AWS PNX-203, PNX-202, PNX-2002, PNX-1001, PNX-2001 Operating Manual

PNX & KGX Series

Copyright © 2013 American Weigh Scales, Inc.
All Rights Reserved. Rev. 1.0

Precision Balance

Models:

PNX-203
PNX-202
PNX-602
PNX-2002
PNX-1001
PNX-2001
PNX-6001

KGX-10
KGX-20

TARE

UNIT

MENU

PRINT

CAL

Parts and Setup .............................................................................................2

Getting Started ..............................................................................................4

Basic Operation .............................................................................................7

Basic Weighing ......................................................................................................................... 7

Calibration / Adjustment ......................................................................................................8

Application Modes ........................................................................................9

Counting Mode ........................................................................................................................9

Percentage Mode ..................................................................................................................10

Basic Settings ...............................................................................................11

Unit Settings............................................................................................................................11

Backlight Setting ...................................................................................................................12

Beep Setting ............................................................................................................................12

Communication Settings ............................................................................13

Balance Setup ..............................................................................................15

Auto-Zero Tracking Range .................................................................................................15

Stability Range .......................................................................................................................15

Sensitivity .................................................................................................................................15

Filtering .....................................................................................................................................15

Factory Restore ............................................................................................16

Print Data Format ..................................................................................................................16

Specications ...............................................................................................18

Table of Contents

1

2

Parts & Setup

SAFETY

To avoid damage to the device or personal injury, please read all operating
instructions carefully before use.

I Don’t use the balance under dangerous working conditions.

I Verify that the required input voltage on the power adapter matches your

locally supplied AC power.

I Turn o and unplug the balance when cleaning or if the balance will not

be used for more than one week.

I Turn o and unplug the balance before connection with other

equipment.

I Strong magnetic elds and static electricity can have an adverse eect on

the balance’s accuracy. If you need to weigh magnetized or statically
charged samples, use the underweighing hook to suspend the sample

below the balance.

SERVICE

− Use only authorized parts and accessories. We are not responsible for any

modications made to the device.

− Breaking the tamper evident seal inside the scale base will void the

warranty.

− For warranty service, contact AWS at 1-866-643-3444. There is a One Year

Limited Warranty starting from the date of purchase.

1. UNPACKING

− After unpacking the balance, please check to make sure there is no visible

damage. Notify the delivery company of any damages in shipping as
soon as possible.

− Please keep the original box and packaging to store the balance when

not in use or to send in for service. If packaging the balance for transport,
please remove the platform and draft ring rst, then secure the draft
chamber doors with tape.

3

Parts & Setup

2. PACKING LIST

Model No. Scale

Base

Calibration
Mass

AC
Adapter

USB
Cable

Weighing
Pan

Operating
Manual

PNX-203 1pc 1pc 1pc 1pc 1Set (2pcs) 1pc

PNX-202, PNX­602, PNX-2002,
PNX-1001, PNX­2001, PNX-6001

1pc 1pc 1pc 1pc 1pc 1pc

KG-10, KG-20 1pc 1pc 1pc 1pc 1pc

INSTALLATION

When selecting a location to use the balance, keep these tips in mind:

I Do not use the balance close to air vents or other sources of drafts such as

doors or windows.

I Do not expose the balance to extreme heat or cold. Keep the balance

away from direct sunlight which may cause it to heat up. Large
temperature uctuations may require recalibration of the balance.

I Avoid dust, dirt, and moisture which may accumulate on the weighing

sensors and cause a malfunction.

3. TEMPERATURE CHANGES

When moving the balance from a high temperature environment to a low
temperature environment (or vice versa), please allow the balance to
acclimatize to its new surroundings for two hours before using. Also, allow
sucient warm-up time after plugging in the balance. For warm-up times,
refer to the specications chart on page 9.

4

Getting Started

4. BALANCE ASSEMBLY

− Place the draft ring around the opening in

the center of the draft shield chamber.

− Place the platform on the central mounting

post.

5. LEVELING THE BALANCE

− The balance must be leveled whenever

changing locations. To adjust the level
condition, use the two adjustment feet at the
rear of the balance. Turn the adjustment feet
until the bubble on the spirit level is centered
within the bull’s-eye.

6. KEY EXPLANATION

Power Key

Turn the balance on or o.

Unit Key (Move Key)

Function 1: Change the current weighing unit.
Function 2: Move the cursor one digit to the left.

