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PS1000/PS2000
Floor Scale
User Instructions
AWT35-501201 Issue AA June 2013
Page 2
© Brecknell, LLC 2013. All rights reserved.
No part of this publication may be reproduced, stored in an electronic retrieval system, or transmitted in any form
or by any means, electronic, mechanical, photocopying, recording or otherwise without the prior written consent of
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Brecknell is a registered trade mark of the Brecknell, LLC. This publication was correct at the time of going to print
however, Brecknell, LLC reserves the right to alter without notice the specification, design, price or conditions of
supply of any product or service at any time.
All third party brands and product names used within this document are trademarks or registered trademarks of
their respective holders.
PS1000_2000 floor scale_u_en_501201.book
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Table of Contents
Chapter 1 General Information and Warnings ........................................................................................ 3
About this Manual ..............................................................................................................3
Text Conventions ........................................................................................................ 3
Special Messages ....................................................................................................... 3
Warnings ............................................................................................................................ 4
EMC Compliance ............................................................................................................... 4
Routine Maintenance ......................................................................................................... 5
Cleaning the Indicator ........................................................................................................ 5
Sharp Objects .................................................................................................................... 5
Chapter 2 Specifications ........................................................................................................................... 6
Scale Platform .................................................................................................................... 6
Capacity ...................................................................................................................... 6
Dimension ................................................................................................................... 6
Options ........................................................................................................................6
Scale Indicator ................................................................................................................... 6
Power Supply .............................................................................................................. 6
Dimension ................................................................................................................... 7
Display ......................................................................................................................... 7
Keypad ........................................................................................................................ 7
Environment ............................................................................................................... 7
Load Cell Excitation ..................................................................................................... 7
Communication ........................................................................................................... 7
Chapter 3 Introduction .............................................................................................................................. 8
Indicator Mounting .............................................................................................................8
Front Panel ........................................................................................................................ 8
Display ............................................................................................................................... 9
Keyboard .......................................................................................................................... 10
Navigating the Weigh Mode ............................................................................................. 11
Power the Indicator ................................................................................................... 11
Enter or Exit the HOLD Mode .................................................................................... 11
Zero ...........................................................................................................................11
Tare ...........................................................................................................................11
Clear Tare Weight ..................................................................................................... 11
Output Data (Print) .................................................................................................... 12
Change Weight Unit .................................................................................................. 12
Hold Function ................................................................................................................... 14
Access the Hold Mode .............................................................................................. 14
Chapter 4 Setup Mode ............................................................................................................................. 15
Entering the Setup Menu ................................................................................................. 15
Navigating the Setup Menu .............................................................................................. 15
Setup Menu Parameters .................................................................................................. 16
Relationship of Capacity and P7, P8 and P9 Settings ..................................................... 21
Exit the Setup Menu ......................................................................................................... 24
Chapter 5 Calibration .............................................................................................................................. 25
Calibration Mode .............................................................................................................. 25
Display ADC Code or Working Voltage Value ................................................................. 26
Chapter 6 Serial Communication ........................................................................................................... 28
Com Port 1 ....................................................................................................................... 28
Protocol ............................................................................................................................ 28
Transaction String ............................................................................................................ 28
PS1000/2000 User Instructions 1
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Commands and Response .............................................................................................. 30
Chapter 7 Troubleshooting ..................................................................................................................... 33
Display Characters ........................................................................................................... 33
Display Symbols .............................................................................................................. 34
Error Messages and Troubleshooting .............................................................................. 34
2 PS1000/2000 User Instructions
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1 General Information and Warnings
1.1 About this Manual
This manual is divided into chapters by the chapter number and the large text at the top
of a page. Subsections are labeled as shown by the 1 and 1.1 headings shown above.
The names of the chapter and the next subsection level appear at the top of alternating
pages of the manual to remind you of where you are in the manual. The manual name
and page numbers appear at the bottom of the pages.
1.1.1 Text Conventions
The keys used to interface with the PS-500 are located on the front panel of the
indicator. The keystrokes are shown in BOLD incased between brackets. (e.g. [ZERO])
Displayed messages appear in LCD format (e.g. setup) type and reflect the case of
the displayed message.
1.1.2 Special Messages
Examples of special messages you will see in this manual are defined below. The
signal words have specific meanings to alert you to additional information or the relative
level of hazard.
CAUTION!
This is a Caution symbol.
Cautions give information about procedures that, if not observed, could result
in damage to equipment or corruption to and loss of data.
ELECTRICAL WARNING!
THIS IS AN ELECTRICAL WARNING SYMBOL.
ELECTRICAL WARNINGS MEAN THAT FAILURE TO FOLLOW
SPECIFIC PRACTICES OR PROCEDURES MAY RESULT IN
ELECTROCUTION, ARC BURNS, EXPLOSIONS OR OTHER HAZARDS
THAT MAY CAUSE INJURY OR DEATH.
NOTE: This is a Note symbol. Notes give additional and important information, hints
and tips that help you to use your product.
PS1000/2000 User Instructions 3
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1.2 Warnings
l Read all operating instructions carefully before use.
l Avoid lengthy exposure to extreme heat or cold. Your scale works best when
operated at normal room temperature. Always allow the scale to acclimate to
a normal room temperature before use.
l Allow sufficient warm up time. Turn the scale on and wait for a few minutes if
possible. This will give the internal components a chance to stabilize before
weighing.
l These electronic scales are precision instruments. Do not operate near an
in-use cell phone, radio, computer or other electronic device. These devices
emit RF and can cause unstable scale readings.
l Avoid using in heavy vibration and airflow conditions.
l Read the weight shortly after loading. The output of the loadcell and A/D
may be a little influenced after weight sits for a long time.
DANGER: FOR YOUR PROTECTION, ALL MAINS (110V OR 230V)
EQUIPMENT USED WHERE DAMP OR WET CONDITIONS MAY OCCUR
MUST BE SUPPLIED FROM A CORRECTLY FUSED SOURCE AND
PROTECTED BY AN APPROVED GROUND FAULT PROTECTION
DEVICE (RCD, GFCI ETC).
DANGER: RISK OF ELECTRICAL SHOCK. BE SURE TO UPLUG THE
INDICATOR BEFORE REMOVING THE COVER OR OPENING THE UNIT.
