LW Measurements PRW User Manual

PRW series

Bench Scale

User’s guide

UGPRW-E1.01

PRW serial bench scale user’s manual

Table of Contents

SECTION 1 INTRODUCTION……………………………………………………………1
SECTION 2 SPECIFICATIONS……………………………………………………..……2
SECTION 3 INSTALLATION……………………………………………………………….3
SECTION 4 KEY DESCRIPTIONS………………………………………………………5
SECTION 5 DISPLAYS…………………………………………………………………….6
SECTION 6 OPERATION…………………….……………………………………….…..7

6.1 Zeroing the display………………………………………………………………….7

6.2 Taring……………………………………………………………………………..…….7

6.3 Weighing a sample…….………………………………………………….………….7

6.4 Check-weighing…………………………………………………………………….8

6.5 Accumulated total……………………………………………………………………….9

SECTION 7 PARAMETERS………………………………………………………………10
SECTION 8 BATTERY OPERATION………………………………………………..…13
SECTION 9 RS-232 OUTPUT…………………………………………………………..14
SECTION 10 CALIBRATION……………………………………………………..……..16
SECTION 11 ERROR CODE…………………………………………………………17
SECTION 12 TECHNICAL PARAMETES…………………………………………….18

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PRW serial bench scale user’s manual

SECTION 1 INTRODUCTION

The PRW series of bench scale provides an accurate, fast and versatile series of
general purpose weighing scale with units conversion and check-weighing functions.

All the keypads are sealed, color coded membrane switches and the displays are
large easy to read liquid crystal type displays (LCD). The LCD’s are supplied with a
backlight.

All units include automatic zero tracking, units conversion ,audible alarm for pre-set
weights, and an accumulation facility that allows the individual weights to be stored
and recalled as an accumulated total.

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PRW serial bench scale user’s manual

Model

PRW-I

PRW-II

Resolution

1/3,000

1/6,000

Interface

RS-232 Output Optional

Stabilisation Time

1 Seconds typical

Operating Temperature

0°C - 40°C / 32°F - 104°F

Power supply (external)

115 / 230 Vac, 120 / 240 Vac, 50/60Hz, 10 watts

Calibration

Automatic External

Display

6 digits 22mm LCD display, attached backlight

indicator Housing

ABS Plastic,

Zero range

0mV~5mV

Signal input range

0~15mV

ADC

Sigma delta

Internal counts

600,000

ADC update

Max 60 times /second

Load cell drive voltage

Max 5V/150mA

Load cells

Up to four 350 ohms cells

SECTION 2 SPECIFICATIONS

-2-

EXC+

SEN+

SEN-

EXC-

SIG+

SIG-

SHIELD

5
5
3
2
4
4
1

LOAD CELL

PRW serial bench scale user’s manual

SECTION 3 INSTALLATION

GENERAL INSTALLATION

The scales should be sited in a location that will not degrade the accuracy.

Avoid extremes of temperature. Do not place in direct sunlight or near air conditioning
vents.

Avoid unsuitable tables. The tables or floor must be rigid and not vibrate. Do not
place near vibrating machinery.

Avoid unstable power sources. Do not use near large users of electricity such as
welding equipment or large motors.

Avoid high humidity that might cause condensation. Avoid direct contact with water.
Do not spray or immerse the scales in water.

Avoid air movement such as from fans or opening doors. Do not place near open
windows.

Keep the indicator clean.

Do not stack material on the scales when they are not in use.

INSTALLATION OF PRW SERIES

Please make the load cell connector from the load cell follow the drawing below
Attach the AC power adapter to the connector on the back of the indicator.
If you use PRW for a platform scale, you can use attached indicator bracket, this
indicator bracket is design for 38mm pole.

Load cell connect as below( 5pin air connecter)

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PRW serial bench scale user’s manual

SECTION 4 KEY DESCRIPTIONS

Zero

Set the zero point for all subsequent weighing. The display shows zero.
A secondary function , of "Enter" key when setting parameters or other functions.