Menu Key

Function 1: Press to enter Counting Mode
Function 2: Press and hold for 5 seconds to enter the

system settings menu.
Function 3: Cycle through menu items. If there is only
one menu item, pressing will return to previous menu.
Function 4: Press and hold for 1 second to save and
exit system settings menu.

5

Getting Started

Cal Key (Enter / Zero Key)

Function 1: Press and hold for 5 seconds to enter

calibration. Press again to cancel calibration.

Function 2: Conrm menu setting.
Function 3: Remove any items from the weighing

platform then press to Zero the balance.

L Note: The balance has an automatic zero tracking (AZT) feature which

helps maintain a zero balance condition within the tolerances set in the
Zero Range Setting menu (Menu Code 4.1)

Print Key

Function 1: Send weighing data to the printer or other

device when the balance is congured to print on
demand (Menu Code 3.5 set to KEY).

Function 2: Increment the highlighted digit.
Function 3: Cycle through menu options.

Tare Key

Function 1: Tare the balance. Taring sets the weight of

an empty container to zero, so that the weight of the
contents (net weight) can then be measured.
Function 2: Exit the current menu without saving and
return to the previous menu.
Function 3: Press and hold for 1 second to exit the
current application mode (such as Density, Counting,
Animal Weighing Mode, etc).

L Note: Taring the balance subtracts the weight from the available

capacity. For example, on the PNX-203 (200g capacity), if you tare a 20g
container, you will have a remaining capacity of 180g.

6

Getting Started

Pieces
Menu Level / Date

Time

Weighing Result / Menu Item
Net Weight Indicator
Negative Indicator

Center of Zero Indicator
Tare Indicator
Stability Indicator
Unit Indicator

7. DISPLAY EXPLANATION

7

Basic Operation

8. BASIC WEIGHING FUNCTIONS

Preparation

− Turn the balance on: Press (ON/OFF) Key.

Warm up time:

I To ensure proper operation, allow the balance to warm up according to

the warm-up times listed in the chart below:

Model Warm-up Time (minutes)

PNX 10-20

KGX 10-20

INSTANCE

Basic Weighing (after warming up)

Action Description Display Status

Press [CAL]

1. Zero the balance.

2. If using a container or tray, place it on the
platform.
( example : 20g )

Press [TARE]

3. Press the Tare key to zero the weight of
the container or tray.

4. Place the sample in the container.
( example : 100g )

Calibration / Adjustment

I Note: Adjustment should only be performed under the following

conditions:

− Nothing on the platform

− Balance is properly zeroed and stable

8

Calibration

INSTANCE

Span Calibration (after warming up)

Action Description Display Status

1. Zero the balance.

Press and

Hold [ CAL ]

2. Press and hold the CAL key for 5 seconds
until the display shows “CAL” then release.

3. When the display ashes the calibration
value, place the required mass on the
platform. ( example : 200g )

4. When the value stops ashing, calibration is
complete. You may remove the calibration
mass.

Linear Calibration ( Advanced Users Only )

Action Description Display Status

1. Zero the balance.

Press and

Hold [ CAL ]

2. Press and hold the CAL key for 5 seconds
until the display shows “CAL”, then release.

Press and

Hold [ MENU ]

3. Press and hold the MENU key for 7
seconds until the display ashes “CAL”
again, then release.

4. When the display ashes the rst
calibration value, place the required mass
on the platform. (example : 200g)

5. When the value stops ashing, remove
the weight. The next calibration value
will be displayed. Place the mass on the
platform ( example : 170g )

6. Repeat Step 5 until the display shows
zero.

9

Application Modes

Application:

Counting Mode ( Menu Code: 1.1. )

The counting application mode can be used to count items of uniform weight. A

sample quantity of the items must rst be weighed to determine the average piece

weight. Any amount can then be placed on the scale to determine a count

.

Action Description Display Status Menu

Level

Press [ MENU ] 1. Press the MENU key briey.

1.

Enter Sample

QTY

2. Use the keypad to enter the sample
quantity that you will use:

1.1.1

− Press PRINT key to change the number to match

your sample qty.

( example : 20 pcs )

− You can also manually enter a custom amount

Press the UNIT key to move the cursor

Press the PRINT key to increment the number

3. Place a sample quantity on the
platform, matching the amount you
selected in the previous step.

Press [CAL] 4. Press CAL to conrm. The display will

change to show the current count.

5. Counting Mode Setup is complete.
You may now remove the samples
and place any quantity on the
platform. The display will show the
count. ( example : 100 pcs )

Press and

Hold [TARE]

6. Press and hold the TARE key for 2
seconds to exit Counting Mode.

10

Application Modes

Percentage Mode ( Menu Code: 1.4.1 )

The percentage weighing mode displays the result as a percentage of a reference

sample weight. You can also enter the weight in grams which you want to be 100%.

