Lidén Weighing LUW2001/LBW User manual

User manual for
LUW2001/LBW

1
Warning
Ask professional personnel to debug, detect
and repair controller.
Warning
Please keep good grounding of controller.
Warning
In electrical connection of controller, please cut off the power
supply in advance. Wait for 30 seconds between power-on of the
controller for 2 times.
Pay Attention to Static Electricity

2
Contents
I TECHNICAL INDICATORS..........................................................................................3
II MAIN FUNCTION......................................................................................................3
III BOUNDARY DIMENSION .......................................................................................3
IV INTRODUCTION TO PANEL....................................................................................4
V. PARAMETER SETTING .............................................................................................6
SETTING ENTRY:..................................................................................................................................6
PARAMETER SETTING OF F1 SCALE ...................................................................................................6
F2 APPLICATION FUNCTION SETTING ..............................................................................................8
F3 ENERGY-SAVING PARAMETER SETTING......................................................................................9
F4 SERIAL-PORT SETTING ................................................................................................................9
F5 MAINTENANCE AND SERVICE ....................................................................................................10
VI FUNCTION DESCRIPTION ....................................................................................11
APPENDIX 1. CONTINUOUS OUTPUT FORMAT SPECIFICATION ........................15
APPENDIX 2. PRINTING FORMAT SPECIFICATION ...............................................17

3
I Technical Indicators
● 6-digit 1.2-inch LED display, 7 state indicator lamps. Long service life and
shock resistance
● 7 function keys. Operation is simple and convenient
● Protection level: IP5x
● Excitation voltage: +5VDC
● Load capacity of sensor: at most 4 350Ω simulation sensors
● Input signal range of null point: 0-5mV
● Input signal range of full scale: 1-10 mV
● Inner resolution: 1 million
● Weight upgrading rate: 40 times per second
● Power supply mode
Battery: 6V4Ah
Adapter: voltage 100-240VAC Current 0.1A Frequency 50-60Hz.
● 2 RS232 ports
● Operating temperature: -10℃-40℃, relative humidity is below 85 %
● Storage temperature: -20℃-60℃, relative humidity is below 85 %
● Conforming to standard: GB/T 7724-1999
II Main Function
● Basic weighing function: resetting, removing the peel and clearing the peel
● Weight detection function, counting function, animal scale function
● Weight keeping function, weight accumulation function, percentage display
● Set redundant backup function of parameters
● Automatic screen protection and automatic shutdown energy-saving function
● Rich printing formats and communication protocol
III Boundary Dimension
Instrument size: detailed in the following figure (mm); instrument weight:
1.5kg

4
IV Introduction to Panel
● Introduction to indicator lamps
Identifi
catio
n
Analysis
Remark
～
Dynamic and static
indication
The lamp is on when scale is in dynamic
state, otherwise, the lamp is off
Zero center indication
The lamp is on when the absolute value of
weight on the scale is less than ±0.2d,
otherwise the lamp is off
Net
Identification of gorses
weight and net weight
The lamp is on in net weight and off in
gross weight
lb
Weight unit
For indicating current unit
kg
Hold
Weight maintenance
The lamp is on when the weight is locked,
otherwise it is off

5
Ac
Voltage indication of
battery and power supply
The green lamp is on when the voltage of
the adapter and battery is normal, and the
red lamp is on in undervoltage state
●Introduction to operation keys
Operation without special specification refers to short press on keys.
Key
symbol
Normal weighing state
Set stage
Weight maintenance key
Short press→ F2.1 = 1, keep/cancel.
F2.1 = 2, switch between percentage
and weight.
F2.1 = 5, switch between quantity
and weight.
Long key→ enter setting menu.
Return to the last
m
en
u.
Accumulation key
Short key → F2.1 = 4, include display weight
in accumulation value.。
Long key → F2.1 = 3, select scale to sample
target weight.
F2.1 = 4, accumulate weight of scale
display.
F2.1 = 5, count sampling of scale.
No definition.
Unit conversion key
Short key → in weighing state, switch weight
unit. The corresponding unit
indication lamp is on.
Flicker bit is on the
left.
Skin removal key
Short key → net weight turns to gross weight;
induction lamp of net weight “Net” is off.
Flicker bit is on the
right.
Skin removal key
Short key →gross weight turns to net weight.
Indication lamp of net weight “Net” is on.
Conduct skin removal operation for multiple
times.
Digit flicker
position reduces.

