Declaration of Conformity
Professional Weighing Equipment
LBS SERIES Bench Scales
LARGE BENCH SCALE
Declaration of conformity for apparatus with CE mark:
We hereby declare that the product to which this
declaration refers conforms to the following standards.
Electronic scale: LBS Large Bench Scale
Imperial version
500 lb 227 kg
Mark applied EU Directive Standards
2004/108/EC EN 61326-1: 2006
Date: 14. 11. 2012
Signature:
Metric version
Operating Manual
1
Boon Lim, R & D Manager
3510 Industrial Drive, Unit H
Santa Rosa, CA 95403
LW Measurements LLC
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Identification
Introduction
Customer Service
USA
LW Measurements LLC,
3510 Industrial Drive, Unit H
Santa Rosa, CA 95403
USA
Tel: (707) 542-2185
FAX: (707) 542-3285
EUROPE
LW Measurements Europe Ltd
Chalkwell Park House 700 London Road
Westcliff-on-Sea Essex SS0 9HQ
United Kingdom
Tel: 01702-476700
Fax: 01702-477380
ASIA
LW Measurements PTY Ltd
Block 1004, Toa Payoh North
#03-16 Singapore 318995
Tel: (65) 6458 3438
HP: (65) 8119 3401
http://lwmeasurements.com
Please refer to our website for information about local
customer service centers and details of their addresses.
What you should know about these Operating
Instructions:
Tree® Professional Weighing Equipment products are simple
to operate.
Nevertheless, you should read through these operating
instructions in their entirety, so that you can make optimum
use of the full potential and the diverse possibilities of the
weighing machine in your daily work.
These operating instructions contain guidance in the form of
pictograms and keyboard diagrams, which should help you in
finding the required information:
For the labeling of potential hazards and advice, please see
Safety below.
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Contents
Section
Heading
1 Safety
2 Your weighing machine
3 Getting started with your weighing
4
Working with the application menu
5 Calibration
6 Maintenance and service
7 Transport, storage
1.1 Representation and symbols
1.2 Safety recommendations
2.1 Construction and functions
2.1.1 Construction of the weighing machine
2.1.2 Functions of the weighing machine
2.2 Application, conformity
2.2.1 Correct use of the weighing machine
2.2.2 Conformity
2.3 Data and parameters
2.3.1 Technical data
2.3.2 RS232 data interface
machine
3.1 Unpacking the equipment
3.2 Scope of delivery
3.3 Assembling your weighing machine
3.4 Choice of a suitable location
3.5 Checking the mains voltage
3.6 Calibrating the weighing machine
4.1 Display messages and key functions
4.1.1 Display messages
4.1.2 Key functions
4.2 Program options
4.2.1 Interface settings
4.2.2 Function settings
4.2.2.1 Setting auto shut-off
4.2.2.2 Setting backlight
4.2.2.3 Setting power-on mode
4.2.3 Working mode setting
4.2.4 Hold function
4.2.5 Peak hold mode
7.1 Transportation and shipping
7.2 Storage
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1 Safety
1.1 Representations and symbols
Important instructions, which involve safety, are highlighted
with the appropriate mark:
1.2 Safety recommendations
When using the weighing equipment in surroundings with
increased safety requirements, the corresponding regulations
must be observed:
The weighing machine may only be used with the power
adapter supplied exclusively for use with this weighing
machine.
Before inserting the power adapter, the user must ensure that
the operating voltage stated on the power adapter agrees with
the mains voltage.
If not, please contact Customer Service at the address above.
If the power adapter or its cable is damaged, the weighing
machine must immediately be disconnected from the
electricity supply (pull out the power adapter).
The weighing machine may only be operated from mains
electricity supply with a power adapter which is in perfect
condition.
If there should be any reason to believe that it is no longer
possible to operate the weighing machine without danger, the
weighing machine is to be immediately unplugged from the
electricity supply (pull out power adapter) and secured against
inadvertent operation.
In carrying out maintenance work, it is essential to follow the
recommendations in Chapter 6 Maintenance and service.
The weighing machine must not be operated in an area
subject to explosion risks.
Care must be taken when weighing liquids to ensure that no
liquid is spilled into the inside of the weighing machine or into
connections on the rear of the equipment or the power
adapter. If liquid is spilled on the weighing machine, it must
immediately be unplugged from the mains electricity supply
(pull out power adapter).