REFER TO QUALIFIED SERVICE PERSONNEL FOR SERVICE.
1.3 EMC Compliance
The following warning may be applicable to your machine.
CAUTION!
This is a Class A product.
In a domestic environment this product may cause radio interference in which
the user may be required to take adequate measures.
United States
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in
a commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.
4 PS1000/2000 User Instructions
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Canada
This digital apparatus does not exceed the Class A limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian
Department of Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les
limites applicables aux appareils numériques de la Classe A prescrites dans le
Règlement sur le brouillage radioélectrique edicté par le ministère des
Communications du Canada.
1.4 Routine Maintenance
IMPORTANT: This equipment must be routinely checked for proper operation
and calibration.
Application and usage will determine the frequency of calibration required for
safe operation.
Always turn off the machine and isolate from the power supply before starting
any routine maintenance to avoid the possibility of electric shock.
1.5 Cleaning the Indicator
Table 1.1 Cleaning DOs and DON’Ts
DO DO NOT
Wipe down the outside of standard products
with a clean cloth, moistened with water and
a small amount of mild detergent
Spray the cloth when using a proprietary
cleaning fluid
1.6 Sharp Objects
Do not use sharp objects such as screwdrivers or long fingernails to operate the keys.
Attempt to clean the inside of the indicator
Use harsh abrasives, solvents, scouring cleaners or
alkaline cleaning solutions
Spray any liquid directly on to the display window
PS1000/2000 User Instructions 5
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2 Specifications
2.1 Scale Platform
2.1.1 Capacity
l PS1000: 500 kg x 0.2 kg / 1,000 lb x 0.5 lb
l PS2000: 1000 kg x 0.5 kg / 2,000 lb x 1.0 lb
2.1.2 Dimension
l PS1000: 55.75” L x 20.25” W x 2.5” H
m 1416 mm (L) x 514 mm (W) x 64 mm (H)
l PS2000: 59” L x 30” W x 2.5” H
m 1498 mm (L) x 762 mm (W) x 64 mm (H)
2.1.3 Options
l Table top stand
l Floor stand
2.2 Scale Indicator
l Input signal range: 0mV - +30mV
l Sensitivity: >0.2µV/grad
l Internal Resolution: Approximately 520,000 counts
l Display Resolution: can be selected between 500-100,000
l System Linearity: within 0.01% of Full Scale
l Calibration Method: Software calibration with long-term storage in EEPROM
2.2.1 Power Supply
l Alkaline batteries: 4 AAA size cells (20 hour battery life)
l AC adapter: 6VDC, 500mA with central negative
l Work current: .25mA
m (when voltage in 5Vdc-8Vdc and not include loadcell consumption)
6 PS1000/2000 User Instructions
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2.2.2 Dimension
2.2.3 Display
2.2.4 Keypad
2.2.5 Environment
Working temperature 5° to 35°C
Storage temperature -10°C to 70°C
Humidity ≤95% RH without condensation
l 6.5” L x 3.2” H x 1.2” W
m 164 mm (L) x 762 mm (W) x 64 mm (H)
l 5-digit,7-segment, 0.625" (16mm) LCD
l 4 push button keys
2.2.6 Load Cell Excitation
Because more than one load cell can be used on a scale, the following are required for
the load cell set to be used with this indicator.
Voltage 4.4VDC
Max. Current 55mA (can power 4-350 ohm loadcells)
Signal connection 4 or 6 lead with sense leads
Max Sensitivity 0.3mV/V to +3mV/V (must be fit to >0.2µV
Input Resistor ≥80 Ω
Output Resistor <10 KΩ
2.2.7 Communication
Mode Full-duplex or only output mode can be selected
Baud Rate Selectable: 1200-2400-4800-9600-19200 bps
Data Format 7 data bits, even or odd parity, 1 stop bit
8 data bits, non-parity, 1 stop bit
Protocol 7 selected protocols (one compatible with NCI standard SCP-01)
Output Data gross weight, net weight, tare weight, indicator displaying weight, weighing unit etc.
/display grad)
PS1000/2000 User Instructions 7
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3 Introduction
d=Max
ZERO
NET
lb
kg
oz
This chapter introduces indicator mounting, display and keypad operation in normal
weigh mode.
3.1 Indicator Mounting
The PS-500 is supplied with an ABS plastic bracket. Wall mount vertically or bench
mount horizontally depending on your needs.
3.2 Front Panel
The front panel incorporates the display and keypad.
8 PS1000/2000 User Instructions
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3.3 Display
Max
d=
lb
kg
oz
Display Symbol Description
ZERO The scale is at zero point and the gross weight is 0.
The PS-500 indicator utilizes a 7 segment LCD (Liquid Crystal Display) providing the
weight and system information.
Arrows will illuminate to designate the current mode.
Figure 3.1 PS-500 Display
Table 3.1 LCD Display Annunciators and Definitions
HOLD The scale is in HOLD mode.
The current live weight is being displayed when the arrow flashes. The current weight is
locked when the arrow does not flash.
NET Indicates net mode and the tare weight is not 0.
lb Indicates the current unit of measure is lb.
oz Indicates the current unit of measure is oz.
kg Indicates the current unit of measure is kg.
PS1000/2000 User Instructions 9
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3.4 Keyboard
Key Function
The keyboard consists of four keys, some of which have multiple functions.
Figure 3.2 SBI-521 Keypad
Table 3.2 Function of the Keys (Normal Working Mode)
If this key is only set for HOLD (P2=0), press to enter or exit the HOLD mode.
If this key is only set for PRINT (P2=1), press to output the data according to P4 setting.
If this key is only set for HOLD and PRINT (P2=2), press to output data according to P4
setting and hold the current weight.
Choose weighing units; lb, kg, lb:oz
Note: The weighing units that can be used are restricted by display division, and
calibration weight unit (restricted by P8, P9, and P10)
For example, if the calibration unit is kg; calibration display resolution is 50kg (that
means: P8=5, P9=0, P10=0). If the UNIT key is pressed to choose weighing units, lb or
lb:oz are not allowed to choose since the display resolution of 100lb or 2000oz is not
available to this indicator.
Tare function
This function can be activated only when the scale is in stable mode and the gross
weight is not a negative value.
Power on
Zero function: When the weight is within zero range, it will activate as ZERO function
and clear the tare weight. When the weight is not within the zero setting range (P13),
the scale will show 0----- (zero point is over the setting range) or 0_____ (zero is below
the setting range).
