PCE Instruments PCE-SW 3000N, PCE-SW 5000N, PCE-SW 1500N Users guide

PCE-SW N Series

Scales and Weighing Beams

USER MANUAL

Edition:10052001A

www.pce-instruments.com

Safety Instruction

For safety operation pls. follow the safety instruction.

WARNING

Setting. Calibration Inspection and Maintain of the indicator is
prohibited by Non-professional staff.

WARNING

Pls. make sure the weighing display have good ground in using

WARNING

The indicator is the static and sensitive equipment,
cut off the power during electrical connections,
internal components touched by hand is prohibited,
and please take the measure of anti-static.

LIST

1. Instruction ............................................................................................. 1

1.1 Main function ................................................................................. 1

1.2 Technical parameter ........................................................................ 1

1.3 Drawing .......................................................................................... 2

1.4 Battery instruction ........................................................................... 3

2. Installation and calibration .................................................................... 4

2.1 Power supply connection .............................................................. 4

2.2 Loadcell connection ....................................................................... 4

2.3 communcation interface ................................................................ 5

2.4 4~20mA ......................................................................................... 6

2.5 Relay output signal ........................................................................ 6

3. Basic operation ....................................................................................... 9

3.1 Keyboards...................................................................................... 9

3.2 Power on....................................................................................... 11

3.3 Zero function ................................................................................. 11

3.4 Tare function ................................................................................. 11

3.5 Total function ................................................................................. 11

3.6 Print function ................................................................................ 13

3.7 Hold function ................................................................................ 13

4. Calibartion and Technical parameter setting ........................................ 13

4.1 Enter calibartion ........................................................................... 13

4.2 Caliaration.................................................................................... 14

4.3 Technical parameter setting......................................................... 16

5. Output format ........................................................................................ 22

5.1 Second display continuous output .............................................. 22

5.2 Conputer continous output .......................................................... 22

5.3 Serial interface receive PC command ......................................... 23

5.4 Print output format ....................................................................... 24

5.5 PC/ Second display continuous output format ............................ 24

6. Maintain ................................................................................................. 25

6.1Toubleshooting for common problems ......................................... 25

6.2 Daily maintenance ........................................................................ 26

6.3 Default parameter recovery ......................................................... 26

6.4 Packing list................................................................................... 29

1. Instruction

This weighing indicator is designed for bench scale. Floor scale, the basic
weighing function include: Hold. Print kg/lb conversion . optional: I/O , 4-20mA
output.

1.1 Main function

Weighing function:

Zero, tare, G.W, N.W, accumulation. printing, animal -weighing.
kg/lb convert. Overload remind.
Print format: S.N. G.W N.W Tare. Date, Time

Options:

Pinter
RS232/RS485 serial interface or second display
I/O
4-20mA

1.2 technical parameter

Accuracy class 6000 e
Resolution display: 30, 000 ADC: 2,000,000
Zero stability error TK
Span stability error TK
Sensitivity (internal) 0. 3 μV /d
Input voltage -30~30mV DC
Excitation circuit 5 VDC, 4 wire connection,

AC power AC100~250V

Operation temperature - 10 °C ~ + 40 °C
Operation humidity ≤90%RH
Storage temperature - 40 °C ~ + 70 °C

< 0.1μV//K

0

< ± 6 ppm//K

spn

Maximum connect 6 load cell of 350Ω

1

1.3 Outline（mm）

2

1.4 Battery instruction

1. . when you use the internal battery first time，you should charge
the battery fully, to prevent low voltage resulted from self leakage
of battery.

2. when the “battery” light is on, means low battery, pls. charge it

in time

3. the light turns to yellow during charging

4. when the light turns to green, means fully charged.

5. if battery is not used for long time, take it out to avoid the

leakage.

6. In order to keep the battery in best using condition, it is suggest

that you fully discharge the battery every month, the method is that
using the indicator till it is automatically power off.

3

2.Installation and calibration

2.1 Power supply connection

The indicator is powered by adapter, you plug the adapter directly into

the “DC” pin at the back cover the indicator is ok.

2.2 Connection of load cell and indicator

The indicator can connect with 6 load cell of 350Ω at most, 4 wire or 6
wire load cell both ok.