The weighing machine may only be operated again after it has
first been re-checked by a service technician.
These operating instructions must be read by each operator of
the equipment and must be available at the workplace at all
times.
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2 Your weighing machine
1
Standard carton
Master carton
Standard carton
Master carton
2.1 Construction and functions
2.1.1 Construction of the weighing machine
The weighing machine consists of (1) the indicator, (2), the
rectangular metal support tube, (3) the platform and base unit,
(4) the adapter and this operating manual.
Figure 2.1 Your weighing machine
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2.1.2 Functions of the weighing machine
The LBS Series are high-quality electronic precision weighing
machines with the following specifications:
1. Imperial weight unit version
Model number Capacity Division Weighing pan Size
LBS M-1-0613
Package
Package
Shipping weight 45 lbs
Operating
Temperature
Power Source
2. Metric weight unit version
Model number Capacity Division Weighing pan Size
LBS M-1-0613
Package
Package
Shipping weight 20.41 kg
Operating
Temperature
Power Source
500 lbs 0.1 lb 18 x 24 in
33 x 28 x 7 in³
1 unit / carton
41 - 95 ºF
Rechargeable batteries or AC/DC
Adapter 120V/500mA
227 kg 0.05 kg 45.72 x 60.96 cm
83.82 x 71.12 x 17.78 cm³
1 unit / carton
5 - 35 ºC
Rechargeable batteries or AC/DC
Adapter 12V/500mA
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Features
− Auto back light (selectable)
− Auto shut-off (selectable)
− Hold function
− Animal weighing mode
− Peak hold function
− AnyCal calibration software
− Selectable calibration unit: kg or lb
− RS232 function
− Can work as either an indicator or a display
− Three modes: Normal mode / Setting mode /
Internal Auto calibration mode
− Zero range: 0 to 10% of full capacity
− Tare range (10% to full capacity)
− 4.5 Ah rechargeable battery
− Display options: 5 digital LCD
− Power: AC adapter 10V 500mA
− Operating humidity: 25% - 95% of RH
− Error message indication:
Err-0 Overload
Err-5 Unstable when power is on
Err-c Calibration code insufficient
Low battery indication
The maximum allowable load of the weighing machine must
never be exceeded; otherwise the weighing machine may be
damaged.
When using the weighing machine in combination with other
appliances as well as with appliances produced by other
manufacturers, the appropriate regulations for the safe use of
the relevant attachments and their application in accordance
with instructions must be observed.
2.2 Application and Conformity
2.2.1 Correct use of the weighing machine
The weighing machine may only be used for the weighing of
solid-materials and of liquids in secure containers.
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2.2.2 Conformity
The weighing machine has been manufactured and tested in
accordance with the standards and recommendations set out
in the declaration of conformity.
The power adapter produced for the operation of the weighing
machine and intended exclusively for this application complies
with the appropriate electrical protection class.
2.3 Data and parameters
2.3.1 Technical data
The following applies to all LBS series weighing machines
Power supply:
. Input: 120 V AC (+/-15-20%); 50 to 60Hz
. Output: 10v DC 500mA
Allowable ambient conditions
Temperature: 41 - 95ºF 5°C - 35°C
Relative humidity: 25% - 85%, non-condensing
If you have any questions on the technical data or require
detailed technical information on your weighing machine,
please contact your technical representative.
2.3.2 RS232 Data interface
interface：
1：signal interface：（microphone socket
Red-E+（pos source）/ Yellow or Blue-S+（pos signal
Black-E-（neg source）/ White or GreenS-（neg signal
No sign -------GND
2：recharge battery socket
AC/DC 10V――――――external positive, inner negative
3：RS232 interface：DB9
：
）
）
）
RS232 TRANSMIT FUNCTION
1. RS232 interface：DB9
SCALE PC
RXD 2 2 RXD
TXD 3 3 TXD
GND 5 5 GND
2.
RS232 Transmission Agreement
Mode：Simplex Asynchronous Serial
Baud rate：9600
Data Bit：8
Parity Bit：NONE
Stop Bit：1
Data Format：ASCII
3. Transmission Information Format：20 Byte ，blank=20H
：
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1
6
1
7
1
8
1
9
2
0
C
R
L
F
M
=
o
v
e
r
l
o
a
d
m
o
d
e
r
m
a
t
i
o
n
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
C
R
L
F
0
k
g
.