Power off
ignore modification
Prepare to exit from current working mode
10 PS1000/2000 User Instructions
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3.5 Navigating the Weigh Mode
3.5.1 Power the Indicator
Turn the indicator on or off with the [ON/OFF] key.
3.5.2 Enter or Exit the HOLD Mode
Press the [HOLD] key.
3.5.3 Zero
When the weight is stable and within the zero range, press the [ZERO] key to set a new
zero point. Refer to Table 3.3 for zero limitations.
3.5.4 Tare
When the gross weight is larger than zero and the scale is stable, press the [TARE]
key. The indicator will show a net weight of zero and the arrow to the right of NET will
be illuminated. Refer to Table 3.3 for tare limitations.
3.5.5 Clear Tare Weight
Remove any weight on platform and wait until the scale is stable. Press the [TARE] key.
Standard
USA ≤0 no No action Zero
Canada ≤0 no No action Zero
Table 3.3 Zero and Tare Limitations
Weight on
platform
>0 no Tare
>0 no Tare
Data in TARE
memory unit
yes Clear the tared weight
yes
yes Clear the tared weight
yes No action
Tare key Zero key
key function
PS1000/2000 User Instructions 11
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Standard
Weight on
platform
Data in TARE
memory unit
key function
Tare key Zero key
Europe
None
(same with Europe)
3.5.6 Output Data (Print)
When scale is stable press the [PRINT] key.
3.5.7 Change Weight Unit
Press the [UNIT] key to select kg, lb or lb:oz. Note: under some conditions lb:oz is not
available. Please refer the following tables.
≤0 no No action Zero
yes Clear the tared weight Zero and clear the
tared weight
>0 no Tare Zero
yes Zero and clear the
tared weight
≤0 no No action Zero
yes Clear the tared weight Zero and clear the
tared weight
>0 no Tare Zero
yes Zero and clear the
tared weight
Table 3.4 Use kg as Primary Unit
Calibration
Division Value
0.0001kg 0.0001kg 0.0002lb Not available
0.001kg 0.001kg 0.002lb Not available
0.01kg 0.01kg 0.02lb 0.5oz
0.1kg 0.1kg 0.2lb Not available
1kg 1kg 2lb Not available
10kg 10kg 20 lb Not available
0.0002kg 0.0002kg 0.0005 lb Not available
0.002kg 0.002kg 0.005 lb 0.1 oz
0.02kg 0.02kg 0.05 lb 1 oz
0.2kg 0.2kg 0.5 lb Not available
2kg 2kg 5 lb Not available
20kg 20kg 50 lb Not available
0.0005kg 0.0005kg 0.001 lb Not available
kg lb lb:oz
Display Division Value
12 PS1000/2000 User Instructions
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Calibration
Division Value
kg lb lb:oz
Display Division Value
0.005kg 0.005kg 0.01 lb 0.2 oz
0.05kg 0.05kg 0.1 lb 2oz
0.5kg 0.5kg 1 lb Not available
5kg 5kg 10 lb Not available
50kg 50kg Not available Not available
Table 3.5 Use lb as Primary Unit
Calibration
Division Value
kg lb lb:oz
Display Division Value
0.0001lb Not available 0.0001lb Not available
0.001 lb 0.0005 kg 0.001 lb Not available
0.01 lb 0.005 kg 0.01 lb 0.2 oz
0.1 lb 0.05 kg 0.1 lb 2 oz
1 lb 0.5 kg 1 lb Not available
10 lb 5 kg 10 lb Not available
0.0002 lb 0.0001 kg 0.0002 lb Not available
0.002 lb 0.001 kg 0.002 lb Not available
0.02 lb 0.01 kg 0.02 lb 0.5 oz
0.2 lb 0.1 kg 0.2 lb Not available
2 lb 1 kg 2 lb Not available
20 lb 10 kg 20 lb Not available
0.0005 lb 0.0002 kg 0.0005 lb Not available
0.005 lb 0.002 kg 0.005 lb 0.1 oz
0.05 lb 0.02 kg 0.05 lb 1 oz
0.5 lb 0.2 kg 0.5 lb Not available
5 lb 2 kg 5 lb Not available
50 lb 20 kg 50 lb Not available
PS1000/2000 User Instructions 13
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3.6 Hold Function
HOLD function can be used to freeze a displayed number. In this mode, the scale can
capture a dynamic number, hold a stable number, or average a unstable number and
then HOLD (freeze) this number temporarily for the user to view or record.
The HOLD function can be used in normal weighing mode, counting mode and percent
weighing mode. After entering HOLD mode, the speed of A/D converter can be
increased to 80Hz (if USER-HOLD-AD.H.SPD is set to YES) from original 10Hz for
some dynamic weighing applications.
It is possible to weigh restless weighing samples such as live animals or moving objects
within the hold function. The indicator provides special mode settings to accommodate
weight movements.
3.6.1 Access the Hold Mode
To enter the HOLD mode, press the [HOLD] key while in the normal weighing mode.
14 PS1000/2000 User Instructions
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4 Setup Mode
To set up the indicator, you must first enter the appropriate menu mode. The front panel
keys become directional navigators to move around in the menus. See Table 4.1 for
details.
4.1 Entering the Setup Menu
1. Press and hold the [ON/OFF/ZERO] and [UNIT] keys unit setup is displayed.
1a. This indicator offers 19 different setup parameters.
4.2 Navigating the Setup Menu
1. Once setup is displayed, use the [UNIT] key to change the flashed digits
and use the [HOLD/PRINT] key to shift the flashed position.
The parameter will be designated in the following format:
PN.x or PNN.xx - P is parameter; N or NN is the parameter number; x or xx is the choice
within the parameter. Refer to Table 4.2 for parameters and the options for each
parameter.
2. Use the [TARE] key to confirm the entry, save the data and go to the next
parameter.
Table 4.1 Key Functions in the Setup Mode
Key Function
Move cursor from right to left.
Scroll selected digit (0 - 9).
Cycles through the parameters.
Confirm parameter choice selection.
Exit from setup mode to normal work mode.
PS1000/2000 User Instructions 15
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4.3 Setup Menu Parameters
This section provides more detailed descriptions of the selections found in the Setup
Menu.
