.
4. Press the ON/OFF key. The display will show 100.0 and then an-
other random number. Do not remove the weight yet.
5. Add a 50g and another 100g weight to the platform and wait 5 sec-
onds. (there should now be 250g of weight on the scale)
6. Press the ON/OFF key. The display will show 250.0 and then PASS.
7. Press the ON/OFF to nalize calibration. You may now turn off the
scale and return the switch on the bottom to “Normal”.
IV. Troubleshooting
The primary reason for innaccuracy or malfunction are low batteries,
overload or operating on an unstable surface. Please keep this in mind
and maintain and operate your scale properly. This scale is a precision
instrument and must be handled with care.
Error Code Descriptions:
1.Error: Nothing on screen, [LO],
1.Solution: Replace Batteries
2.Error: [EEEE]
2.Solution: Load is in excess of 6000g, remove the extra load.
3.Error: [Out2]
3.Solution: Recalibrate the scale as described above.
V. Specications
Capacity: 250g , 160.8 dwt, 8.04 ozt, 8.820 oz
Graduation: 0.1g; 0.1dwt, 0.005ozt, 0.005oz
Units: grams (g), pennyweights (dwt), troy ounces (ozt), ounces (oz)
Calibration: Auto Calibration, 3 point linearity User Calibration
Tare Range: Tare full capacity
Auto Off: 60 seconds