0
3 Getting started with your
weighing machine
3.1 Unpacking the equipment
The machine is delivered in an environmentally-friendly
carton, specifically developed for this precision instrument,
which provides optimum protection for the machine during
transportation.
We suggest that you retain the original packaging in order to
avoid transportation damage if re-shipping or transporting the
weighing machine, and to allow the machine to be stored in
the best conditions if it is out of operation for an extended
period of time.
In order to avoid damage, attention must be given to the
following points when unpacking the machine:
− Unpack the weighing machine carefully. It is a
precision instrument.
− When outside temperatures are very low, the
weighing machine should first be stored for some
hours in the unopened transport package in a dry
room at normal temperature, so that no condensation
settles on the machine when unpacking.
− Check the weighing machine immediately after
unpacking for externally visible damage. If you should
find transport damage, please inform your service
representative immediately.
− If the machine is not to be used immediately after
purchase but rather at a later time, it should be stored
in a dry place where fluctuations in temperature are as
small as possible (see Chapter 7 Transport, storage.).
W= normal weighing mode
= weight information
:
Unit fo
5
Weight information
+
_
:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
W/M
50 kg
+
:
1 2 3 4 5 6 7 8 9 1
xampla:
W
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− Read through these operating instructions even if you
already have prior experience with weighing
equipment, before you work with the weighing
machine and pay attention to the Safety
recommendations (see Chapter 1 Safety).
3.2 Scope of delivery
Inspect delivery for completeness immediately upon
unpacking all components.
Checklist for complete delivery
Weighing unit with platter
Indicator
Stainless steel column
Six screws
2 washers, 2 nuts
Power adapter
Component delivered present
yes / no
3.3 Assembling your weighing machine
The weighing machine is delivered in a partly dismantled
condition. Assemble the individual components in the
following sequence:
− Place the unit base on a flat and level surface away
from water, condensation, direct heat and direct
sunlight.
− Fix the stainless steel column onto the base with the
four screws provided as shown in figure A-A.
− Next, fix the indicator on top of the stainless steel
column with the two screws, two washers and two
butterfly nuts provided as shown in figure B-B.
Operating manual
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3.4 Choice of a suitable location
The environment in which your weighing machine is used is
very important. Air movement, temperature changes,
vibrations, direct sunlight, etc. all influence the performance of
high precision weighing machines. Therefore, place your
weighing machine on a solid, sturdy surface that is free of air
currents, vibration and not in direct sunlight. The surface
should not be magnetic and should be located away from
doors, windows, heaters, air conditioners and fans.
To summarize:
− Put the weighing machine on a solid, firm and
preferably vibration-proof, horizontal base.
− Make sure that the weighing machine cannot be
shaken, bumped or knocked over.
− Protect from direct solar radiation at all times.
− Avoid drafts and excessive temperature fluctuations.
3.5 Checking the mains voltage
The following Safety recommendations must be observed
when connecting the weighing machine to the mains:
The weighing machine may only be operated with the power
adapter supplied.
Check before connecting the power adapter to the mains
supply, that the operating voltage stated on the power adapter
agrees with the local mains voltage.
If the operating voltage is not the same as the mains voltage,
the power adapter must, on no account, be connected to the
mains supply. Contact your customer service representative.
3.6 Calibrating the weighing machine
Since the Earth’s gravity is not the same everywhere, each
weighing machine must be adjusted to compensate for the
gravity differences at each location in accordance with the
underlying physical weighing principles. The adjustment
process, known as calibration, may need to be carried out on
initial installation and after each subsequent relocation.
In order to ensure exact measurements, it is recommended
that the balance should be calibrated regularly using a known
external calibration weight (see Section 5 below).
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Working with the application menu
4.1 Display messages and key functions
4.1.1 Display messages
Low battery indicator
Negative value indicator
Zero value indicator
NOTE: When the low battery indicator is orange, you
should recharge the battery for 8-10 hours. Once
charged, the orange light will turn green. Over-charging
may cause permanent damage.
