AWS AT Series Manual de usuario

AT-100 (100g x 0.01g)

AT-500 (500g x 0.1g)

User Manual

AT-Series

Thank you for purchasing the American Weigh

AT-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.

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.

• Alwaysweighonaat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.

• Checkthebatteriesrstifyouarehavinganytrouble

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. Cover

3. Weighing Tray

4. AAA Batteries (x2)

II. Key Description

III. Battery Installation

1. Beforeusingthescaleforthersttime,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.

Mode Key

Tare Key

Weight Indicator

Cal Key

ON/OFF Key

MAX: 100g d=0.01g

AT-Series

IV. Operation

1. Placethescaleonaat,levelsurfaceandpressthe

ON/OFF 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

platform.

4. Wait a couple 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 scales displayed

unit of measure.

2. If the scale is turned off then back on, it will default

to the last unit used.

• AT-100 Units: g (gram) oz (ounce) ct (carat)

gn (grain)

• AT-500 Units: g (gram) oz (ounce) ozt (troy

ounce) dwt (pennyweight)

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. Youmaynowllthecontainerwiththequantityto

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. 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 below), adjustment is required.

Model Acceptable

Tolerance (±)

Calibration

Weight

Recommended

Accuracy Class

AT-100 0.02g 100g OIML M2

AT-500 0.2g 500g OIML M2

VIII. Adjustment

1. Press and hold the CAL key until the display shows

“CAL”.

2. Press the CALkeyagain.Thedisplaywillash

“CAL” followed by the calibration weight value (see

chart).

3. Place the calibration weight on the center of the

weighing platform. Make sure you are using the

correctweightforyourspecicmodel.

4. Once the weight is accepted, the display will show

“PASS” then return to normal operation.

AT-Series

IX. Troubleshooting

• Problem: Scale will not turn on

• Solution: Check the batteries

• Problem: Displayedweightuctuatesrandomly

• 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

X. 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.

XI. Specications

AT-100 AT-500

Max. Capacity 100g 500g

Readability 0.01g 0.1g

Min. Capacity 0.03g 0.2g

Power 2 x AAA Alkaline Batteries

Dimensions 3.8 x 3.8 x 1.3”

Platform Dimensions 2.0 x 3.0”

XII. Capacity/Readability Charts

AT-100 AT-500

100g x 0.01g

3.537oz x 0.001oz

500ct x 0.05ct

1543gn x 0.1gn

500g x 0.1g

17.64oz x 0.001oz

16.08ozt x 0.001ozt

321.5dwt x 0.1dwt

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