Action Description Display Status Menu

Level

Press and Hold

[ MENU ]

1. Press and hold the MENU key for 5
seconds.

1.

Press [CAL]

2. Press the CAL key to enter the
Application Mode menu. The counting
menu will be displayed.

1.1

Press [MENU]

Three Times

3. Press the MENU key three times to
change to Percentage Weighing.

1.4

Press [CAL] 4. Press CAL to enter the Percentage

Weighing mode.

1.4.1

Press [CAL]

5. Press CAL to begin weighing the
sample.

1.4.1.1

6. Place the sample on the platform
which will represent 100%

1.4.1.1

Press [CAL] 7. Press CAL to conrm the sample

weight, then remove the sample.

8. You may now place any weight on the
scale to determine its percentage.

Press and Hold

[TARE]

9. Press and hold the TARE key for 2
seconds to exit Percentage Mode.

Manual Input Method

Action Description Display Status Menu

Level

Do steps 1-4 then proceed as follows:

Press [ MENU ]

5. Press menu to change to Manual Input
mode.

1.4.2

Press [CAL]

6. Enter the value in grams that you want
to represent 100%

1.4.2.1

− Press the UNIT key to move the cursor

− Press the PRINT key to increment the number

Press [CAL] 7. Press CAL to conrm the value.

8. Place any item on the platform to
determine its percentage.

Press and Hold

[TARE]

10. Press and hold the TARE key for 2
seconds to exit Percentage Weighing.

11

Basic Settings

Unit Settings ( Menu Code: 2.2 )

The operator can disable any of the weighing units that they do not wish to be

displayed.

Action Description Display Status Menu

Level

Press and Hold

[ MENU ]

1. Press and hold the MENU key for 5
seconds.

1.

Press [MENU]

2. Press the MENU key to change to the
Basic Function Setup menu (BASE).

2

Press [CAL] 3. Press the CAL key to enter the Basic

Function Setup menu.

2.1

Press [MENU] 4. Press the MENU key to change to the

Unit Settings menu.

2.2

Press [CAL]

5. Press CAL key to enter the Unit
Settings menu. The Carat setting will
be displayed.

2.2.1.01

Press [PRINT] 6. Press the PRINT key to toggle the

Carat weighing unit on or o.

2.2.1.01

Press [MENU] 7. Press the MENU key to go to the next

weighing unit - Ounce.

2.2.1.02

Press [PRINT] 8. Press the PRINT key to toggle the

Ounce weighing unit on or o.

2.2.1.02

− Repeat Steps 7-8 to congure all weighing units: ct, oz, ozt, dwt,

GN, lb, N, dr, tlT, tls, tlH, T, T/A/R, /A/R, ms, bat, mom, /lb, kg

Press [CAL] 9. Press the CAL key to conrm

weighing unit settings.

Press [TARE]

Twice

10. Press the TARE key twice to return
to regular weighing mode.

12

Basic Settings

Backlight Setting ( Menu Code: 2.6 )

The operator can change the backlight settings:

Action Description Display Status Menu

Level

Press and Hold

[ MENU ]

1. Press and hold the MENU key for 5
seconds.

1.

Press [MENU] 2. Press the MENU key to change to the

Basic Function Setup menu (BASE).

2.

Press [CAL] 3. Press the CAL key to enter the Basic

Function Setup menu.

2.1

Press [MENU]

Five Times

4. Press the MENU key ve times to
change to the Backlight Settings
menu.

2.6

Press [PRINT] 5. Press the PRINT key to toggle between

the three backlight settings:

2.6

− Backlight ON - Backlight always on

− Backlight OFF - Backlight disabled

− Backlight Auto - Backlight turns on

automatically during weighing

Press [CAL] 6. Press the CAL key to conrm the

backlight settings and return to the
previous menu.

2.

Press [TARE]

Twice

7. Press the TARE key twice to return to
regular weighing mode.

Beep Setting ( Menu Code: 2.7 )

The operator can change the audible beep settings:

Action Description Display Status Menu

Level

Press and Hold

[ MENU ]

1. Press and hold the MENU key for 5
seconds.

1.

Press [MENU] 2. Press the MENU key to change to the

Basic Function Setup menu (BASE).

2.

Press [CAL] 3. Press the CAL key to enter the Basic

Function Setup menu.