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4.1.2 Key functions
- ON-OFF key turns the weighing machine on/off.
-
HOLD key stores the weight value.
- ZERO (for TARE) is a ZERO feature if the load is below
10% of full capacity or is a negative value. It is a TARE
feature if the load is between 10% and full capacity. It
has a multiple tare function, but the total weight before
and after TARE must be less than full capacity.
-
The PRINT key is used to send data to an external
device though the RS232 connector.
4. 2 Program options
Please see our website at http://lwmeasurements.com for
practical demonstrations of application usage.
4.2.1 Interface Settings
−
Press and hold the HOLD key, and then press the
ON/OFF key to turn on the weighing machine; display
will show A-ON or A-OFF.
−
Press the UNIT key, the display will show “L-ON” or
“L-OFF
− Press the UNIT key again, display will show “P-XX”
− Press ZERO key to select CON, OFF, KEY, STB
a) OFF means the serial data output is disabled
b) KEY means manual mode , press the [PRINT] key to
c) STB means data will automatically print when the
d) CON means data will continuously print
print
weighing machine is stable
e) Press the ON/OFF key to turn of the machine
4.2.2 Function settings
4.2.2.1 Setting auto Shut-off
Press and hold HOLD key, then press ON/OFF key to turn on
the weighing machine, display will show “A ON” or “A OFF”,
Press ZERO key to select Auto shut off mode
“ON” or “OFF”.
4.2.2.2 Setting backlight
Press and hold HOLD key, then press ON/OFF key to turn on
the weighing machine, display will show “A ON” or “A OFF”,
Press UNIT key, display will show “L ON”, “L OFF” or “L AU”,
press ZERO key to select back light On, Off or Au (auto).
4.2.2.3 Setting Power-on mode
Press and hold HOLD key, then press ON/OFF key to turn on
the weighing machine, display will show “A ON” or “A OFF”,
Press UNIT key three times, display will show “J ON” or “J
OFF”, press ZERO key to select “J ON” (means showing zero
when machine is turned on) or “J OFF” (means showing the
weight placed when the machine is turned on).
4.2.3 Working mode setting
− Press the UNIT key, display will show F-Nor or F-PEA
or F-Ani. Press the ZERO key to select Nor, PEA or
Ani.
a) NOR means the normal weighing function is activated.
b) PEA means the peak hold weighing function is
activated.
c) ANI means the animal weighing function is activated.
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− Press the UNIT key, the display will show N-dsp or NInd. Press the ZERO key to select dsp or Ind. (dsp
means it can display synchronously as a displayer for
another indicator through the RS232 socket. Ind
means it is only an indicator for the weighing machine).
− Press the UNIT key, the display will show Kd 50 or Kd
100 or Kd 200 or Kd 400. Press the ZERO key to
select the animal scale anti-shock range among 50,
100, 200 or 400.
− Press the UNIT key, the display will dhow Fd 0.5 or Fd
3 or Fd 5 or Fd 10. Press the ZERO key to select the
animal scale filter range among 0.5, 3, 5, 10.
− Press the UNIT key, the display will show Ft 1 or Ft 2
or Ft 3 or Ft 4. Press the ZERO key to select the
animal scale filter time among 1s ,2s, 3s, 4s.
− Press the UNIT key, the display will show U-on or Uoff. Press the ZERO key to select. U-on means you
can switch units between kg and lb. U-off means that
NOTE: Kd, Fd, Ft work only in the F-Ani mode.
the lb unit will be disabled.
4.2.4 Hold function
- Press ON/OFF key to turn on the weighing machine,
then place the item on the platform.
- Wait for the readings to become stable, press HOLD key,
the “
.
“ indicator will show.
- Remove the item from the platform, the readings will
still remain on the display. Now you can select Unit
(pounds or kilograms) by pressing the UNIT key.
NOTE: lb cannot be selected if lb was disabled in the
Function setting – Working mode Sec 4.2.3).
- Press HOLD key to quit hold function mode and return
the machine to weighing mode.
4.2.5 Peak Hold mode
- In Working mode settings (Section 4.2.3) choose F-PEA.
PEA means that the peak hold weighing function is
activated.
- Before weighing, press the HOLD key.