The menu table shows the options and default parameter in LCD display format to
coinside with the actual display.
Table 4.2 Parameter Choices and Explanations
SubMenu1 Option Default Parameter Description Comment
P1 00-15 05 Auto off time 00 = no auto off
01-15 = auto off time in minutes. The scale will
automatically turn off after specified time when
there has been no flucuation of weight.
p2 0-2 2 Hold key function 0 = only HOLD function
1 = only PRINT function
2 = HOLD and PRINT function. Short press for
Print function and long press for Hold function.
p3 0-2 2 Hold mode function 0 = no hold function
1 = hold larger weight reading
2 = auto release hold function when weigh is
below 10d and auto hold new stable weigh
(more than 10d)
3-50 3-50 = unchangeable reading when the variety
is within ±3-50d
p4 0-7 2 Output of print data 0 = no RS232 function. Will not transmit or
receive data.
1 = output display data when PRINT is pressed
and weight reading is stable.
<LF><weight reading, minus sign, decimal
point, unit><CR><EXT>
2 = output gross, tare and net weight and weigh
unit when PRINT pressed.
<LF><Gross:weight reading, minus sign,
decimal point, unit><CR><EXT>
<Tare:weight reading, decimal point,
unit><CR><EXT>
<Net:weight reading, minus sign, decimal point,
unit><CR><EXT>
3 = continuously output displayed weight
reading and unit. No data will be received.
Output format same as choice 1.
4 = continuously output gross, tare, net weight
and weigh unit. No data will be received. Output
formats same as choice 2.
5 = output display data and weigh unit one time
when scale is stable. Output format same as
choice 1.
6 = output gross, tare, net weight and weigh
unit one time when scale become stable.
Output formats same as choice 2.
7 = Bio-RS232 data output, compatible to NCISP1
16 PS1000/2000 User Instructions
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SubMenu1 Option Default Parameter Description Comment
P5 0-4 3 Baud rate for RS-232 0 = 1200 bps
1 = 2400 bps
2 = 4800 bps
3 = 9600 bps
4 = 19200 bps
p6 0-2 0 RS-232 protocol 0 = 8NO
1 = 7O1
2 = 7E1
p7 00-31 9 Scale resolution select Refer to Table 4.3 for resolution choices and
values.
P8 0-2 1 Calibration division size Refer to Table 4.4 and Table 4.5
0 = 1
1 = 2
2 = 5
p9 0-5 1 Decimal point in calibration Refer to Table 4.4 and Table 4.5
0 = 1
1 = 0.1
2 = 0.01
3 = 0.001
4 = 0.0001
5 = 10
p10 0,1 1 Calibration unit Refer to Table 4.4 and Table 4.5
0 = kg
1 = lb
p11 0-6 6 Weigh units enable 0 = only kg
1 = only lb
2 = only lb:oz
3 = kg or lb
4 = kg or lb:oz
5 = lb or lb:oz
6 = kg, lb, or lb:oz
p12 0-7 3 Power on zero range 0 = calibration zero -point +1%FS
1 = calibration zero -point +2%FS
2 = calibration zero-point +5%FS
3 = calibration zero-point +10%FS
4 = calibration zero-point +20%FS
5 = calibration zero-point +50%FS
6 = calibration zero-point +100%FS
7 = no limitation
p13 0-7 2
Zero range for [ZERO] key 0 = power-on zero-point +1%FS
1 = power-on zero-point +2FS
2 = power-on zero-point +5%FS
3 = power-on zero-point +10%FS
4 = power-on zero-point +20%FS
5 = power-on zero-point +50%FS
6 = power-on zero-point +100%FS
7 = no limitation
p14 0-2 2 Weight signal within power
on zero point range
0 = current weight
1 = calibration zero-point
2 = switch off zero point and power off tare
weight as current tare weight
PS1000/2000 User Instructions 17
Page 20
SubMenu1 Option Default Parameter Description Comment
p15 0-3 1 Weight signal not within
power on zero point range
0 = current weight
1 = calibration zero-point
2 = switch-off zero-point
3 = continuously display 0-----
p16 0-8 8 Zero tracking range Choose the zero tracking range as per the
stability of weighing system accuracy.
0 = 0d, no tracking
1 = +0.25d
2 = +0.5d
3 = +1d
4 = +1.5d
5 = +2d
6 = +3d
7 = +4d
8 = +5d
p17 0-3 2 Data filter intensity The larger the digit data filter intensity is
stronger and the speed of data updating is
lower.