6
Zero clearing key
Gross weight state resets weight. When the
scale is in net weight, dynamic state, saving
state and out of resetting range, zero clearing
operation is invalid.
In setting, digit of
flicker position
increases. In
adjustment of
display,
accumulation is
cleared.
Printing key
Short key → start up or print.
Printing format refers to Appendix1.
Long key → shut down.
Confirm operation,
to save setting
data.
V. Parameter Setting
Setting entry:
Press the [Hold] button on the operating panel in the state of normal
weighing.
If F1.14 = 0, you can set all the parameters within F1~F5.
If F1.14 = 1, you can only set all parameters within F2~F5.
If F1.14 = 1 and you need to set the parameters within F1 menu, you
can press the calibration switch button until the F1 menu is entered.
Parameter Setting of F1 Scale
F1.1 Measuring Range
Selectable parameters: 3~200000 (default value: 6)
F1.2 Decimal Places
Selectable parameters: 0 ---- no decimal point
0.0 ---- 1 decimal place
0.00 ---- 2 decimal places
0.000 ---- 3 decimal places (default
value)
0.0000 ---- 4 decimal places
F1.3 Number of Divisions
Selectable parameters: 1 (default value), 2, 5, 10, 20,

7
50
F1.4 Calibration Unit
Selectable parameters: 0 ---- kg (default value)
1 ---- lb
F1.5 Gravitational Acceleration
Selectable parameters: 9.70000～9.99999. Default value =
9.79455.
F1.6 Null-point Calibration
【 】 Keeping empty the scale
Remove the weights on the weighing platform to
guarantee the scale is in the empty state. Press the
[Print] key and the meter will display [ ].
The displayed digits will reduce slowly until the
meter displays [ ]. In the end it will display
[ ] for one second, which indicates the end
of null-point calibration.
F1.7 Load-point Calibration
【 】 Loading weights
Load weights on the weighing platform to ensure
that 10% of full-scale value ≤ weight of weights
≤ full-scale value, and then press the [Print] key
to start the next step.
【 】 Entering the same weight value as that of the loaded
weights.
Entering the same weight value as that of the loaded
weights, please press the [Print] key after the scale
becomes stable, and the meter will display [ ].
After that, the displayed digits will reduce slowly until
the meter displays [ ]. In the end it will display
[ ] for one second, which indicates the end of null-
point calibration.
F1.8 Automatic Null Tracking
Selectable parameters: OFF, 1 d, 2 d, 3 d (default value)
F1.9 Automatic Reset Range at Startup
Selectable parameters: OFF, 2 %, 10 %, 20 % (default value)
F1.10 Button Reset Range
Selectable parameters: OFF, 2 %, 10 % (default value), 20 %
F1.11 Digital Filter

8
Selectable parameters: 0 ---- Mild Filtering
1 ---- Moderate Filtering (default value)
2 ---- Severe Filtering
F1.12 Steady Range
Selectable parameters: 1 d, 2 d, 3 d (default value)
F1.13 Overload Display Range
Selectable Parameters: 9d, 5% (default value), 10%, 20%
F1.14 F1 Menu Protection
Selectable Parameters: 0 ---- Enter F1 menu by keyboard
operation
1 ---- Enter F1 menu by pressing the
calibration button
F1.15 Restoring Factory Default
Set the parameters within F1~F4 as the defaults, which can’t
impact the parameters of standard scale.
F2 Application Function Setting
F2.1 Function Selection
Selectable Parameters: 0 ---- Close the application functions (default
value)
1 ---- Weight keeping function
2 ---- Percentage display function
3 ---- Weight checking and sorting
function
4 ---- Accumulative scale function
5 ---- Counting scale function
6 ---- Animal scale function
F2.2 Empty-scale threshold value
Selectable Parameters: 0~ full range (default value: 0.001)
F2.3 Target Weight for Weight Checking and Sorting
Selectable Parameters: 0~ full range (default value: 2.000)
F2.4 Positive Error for Weight Checking and Sorting
Selectable Parameters: 0~ full range (default value: 0.100)
F2.5 Negative Error for Weight Checking and Sorting
Selectable Parameters: 0~ full range (default value: 0.100)