There are two methods connection between load cell and indicator

A. quick disconnect, as below:

B. Terminal trip connection (inner connection)

1. the exciting voltage for the load cell is 5VDC, the largest output

current 120mA, maximum connect 6 pcs 350Ω load cell;

2. Load cell (or the signal cable for the junction box) is connected
with 5 bit
Terminal trip ( J5) on the circuit-board of weighing indicator.

3. Open Weighing indicator back cover, insert signal cable to the
terminal trip(J5), and make sure the screw is fixed tightly, the
connection as below:

4

Weighing display Load cell

+EXC + voltage
+IN + output signal
HD ----------- Shielded wire

-IN - output signal

-EXC -IN HD +IN +EXC -EXC - voltage

2.3 Communication interface

RS232 : DB9 Pin or 3 Pin

DB9 definition

5 4 3 2 1

9 8 7 6

Pin function and definition as bellows:

DB9 joint Definition Function

2 TXD Sending data
3 RXD Receiving data
5 GND Ground interface

Note: if RS485, The connection pin is 2 and 5 pin.

3 Pin definition

5

Inner connection

TXD RXD GND A B

Pin definitions：

Pins Definitions Function

TXD Sending data

RS232

RS485

RXD Receiving data

GND Ground

A RS485 output “A”port

B RS485 output”B”port

2.4 4-20mA output

Technical parameters:

Resolutions: 1/1000
Outside Load: 100-350Ω

Connection:

1. Inside connection: 4-20mA, load input port connect with “I” of J2, Ground port

connect with “ GND” of J2

2. Outside connection: 4-20mA, load input port connect with “1” pin of D89,

Ground port connect with “6” pin of DB9

Testing :

6

Connect the 250Ω to the 4-20mA, adjust the multimeter to the current stalls, the
red pan connect the loading port, and the black pan connect” GND” to test the
output current.

Calibration:

1. Press” Print” and “ Total” go to C32, show[out-4], the output current should be

4mA.

2. If Press [↑]show[out-5] ，Pres[↓]show[out-20]，the output current should be
20mA.

3. Adjust the current, for example, adjust to [out-20], the output current should be
12mA, if not 12mA. Press [←](“Zero” key)or[→](Net/gross key)to adjust the current
to 12mA

2.5 Relay output signal function

The indicator can output 4 signal , connect with the outside equipment
the indicator can perform automatic control function and upper limit
and lower limit alarm function. Perform the 4 kinds function through
setting C33, 4 signals

As below

C33＝0

C33＝1

Output

port

Out1 Close output function No output signal
Out2 Close output function No output signal
Out3 Close output function No output signal
Out4 Close output function No output signal
Out1 Open overload control function Output overload

Out2 Open compliance control function Output compliance

Out3 Open underload control function Output underload

Port definition Function

control signal

control signal

control signal

7

Out4 Open stable control function Output stable control

signal

Out1 Weight>=C13 instant connection Feeding control

signal

Out2 Weight<=C14 instant connection Feeding control

signal

C33＝2

C33＝3 Preserved, no function.

Out3 OUT1、OUT2 close When OUT1、OUT2

connect will output
alarm signal,
connect with buzzer

Out4 Weight<=C14 constant connection

Weight>=C13 disconnect

Feeding start and
stop

For example:
Check weigher application. Connect indicator with yellow, green, red 3

lights. Yellow light on when overload, if ok the green light on. If
underload red light on. And can connect with buzzer. There would be
alarm remind when overload.

C33=2 Feeding control application
For hopper scales. The target is between is 50~500kg, the Output

card can perform open and close feeding valve.
Parameter setting C13=500kg C14=50kg
C13=500kg upper limit , close feeding valve
C14=50kg lower limit, open feeding valve.
Connection: 1. Connect directly control machine, pls. connect OUT 4,

suggest connect another manually switch as the stop switch in
emergency

2. indicator output signal will influence the ON/OFF switch to control

machine, OUT 2 ON, OUT 1 OFF, OUT 3 connect buzzer, alarm
remind when start and stop.

Instruction: when the weight over 500kg, OUT 1 OU3 instant
connection and break off, OUT 4 break off; when weight under

8

50kg, OUT 2 OUT3 instant connection and break off, OUT 4
constant connection.