0 = very weak
1 = weak
2 = middle
3 = strong
p18 0-9 1 Range of weight stability
checking
0 = +0.5d
1 = ±1d
2 = +2d
3 = +3d
4 = +4d
5 = +5d
6 = +6d
7 = +7d
8 = +8d
9 = +9d
p19 0-9 1 Overload limit range 0 = FS+0d
1 = FS+9d
2 = 101%FS
3 = 102%FS
4 = 105%FS
5 = 110%FS
6 = 120%FS
7 = 150%FS
8 = 200%FS
9 = no limitation
18 PS1000/2000 User Instructions
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Table 4.3 Calibration Resolution (P7)
Parameter
Choice
Calibration
Resolution
Parameter
Choice
00 500 16 7500
01 600 17 8000
02 750 18 10000
03 800 19 12000
04 1000 20 15000
05 1200 21 20000
06 1500 22 25000
07 2000 23 30000
08 2400 24 35000
09 2500 25 40000
10 3000 26 50000
11 3500 27 60000
12 4000 28 70000
13 5000 29 75000
14 6000 30 80000
15 7000 31 100000
Calibration
Resolution
Table 4.4 Calibration Units (kg) per P8, P9 and P10
Calibration
Division Value
kg lb lb:oz
Display Division Value
0.0001kg 0.0001kg 0.0002lb Not available
0.001kg 0.001kg 0.002lb Not available
0.01kg 0.01kg 0.02lb 0.5oz
0.1kg 0.1kg 0.2lb Not available
1kg 1kg 2lb Not available
10kg 10kg 20 lb Not available
0.0002kg 0.0002kg 0.0005 lb Not available
0.002kg 0.002kg 0.005 lb 0.1 oz
0.02kg 0.02kg 0.05 lb 1 oz
0.2kg 0.2kg 0.5 lb Not available
2kg 2kg 5 lb Not available
20kg 20kg 50 lb Not available
0.0005kg 0.0005kg 0.001 lb Not available
PS1000/2000 User Instructions 19
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Calibration
Division Value
kg lb lb:oz
Display Division Value
0.005kg 0.005kg 0.01 lb 0.2 oz
0.05kg 0.05kg 0.1 lb 2oz
0.5kg 0.5kg 1 lb Not available
5kg 5kg 10 lb Not available
50kg 50kg Not available Not available
Table 4.5 Calibration Units (lb) per P8, P9 and P10
Calibration
Division Value
kg lb lb:oz
Display Division Value
0.0001lb Not available 0.0001lb Not available
0.001 lb 0.0005 kg 0.001 lb Not available
0.01 lb 0.005 kg 0.01 lb 0.2 oz
0.1 lb 0.05 kg 0.1 lb 2 oz
1 lb 0.5 kg 1 lb Not available
10 lb 5 kg 10 lb Not available
0.0002 lb 0.0001 kg 0.0002 lb Not available
0.002 lb 0.001 kg 0.002 lb Not available
0.02 lb 0.01 kg 0.02 lb 0.5 oz
0.2 lb 0.1 kg 0.2 lb Not available
2 lb 1 kg 2 lb Not available
20 lb 10 kg 20 lb Not available
0.0005 lb 0.0002 kg 0.0005 lb Not available
0.005 lb 0.002 kg 0.005 lb 0.1 oz
0.05 lb 0.02 kg 0.05 lb 1 oz
0.5 lb 0.2 kg 0.5 lb Not available
5 lb 2 kg 5 lb Not available
50 lb 20 kg 50 lb Not available
20 PS1000/2000 User Instructions
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4.4 Relationship of Capacity and P7, P8 and P9 Settings
Table 4.6 Capacity Unit is kg or lb (Count by 1)
Resolution
set by P7
500 0.0500 0.500 5.00 50.0 500 5000
600 0.0600 0.600 6.00 60.0 600 6000
750 0.0750 0.750 7.50 75.0 750 7500
800 0.0800 0.800 8.00 80.0 800 8000
1000 0.1000 1.000 10.00 100.0 1000 10000
1200 0.1200 1.200 12.00 120.0 1200 12000
1500 0.1500 1.500 15.00 150.0 1500 15000
2000 0.2000 2.000 20.00 200.0 2000 20000
2400 0.2400 2.400 24.00 240.0 2400 24000
2500 0.2500 2.500 25.00 250.0 2500 25000
3000 0 .3000 3.000 30.00 300.0 3000 30000
3500 0.3500 3.500 35.00 350.0 3500 35000
4000 0.4000 4.000 40.00 400.0 4000 40000
5000 0.5000 5.000 50.00 500.0 5000 50000
6000 0.6000 6.000 60.00 600.0 6000 60000
7000 0.7000 7.000 70.00 700.0 7000 70000
7500 0.7500 7.500 75.00 750.0 7500 75000
8000 0.8000 8.000 80.00 800.0 8000 80000
10000 1.0000 10.000 100.00 1000.0 10000 100000
12000 1.2000 12.000 120.00 1200.0 12000 120000
15000 1.5000 15.000 150.00 1500.0 15000 150000
20000 2.0000 20.000 200.00 2000.0 20000 200000
25000 2.5000 25.000 250.00 2500.0 25000 250000
30000 3.0000 30.000 300.00 3000.0 30000 300000
35000 3.5000 35.000 350.00 3500.0 35000 350000
40000 4.0000 40.000 400.00 4000.0 40000 400000
50000 5.0000 50.000 500.00 5000.0 50000 500000
60000 6.0000 60.000 600.00 6000.0 60000 600000
70000 7.0000 70.000 700.00 7000.0 70000 700000
75000 7.5000 75.000 750.00 7500.0 75000 750000
80000 8.0000 80.000 800.00 8000.0 80000 800000
100000 10.0000 100.000 1000.00 10000.0 100000 1000000
0.0001 0.001 0.01 0.1 1 10
Division set by P8 (P8 = 0) and P9
PS1000/2000 User Instructions 21
Page 24
Table 4.7 Capacity Unit is kg or lb (Count by 2)
Resolution
set by P7
0.0002 0.002 0.02 0.2 2 20
Division set by P8 (P8 = 1) and P9
500 0.1000 1.000 10.00 100.0 1000 10000
600 0.1200 1.200 12.00 120.0 1200 12000
750 0.1500 1.500 15.00 150.0 1500 15000
800 0.1600 1.600 16.00 160.0 1600 16000
1000 0.2000 2.000 20.00 200.0 2000 20000
1200 0.2400 2.400 24.00 240.0 2400 24000
1500 0.3000 3.000 30.00 300.0 3000 30000
2000 0.4000 4.000 40.00 400.0 4000 40000
2400 0.4800 4.800 48.00 480.0 4800 48000
2500 0.5000 5.000 50.00 500.0 5000 50000
3000 0.6000 6.000 60.00 600.0 6000 60000
3500 0.7000 7.000 70.00 700.0 7000 70000
4000 0.8000 8.000 80.00 800.0 8000 80000
5000 1.0000 10.000 100.00 1000.0 10000 100000
6000 1.2000 12.000 120.00 1200.0 12000 120000
7000 1.4000 14.000 140.00 1400.0 14000 140000
7500 1.5000 15.000 150.00 1500.0 15000 150000
8000 1.6000 16.000 160.00 1600.0 16000 160000
10000 2.0000 20.000 200.00 20000.0 20000 200000
12000 2.4000 24.000 240.00 2400.0 24000 240000
15000 3.0000 30.000 300.00 3000.0 30000 300000
20000 4.0000 40.000 400.00 4000.0 40000 400000
25000 5.0000 50.000 500.00 5000.0 50000 500000
30000 6.0000 60.000 600.00 6000.0 60000 600000
35000 7.0000 70.000 700.00 7000.0 70000 700000
40000 8.0000 80.000 800.00 8000.0 80000 800000
50000 10.0000 100.000 1000.00 10000.0 100000 1000000
60000 12.0000 120.000 1200.00 12000.0 120000 1200000