9
F2.6 Access to Target Weight for Weight Checking and Sorting, and
Counting Sample Weight
Selectable Parameters: 0 ---- Access to Platform Weighing (default
value)
1 ---- Manual Input Access
F3 Energy-saving Parameter Setting
F3.1 Time-out Screensaver Time Setting
Selectable Parameters: 0~ 99 minutes, (default value: 30 minutes)
If set to be 0, this function shall not be allowed.
During the screen protection, the display will randomly show “ ”.
F3.2 Energy-saving Time Setting for Auto Power-off
Settable Parameters: 0~250 minutes. (default value: 150 minutes)
If set to be 0, this function shall not be allowed.
F3.3 Display Brightness Control
Selectable Parameters: 0---- low light level
1 ---- middle light level (default value)
2 ---- high light level
F4 Serial-port Setting
F4.1 Setting of UART0 Communication Interface Parameter
F4.1.1 Communication Mode
Selectable Parameters:
0 ---- no output (default value)
1 ---- continuous output protocol A
2 ---- continuous output protocol B
3 ---- continuous output MT
4 ---- firm output protocol A
5 ---- firm output protocol B
6 ---- key dispatch protocol A
7 ---- key dispatch protocol B
F4.1.2 Setting of Data and Check Pit
Selectable Parameters: 8_N_1 ---- 8-pit no parity check (default
value)
7_E_1 ---- 7-pit odd parity check

10
7_O_1 ---- 7-pit even parity check
8_E_1 ---- 8-pit odd parity check
8_O_1 ---- 8-pit even parity check
F4.1.3 Baud Rate
Selectable Parameters: 1200, 2400, 4800, 9600 (default
value)
F4.1.4 Continuous Output & Delivery Parity Check and Character (only for
F4.1=3)
Selectable Parameters: 0 ---- no delivery (default value)
1 ---- delivery
F4.1.5 Bluetooth Node Setting (effective only when Bluetooth
module option is configured)
Selectable Parameters: HoLi01~HoLi99 (default value:
HoLi01)
F4.2 Parameter Setting of UART1 Printing Interface
F4.2.1 Whether to connect the printer
Selectable Parameters: 0 ---- not connected to the miniprinter
(default)
1 ---- connected to the miniprinter
F4.2.2 Printing Carriage Return Character
Selectable Parameters: 0~9 carriage return characters
(default value: 3)
F4.2.3 Printing Setting of Accumulative Scale
Selectable Parameters: 0 ---- total accumulative data for
printing (default value)
1 ---- printing detail + total
accumulative data
F5 Maintenance and Service
F5.1 Key test
Instrument display 【 】, press『Print』, 『Zero』, 『Tare』,
『Gross』, 『lb/kg』 and 『Total』 in order, and the instrument
displays 【 】, 【 】, 【 】, 【 】, 【 】

11
and 【 】, press 『Hold』 to quit key test.
F5.2 Display screen test
All strokes of meter display will have self-inspection, to observe
whether there is lacks of strokes.
Press 『Hold』 or 『Print』 to quit test of display screen.
F5.3 Display current internal code
The display will show internal code of current instrument after
smoothing. Press 『Hold』 or 『Print』 to quit the interface.
VI Function Description
● Weight maintenance function F2.1 = 1
Operation method
In normal weighing state, press 『Hold』 on the operation panel, the
will instrument lock display weight of the current scale, and “Hold”
indication lamp is on. Only when weight setting value≥F2.2 is
displayed, weight maintenance operation is effective. Otherwise, it
will return to weighing state after invalid operation information
【 】 is shown for a second.
If weight is in locked state, press 『Hold』 again to cancel locking of
weight and return to normal weighing state, and “Hold” indication
lamp is off.
If it is in weight locking state, refuse to remove skin, clear skin and
zero setting operation.
● Percentage display F2.1 = 2
Display specification
Display【 】, representing 20.5 %.
Pr = current actual weight / range ×100%.
Press 『Hold』 to display switch in percentage and weight.
● Check weight and selection scale function F2.1 = 3
Function description
Set parameters such as F2.2 = A, F2.3 = B, F2.4 = C and F2.5 = D.
When display weight is X.