2.1

Press [MENU]

Five Times

4. Press the PRINT key to toggle between
the beep on or o.

2.7

Press [CAL] 5. Press the CAL key to conrm the beep

settings and return to the previous
menu.

2.

Press [TARE]

Twice

6. Press the TARE key twice to return to
regular weighing mode.

13

Communication Settings

Communication Settings ( Menu Code: 3 )

This menu allows the operator to congure the communication settings of
the device.

Baud Rate Settings ( Menu Code: 3.1 )

Changes the data transfer rate

Device ID Number ( Menu Code: 3.2 )

Changes the number used to identify the device when communicating with
multiple balances.

FMT Setting ( Data Format ) ( Menu Code: 3.3 )

Changes the data format between ASCII or Modbus RTU

COM Setting ( Menu Code: 3.4 )

Changes method by which weight data is sent to a computer (USB)

PRT Setting ( Menu Code: 3.5 )

Changes method by which weight data is sent to a printer (RS232)

KEY Setting ( Menu Code: 3.5 )

Changes the PRINT key behavior

14

Communication Settings

Communication Settings ( Menu Code: 3 )

Action Description Display Status Menu

Level

Press and Hold

[ MENU ]

1. Press and hold the MENU key for 5
seconds.

1.

Press [MENU]

Twice

2. Press the MENU key twice to change
to the Communication Settings menu.

3.

Press [CAL] 3. Press the CAL key to enter the

Communication Settings Menu. The
baud setting will be displayed.

3.1

− Press the PRINT key to cycle between the baud rate settings:

12: 1200bps, 24: 2400bps, 48: 4800bps, 96: 9600bps

Press [MENU] 4. Press the MENU key to change to the

Device ID Number menu

3.2

− Press the UNIT key to move the cursor

− Press the PRINT key to increment the number (001-255)

Press [MENU] 5. Press the MENU key to change to the

Data Format menu

3.3

− Press the PRINT key to toggle between ASC (ASCII format) or RTU

(Modbus RTU format)

Press [MENU] 6. Press the MENU key to change to the

computer communication menu

3.4

− Press the PRINT key to cycle between the dierent options:

NON: turn o communication, CON: continuous output,
STY: output when stable, KEY: output when PRINT is pressed
SOFT: output by software command, TXXX: output every XXX sec.

Press [MENU] 7. Press MENU key to change to the

printer communication menu

3.5

− Press the PRINT key to cycle between the dierent options:

NON: turn o print, KEY: print when PRINT is pressed
SOFT: print by software command, TXXX: print every XXX seconds

Press [MENU] 8. Press the MENU key to the print key

setting menu.

3.6

− Press the PRINT key to cycle between the dierent options:

KEY-COM : Send data to computer when PRINT is pressed
KEY-PRT : Send data to printer when PRINT is pressed
KEY-ALL : Send data to both when PRINT is pressed

Press [CAL] 9. Press the CAL key to to conrm and

return to the previous menu.

3.

Press [TARE]

Twice

10. Press the TARE key twice to return
to regular weighing mode.

15

Balance Setup

Balance Setup ( Menu Code: 4 )

The Balance Setup menu can be used to congure the balance’s weighing
characteristics.

Auto Zero Tracking Range ( Menu Code: 4.1 )

Changes the range that the scale will automatically zero any drifts in weight.

Stability Range ( Menu Code: 4.2 )

Changes the amount of weight change that is allowed for the stability indicator to
remain on.

Sensitivity ( Menu Code: 4.2 )

Changes the scales sensitivity response.

Filtering ( Menu Code: 4.2 )

Changes ltering applied to the weighing result. For stable weighing conditions, you
may choose a lower lter setting. For unstable weighing conditions, use a higher lter

setting.

Action Description Display Status Menu

Level

Press and Hold

[ MENU ]

1. Press and hold the MENU key for 5
seconds.

1.

Press [MENU]

Three Times

2. Press the MENU key three times to
change to the Balance Setup menu
(SETUP).

4.

Press [CAL] 3. Press the CAL key to enter the Balance

Setup menu. The Auto Zero Tracking
Range will be displayed.

4.1

− Press the PRINT key to change the auto zero range:

0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0

Press [MENU] 4. Press the MENU key to change to the

Stability Range menu.

4.2

− Press the PRINT key to change the stability range:

0.5, 1.0, 1.5, 2.0, 2.5, 3.0

Press [MENU] 5. Press the MENU key to change to the

Sensitivity menu.

4.3.

− Press the PRINT key to change the sensitivity: 1-7

Press [MENU] 6. Press the MENU key to change to the

Filtering menu.

4.4.

