AWS SG-300 Manuel utilisateur
American Weigh Scales
SG-300 (300g x 0.1g)
User Manual
SG-300
Copyright © 2011 American Weigh Scales, Inc.
All rights reserved. Rev. 1.0
SG-300 Manual
Thank you for purchasing the American Weigh
SG-300 spoon 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:
• When weighing, try to keep your the spoon as level
and steady as possible.
• 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.
• Gently apply all items to be weighed. Do not drop
items onto the weighing spoon.
• 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.
HOLD
ON/TAREMODE
I. Part List
1. Scale
2. 1.5 Tbsp Weighing Spoon
3. 3.0 Tbsp Weighing Spoon
4. AAA Batteries (x2)
II. Key Description
1. Mode Key - Changes the displayed unit of measure.
2. On/Tare Key - Turns the scale on. Re-zeros the
scaleifpressedbriey.Holdtoturnoffthescale.
3. Hold Key - Press to hold the weight on the display.
III. Battery Installation
Proper Battery Installation
3.
1. 2.
HOLD
ON/TAREMODE
Low batteries can cause inaccuracies in digital scales. If
youareexperiencingissueswithyourscale,rsttrynew
batteries. Most times, this will solve the problem.
Use a small Phillips
head screwdriver
to open battery
compartment
SG-300 Manual
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. Press the ON/TARE key to turn the scale on.
2. Once the start-up process completes and the scale
goes to zero you are ready to weigh.
3. Place the quantity to be weighed onto the weighing
spoon and hold it level and steady.
4. Wait a couple seconds for the display to stabilize
before taking a weight reading.
5. To turn the scale OFF, press and hold the ON/
TARE key.
V. Changing the Unit of Measure
1. Press the 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.
• SG-300: g (gram) oz (ounce)
VI. Using the Tare Feature
Use the Tare feature to re-zero the scale if necessary
1. Press the ON/TAREkeybrieyThedisplaywillthen
reset to zero.
VII. Calibration
Initial calibration is performed at the factory. Calibration
should only be performed by experienced users and only
if the scales readings are off on a known weight such as
a calibration weight. Please note that accuracy will also
depend highly on the angle that you hold the scale. It should
always remain level:
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.
Model Acceptable
Tolerance (±)
Calibration
Weight
Recommended
Accuracy Class
SG-300 0.3g 200g OIML M2
VIII. Adjustment
1. Press and hold the MODE button to enter calibration
mode.
2. Thedisplaywillash“CAL”.Makesurethespoonis
empty and press MODE again.
3. Thedisplaywillash“200.0g”.Placea200g
calibration weight in the weighing spoon and keep
the scale level and stable.
4. Thedisplaywillash“PASS”thenreturntonormal
weighing. Calibration is complete!
SG-300 Manual
IX. Troubleshooting
• Problem: Scale will not turn on
• Solution: Check the batteries and battery contacts.
• Problem: Displayedweightuctuatesrandomly
• Solution: Make sure to hold the scale as still and
level as possible when weighing. Avoid strong air
drafts and vibration sources.
• 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. Care and Maintenance
1. The detachable spoons are dishwasher safe.
2. To clean the body of the scale, use a slightly damp
cloth. Do not use harsh solvents or abrasives.
XII. Specications
SG-300
Max. Capacity 300g
Readability 0.1g
Min. Weight 0.5g
Power 2x1.5V“AAA”Alkaline
Display Dimensions 0.5 x 1.3 in.
Spoon Sizes 1.5 Tbsp and 3.0 Tbsp
Warranty 10 Year Limited Warranty
XIII. Capacity/Readability Charts
SG-300
300g x 0.1g
10.58oz x 0.01oz
SG-300 Manual
American Weigh Scales, Inc.
Norcross, GA 30092
Made In China to our exact
specicationsandqualitycontrol.
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