TScale AW20 User manual

Operation Manual
AW20
Weighing Scale
A1

AW20 Series Weighing Scale Operation Manual
CONTENTS
1. PRECAUTIONS..............................................................................................................- 1 -
2. PRODUCT DESCRIPTION.............................................................................................. - 3 -
2.1 General.............................................................................................................. - 3 -
2.2 Over View.......................................................................................................... - 4 -
2.3 Interfaces...........................................................................................................- 5 -
3. INSTALLATION............................................................................................................. - 6 -
3.1 Unpacking..........................................................................................................- 6 -
3.2 Installation.........................................................................................................- 6 -
3.3 Leveling..............................................................................................................- 6 -
3.4 Power Connection............................................................................................. - 7 -
3.5 Rechargeable battery （optional）..................................................................- 7 -
3.5.1 Charging the battery.............................................................................. - 7 -
3.5.2 Battery replacement.............................................................................. - 7 -
4. DISPLAY&KEYS FUNTION............................................................................................. - 9 -
4.1 Key Board.......................................................................................................... - 9 -
4.2 Indication Description..................................................................................... - 11 -
5. OPERATION................................................................................................................- 13 -
5.1 Power On/Off.................................................................................................. - 13 -
5.2 Log in............................................................................................................... - 13 -
5.3 Zero Setting..................................................................................................... - 14 -
5.4 Tare..................................................................................................................- 14 -
5.4.1 Semi-automatic tare.............................................................................- 14 -
5.4.2 Automatic tare..................................................................................... - 14 -
5.4.3 Pre-set tare...........................................................................................- 15 -
5.5 Weighing Operation........................................................................................ - 17 -
5.6 Weighing Units Conversion............................................................................. - 18 -
5.7 PLU Information Store and Recall................................................................... - 19 -
5.7.1 Store Indirect PLU information.............................................................- 19 -
5.7.2 Recall indirect PLU................................................................................- 20 -
5.7.3 Store Direct PLU information............................................................... - 20 -
5.7.4 Recall direct PLU...................................................................................- 21 -
5.8 Parts Counting................................................................................................. - 22 -
5.8.1 Manual Sampling for counting procedure........................................... - 22 -
5.8.2 To input the known average piece weight of item............................. - 25 -
5.8.3 Automatic Part Weight Updates......................................................... - 26 -
5.9 Percentage Weighing...................................................................................... - 26 -
5.10 Accumulation................................................................................................ - 28 -
5.11 Printing......................................................................................................... - 32 -
5.11.1 Label Printing......................................................................................- 32 -
5.11.2 Receipt Printing.................................................................................. - 33 -

AW20 Series Weighing Scale Operation Manual
5.12 Tolerance checking........................................................................................- 33 -
5.12.1 Beep Mode......................................................................................... - 33 -
5.12.2 Limits setting for target weight..........................................................- 34 -
5.12.3 Limits setting for target quantity....................................................... - 35 -
5.12.4 Limits setting for target percentage.................................................. - 36 -
5.12.5 Tolerance Checking Mode..................................................................- 37 -
5.13 Backlight Setting............................................................................................- 38 -
5.14 Auto Power Off..............................................................................................- 39 -
5.15 Animal Weighing........................................................................................... - 40 -
5.16 Peak Hold.......................................................................................................- 41 -
6. CALIBRATION.............................................................................................................- 43 -
6.1 Normal Calibration.......................................................................................... - 43 -
7. TECHNICAL DATA.......................................................................................................- 45 -
7.1 General Specification...................................................................................... - 45 -
7.2 Overall Dimension........................................................................................... - 46 -
8. ERROR CODES............................................................................................................- 47 -
9.MAINTENANCE........................................................................................................... - 48 -
9.1Preventive Maintenance.................................................................................. - 48 -
9.2 Cleaning housing............................................................................................. - 48 -
10.TROBULE SHOTTING.................................................................................................- 49 -

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1. PRECAUTIONS
WARNING
DISCONNECT ALL POWER TO THIS UNIT BEFORE
INSTALLING, CLEANING, OR SERVICING. FAILURE TO DO SO
COULD RESULT IN BODILY HARM OR DAMAGE THE UNIT.
CAUTION
Permit only qualified persons to service the instrument
Before connecting or disconnecting any components, remove the power.
Failure to observe these precautions bodily harm or damage to or destruction of the
equipment.