70000 14.0000 140.000 1400.00 14000.0 140000 1400000
75000 15.0000 150.000 1500.00 15000.0 150000 1500000
80000 16.0000 160.000 1600.00 16000.0 160000 1600000
100000 20.0000 200.000 2000.00 20000.0 200000 2000000
22 PS1000/2000 User Instructions
Page 25
Table 4.8 Capacity Unit is kg or lb (Count by 5)
Resolution
set by P7
0.0005 0.005 0.05 0.5 5 50
Division set by P8 (P8 = 2) and P9
500 0.2500 2.5000 25.00 250.0 2500 25000
600 0.3000 3.000 30.00 300.0 3000 30000
750 0.3750 3.750 37.50 375.0 3750 37500
800 0.4000 4.000 40.00 400.0 4000 40000
1000 0.5000 5.000 50.00 500.0 5000 50000
1200 0.6000 6.000 60.00 600.0 6000 60000
1500 0.7500 7.500 75.00 750.0 7500 75000
2000 1.0000 10.000 100.00 1000.0 10000 100000
2400 1.2000 12.000 120.00 1200.0 12000 120000
2500 1.2500 12.500 125.00 1250.0 12500 125000
3000 1.5000 15.000 150.00 1500.0 15000 150000
3500 1.7500 17.500 175.00 17500.0 17500 175000
4000 2.0000 20.000 200.00 20000.0 20000 200000
5000 2.5000 25.000 250.00 2500.0 25000 250000
6000 3.0000 30.000 300.00 3000.0 30000 300000
7000 3.5000 35.00 350.00 3500.0 35000 350000
7500 375.00 37.500 375.00 3750.0 37500 375000
8000 4.0000 40.000 400.00 4000.0 40000 400000
10000 5.0000 50.000 500.00 5000.0 50000 500000
12000 6.0000 60.000 600.00 6000.0 60000 600000
15000 7.5000 75.000 750.00 7500.0 75000 750000
20000 10.0000 100.000 1000.00 10000.0 100000 1000000
25000 12.5000 125.000 1250.00 12500.0 125000 1250000
30000 15.0000 150.000 1500.00 15000.0 150000 1500000
35000 17.5000 175.000 1750.00 17500.0 175000 1750000
40000 20.0000 200.000 2000.00 20000.0 200000 2000000
50000 25.0000 250.000 2500.00 25000.0 250000 2500000
60000 30.0000 300.000 3000.00 30000.0 30000 3000000
70000 35.0000 350.000 3500.00 35000.0 350000 3500000
75000 37.5000 375.000 3750.00 37500.0 375000 3750000
80000 40.0000 400.000 4000.00 40000.0 400000 4000000
100000 50.0000 500.000 5000.00 50000.0 500000 5000000
PS1000/2000 User Instructions 23
Page 26
4.5 Exit the Setup Menu
1. Power off the indicator by pressing and holding the [ZERO/ON/OFF] key.
2. Move the slide switch on the rear cover back to the left and replace the metal
protective plate. Refer to section 4.2 for location.
3. Turn the indicator back on by pressing the [ON] key. The display will go
through a digit check, then settle into Normal Operating mode. All front panel
keys will now return to their normal mode of operation.
24 PS1000/2000 User Instructions
Page 27
5 Calibration
The config/cal switch must be set to the ON position in order to calibrate the indicator.
NOTE: More than 25% of the full scale weight is needed for calibration.
5.1 Calibration Mode
Before calibration, prepare the standard weight (more than 25% of full scale).
1. Remove any weight on the scale.
2. When in normal weighing mode, press and hold down [TARE] and [ON/OFF/
ZERO] keys to enter calibration mode.
3. When the indicator displays cal-, the scale is ready for calibration. Press
[TARE] to confirm and go to next step or press [ON/OFF/ZERO] to exit the
calibration mode.
4. The indicator will display cap--.
4a. This means the following data is the full capacity according to your setting of
display resolution (P7), display division value (P8), location of decimal point in
calibration unit (P9) and capacity unit in calibration (P10).
4b. If the setting of full scale is more than 199999 (regardless of decimal point and
weight unit), the full scale capacity will be shown by first four digits and last
four digits: Hxxx and Lxxx.
5. Press [TARE] to go to next step directly, press [ON/OFF/ZERO] to exit the
calibration mode or after a few seconds it will automatically to next step.
6. The scale will automatically display the setting of division. Firstly it will display
d.--, and then the data according to your setting of P8, P9 and P10. Refer to
Table 5.1 to choose a division size.
Table 5.1 Divison Sizes
0.0001 kg/lb 0.0002 kg/lb 0.0005 kg/lb
0.001 kg/lb 0.002 kg/lb 0.005 kg/lb
0.01 kg/lb 0.02 kg/lb 0.05 kg/lb
0.1 kg/lb 0.2 kg/lb 0.5 kg/lb
1 kg/lb 2 kg/lb 5 kg/lb
10 kg/lb 20 kg/lb 50 kg/lb
7. Press [TARE] to go to next step directly, press [ON/OFF/ZERO] to exit the
calibration mode or after a few seconds it will automatically to next step.
8. CAL.P0 is displayed. This is the scale zero point. Remove weight from scale
and press the [TARE] key.
PS1000/2000 User Instructions 25
Page 28
9. Cal.p1 will be displayed. This is the second calibration point. The default
standard weight is 50% of full scale. Load weight from 12.5% to 100% of full
scale.
10. Use the [PRINT/HOLD] and [UNIT] keys to input the loaded weight.
10a. If the input data is larger than 199999 it will be shown by first four digits and
last four digits: Hxxx and Lxxx.
10b. If the triangular symbol on the left bottom of LCD window appears, it means
that the digit being changed is the displayed most significant bit which can only
be 0/blank or 1.
11. Press the [TARE] key to confirm your setting and the indicator will flash the
input standard weight. Wait till the scale comes steady and input A/D data as
per the standard weight.
12. Cal.p2 will be displayed. This is the third calibation point. When xxxxxx kg (or
lb) is displayed (100% FS is default), you can press [ON/OFF/ZERO] to exit
the calibration mode or place a standard weight (must be in the range of 25%100% FS, and equal or larger than that for the second calibration point; this is
also the range of your input number) on the scale.