Tare

Tares the scale. Stores the current weight in memory as a tare value, subtracts the
tare value from the weight and shows the results. This is the net weight. Entering a
value using the keypad will store that value as the tare value.
A secondary function , of incrementing the active digit when setting a value for
parameters or other functions.

G/N

Press the key , the scale can to select gross weight or net weight after you tare a
weight.
Secondary function , In the setting mode, this key used to move active digits
right.

M+

To print the results to a PC or printer using the optional RS-232 interface. It also
adds the value to the accumulation memory if the accumulation function is not
automatic.

Secondary function ( C or ) , is to act as a clear key or to move active digits
left when setting values for parameters or other functions.

UNIT or U

Press this key to select the weight unit. Move the active digit left when setting values
for other functions.
Secondary function (ESC) , is to return to normal operation when the scale is in a
parameter setting mode.

ON/ OFF

Turn on or off the power.

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PRW serial bench scale user’s manual

Battery low

stable

Check weighing

Weighing unit

BACK

SECTION 5 DISPLAYS

The LCD display will show a value and a unit to the right of the digits.
In addition there are labels for TARE, GROSS weight, Zero and for Low battery

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PRW serial bench scale user’s manual

SECTION 6 OPERATION

6.1 Zeroing The Display

You can press the ZERO key at any time to set the zero point from which all other
weighing and counting is measured, within 4% of power up zero. This will usually
only be necessary when the platform is empty. When the zero point is obtained the
display will show the indicator for zero.

The scale has an automatic rezeroing function to account for minor drifting or
accumulation of material on the platform. However you may need to press the ZERO
key to rezero the scale if small amounts of weight are shown when the platform is
empty.

6.2 Taring

Zero the scale by pressing the ZERO key if necessary. The zero indicator will be on.

Place a container on the platform, a value for its weight will be displayed.

Press the TARE key to tare the scale. The weight that was displayed is stored as the
tare value and that value is subtracted from the display, leaving zero on the display.
The "TARE" indicator will be on. As product is added only the weight of the product
will be shown. The scale could be tared a second time if another type of product was
to be added to the first one. Again only the weight that is added after taring will be
displayed.

When the container is removed a negative value will be shown. If the scale was tared
just before removing the container this value is the gross weight of the container plus
all product that was removed. The zero indicator will also be on because the platform
is back to the same condition it was when the ZERO key was last pressed.

6.3 Weighing a sample

To determine the weight of a sample first tare the empty container then place the
sample in the container. the display will show the weight and the units of weight
currently in use.

6.4 Check-Weighing

6.4.1 About check-weighing

Check-weighing is a procedure to cause an alarm to sound when the weight on the
scale meets or exceeds values stored in memory. The memory holds values for a

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PRW serial bench scale user’s manual

high limit and a low limit.

Check mode 2:

When check range, the display will show OK and the beeper will sound when the
weight is between the limits.

Check mode 3:

When check range, the display will show OK and the beeper will sound when the
weight is out of the limits.

6.4.2 Set limits
Press the UNIT key and M+ key together in the weighing mode, it will display “F0

H-L”, press ZERO key to enter, use TARE key to select “SET HI” or “SET LO”, press
ZERO key to enter, use G/N key to move active digit, use TARE key to change value,

use UNIT key to clear value. After you enter the value, press ZERO key to sure,
press UNIT key to escape.

6.4.3 Set check weighing mode
Press the UNIT key and M+ key together in the weighing mode to enter setting mode,
press TARE until display show “F4 OFF”, press ZERO key to enter, press TARE key

until display show “BEEP”, press ZERO key to enter, press TARE key to select BP
2(check mode 2), BP3 (check mode 3), BP1(no beep), press ZERO key to sure,

press UNIT key to escape.

6.4.4 NOTE

The weight must be greater than 20 scale divisions for the check-weighing to
operate.

To disable the Check-Weighing function enter zero into both limits by pressing the
UNIT key and M+key together in the weighing mode, then the current limits are
shown. then set zero and store the zero values.

6.5 Accumulated Total

6.5.1 Note
The scale can be set to accumulate manually by pressing the M+ key. See the
PARAMETERS Section for details of selecting the method using function "F5 P RT".
The accumulation function is only available when weighing.