5 4 3 2 1
9 8 7 6

DB9 pin definition port

1 pin 1st output signal pin Out1
6 pin 1st output signal pin Out1
2 pin 2nd output signal pin Out2
7 pin 2nd output signal pin Out2
3 pin 3rd output signal pin Out3
8 pin 3rd output signal pin Out3
4 pin 4th output signal pin Out4
9 pin 4th output signal pin Out4

Inner connection pin definitions

01 01 02 02 03 03 04 04

9

3. Basic operation

3.1 keypad

LED instruction

Weighing data

kg

lb

kg
lb

10

Hold

Data hold

Gross

Net

Tare

Hi

OK

Lo

.

PCS

TOTAL

Gross weight
Net weight
tare
The weighing data is stable
Weight is zero
Overload

ok
Underload

Decimal
Show the counting status.

Go to accumulation mode

Keys function

keys Key name Key function

1.work with “ZERO” TARE” “ON/OFF” key

Print

Zero

Tare

Gross weight

to perform many functions. 2.Print
Zero the weight within tolerance

At G.W mode, get the tare weight. At N.W
mode, clear the tare, get the G.W

At N.W mode, check the G.W, after 3
seconds back to N.W automatically

11

Counting operation

Counting

Hold Freezes displayed weight on screen

1. Accumulation

Accumulation

2. work together with “ Print” to perform
The accumulation function and check the
accumulation result

Power on/off

3.2
Power on & off

Press 2 seconds to power on or power off, after power on the
indicator show”000000-999999”. After self inspection. It go to the weighing

mode. Pls. check it whether 6 bits LED/LCD display and the status light is
good or not.

3.3 Zero operation

1. Initial zero setting
When power on the indicator, if the weight on the scale is within the

initial zero tolerance, indicator show zero automatically.

2. Manually Zero setting
When the scales is stable, and not the negative display, you can zero

Press 2 seconds to power on or power off

the weight within tolerance by press keys.

3.4 Tare operation

12

Press “TARE” key, the gross weight is tared, indicator show the Net
weight, the “Net” “tared” status light is on. At tare mode, Press” TARE”
key, clear the tare weight, the indicator will show the gross weight.

3.5 Accumulation operation

At Zero mode, load weight till stable, Press go to accumulation

mode, ”Total” light on, display” n 001”, and then display loaded weight; unload
the weight , back to zero, load the second weight again till stable. Press

display”n002” then display the second loaded weight. Repeat it agin

and again, maximum 999 times.

Check the accumulation

Press “ON/OFF “key and hold it then press “TOTAL”” key, display ”n**”, (it is
the accumulating times) then show total weight. there are 8 digits totally. It
shows the first 4 digits then the last 4 digits. For example, the first 4 digits
is”0012”, the last 4 digits is”34,56” It means the actual weight is “1234.56”

EXIT the accumulation function

When the indicator show the last 4 digits, Press hold it, the
indicator show “ clr n”, it means don’t clear the total Weight, Press “PRINT”

key to exit it; if you want to clear total weight, Press “ZERO” or “TARE” key,
“clrn” change to “clry” it means clear total weight ,then Press “PRINT” to clear
the total weight and exit accumulating mode.

3.6 Print

If the weighing is stable, after connect with printer, press” PRINT”
can print the weight. Note: at tare mode, print with tare. if negative
weight,, can not print. Set C30 for time format.

13

3.7 Hold

There are two different hold function. Peak hold function and data hold
function. And the setting is different accordingly.

C11=3 Automatic hold function C11=0 close hold function.

3.8 COUNT

1.At weighing mode, load the weights on the platform scales, Press”
Count” the indicator show” PCS 0” press” Zero” key input the quantity,
press” Print” to confirm it
2 . Load the goods on the platform scales, then the indicator will show
the quantity.

3. Press” Count” back to weighing mode.

4. If you want to weigh different goods, at weighing mode, put the

sample on the platform scales, press” Count” the indicator show”0”
Press “ Count” hold it and then press “ ON/OFF” the indicator
show” PCS 0”, press “Zero” input the sample quantity, press
“ Print” to confirm it. Then repeat the step 2 and 3.

4. Calibration and Parameter setting

4.1 Enter setting

There have two methods to enter the setting menu:

1. when the switch “ CAL” is off, press the “PRINT” hold it and

then press” HOLD” enter C08-39 setting.