− Press the PRINT key to change the ltering: 1-7

Press [CAL] 7. Press the CAL key to to conrm and

return to the previous menu.

4.

Press [TARE]

Twice

8. Press the TARE key twice to return to
regular weighing mode.

16

Factory Restore

Factory Restore ( Menu Code: 5 )

To reset the balance back to factory settings:

Action Description Display Status Menu

Level

Press and Hold

[ MENU ]

1. Press and hold the MENU key for 5
seconds.

1.

Press [MENU]

Four Times

2. Press the MENU key four times to
change to Factory Conguration
menu. (CONFIG)

5.

Press [CAL] 3. Press the CAL key to enter the Basic

Function Setup menu.

5.1

− Press the UNIT key to move the cursor

− Press the PRINT key to increment the number

− Enter the code: 8888

Press [CAL] 4. Press the CAL key to conrm and

return to the previous menu

5

Press [TARE]

Twice

5. Press the TARE key twice to return to
regular weighing mode.

Print Data Format

TYPE: 20002
ID: 1
TEMP: 26.8C
BAT: FULL(EXT)

----------------------­MODE:NORMAL
REF: 1000.00g
STATUS:STEADY
TARE:NONE
ZERO:NATURAL
WT:0.00G

----COMPLETE---­SIGNATURE:

Conguration Code
Device ID
Ambient Temperature
Power Status
Division
Application Mode
Calibration Mass
Stability Status
Tare Status
Zero Status
Weight Result
End of Data
Signature

17

Specications

Unit Conversions

Unit
Symbol

Unit Conversion Rate Unit Symbol Unit Conversion Rate

g Gram 1 tls Singapore Tael 0.02645544638

ct Carat 5 T Tola 0.08573532418

oz Ounce 0.03527396200 T Tola 0.08573532418

ozt Troy Ounce 0.03215074700 T/A/R tola / anna / rati

T.A.R.

dwt Pennyweight 0.64301493100 /A/R tola / mna / rati

T.M.R

GN Grains 15.43235835000 ms Mesghal 0.21700000000

lb Pound 0.00220462260 bat Baht 0.06578947437

N Newton 0.00980654189 mom Momme 0.26670000000

dr Dram 0.56438222222 /lb Parts Per Pound 1.12876677120

tlT Taiwan Tael 0.02666666000 kg Kilogram 0.00100000000

Specications

Model Capacity Readability Repeat-

ability

Linearity Oper.

Temp

Pan Size Overall

Dimensions

Warm-up
Time

PNX-203 200g 0.001g ±2d ±2d 55-82°F Ø 3.1 in. 11.6 x 8.2 x

11.4 in.

10-20 min.

PNX-202 200g 0.01g ±1d ±2d 41-95°F Ø 5.2 in. 11.6 x 8.2 x

3.5 in.

10-20 min.

PNX-602 600g 0.01g ±1d ±2d 41-95°F Ø 5.2 in. 11.6 x 8.2 x

3.5 in.

10-20 min.

PNX-2002 2000g 0.01g ±2d ±3d 41-95°F Ø 5.2 in. 11.6 x 8.2 x

3.5 in.

10-20 min.

PNX-1001 1000g 0.1g ±1d ±2d 41-95°F Ø 5.2 in. 11.6 x 8.2 x

3.5 in.

10-20 min.

PNX-2001 2000g 0.1g ±1d ±2d 41-95°F 6.6 x 6.6 in. 11.6 x 8.2 x

3.5 in.

10-20 min.

PNX-6001 6000g 0.1g ±1d ±2d 41-95°F 6.6 x 6.6 in. 11.6 x 8.2 x

3.5 in.

10-20 min.

Model Capacity Readability Repeat-

ability

Linearity Oper. Temp Pan Size Overall

Dimensions

Warm-up
Time

KGX-10 10,000g 0.1g ±2d ±2d 41-95°F 8.0 x

11.6 in.

13.5 x 8.8 x
13 in.

10-20 min.

KGX-20 20,000g 0.1g ±2d ±2d 41-95°F 8.0 x

11.6 in.

13.5 x 8.8 x
13 in.

10-20 min.

PNX & KGX Series

Copyright © 2013 American Weigh Scales, Inc.
All Rights Reserved. Rev. 1.0

Precision Balance

Models:

PNX-203
PNX-202
PNX-602
PNX-2002
PNX-1001
PNX-2001
PNX-6001

TARE

UNIT

MENU

PRINT

CAL

TARE

UNIT

MENU

PRINT

CAL

TARE

UNIT

MENU

PRINT

CAL