Please note before every accumulate operate, scale need return to zero, and only
press M+ key when stable, when weight less than 20d, accumulate operate will be
invalid.

6.5.2 Accumulate operate
The weight displayed will be stored in memory when the M+ key is pressed and the

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PRW serial bench scale user’s manual

weight is stable.

The display will show "ACC 1" and then the total in memory for 2 seconds before
returning to normal. (after do accumulate operate, M+ indicator will turn on) If the
optional RS-232 interface is installed the weight will be output to a printer or PC.

Remove the weight, allowing the scale to return to zero and put a second weight on.
Press the M+ key, the display will show "ACC 2" and then the new total.

Continue until all weights have been added.

*Note: after you change weighing unit, accumulate value will be clear.

6.5.3 memory recall
To view the totals in memory press M+ key in zero point (ZERO indicator on).

6.5.4 memory clear
To clear the memory, just press UNITkey

6.5.5 automatically accumulate
At first, you need set scale to auto accumulate mode, Press the UNIT key and M+
key together in the weighing mode, it will display “F0 H-L”, press TARE key until
display show “f5 prt”, press ZERO key to enter, press TARE key to select “p auto”,
press ZERO key to sure, then you need set baud rate and M+ format, print type, see
detail in SECTION 7

After you set, AUTO indicator on.

Press weight on platform, after stable, you will hear beep on twice, you can add or
remote weight now, scale will beep on again after stable, at last, remove all weight on
platform, the last weight value will store in memory

6.6 Animal Scales
PRW can set as an animal scale, you just need set P4 CHK to mode2, see detail in
SECTION12.
Let the animal on the platform, after some second, if reading data change not a lot,
you can hear beep sound and reading data will be locked.

In reading data lock mode, if you add/remove big weight, display will still update and
lock new reading data.

6.7 subtration scale

This is used for hopper scale, you need set auto zero range to 0 (see detail in

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PRW serial bench scale user’s manual

SECTION 7) and set scale mode to mode3/mode4 (see detail in SECTION12)

Turn on power, scale will show “err4”, then show current total weight on platform,
press TARE key, display show 0.00, then remove goods in hopper, display will show
it’s weight in “-“ mode, press M+ key, scale will print out weighing ticket,
mode3/mode4 only different is print format.

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PRW serial bench scale user’s manual

FUNCTION

SUB-FUNCTION

DESCRIPTION

DEFAULT
VALUE

F0 H-L
SEt Lo

Set a value for the Low limit.

000.000

SEt HI

Set a value for the High Limit.

000.000

F1 toL

to CLr

Clears the accumulation memory
without printing the results.

to P-C

prints the Accumulation memory
total and then clears the memory.

to Prt

prints the Accumulation Total, does
not clear the memory.

F2 u nt

Sets the displayed unit, you can
press TARE key to set ON or OFF,
press ZERO key to sure

kilogram,
g,lb,oz,tl,t
h.

SECTION 7 PARAMETERS

The scale has 6 parameters that can be set by the user plus a method of entering the
calibration section.

Press the UNIT key and M+ key together in the weighing mode.

The display will show the first function, "F0 H-L".
Pressing the TARE key will cycle through the other functions.
Pressing ZERO will allow you to set the function. It may be necessary to either use

TARE or set a value using the G/N key to move the active digit and then using the
TARE key to increment a digit, followed by the ZERO key to enter the value. Use
the UNIT key to leave a parameter unchanged.

For example when the display shows “F0 H-L” press the ZERO key to begin.
The display will show “Set Lo”, press the ZERO key to set the low limit, or press the

TARE to skip to the next parameter, “Set Hi” for setting the high limit.

After pressing the ZERO key to set a limit, use the G/N keys to change the flashing
digit, then use the TARE key to increment the flashing digit. Continue to the next
digit and set it as needed.

When all digits have been set press the ZERO key to store the value. The display

will go back to the parameter just set, i.e. “Set Lo”. Advance to another parameter if

needed or press the UNIT key to return to weighing.