13. Use the [PRINT/HOLD] and [UNIT] keys to input the loaded weight.
14. Use [TARE] key to confirm the standard weight and input number are correct.
14a. If the calibration weight for third point is same with that for second point and
the calibration weight is more than 25%FS, input the standard calibration
weight same as second point calibration and press [TARE] key to confirm the
setting. The indicator will flash the input weight. If the indicator get reasonable
data (the input weight is correct, and the calibration weight of third calibration
is more than equal to the calibration weight of second calibration), it will go to
next step.
15. Cal.p0 will be displayed again. Press [TARE]. The display will blink. If the
calibration is good the data will be saved. The display will perform an auto
reset and return to the working mode.
15a. If an error occurs during calibration, cal.er will be displayed. Start from step
1 and recalibrate.
5.2 Display ADC Code or Working Voltage Value
In this mode, you can examine the stability of weighing system and increment the ADC
output code corresponding to the loaded weight.
Note:
l The increment of ADC code for full scale weight must be larger or equal to 2
times of selected display division. Otherwise, the calibration cannot be
properly completed.
m e.g. The display division is 0.1kg. Load 100kg standard weight on the
platform, the increment of ADC code should be at least more than
2x100kg/0.1kg= 2x1000=2000. In this case, the scale can be calibrated.
Otherwise, smaller division needs to be chosen.
l The data should be stable. Otherwise, the calibration cannot be properly
completed.
26 PS1000/2000 User Instructions
Page 29
In this mode, the proper ADC data at zero point can be viewed by examining the A/D
data for loaded weight.
m If the ADC increase for full capacity is NFS, the power-on zero range is
set to Zp% FS (P12 setting) and zero key range is set to Zk% FS (P13
setting). Then proper ADC data of zero point is larger than (Zp%+ Zk%)
x NFS.
1. From the weigh mode press and hold the [ON/OFF/ZERO] and [HOLD/PRINT]
key until Code is shown. The indicator will show the firmware version.
2. ADC increase for full capacity (NFS) can be make by loading the weight (W) on
the platform and the ADC increase for W weight is Nw. The ADC increase for full
capacity WFS is (NFS)= (Nw)x (WFS)/W.
2a. It is possible a negative value will be displayed due to an error from the
loadcell(s) or the position of the zero-point potentiometer on PCB. However,
the software only deals with positive values. In this case the position of zeropoint potentiometer will need to be adjusted to make the ADC data will be
positive value and larger than (Zp%+ Zk%) x NFS. Normally the indicator is
factory-calibrated and adjustment is not necessary. Refer to Figure 5.1 for the
zero point potentiometer location. Decrease ADC data by rotating clockwise,
and increase ADC data by rotating counter-clockwise.
Figure 5.1 Zero Point Potentiometer Location
3. Press the [UNIT] key to select the ADC weight inner code or input the inner
working voltage value. When Ux.xx is displayed, the displayed digits are the
voltage value. The proper working power voltage is between 5V - 8V.
4. Press the [TARE] key to display filtered or unfiltered weigh A/D data. When
is on the data is filtered.
5. Press the [ON/OFF/ZERO] key to exit this mode and return to the normal
weighing mode.
PS1000/2000 User Instructions 27
Page 30
6 Serial Communication
6.1 Com Port 1
COM1 is a RS-232 bi-directional port. Communication wires are connected to the RS232 connector using TXD1, RXD1 and GND.
Table 6.1 PS-500 Com1 Port
Designation Description Pin
TXD transmit 2
RXD receive 3
GND ground/common 5
DSR data set ready 4
DTR data terminal ready 6
CTS clear to send 7
RTS return to send 8
no connection no connection 1
no connection no connection 9
NOTE: The indicator DB9 female connector has pin 4 and pin 6 shorted together.
Pin 7 and pin 8 are also shorted together.
6.2 Protocol
The baud rate and byte format is fixed by P5 and P6 settings.
Responses to serial commands will be immediate or within one weight measure cycle
of the scale. One second should be adequate for use as a time-out value by remote
(controlling) device.
6.3 Transaction String
The length of the weight field will be 7 digits. One digit for minus sign, one for decimal
point, 2 for unit of measure.
l If the unit is lb:oz, another two for lb and on for a space after lb. Units of
measure abbreviations are always lower case.
l If the weight is over capacity, the scale will return nine "^" characters (the
field of minus sign, decimal point, weight data is filled by "^").
l If the weight is under capacity, it will return nine "_" characters (the field of
minus sign, decimal point, and weight data is filled by "_").
l If the zero point is error, it will return nine "_" characters. The character will
be “-” for negative weight or a space character for positive weight. Minus
sign follow after the first digit.
Useless leading 0 before digits is suppressed.
28 PS1000/2000 User Instructions
Page 31
Table 6.2 Symbols Used
<LF> Line Feed character (hex 0AH)
<CR> Carriage Return character (hex 0DH)
<ETX> End of Text character (hex 03H)
<SP> Space (hex 20H)
H
1H2H3
Four current status bytes
<P> Polarity character: "?" or " "
---W
W
1
7
Reading data, 1-7 bytes (seven digits)
<DP> Decimal point
U
1U2
Measure units, kg, lb, lb:oz, % or pcs; 2-5 bytes
Bit
Table 6.3 Bit Definition of H
Byte 1 (H
) Byte 2 (H2) Byte 3 (H3)
1
1H2H3
0 0 = stable 0 = not under capacity 00 = compare disable
1 = not stable 1 = under capacity
1 0 = not at zero point 0 = not over capacity
01 = lower limit
10 = ok
11= upper limit
1 = at zero point 1 = over capacity
2 always 0 always 0 0 = gross weight
1 = net weight
3 0 = eeprom OK always 0 always 0
1 = eeprom error
4 always 1 always 1 always 1
5 always 1 always 1 always 1
6 always 0 always 1 always 0
7 parity parity parity
PS1000/2000 User Instructions 29
Page 32
6.4 Commands and Response
Command: W<CR> (57h 0dh), request current reading
Response
<LF>^^^^^^^^U
<LF>_ _ _ _ _ _ _ _ U
<LF> - - - - - - - - U
Note: If the weigh unit is lb:oz, U
<LF><P>W
<CR><LF> H1H2H3 <CR><ETX>---over capacity
1U2
<CR><LF> H1H2H3 <CR><ETX>---under capacity
1U2
<CR><LF> H1H2H3 <CR><ETX>---zero-point error
1U2
oz in above responses
1U2
1W2W3W4W5W6
<DP>W7 U1U2<CR><LF> H1H2H3 <CR><ETX>---scale is stable and the
current weigh unit is kg or lb. With or without decimal point and the position is as per the P9 setting.