2. Take out the sealing screw on the back of indicator, then press
“CAL” , at the “SPAN” position as below. press “PRINT” hold it and
then press “TOTAL” key , enter C01-C39 setting.

14

The key functions in setting：

Enter

Up

Down

Left

Power switch. exit setting

4.2. Step of calibration operation:

According to the second method which can enter setting menu,
C01-C39

step

Method of operation

display Remark

1 [C01 ] After you enter calibration

mode, it display [C01 ]

2 press [C01 1] Weight unit

option：1=kg

2=lb

3 press

press
press or

[C02 ]
[C02 0]
[C02 2]

15

Set decimal digits
option：0/1/2/3/4
Select decimal digit

4 press

press
press or

5 press

press
press or /

press
press
press
press

6

7 press

press

press or

press

press or
press

[C03 ]
[C03 1]
[C03 5]

[C04 ]
[0100.00]
[0100.00]

[C05 ]
[C05 0]
[C05 1]
[CAL 9]
。。。。。。
[0000.00]

[C06 ]
[C06 0]

[C06 1]

[SPAN ]
[0100.00]

[0080.00]
[CAL 9]
……
[0080.00]
[CAL End]

example： two decimal point：
[C02 2]
Set graduation
option：1/2/5/10/20/50
Select required graduation
example：graduation 5：[C03 5]
Max capacity

example：max weighing 100kg:
[0100.00]
Zero calibration

Option
0=no need zero calibration
1=need zero calibration
calibration zero please choose 1 and
ensure scale is empty and “stable”
light is on
Ensure zero calibration, countdown.
Till show[0.00](example for two
decimal point)。

calibration
option:
0=No need calibration
1= need calibration
Load weights on scales
according to max. capacity.
Suggest close to the max
capacity, at least 10% of max.
capacity.

For example: the weights is
80kg
As bellows:
Input the 0080.00, count down ,

16

then indicator shows 0080.00 ,
calibration is over.
If you want to set application
function parameter. Press
“PRINT” if you want to exit
press “TOTAL”

8

press
press
press or

[C07 ]

[07 0]
[07 1]

Default parameters setting
option:0=non-restore default
parameters
1=restore default parameters
Note: after the above
parameters setting finish, please
do not set default parameters to
avoid the original setting
parameters is lost.

4.3 Application function parameters setting chart

Function

warning

tone

Setting
Item
C08

warning
tone

parameters setting and instruction

Options: 0 = close warning tone

1 = open warning tone

option：0=close auto power off
10= power off automatically if no

Automatic

power off

C09

Automatic
power off

30= power off automatically if no

change within 10 minute.

change within 30 minute.
60= power off automatically if no
change within 60 minute.

LED Version:

Power saving

setting

C10

Power saving
setting

option：0= close power saving setting
3= close display if no change within 3min.

5= close display if no change within 5 min.
LCD Version:

17

Hold

function

Kg/lb

conversion

Upper/lower

limit alarm

Inner Code

display

C11

Hold mode

C12

Kg/lb
conversion

C13

Upper limit
alarm value

C14

Lower limit

alarm value

C15

Check inner
code

0=Close he backlight
1= backlight when the weight change or

press the keyboard

2=constant backlight

option：0=close hold function

1=Peak hold /2=Data Hold
Instruction:
Peak-hold: it shows the max. data,

mainly application for materials testing,
such as tension and pulling force.

Date-hold: it shows current weight value.

Mainly application for animal weighing.

C12=0 stop kg/lb conversion
C12=1 kg/lb conversion is ok

You can set it within the max. capacity limit

enter C15 to check the inner code

Date and time

Communication

setting

C16

Date

C17

Time

C18

Serial interface
data output method

18

Enter C16, you can set the date,
from left to right: year/month/day
Enter C17, you can set the time from
left to right: hour/min./sec.
option：0= Close serial interface data
output
1=Continuous sending, connect
second display

Zero range

C19

Baud rate

C20

Manually zero
range

C21

Initial zero range

C22

Automatically zero
tracking range

2=Print method, connect printer.
3=Command request method ，
connect computer.
4=PC continues sending format,
connect computer.
5=PC/ second display continuous
sending format.
option：
0=1200/1=2400/2=4800/3=9600
Option:
0= close manually zero setting
1=±1% max capacity
2=±2% max capacity
4=±4% max capacity
10=±10% max capacity
20=±20% max capacity
100=±100% max capacity
option：0= no initial zero setting

1=±1% max capacity
2=±1% max capacity

5=±1% max capacity
10=±1% max capacity
20=±1% max capacity

Options:
0= close zero tracking

0.5=±0.5d

1.0=±1.0d

2.0=±2.0d

3.0=±3.0d

4.0=±4.0d

5.0=±5.0d

Zero tracking

Note: 1. d = division

2. the zero tracking range can

19

not bigger than manual zero range.