FUNCTION MENU SETTINGS

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PRW serial bench scale user’s manual

FUNCTION

SUB-FUNCTION

DESCRIPTION

DEFAULT
VALUE

F3 off

bL

Set the backlight to be on,
automatic or off,

EL on
EL Au

EL off

EL Au

bEEP

Set the beep mode.(check
weighing mode 2, check weighing
mode3, no beep)

F4 Prt

Set the RS-232 , at first set RS-232 working mode
(press TARE key to change, press ZERO key to sure)
P Prt: print weighing ticket when the M+ key is
pressed,
P Cont: send weighing data continuously, connect to
PC ,
ASK: ask and answer mode (bi-direction mode), connect
to PC.
Command “R”: send weighing data to PC
Command “T”: do tare operate
Command “Z”: do zero operate

P auto: auto M+ mode.
Sei re: also send continuously

Then set baud rate
After set working mode, display will show b xxx, this is
current baud rate, you select baud rate by TARE key ad
press ZERO to sure.

If you set printer (P PRT, P AUTO), then you can set print
out format.
Display will shows “PR x”, set the date/time M+ format,
Then display show “LAB x”, set gross/acc M+ format,
you can see detail below.
These parameter only available in MODE1(normal
mode), see detail in section 12.
Then set printer type,

TY-TP: mini ticket printer
TY 711: A711 label printer
LP-50: LP-50 label printer

P Prt

Prog

Pin

Enter the programming and calibration menus
by entering the correct password. See the
section 12.

FUNCTION MENU SETTINGS

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PRW serial bench scale user’s manual