12
If X ≤ A, do not conduct check weight and selection. 不
If X ＜ (B – D), it lacks of weight, and the display flickers.
If (B – D) ≤ X ≤ (B – C), it is qualified and the display has normal display
If X ＞ (B – C), it is overweight and the display flickers.
Acquisition of target value
Press 『Total』 long until the display shows【TARGET】, and then
press『Print』to show current target value and flicker.
If F2.6 = 0, press 『Print』, the instrument will take the weight on current
scale as the new target value and quit the setting interface.
If F2.6 = 1, the display shows 【 】, to request manual change of
target value. After change, press 『Print』 to save setting data and quit setting
interface.
● Function of accumulation scale F2.1 = 4
Operation method
In normal weighing state, when the scale is in zero, add weight to the
scale and press『Total』 on operation panel, if the display shows
【 】 progress bar, it indicates that the current display weight
is included accumulated value, and then it returns to normal weighing
state. If the display shows【 】 for a second, and returns to the
normal weighing state, it indicates operation is invalid. Reason: 1.
Between two accumulation operations, the scale must have back-to-
zero process, otherwise, accumulation is refused. 2. Accumulation
operation is effective only when display weight≥F2.2 is set. 3. The
scale is in dynamic state.
Adjustment, clearing and printing of accumulated value
In normal weighing state, press 『Total』 on operation panel for more
than 2 seconds, the display will show 【 】 for a second, and
then the display shows current total accumulated value 【 】
and flickers. To clear accumulated value, press 『Zero』, to make flicker
weight be 0. Press 『Print』 to print accumulated data. Press 『Hold』
to quit the interface.
Attention: set whether to be over detailed data or accumulated data in
F4.6.

13
● Function of counting scale F2.1 = 5
Instrument display
【 】, showing current quantity.
Sampling method
1. Check whether the scale is in zero, if not, press 『Zero』 for zero
setting.
2. Place materials counted on the scale.
3. Press 『Total』 long until the display shows 【 】, and then
press 『Print』. If F2.6 = 0, the display shows【 】. Input the quantity
counted just now, and press 『Print』 for confirmation. The instrument saves
sampling data and quits the sampling interface. If F2.6 = 1, the display shows
【 】, input sample weight. Press 『Print』, the instrument saves setting
data and quits sampling setting interface.
4. In this function, press『Hold』 to display switch between quantity and
weight.
● Function of animal scale F2.1 = 6
Operation method
In normal weighing state, place the animal on the weighing platform and
its weight must be ≥threshold value set in F2.2. Press 『Total』, instrument
will collect data sampling. After sampling, the average value of sampling data
will be locked, showing A X.XXX. Press『Print』 to print; press 『Hold』
or 『Total』 to quit the interface.
●VII Prompt Message of Instrument
The instrument has extremely high stability and reliability, thus is not easy to 具有极
have error in general situation. Once an error occurs, please make clear the error first
and observe whether the instrument still has error after power-on. Do not hurry to
repair the scale body or instrument. Repair the instrument according to error code of
the instrument as possible.
No.
Symbol
Analysis
Treatment Method
1
【 】
【 】
Unable to reset after startup
1. Determine it is no-load state
in startup;
2. Make zero calibration again.

14
2
【 】
The weighed object is over
full range for 9 days
Reduce weight on weighing
platform
3
【 】
The weighed object is
below 0 for 5 days
Press 『Zero』 to reset
4
【 】
【 】
Out of zero clearing range
Check whether the weighing
platform has weight.
Remove weight.
5
【 】
Invalid operation
6
【 】
EEPROM checksum and
error
Press 『Print』 reprint factory
value. Start up again. If the
information occurs again, return
to factory for repair. Please
calibrate the scale again if the
situation does not occur;
Attention: this place is provided
with all parameters of
instruments of the factory.
7
【 】
The calibration input
weight is too small
Input≥10 % weight of full range
8
【 】
The weight in calibration is
too light
Load≥10% weight of full range
9
【 】
The scale is dynamic in
scale
Inspect the scale body
10
【 】
Setting error of date and
time
Set according to specification of
date and time
11
【 】
Error of AD initialization
If the error occurs after restarting,
return it to the factory for repair
12
【 】
In loading scale, it indicates
to loading weight;
Load weight according to
requirements;
13
【 】
It has enters menu setting
Press 『Print 』 to continue
setting.
14
【 】
End of zero point and
loading point calibration
15
【 】
Including current display
weight in accumulated
value
16
【 】
Accumulated weight
Clear accumulated weight in time