5 Calibration using an external
calibration weight
Note: Calibration may be required when the weighing
machine is initially installed or if it has been moved a
substantial distance. The weighing machine should be
allowed to warm up for 30 minutes before calibration.
A reminder when operating our larger capacity weighing
machines:
The weighing machines of the LBS series are calibrated at the
factory. Usually no recalibration is necessary unless major
inaccuracies are observed. If calibration is deemed necessary,
an appropriate test weight of at least 2/3 of the full capacity of
the scale should be used to obtain accurate weighing.
− Press and hold the ZERO key, and then press the
ON/OFF key to turn the weighing machine on. The
display will show CAPU=. Press the UNIT key to
select full capacity unit kg or lb (
selected if lb was disabled in
Working mode Sec 4.2.3).). Press the HOLD key to
confirm your selection.
lb cannot be
the Function setting –
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− Press the HOLD key again to enter the next menu, the
display will show CAP. Press the UNIT key to select
full capacity. Press the UNIT key to move the flashing
digit to the right, press the ZERO key to increase the
flashing digit, and press the HOLD key to confirm the
selection.
− Press the HOLD key again to enter the next menu, the
display will show CALU=. Press the UNIT key to
select calibration unit kg or lb (lb cannot be selected if
lb was disabled in the Function setting – Working
mode Sec 4.2.3). Press the HOLD key to confirm the
selection.
− Press the HOLD key again to enter the next menu, the
display will show CAL. Press the UNIT key to set the
calibration weight. Press the UNIT key to move the
flashing digit to the right, press the ZERO key to
increase the flashing digit. Press the HOLD key to
confirm the selection. NOTE: The calibration weight
should be more than 2/3 of the full capacity.
− Press the HOLD key again to enter the next menu, the
display will show DIV. Press the UNIT key to select
division. Press the HOLD key to confirm the
selection.
− Press the HOLD key again to enter the next menu, the
display will show Adb. Press the UNIT key to select
(19.20). Press the HOLD key to confirm the selection.
− Now start the calibration following the next steps:
− Press the PRINT key, the display will show CAL and
then the AD value. Press the UNIT key when the
stable indicator light is displayed, it will show the
flashing calibration weight.
− Place the known test weight on the platform, press the
UNIT key after the stable indicator light is displayed, it
will show ------, and then the AD value.
− Turn off the weighing machine, remove the test weight
from the platform.
− Press ON/OFF key to turn the machine on to test if
the weighing is accurate, if not, repeat above steps.
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6 Maintenance and service
7 Transport, storage
The weighing machine must be treated carefully and cleaned
regularly. It is a precision instrument.
For maintenance-work, the weighing machine must be
separated from the power supply (remove power adapter plug
from the socket). Also ensure that the machine cannot be
reconnected to the power supply during the work by a third
party.
Take care during cleaning that no liquid penetrates into the
weighing machine. If liquid is spilled on the machine, the latter
must immediately be disconnected from the electricity supply.
The machine may only be used again after it has first been
checked by a service engineer.
The connections on the rear of the appliance and the power
adapter must not come into contact with liquids.
Regularly remove the weighing platter and remove any dirt or
dust from under the platter and on the weighing machine
housing with a soft brush or a soft, lint-free cloth, moistened
with a mild soap solution. The platter can be cleaned under
running water.
Take care that the platter is completely dry before it is reinstalled on the weighing machine.
Never use solvents, acids, alkalis, paint thinners, scouring
powders or other aggressive or corrosive chemicals for
cleaning, since these substances attack the surfaces of the
scale housing and may cause damage.
7.1 Transportation and shipping
Your weighing machine is a precision instrument. Treat it
carefully. Avoid shaking, severe impacts and vibration during
the transportation.
Take care that there are no marked temperature fluctuations
during the transportation and that the weighing machine does
not become damp (condensation).
7.2 Storage
If you would like to take the weighing machine out of service
for an extended period, disconnect it from the electricity
supply, clean it thoroughly (see Section 6.Maintenance and
servicing.) and store it in a place which meets the following
conditions:
− No violent shaking, no vibrations
− Minimum temperature fluctuations
− No direct solar radiation
− Minimum moisture
The weighing machine should preferably be dispatched,
transported and stored in the original packaging to avoid any
damage. This provides optimal protection for the weighing
machine.
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