Lab

prt

0 1 2

3

0

GS: 0.888kg

NT: 0.666kg
TW: 0.222kg
GW: 0.888kg

GS: 0.222kg
TOTAL: 0.222kg

NT: 0.222kg
TW: 0.666kg
GW: 0.888kg
TOTAL: 0.222kg

1

DATE: 04/06/06
GS: 0.888kg

DATE: 04/06/06
NT: 0.666kg
TW: 0.222Kg
GW: 0.888kg

DATE: 04/06/06
GS: 0.222kg
TOTAL: 0.444kg

DATE: 04/06/06
NT: 0.222kg
TW: 0.666kg
GW: 0.888kg
TOTAL: 0.444kg

2

TIME: 11/11/11
GS: 0.888kg

TIME: 11/11/11
NT: 0.666kg
TW: 0.222kg
GW: 0.888kg

TIME: 11/11/11
GS: 0.222kg
TOTAL: 0.666kg

TIME: 11/11/11
NT: 0.222kg
TW: 0.666kg
GW: 0.888kg
TOTAL: 0.666kg

3

DATE: 04/06/06
TIME: 11/11/11
GS: 0.888kg

DATE: 04/06/06
TIME: 11/11/11
NT: 0.666kg
TW: 0.222kg
GW: 0.888kg

DATE: 04/06/06
TIME: 11/11/11
GS: 0.222kg
TOTAL: 0.888kg

DATE： 04/06/06
TIME: 11/11/11
NT: 0.222kg
TW: 0.666kg
GW: 0.888kg
TOTAL: 0.888kg

4

NO.: 4
GS: 0.888kg

NO. : 4
NT : 0.666kg
TW: 0.222kg
GW: 0.888kg

NO.: 4
GS: 0.222kg
TOTAL: 1.000kg

No.: 4
NT: 0.222kg
TW: 0.666kg
GW: 0.888kg
TOTAL: 1.000kg

5

DATE: 04/06/06
NO.: 5
GS: 0.888kg

DATE: 04/06/06
NO.: 5
NT: 0.666kg
TW: 0.222kg
GW: 0.888kg

DATE: 04/06/06
NO.: 5
GS: 0.222kg
TOTAL: 1.222kg

DATE: 04/06/06
No.: 5
NT: 0.222kg
TW: 0.666kg
GW: 0.888kg
TOTAL: 1.222kg

6

TIME: 11/11/11
NO.: 6
GS: 0.888kg

TIME: 11/11/11
NO.: 6
NT: 0.666kg
TW: 0.222kg
GW: 0.888kg

TIME: 11/11/11
NO.: 6
GS: 0.222kg
TOTAL: 1.444kg

TIME: 11/11/11
No.: 6
NT: 0.222kg
TW: 0.666kg
GW: 0.888kg
TOTAL: 1.444kg

7

DATE: 04/06/06
TIME: 11/11/11
NO.: 7
GS: 0.888kg

DATE: 04/06/06
TIME: 11/11/11
NO.: 7
NT: 0.666kg
TW: 0.222kg
GW: 0.888kg

DATE: 04/06/06
TIME: 11/11/11
NO.: 7
GS: 0.222kg
TOTAL: 1.666kg

DATE: 04/06/06
TIME: 11/11/11
No.: 7
NT: 0.222kg
TW:: 0.666kg
GW: 0.888kg
TOTAL: 1.666kg

print out format form 1 (for TpuP printer)

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PRW serial bench scale user’s manual

SECTION 8 BATTERY OPERATION

The weighing indicator can be operated from the battery if desired. The battery life is
approximately 35 hours.

When the battery needs charging a symbol on the weight display will turn on. The
battery should be charged when the symbol is on. The scale will still operate for
about 10 hours after which it will automatically switch off to protect the battery.

To charge the battery simply plug into the mains power. The scale does not need to
be turned on.

The battery should be charged for 12 hours for full capacity.

In the LCD display has an battery indicater to indicate the status of battery charging.
When the scale is plugged into the mains power the internal battery will be charged.
When turn on the indicator,if the battery indicater is full then the battery has a full
charge. If it is half then the battery is nearly discharged and empty indicates the
battery should be charged.

As the battery is used it may fail to hold a full charge. If the battery life becomes
unacceptable then contact your distributor.

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PRW serial bench scale user’s manual

Date AND TIME The scale will be set date and time
S/N The number increments every time a new value is stored in memory

GW GW for gross weight, NT for net weight and a unit of weight

*************** A line of stars is shown
<lf> Includes 1 line feed
Date:
Time: 00:00
Total No: 3 Times of the accumulation memory
Total wt.: 0.447KG Weight of the accumulation memory
***************

Date: The scale hasn’t printed
Time: 00:00 The scale will be set time
Gross wt: 0.149KG GW for gross weight, NT for net weight and a unit of weight
Unit wt: 7.4257G The average piece weight computed by the scale
Quantity : 20PCS The number of parts counted
<If>
<If>

SECTION 9 RS-232 OUTPUT

The PRW Series of scales can be ordered with an optional RS-232 output.

9. 1 basic information
Specifications:

RS-232 output of weighing data
ASCII code
8 data bits
No Parity
Baud rate from 600bps to 9600bps

9. 2 normal print out
Data Format for normal weighing operations, parts counting or recalling of totals from
memory will all be different. Examples follow:

Normal Output

When parts counting the weight, unit weight and count will be printed.

When recalling the Total weight stored in the accumulation memory the output format
is:

9. 3 continuously output protocol
con1: weighing mode

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PRW serial bench scale user’s manual

-QTY UNIT-

，

-/

k g CR

LF

P C S

：

p c s

CR

LF

Head

er0

Head

er1

Head

er2

Head

er3

Weig

ht1

Weig

ht2

Weig

ht3

Weig

ht4

Weig

ht5

Weig

ht6

Tare1

Tare2

Tare3

Tare4

Tare5

Tare6

Termina

tor1

Termina

tor2

Header

0

Header

1

Weight

1

Weight

2

Weight

3

Weight

4

Weight

5

Weight

6

Weight

7

Unit1

Unit2

Status

Termina

tor1

Termina

tor2

-WEIGHT UNIT-

TERMINATOR

- QTY -

-HEADER1-- - HEADER2- --- WEIGHT DATA --

con1: counting mode

HEADER1: ST=STABLE， US=UNSTABLE

HEADER2: NT=NET， GS=GROSS

Con2:

Header0=02H
Header1 follow decimal point
Decimal point=0, header1=22H
Decimal point=1, header1=23H
Decimal point=2, header1=24H
Decimal point=3, header1=25H
Decimal point=4, header1=26H
Header2 follow weigh status, default value=20H
If in net mode (tare value not 0), header2=header2|01H
If gross weight “-“, header2=header2|02H
If overload or gross weight “-“, header2=header2|04H
If unstable, header2=header2|08H
If weighing unit=kg, header2=header2|10H
Header3 follow weighing unit
If weighing unit=g, header3=21H
If weighing unit=oz, header3=23H
Weight1~weight6: weighing data
Tare1~tare6: tare value
Terminator1: 0DH
Terminator2: 0AH

Con3:

Header0=01H
Header1 follow weight “+” or “-“
When weight “+”, header1=”+”, when weight “-“, header=”-“
Weight1~weight7: weight data (include decimal point)
Unit1~unit2: weight unit
Status: when stable, status=0, when unstable, status=1
Terminator1: 0DH
Terminator2: 0AH

PRW serial bench scale user’s manual

-15-

SECTION 10 CALIBRATION

Press UNIT key and M+ key together when normal weighing mode, display shows

“F0 H-L”, press TARE key until display shows “PrOG”, press ZERO key, display
shows “PIN”, You can press G/N、UNIT、ZERO key to enter setting mode, press

TARE key to select "p2 CAL", press ZERO key to sure. press TARE key to
select .While it is showing "CAL " press the ZERO key to enter. The display will
show "linear".

1. Normal calibrate
Press TARE key to select "nonlin".then press the ZERO key to enter,the display
shows: "unload” Remove any weight from the platform. After stable indicator on,
press the ZERO key.

Then the display will show the last calibration weight used. If this is correct ,you can
continue by pressing the ZERO key. If it is not correct use the M+, G/N, TARE
keys to change the calibration weight value. When it is correct press the ZERO key.

Then display will show “LoAd”. Place the calibration weight on the scale. After
stable, press the ZERO key. Then the calibration has completed.

2. Linear calibrate

Press the ZERO key to enter,the display shows: "ld 0”, Remove any weight from the
platform. After stable indicator on, press the ZERO key.

Then display will show “Ld 1”. Place the 1/3 of capacity calibration weight on the
scale. After stable, press the ZERO key.

Then display will show “Ld 2”. Place the 2/3 of capacity calibration weight on the
scale. After stable, press the ZERO key.

Then display will show “Ld 3”. Place the full capacity calibration weight on the scale.
After stable, press the ZERO key. Then the calibration has completed.

If the calibration is acceptable the display will return to normal. If an error message
is shown try calibration again as a disturbance may have prevented a successful
calibration.

If the problem persist then contact your dealer.

After calibration the scale should be checked to verify the calibration and linearity is
correct. If necessary repeat calibration, especially be certain the scale is stable
before accepting any weight.

PRW serial bench scale user’s manual

ERROR
CODES

DESCRIPTION

RESOLUTION

- - - - -

Over range

Remove weight from the scale.
If the problem persist contact your dealer or
Taiwan scale for assistance.

Err 1

Date Setting Error

Enter date using correct format and reasonable
values.
Format: yy:mm:dd

Err 2

Time Setting Error

Enter time using correct format and reasonable
values.
Format: hh:mm:ss

Err 4

Zero Setting Error

The scale was outside the normal zero setting
range either when it was turned on or when the
ZERO key was pressed.
Remove weight from the scale and try again.
Use the TARE key to set the display to zero value.
If the problem persist contact your dealer or
Taiwan scale for assistance.