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SAFTEY INSTRUCTION
The weighing scale is a precision electronic instrument, handle it
carefully.
The device must only be operated by personnel trained in the
operation of this equipment.
The operating personnel must read and understand the safety
instructions in these operating instructions.
To prevent any accident, only qualified service personnel is
authorized to open this device!
Verify the local voltage and receptacle type are correct for the
scale.
Only use original adaptor, other could cause damage to the scale.
Pluggable equipment must be installed near an easily accessible
socket outlet.
To prevent load cell ,Avoid load the weight exceed the maximum
capacity on the platform
To prevent the keys, Do not scratch the keypad with a sharp
object
Avoid unstable power sources. Do not use near large users of
electricity such as welding equipment or large motors.
Avoid sudden temperature changes, vibration, wind and water.
Avoid heavy RF noise.
Do not install the scale in direct sunlight.

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2. PRODUCT DESCRIPTION
2.1 General
The AW20 Series weighing scale include full-fledged features, interfaces,it can be developed to
meet the Industrial applications.
Major Features
4.3”color display with graphic interface
Multi-user permission management
Weighing units conversion (kg/g/lb/oz/tj/hj/t)
37 membrane keyboard
Counting by sampling or entering unit weight; percentage weighing; tolerance checking
Accumulation mode with manual accumulation, auto load accumulation and auto
unload accumulation
Up to 300 PLUs capacity ,8 direct PLUs ,supported to display alphanumeric PLU
information
Reports Management: Daily, weekly,Monthly, Product reports.
Multiple language selection
Different methods of communications: RS232 , Ethernet, Wi-Fi, Bluetooth, USB2.0 Host
for Scanner interface
Data management with backup and restore
Back office management software could update to the indicator with networking
All options are controlled from menu. No spec list provided and easy to operate.

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2.2 Over View
1
2
3
4
5
6

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2.3 Interfaces
AW20 Series is equipped with 1xRJ45, 1xUSB2.0,and 1 x RS232 interface
No
Interface
Description
1
RJ45
Support 10M/100M Ethernet
2
USB2.0
For USB disk/ scanner /data transfer,don’t use for charging other device
3
RS232
For connecting computer / printer/alarm light/ Remote display/Second
platform
4
RS485
For connecting computer
1. Stainless steel
2. 4.3”LCD display
3. Keyboard
4. Level bubble
5. Adjustable leveling feet
6. AC adapter jack
3
4
1
2

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3. INSTALLATION
3.1 Unpacking
When you receive the scale, inspect it to make sure that it is not damaged and that all are parts are
included:
Remove the scale from the carton.
Remove the protective covering. Store the packaging and to use if you need to transport
the scale later.
Inspect the scale for damage.
Make sure all components are included.
1. Scale
2. Adaptor
3. Manual
4.Stainless steel pan
3.2 Installation
Remove transport lock from bottom of the scale base
Place the scale on a level surface
Install the stainless steel pan on top of the housing
3.3 Leveling
The scale is equipped with a level indicator located left side of keyboard
Use the adjustable leveling feet located on the bottom of the scale until the bubble appears
in the center of the indicator.
Level bubble

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3.4 Power Connection
Connect the adaptor pin in to the indicator adaptor jack.
Adaptor jack is locating bottom of the scale.
Adaptor connects into your AC power socket. Plugable equipment must be installed near an
easily accessible socket outlet with a protective ground/ earth contact.
3.5 Rechargeable battery （optional）
Note: Please charge the battery before using the scale for the first time.
The low voltage battery symbol on the weight display indicates that the battery is getting
low. It’s time to charge the battery with the AC power. If scale goes on being used without
proper charging, <BAT-LOW> words will flicker on the display.
Approximately 30 minutes of instrument usage are left; afterwards it will shut off
automatically.
Please use the supplied battery charger for charging the battery immediately,or scale
cannot be used.
3.5.1 Charging the battery
Before the first use, the battery should be charged by connecting it to the mains power
supply for at least 5 hours.
When the scale is plugged into the mains power the internal battery will be recharged.
Verify that the AC power socket outlet is properly protected.
There is an battery symbol at the upper side of display to indicate the status of battery
charging.
Fully charged
Low voltage
Charging
3.5.2 Battery replacement
1 Place the indicator display down on horizontal desktop (1).
2 Open the battery cover along the arrow direction (2).
3 Take out the foam next to the battery (3).
AC Adapter Jack

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4 Disconnect the lithium battery connector (4).
5 Replace the new lithium battery and connect the battery connector.
6 Put the foam next to the battery and close the battery cover
2
3
4
1

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4. DISPLAY&KEYS FUNTION
4.1 Key Board
Icon
Name
Description
On/OFF key
Press the key to turn the scale on
Long press to turn the scale off
Print key
Used to print weighing data in normal weighing mode
Used to print reports when in report mode
Percentage key
Used to enter percentage mode in normal weighing mode
Unit Weight key
Used to store the known average piece weight of item
Long press to change the average piece weight value of
item
Sampling key
Used to enter the counting operation
Product key
Used to recall product information
Long press to search product information from list
Menu key
Used to enter parameter setting
Long press to check the set parameter information
Local/Remote key
Used to change weighing units
Shift to capital letter / small letter when entering characters
Long press to switch local scale to remote scale
Reserved key
(Reserved function)

