AWS ZEO-50 Bedienungsanleitung
ZEO-50 (50g x 0.001g)
User Manual
ZEO-50
Copyright © 2013 American Weigh Scales, Inc.
All rights reserved. Rev. 1.0
ZEO-50
Thank you for purchasing the American Weigh
ZEO-50 portable milligram scale. Please read all operating
instructions carefully before use. Scales are precision
measuring devices and should always be handled with
proper care. To ensure years of reliable service, keep these
simple tips in mind:
• Do not exceed the scale’s 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, calibration
and adjustment may be necessary.
• Allow your scale to warm up for 30-60 seconds before
performing calibration and adjustment(if available).
• Store your scale in a clean, dry location. Dust, dirt,
and moisture can accumulate on the weighing
sensors and electronics causing inaccuracy or
malfunction.
• Avoid using your scale in close proximity to strong
radio wave emitting devices such as computers, cash
registers, and cordless phones.
• Alwaysweighonaatandlevelsurface,freefrom
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.
• Checkthebatteriesrstifyouarehavinganytrouble
with your scale. This simple step can remedy most
scale issues.
• Do not disassemble your scale. This product contains
no user serviceable parts.
I. Part List
1. Scale
2. 50g Calibration Weight
3. Tweezers & Spoon
4. Weighing Tray
5. Four AAA Batteries
II. Key Description
1. On/Off Key - Turns the scale on or off.
2. Mode Key - Changes the displayed unit of measure.
3. Tare Key - Re-zeros the scale. Used to remove the
weight of a tray or container.
4. PCS Key - Press to enter counting mode. Hold to
set the sample quantity size.
III. Battery Installation
1. Beforeusingthescaleforthersttime,check
the battery compartment and remove any plastic
insulation strips or packaging that may be in place to
prevent battery drainage during shipping/storage.
2. If you are replacing the batteries, make sure the
positive and negative contacts are properly aligned.
On/O Key
Mode Key
Tare Key
PCS Key
ON/OFF
MODE TARE
PCS
g
ZEO-50
IV. Basic Operation
1. Placethescaleonaat,levelsurface.
2. Place the round weighing tray on the scale’s
platform and press the ON/OFF key to turn on the
scale.
3. Once the start-up process completes and the scale
goes to zero you are ready to weigh.
4. Place the quantity to be weighed in the weighing
tray.
5. Wait a couple of seconds for the display to stabilize
before taking a weight reading.
V. Changing the Unit of Measure
1. Press the MODE key to change the scale’s
displayed unit of measure.
2. If the scale is turned off and then back on, it will
default to the last unit used.
• ZEO-50 Units: g (gram) oz (ounce) ozt (troy
ounce) dwt (pennyweight) ct (carat) gn (grain)
VI. Using the Tare Feature
You can use this scale’s tare feature to subtract the weight
of an empty container or vessel for net weight determination.
NOTE: The weight of the container will subtract from the
available capacity.
1. Place the empty container or vessel on the weighing
platform.
2. Press the TARE key once. The display will then
reset to zero. If the container is removed, it’s weight
will be displayed as a negative number.
3. Youmaynowllthecontainerwiththequantityto
be weighed. The display will show the net weight of
the contents.
4. To return to normal weight display (gross weight),
remove any items from the weighing platform and
press the TARE key again to re-zero the scale.
VII. Using the Counting Feature
You can use the counting feature to count items of uniform
weight.Asamplequantitymustrstbeweighedtodetermine
the piece weight:
1. Manually measure out either 25, 50, 75, or 100 pcs
of the items you wish to count and place them on
the platform.
2. Press and hold the PCS key until the display shows
the default sample size: 25.
3. Press the MODE key to change the sample size to
match the number you placed on the scale.
4. PressthePCSkeytoconrmthesamplesize.
5. The display will now show “pcs” next to the value.
You may remove the sample quantity and place any
amountonthescaletondoutthecount.
VIII. Calibration
Calibration and adjustment are performed at the factory.
However, the weighing range can shift slightly during
shipping. Also, due to changes in local acceleration of gravity
around the world, adjustment is recommended when moving
the scale from one location to another. To check calibration:
1. Place the required calibration weight on the scale
and note the displayed value.
2. If the displayed value is not within acceptable
tolerance (see chart on next page), adjustment is
required.
ZEO-50
Model Acceptable
Tolerance (±)
Calibration
Weights
Recommended
Accuracy Class
ZEO-50 0.005g 50g OIML M2
IX. Adjustment
1. Turn the scale on and wait for the display to show
“0.000g”.
2. Press and hold the MODE key until the display
shows “CAL” then release.
3. Press the MODE key once more. The display will
ash“50.000g”.
4. Place the 50g calibration weight on the center of the
platform. Once the weight is accepted, the display
will show “PASS” then return to normal weighing.
Calibration is complete!
X. Troubleshooting
• Problem: Scale will not turn on
• Solution: Check the batteries
• Problem: Displayedweightuctuatesrandomly
• Solution: Make sure your workspace is stable and
free of any air currents or vibration
• Problem: Displayed weight is inaccurate
• Solution: Perform a calibration adjustment
XI. Error Codes
1. OUTZ - Zero range has shifted. Perform calibration
adjustment. If the problem persists, the load cell may
be permanently damaged due to overloading.
2. 88888 - Maximum capacity exceeded. Remove the
extra weight to avoid damaging the load cell.
3. L - Batteries are low. Replace the batteries.
ZEO-50
Max. Capacity 50g
Readability 0.001g
Power 4 x AAA
Dimensions 5.9 x 3.8 x 2.5”
Platform Dimensions 2.6” Ø
Warranty 10 Year Limited Warranty
Capacity/Readability Charts
ZEO-50
50g x 0.001g
1.7637oz x 0.0001oz
1.6075ozt x 0.0001ozt
32.15dwt x 0.001dwt
771.62gn x 0.02gn
250ct x 0.005ct
ZEO-50
American Weigh Scales, Inc.
Norcross, GA 30092
Made In China to our exact
specicationsandqualitycontrol.
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