Err 6

A/D out of range

The values from the A/D converter are outside the
normal range. Remove weight from the scale if
overloaded, make sure the pan is attached.
Indicates the load cell or the electronics may be
faulty.
If the problem persist contact your dealer

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SECTION 11 ERROR CODES

PRW serial bench scale user’s manual

FUNCTION

SUB-FUNCTION

DESCRIPTION

P1 REF

AZN 0

This option is used to select the auto zero
maintain; Options : 0.5d, 1d, 2d, 4d

0-AUTO

This option is used to select the auto zero range
when turn the indicator.
Options : 0%, 2%, 5%, 10%, 20%

0- RANGE

This option is used to select the manual zero
range when press the ZERO key.
Options: 2%, 4%, 10%, 20%, 50%, 100%

speed

Set ADC speed, press U. Wt. Key to select ADC
speed, press Tare key to enter

7.5: 7.5 times per second
15: 15 times per second
30: 30 times per second
60: 60 times per second
Note: 15 times per second or 30 times per
second are recommendatory

P 2 CAL

DECI

This option is used to select the decimal
Options : 0, 0.0, 0.00, 0.000

INC

This option is used to select the division
Options : 1, 2, 5, 10, 20, 50

CAP

This display will show xxxxxx for setting the
capacity.

CAL

linear

Calibrate, see detail in section 10.

nonlin

P3 P RO

TRI

This display will show xxxxxx for trimming the
load cells, see detail in service manual.

COUNT

This display will show xxxxxx for indicating the
internal counts.

RESET

This display will show SURE for recovering the
factory default setting.

P4 CHK

Mode 1

This is mode of the natural scale

Mode 2

This is animal scale
Scale can lock reading when little unstable

MODE 3

This is a subtration scale (print out “-“ weight)
M+ format:
GROSS: 0.888KG gross for gross weight
NET: 0.222KG net for net weight
TARE: 0.666KG tare for tare weight

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SECTION 12 TECHNICAL PARAMETERS

Press UNIT key and M+ key together when normal weighing mode, display shows

“F0 H-L”, press TARE key until display shows “PrOG”, press ZERO key, display
shows “PIN”, You can press G/N、UNIT、ZERO key to enter setting mode, press Tare

key to select parameter, press Zero key to sure, press UNIT key to escape.

MODE 4

As the mode 2, but M+ out format different
NW: 0.222KG nw for net weight
GW:0.888KG gw for gross weight

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PRW serial bench scale user’s manual

PRW serial bench scale user’s manual

Taiwan Scale Mfg. Co., Ltd.

282, Sec.3, Hoping W. Rd.

Taipei,

Taiwan

TEL:[phone]

FAX:[phone]

e-mail: [e-mail]

W & P Scales Mfg. (Kunshan) Co., Ltd.

No. 99 Shunchang Road

Kunshan Hi-tech industry park

Kunshan, Jiangsu

China
TEL:[phone]
FAX:[phone]

e-mail: [e-mail]

TAIWAN SCALE is a international supplier with more than 30 years experience in the
production and sale of electronic weighing equipment.

Products are supplied and serviced from our company locations in the CHINA,
TAIWAN and distributed through a world wide dealer network, also we make
OEM/ODM products for world wide customer.

TAIWAN SCALE's products are predominantly designed for the laboratory, medical,
business and industrial markets.

The product range can be summarised as follows:

 Counting scales for general industrial and warehouse applications
 Digital weighing/check-weighing scales
 High performance platform scales with extensive software facilities including parts

counting, percent weighing etc.

 Digital electronic scales for medical use
 Retail price computing scales
 Floor scales
 Truck scale
 Crane scales
 Weighing indicator for platform scales, floor scales and truck scales
 Hand push and pull gauge
 Customize auto weighing systems

TAIWAN SCALE and their distributors offer a full range of technical services such as
on site and workshop repair, preventative maintenance and calibration facilities.

TAIWAN SCALE operates an approved quality management system and is certified
to ISO9001:2000.

Visit our Website at: www.taiwanscale.com

©Copyright by Taiwan Scale Mfg. Co., Ltd. All rights reserved. No part of this
publication may be reprinted or translated in any form or by any means without the
prior permission of Taiwan scale.

Taiwan Scale reserves the right to make changes to the technology, features,
specifications and design of the equipment without notice.

All information contained within this publication was to the best of our knowledge
timely, complete and accurate when issued. However, we are not responsible for
misimpressions which may result form the reading of this material.

The latest version of this publication can be found on our Website.