AWS MB-100 Bedienungsanleitung
American Weigh Scales
MB-100 (100g x 0.01g)
MB-650 (650g x 0.1g)
User Manual
Matchbox
Scale
Copyright © 2011 American Weigh Scales, Inc.
All rights reserved. Rev. 3.0
Matchbox Manual
Thank you for purchasing the American Weigh
Matchbox Series digital pocket 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. This
scale has integrated overload protection, but any
overload protection has its limits!
• 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 inaccuracy or
malfunction.
• Avoid using your scale in close proximity to strong
radio wave emitting devices such as 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.
• Calibration should be checked and adjusted
occasionally as part of routine scale maintenance.
I. Part List
1. Scale
2. Plastic Cover
3. Printed Cover
4. CR2032 Battery(one)
II. Key Description
1. ON/OFF - Press to turn the scale on or off. Hold
(while scale is on) to enter Calibration Mode (expert)
2. TARE/MODE-Pressbrieytore-zerothescale.
Hold to change weighing unit.
III. Battery Installation
Proper Battery Installation
Positive Side Facing Out
2.
1.
g
ON/OFF
TARE/MODE
Matchbox Manual
Low batteries can cause inaccuracies in digital scales. If
youareexperiencingissueswithyourscale,rsttrynew
batteries. Most times, this will solve the problem.
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.
IV. Operation
1. Placethescaleonaat,levelsurfaceandpressthe
ON/OFF key to turn the scale on.
2. Once the start-up process completes and the scale
goestozeroyouarereadytoweigh.
3. Place the quantity to be weighed onto the weighing
platform.
4. Waitacouplesecondsforthedisplaytostabilize
before taking a weight reading.
5. To turn the scale OFF, press the ON/OFF key again.
V. Changing the Unit of Measure
1. Press and hold the TARE/MODE key to change the
scales displayed unit of measure.
2. If the scale is turned off then back on, it will default
to the last unit used.
• MB-100 & MB-650 Units: g (gram) oz(ounce)
ozt(troyounce) 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 (subtractive taring).
1. Place the empty container or vessel on the weighing
platform.
2. Press the TARE/MODEkeybriey.Thedisplaywill
thenresettozero.Ifthecontainerisremoved,its
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/MODEkeyagaintore-zerothe
scale.
VII. Calibration
Initial calibration is performed at the factory. However, the
calibration can drift slightly due to stresses from 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.
Matchbox Manual
Model Acceptable
Tolerance (±)
Calibration
Weight
Recommended
Accuracy Class
MB-100 0.02g 100g OIML M2
MB-650 0.2g 500g OIML M2
VIII. Adjustment
1. With the scale ON, press and hold the ON/OFF
button to enter calibration mode.
2. TheLCDwillash“CAL”followedbytherequired
calibration weight (see chart above).
3. Place the required weight on the center of the scale
platform.Thedisplaywillash“F”thenreturnto
normal weighing. Adjustment is complete!
NOTE: Adjustment using the incorrect mass will
result in inaccurate readings. Only use listed weight.
IX. Troubleshooting
• Problem: Scale will not turn on
• Solution: Check the batteries and battery contacts.
• Problem: Displayedweightuctuatesrandomly
• Solution: Make sure your workspace is stable and
free of any air currents or vibration. In some cases,
nearby radio wave emitting devices can cause
uctuations.
• Problem: Displayed weight is inaccurate
• Solution: Perform a calibration adjustment. If
you are still having trouble, contact our warranty
department.
X. Error Codes
1. OUTZ - Zero point has drifted out of the acceptable
range. Try to perform a calibration adjustment. If the
problem persists, the load cell may be permanently
damaged due to overloading.
2. O-Ld - Overload. The maximum capacity has
been exceeded. Remove the extra weight to avoid
permanently damaging the load cell.
3. Lo - Batteries are low. Replace the batteries.
XI. Specications
MB-100 MB-650
Max. Capacity 100g 650g
Readability 0.01g 0.1g
Min. Weight 0.03g 0.2g
Power One“CR2032”LithiumBattery
Dimensions 1.4 x 2.9 x 0.5 in.
Platform Dimensions 1.4 x 1.8 in.
Warranty 10 Year Limited Warranty
XII. Capacity/Readability Charts
MB-100 MB-650
100g x 0.01g
3.527ozx0.001oz
3.215oztx0.001ozt
64.30dwt x 0.01dwt
500ct x 0.05ct
1543.2gn x 0.2gn
650g x 0.1g
22.92ozx0.01oz
20.89oztx0.01ozt
418.0dwt x 0.1dwt
3250ct x 0.5ct
10031gn x 2gn
Matchbox Manual
American Weigh Scales, Inc.
Norcross, GA 30092
Made In China to our exact
specicationsandqualitycontrol.
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