AWS PS-25 Manual de usuario
American Weigh Scales
PS-25 (55lb x 0.02lb)
User Manual
PS-25
Copyright © 2010 American Weigh Scales, Inc.
All rights reserved. Rev. 2.3
PS-25
Introduction
Thank you for purchasing the American Weigh PS-25 digital
postal 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,freefromvibrations
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.
• Checkthebatteriesrstifyouarehavinganytroublewithyour
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.Platform
3.AC-Adapter
4.AA Batteries (x2)
II.Key Description
III. Battery Installation
1.Beforeusingthescaleforthersttime,checkthebattery
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.
55lb x 0.01lb
25kg x 2g
AWS-POSTAL
TARE MODE ON/OFF
HOLD
55lb x 0.01lb
25kg x 2g
AWS-POSTAL
TARE MODE ON/OFF
HOLD
TARE
Key
MODE
Key
ON/OFF
Key
HOLD Key
PS-25
IV. Operation
1.Placethescaleonaat,levelsurfaceandpresstheON/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. Hold Feature
1.Tousetheholdfeature,rstplaceanitemonthescale
platform.
2.Press the HOLD button located on the side of the scale.
3.The display will show HOLD and the weight will be held on
the display, even after the item is removed. This allows you to
record the weight of oversized boxes that cover the display.
4.To return to normal weighing, press the HOLD key again. The
HOLD indicator will turn off.
VI. 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.
• PS-25 Units: lb (pound), kg (kilogram), kg:g (kilogram:gram),
lb:oz (pound:ounce)
VII. 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.Youmaynowllthecontainerwiththequantitytobeweighed.
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.
VIII.Calibration (Advanced Users Only)
Calibration and adjustment are performed at the factory. Only
trained technicians should perform calibration and adjustment
if the scale is not weighing properly. Do not proceed with
calibration without the proper 10kg weight with class M2
or better or you could cause your scale to be inaccurate.
Calibration is not covered under warranty.
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
PS-25 4g 10kg OIML M2
IX. Adjustment (Advanced Users Only)
1.Press and hold the MODE key until the display shows “CAL”.
2.Press the MODEkeyagain.Thedisplaywillash“CAL”
followed by the calibration weight value (see chart).
3.Place the required calibration weight on the center of the
platform.
4.The display will show “PASS” then return to normal weighing
PS-25
mode. Calibration is complete!
X. Troubleshooting
• Problem: Scale will not turn on
• Solution: Check the batteries or AC adapter
• Problem: Displayedweightuctuatesrandomly
• Solution: Make sure your workspace is stable and
freeofanyaircurrents,vibration,ormagneticelds
• 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.O-LD - Maximum capacity exceeded. Remove the extra weight
to avoid damaging the load cell.
3.L - Batteries are low. Replace the batteries.
PS-25
Max. Capacity 25kg / 55lb / 55lb:0.0oz
Readability 2g / 0.02lb / 0.2oz
Min. Capacity 6g / 0.2oz
Power 2 x AA Batteries or AC Adapter
Platform Dimensions 8.0 x 8.0 x 2.8 in.
Warranty 10 Year Limited Warranty
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