15
overflows
17
【 】
Loading default value
18
【 】
Printing
Appendix 1. Continuous Output Format Specification
1. Continuous output MT format
Continuous output MT format has 18 digits.
Continuous output format
ST
X
A
B
C
X
X
X
X
X
X
X
X
X
X
X
X
C
R
CK
S
1
3
6
6
1
1
Where
1. <STX> ASCII（02H）
2. Status word: A, B, C
3. Display weight, possibly gross weight or net weight, 6 digits without
symbol or decimal point.
4. Tare weight, 6 digits without symbol or decimal point
5. <CR> ASCII carriage return (ODH)
6、<CKS> optional checksum and (no output in F4.2.3 = 0)
Status word: A, B, C.
Status word A
Bit 0
Bit 1
Bit 2
Position of decimal
point
0
1
0
1
0
1
1
0
0
1
0
0
1
1
1
XXXXXX
XXXXX.X
XXXX.XX
XXX.XXX
XX.XXXX
Bit 3
Constant 0
Bit 4
Constant 1
Bit 5
Constant 0
Bit 6
Constant 1
Bit 7
Constant 0/check bit

16
Status word B
Bits
Function
Bit 0
Gross weight = 0, net weight = 1
Bit 1
Symbol: positive = 0, negative = 1
Bit 2
Overload (upper and lower overload) = 1
Bit 3
Static = 0, dynamic = 1
Bit 4
Constant 1
Bit 5
Constant 1
Bit 6
Constant 0
Bit 7
Constant 0/check bit
Status word C
Bits
Function
Bit 0
Unit: kg = 0, lb = 1
Bit 1
Constant 0
Bit 2
Constant 0
Bit 3
Constant 0
Bit 4
Constant 1
Bit 5
Constant 1
Bit 6
Constant 0
Bit 7
Constant 0/check bit
2. Continuous output A format
The data transmitted by continuous output protocol A is present display weight.
Gross weight format: ww0000.000kg or ww0000.000lb
Net weight format: wn0000.000kg or wn0000.000lb
Example: gross weight of 15.000kg
w
w
0
0
0
1
5
.
0
0
0
k
g
0
d
0a
Net weight of 15.000kg
w
n
0
0
0
1
5
.
0
0
0
k
g
0
d
0a
Gross weight-15.000kg
w
w
-
0
0
1
5
.
0
0
0
k
g
0
d
0a

17
Note: the above position of the decimal point is determined according to that
in the instrument.
3. Continuous output B format
Continuous output agreement B format:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
HEAD1 , HEAD2 , DATA UNIT
CR/LF
HEAD1：OL Upper overload or lower overload, or no zero clearing in
startup;
ST the scale is in stable state;
US the scale is in unstable state;
HEAD2：GS gross weight；
NT net weight；
DATA：instrument display data；
UNIT：kg or lb；
CR/LF：new line.
Example 1：in stale state, gross weight is 18.000kg. sp = space.
S
T
,
G
S
,
sp
sp
1
8
.
0
0
0
k
g
0
d
0a
Example 2：in unstable state, net weight is -0.200kg. sp = space.
U
S
,
N
T
,
-
sp
sp
0
.
2
0
0
k
g
0
d
0a
Appendix 2. Printing Format Specification
F2.1 = 0, 1, 4, 6，print current resetting, press『Print』.
F2.1 = 1 weight maintenance function:
REPORT
------------------------
Gross 0.200kg
Tare 0.000kg
Net 0.200kg

18
Weight is not in maintenance state: Weight is in maintenance state:
or
F2.1 = 3 selection, check weight, press 『Print』:
Underweight Qualified Overweight
F2.1 = 4 accumulation scale, print detailed statement or format of total
weight:
Print details and total weight Only print total weight
F2.1 = 5 counting scale, press『Print』:
REPORT
-----------------------
Gross 1.980kg
State Less
REPORT
-----------------------
Gross 2.000kg
State OK
REPORT
-----------------------
Gross 2.020kg
State Over
REPORT
----------------------
Gross 0.547kg
Amount 55
REPORT
----------------------
Gross 25.000kg
Status Hold
REPORT
------------------------
Gross 0.200kg
Tare 0.000kg
Net 0.200kg
REPORT
----------------------
Net 25.000kg
Status Hold
REPORT
-------------------------
1 0.200kg
2 0.175kg
3 0.347kg
4 0.375kg
-------------------------
Total 1.097kg
REPORT
-------------------------
Total 1.097kg