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to
Numeric and
alphabetic keys
Input number in weighing mode
Input numeric and alphabet in parameters and PLU setting
Decimal point key
Used to input decimal point
Clear key
Used to clear selected products and numeric keys
When entering characters, short press to clear one bit, long
press to clear all
Zero key
Used to zero the scale.
Long press to exit other modes (counting or percentage
mode) and back to weighing mode
Tare key
Used to perform a tare function, Subtracts weights.
Limit key
Used to enter check weighing mode
Long press to set HI and Low limits
Accumulation key
Used to store the accumulation weights in memory
Used to recall accumulation records
to
Direct PLU
To recall direct PLU
Long press to store direct PLU
to
Pre-tare key
To recall the pre-tare value
Long press to store pre-tare value
Keys in the parameter settings
Used as confirm key ,to enter into the function and parameter settings
Scroll up to enter different item page
Scroll down to enter different item page
Escape from the parameter settings and return to the normal weighing mode

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4.2 Indication Description
Icon
Name
Description
Stable indicator
Indicates the scale weight is stable.
Zero indicator
Indicates the scale is at zero.
Tare indicator
Indicates the scale is in tare operation
Battery symbol
Current remaining power
Battery shortage
Indicates the battery gets low
Battery charging
Indicates the battery is charging
User name
Indicates current operator account
Net weight
Indicates scale is displaying the net weight.
Tare weight
Indicates scale is displaying the tare weight.
Gross weight
Indicates scale is displaying the gross weight.
Lack of unit weight
Indicates piece below minimum weight of piece
Lack of sample
Indicates number of parts placed on balance too small
Animal indicator
Indicates in animal weighing mode
Peak hold indicator
Indicates in peak hold weighing mode
PLU number
Indicates scale is displaying the PLU number.
Product name
Displays product name
Count
Displays accumulated counts
1 Measurement information
2 Weight display
3 Product Information display
4Range Circle Display Bar
1
2
3
4

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Total
Displays accumulated total weight
Range Display Bar
Displays the range of capacity

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5. OPERATION
5.1 Power On/Off
Press key to switch power-up, it will be heard “beep” sound ,the scale show company logo,
and come to normal weighing mode.
Hold key 1.5 seconds to switch off the scale.
5.2 Log in
It allows multiple users to operate the same indicator
1 When power is on ,it may be asked to input the account
and password to log in.
2 Input the account by using numeric keys ,
press key to confirm.
3 Input the password by using numeric keys ,
press key to confirm.
4 Display show log in success and come to normal weighing mode.
Note:
1. To enable Login function, see parameters 1.System settings >4. Require login > Yes.
2. Account and password need to be set on the scale in advance, the scale needs to restart after
setting up to enter the login .
3. Technician account number is 1000, password is 000000.

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5.3 Zero Setting
Zero setting allows to do by pressing key, only it’s possible when the load receptor is not in
motion.
5.4 Tare
5.4.1 Semi-automatic tare
The indicator is provided with a semi-automatic subtractive tare.
The weight of any container can be tared by pressing button so that with subsequent
weighing the net weight of the object being weighed is always displayed.
Tare Operation:
1 Load weight on the platform.
2 Press key. Zero is displayed, and tare is subtracted.
3 Remove weight on the platform. Tared weight is displayed. It can set only one tare value. It will
be shown with a minus value.
4 This Tare value can be cleared by pressing key, when there is no load on the platter.
This tare entry cannot take place, if the platter is in in motion.
5.4.2 Automatic tare
The weight of any container can be tared automatically ,to enable automatic tare function, see
parameters 2.ADVANCED SETTINGS >3. TARE SETTINGS > 1.AUTO TARE >ON.
1 Load a container on the platform, it will be heard a “beep”sound.
2 ZERO indicator and TARE indicator appears.
3 Zero is displayed in NET window,the subtracted value appears in the tare window.
4 Load the weight in the container,the NET window shows net value with a “beep”sound.
5 Remove weight from the platform. Tared weight is displayed. It can set only one tare value.
6 Remove the container from the platform,display show zero with a “beep”sound.

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5.4.3 Pre-set tare
5.4.3.1 Store Pre-set Tare
Direct pre-set tare：
1 Hold T key （to ）2 seconds in normal
Weighing mode,the digits in Tare window will be active.
2 Using numeric keys to input the tare value.
3 Press key to confirm,the preset tare value appears.
Indirect pre-set tare：
The scale has a pre-set tare function,it can be combined with PLU information,the pre-set tare
value can be dedicated to the products in the PLU individually ,using numeric keys see parameters
3.PRODUCT INFO > 2. ADD/EDIT PRODUCT > 3.TARE