00= close overload range

Overload range

Negative display

Standstill time

C23

Automatically zero
tracking time

C24

Overload range

C25

Negative display
range

C26

Standstill time

C27

Standstill range

Options:
0= close zero tracking time
1= 1 second
2= 2 seconds
3= 3 seconds

option：
01d～99d
remark：d =division

Option：0=-9d
10=10% max. capacity
20=20% max. capacity
50=50% max. capacity
100=100% max. capacity
Option:
0= quick 1= medium 2= slow

Option:
1= 1d 2=2d 5=5d 10=10d
D= division

20

Digital filter

C28

Dynamic filter
Instruction ：
Dynamic filter is
collecting the data
filter before loaded
weight stable.
When loaded
weight easily
shaking (for
example animal) ,
you can set this
filter to make
weight display
more stable

C29

Noise filter

option：0= close dynamic filter
1=1 digital filter strength
2=2 digital filter strength
3=3 digital filter strength
4=4 digital filter strength
5=5 digital filter strength
6=6 digital filter strength
Note ： Pls setting dynamic filter

strength carefully, the No. is
bigger, more stable. if the
loaded weight shake not too
much. The setting is less than 3

option：0=close noise filter
1=1 digital filter strength
2=2 digital filter strength
3=3 digital filter strength

Analog output
setting

4~20mA current
calibrate

Relay output
setting

C30

Print time and date

C30=0 yy.mm.dd
C30=1 mm.dd.yy
C30=2 dd.mm.yy
C30=3 yy.mm.dd

C31 output type C31=0 0~5Vouput

C31=1 4~20mA output

C32 calibrate

Refer to 2.5

current
C33 Relay output C33=0 close relay output

C33=1 Open relay output function 1
C3=2 Open relay output function2
C33=3 Preserved menu

21

Muti
communication
add.
Wireless

C34
Communication
add.

C35 C35=0~99 signal
communication
Gravity of

C36 C36=9.7000~9.9999
calibration
location
Gravity of

C37 C37=9.7000~9.9999
destination
Version No. C38
Preserved menu C39

C34= 0~99 Add. Code

22

5. Output format

T X

W C X X X X X X X X X X X X C R C

5.1 Second display continuous sending format

Output continuous format

S

S

S

S

W

W

A

B

1

2 3 4 5 6

State A

Bits0,1,2
0 1 2 Decimal point position
1 0 0 XXXXXX0
0 1 0 XXXXXXX
1 1 0
0 0 1
1 0 1

Bits3,4 Division
0 1 X1
1 0 X2

K
S

XXXXX．X
XXXX．XX
XXX．XXX

State B

BitsS function
Bits0 gross=0, net=1
Bits1 Symbol: positive =0,negative =1
Bits2 Overload(or under zero)=1
Bits3 dynamic=1

Bits4
Bits5 Constant 1
Bits6 Constant 0

23

unit：lb=0, kg=1

State C

,

Bit2 Bit1 Bit0 unit

0 0 0 Kg or lb
0 0 1 g
0 1 0 t

Bit 3 printing=1

Bit 4

Bit 5 Constant 1
Bit 6 Constant 0

5.2 Computer continuous sending format

Extend

display=1

,

CR LF

S 1 S 2 S 3 Data S 4

S1: weight status, ST= standstill, US= not standstill, OL= overload
S2: weight mode, GS=gross mode, NT=net mode
S3: weight of positive and negative, “+” or ” –“
S4: “kg” or “lb”
Data: weight value, including decimal point
CR: carriage return
LF: line feed

5.3 Serial interface reception command：

RS232COM serial interface can receive simple ASCII command.
Command word and role as follows:

Command

T TARE Save and clear tare
Z ZERO Zero gross weight

NAME Function

24

P PRINT Print the weight
R G.W/N.W Read gross weight or net weight
C Kg/lb Kg/lb conversion
G G.W Check gross weight at net weight mode

R command receive data format

5.4 Print format

ID.NO. 004 （Serial No.）
Date: XX.XX. XX (yy.mm.dd)
Time: XX.XX.XX (hh.mm.ss)
GROSS 8.88kg (gross weight)
TARE 2.88kg （tare）
NET 6.00kg （net weight）

5.5 PC or Second display continuous sending format

25

6. Maintenance

6.1 Regular error and solution

ERROR REASON SOLUTION

UUUUUU

1. Overload

2. wrong connection
with load cell

3. load cell has quality
problem.

1. reduce the weight

2. check load cell connection

3. inspection load cell. Check
the input and output

nnnnnnn

ERR1

ERR2

ERR3

1. calibration is no
good

2. wrong connection

3. load cell has quality
problem

During calibration, not
input the weights or
the weight is overload

During calibration , the
weights is below than
Min. required weights

During calibration, the
input signal is
negative

26

1. check scale is resisted or
not, foot is kept level or not.

2. check load cell connection.

3. checking load cell： check

input and output resistance to
judge it is good or not.
Input the correct weights

The calibration weights
Minimum is 10% of Max. cap.
Recommend 60%-80% of Max.
Cap.

1. check the connection is

correct

2. check load cell is no

problem

3. recalibration if still wrong

change the PCB

ERR4

During calibration, the
signal is unstable

After the platform is stable, start
calibration

ERR5 Change PCB

6.2 Daily maintain

1. Protect the indicator from strong sunlight to prolong the using life

2. Good connection between load cell and indicator. Far from away

from strong electric field, magnetic field.

3. Power off the indicator when lightning

4. Power off the indicator firstly before plug and unplug

6.3 Restore default parameter

Enter to calibration, Set C07=1. Press” PRINT” then press” TOTAL” to

exit saving setting. All parameter will back to default

Note： Pls. do not restore default parameter easily if you are not

professional staff or not yet calibrate the scales.

Default parameter

Parameter

C01
C02
C03
C04
C05
C06
C07
C08
C09
C10

instruction Default

Calibration
Decimal digits
Resolution
Max. capacity
Empty calibration
Capacity calibration
Restore default
Warning tone
Power-off automatically
Power saving mode

1
0
1

10000

0
0
0
1
0
0

27

C11

Hold function

0
C12 Prohibit kg/lb conversion １
C13 Upper limit alarm 000000
C14 Under limit alarm 000000
C15 Inner code
C16 Date setting
C17 Time setting
C18 Serial interface data output 0
C19 Serial interface Baud rate 3（9600）
C20 Zero manually 10
C21 Initial zero 10
C22 Zero tracking range 0．5
C23 Zero tracking time 1
C24 Overload range 9
C25 Negative range 10
C26 Standstill time 1
C27 Standstill range 2
C28 Dynamic filter 0
C29 Noisy filter 2
C30 Print format 0
C31 Analog signal options 1
C32 4~20mA testing 4
C33 Relay output setting 1
C34 Muti PC communication add. 0
C35

Wireless communication channel

6
C36 Calibration location gravity 9.7936
C37 Destination gravity 9.7936
C38 Version No. check
C39 Reserved menu

28

6.4 Packing list

Packing list

S/N ITEM NAME UNIT QTY PACKING

Weighing

1

indicator

2 Plastic bag PCS 1
3 bag PCS 1

China/DC9V PCS 1
US/DC9V PCS 1

4 Adapter

5 USER MANUAL
6 RS232 3 PIN OR DB9 PCS 1

LOADCELL

7

PLUG
Signal cable Φ5/3 core shield

8

9 Power cable 3 coreΦ0.75mm PCS 1

10 Bracket Wall-mounted PCS 1

11 Certificate PCS 1

12 Packing list PCS 1

UK/DC/9V PCS 1
EU/DC9V PCS 1
AU/DC9V PCS 1
OTHERS PCS 1

5 PIN Quick
disconnect

signal cable

PCS

PCS 1

PCS

PCS

1

1

1

29