<LF><P>W
<LF><P>W
lb<SP>W4W5lb<SP>W6W7oz<CR> H1H2H3<CR><ETX>
1W2W3
lb<SP>W4lb<SP>W5W6<DP>W7oz<CR> H1H2H3<CR><ETX>
1W2W3
Command: S<CR> (53h 0dh), request current status
Response
<LF> H
1H2H3
<CR><ETX>
Command: Z<CR> (5ah 0dh)
Response
Zero function is activated (simulate ZERO key) and it returns to current scale status.
<LF> H
1H2H3
<CR><ETX>
If ZERO function cannot be activated, it will return to current scale status.
Command: T<CR> (54h 0dh)
Response
TARE function is activated (simulate TARE key), and then returns scale status.
<LF> H
If TARE function cannot be activated, it will return to current scale status.
1H2H3
<CR><ETX>
30 PS1000/2000 User Instructions
Page 33
Command: U<CR> (55h 0dh)
Response
Changes units of measure (simulate UNIT key) and return scale status with new units,
The new measure unit should be allowed to use
<LF> U
<CR><LF> H1H2H3<CR><ETX>
1U2
Command: L<CR> (4ch 0dh)
Response
If Hold function can be activated, it will enable/disable hold function (simulate HOLD key) and returns scale status.
<LF> H
1H2H3
<CR><ETX>
Command: X<CR> (58h 0dh)
Response
Power off the scale, just like press down the ON/OFF key to turn off the scale.
Command: all others
Response
Unrecognized command
<LF>? <CR><ETX>
Table 6.4 Summary of Command and Response:
Command Response
ASCII HEX
W<CR> 57 0d Read scale weight:
<LF>^^^^^^^^U1U2 U3U4U5<CR><LF> H1H2H3 H4<CR><ETX>---over
capacity
?<LF>________U1U2U3U4U5<CR><LF> H1H2H3 H4<CR><ETX>---under
capacity
?<LF>-------- U1U2 U3 U4U5<CR><LF> H1H2H3 H4<CR><ETX>---zero-point
error
?<LF><p>W1W2W3W4W5<dp>W6U1U2U3U4U5<CR><LF>H1H2H3H4<CR
><ETX>---normal data
S<CR> 53 0d <LF> H1H2H3H4<CR><ETX>; read scale status
Z<CR> 5a 0d <LF> H1H2H3H4<CR><ETX>; simulate ZERO key
T<CR> 54 0d <LF> H1H2H3H4<CR><ETX>; simulate TARE key
U<CR> 55 0d <LF> U1U2 U3 U4U5<CR><LF> H1H2H3H4<CR><ETX>; simulate UNIT key
L<CR> 4c 0d <LF> H1H2H3H4<CR><ETX>; simulate HOLD key
X<CR> 58 0d power off the scale, simulate OFF key
others <LF>? <CR><ETX>
PS1000/2000 User Instructions 31
Page 34
32 PS1000/2000 User Instructions
Page 35
7 Troubleshooting
This chapter gives explanations on commonly seen errors, display characters and
display symbols.
7.1 Display Characters
ASCII
0AN
1BO
2CP
3DQ
4ER
5FS
6GT
Display
Character
ASCII
Display
Character
ASCII
Display
Character
7HU
8IV
9JW
KX
LY
MZ
PS1000/2000 User Instructions 33
Page 36
7.2 Display Symbols
Symbol Description
0------ Zero is over the setting range
0_______ Zero point is below the setting range
Ad------ Signal to ADC is over maximum range
Ad______ Signal to ADC is below minimum range
-------- Weight is over upper limitation or display data is over limitation
________ Weight is below lower limitation
eep.e0 EEPROM can’t be accessed.
EEP.E1 The parameters are not the same as the backup data
EEP.E2 The setting parameter(s) is not in normal range
Lo.bAt Battery voltage is below 4.7V
CAP.- - The setting full capacity will be displayed
CAL.Px Calibration on point (x)
CAL.Er Calibration error, maybe input data or loaded weight is incorrect, unstable, non-linear
d.-- The division will be displayed
px.y The x = parameter, y = parameter choice
7.3 Error Messages and Troubleshooting
Symptom Probable Cause Remedy
Ad------ Loadcell wires to indicator are incorrectly
Ad______
0------ Weight reading exceeds Power On Zero limit. Make sure scale platform is empty. Perform zero
0______ Weight reading below Power On Zero limit. Install platform on scale. Perform zero calibration.
-------- Weight reading exceeds Overload limit or the
________ Weight reading below under load limit. Install platform on scale. Perform zero calibration.
EEP.E2 Parameter is not correctly set. Re-set parameter
CAL.Er Calibration error. Input data or loaded weight is
Will not turn on. Power cord not plugged in or properly
Cannot zero the display
or will not zero when
turned on.
connected, shorted, opened, ADC or loadcell(s)
are damaged.
weight value cannot be displayed in the current
unit of measure because it exceeds 6 digits.
too small, too big, unstable, non-linear.
connected. Power outlet not supplying
electricity. Battery discharged. Other failure.
Load on scale exceeds allowable limits. Load
on scale is not stable. Load cell damage.
Make sure wires are ok and correctly connected.
Replace loadcell or ADC chip, Service required.
calibration.
Reduce load on scale until weight value can be
displayed. Use a more appropriate unit of measure.
Input correct data, load correct weight onto
platform, Service required.
Check power cord connections. Make sure power
cord is plugged into the power outlet. Check power
source. Replace batteries. Service required.
Remove load on scale. Wait for load to become
stable. Service required.
34 PS1000/2000 User Instructions
Page 37
Page 38
Brecknell USA
1000 Armstrong Dr.
Fairmont MN 56031
Tel:507-238-8702
Fax:507-238-8271
Email: sales@brecknellscales.com
http://www.brecknellscales.com
Brecknell UK
Foundry Lane,
Smethwick, West Midlands,
England B66 2LP
Tel:+44 (0) 8452 46 6717
Fax:+44 (0) 8452 46 6718
Email:
sales@brecknellscales.co.uk
http://www.brecknellscales.com
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