VET Scales
Professional Weighing
Equipment
LVS / LVS-XL LC-VS
Operating Manual
1
Mark applied
EU Directive
Standards
2004/108/EC
EN 61326-1: 2006
Imperial version
Metric version
LVS 700
LVS 350k
LVS-XL 700
LVS-XL 350k
LC-VS 400
LC-VS 180k
Declaration of Conformity
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: Vet Scales series
Date: 14. 11. 2012 Signature:
Boon Lim, R & D Manager
LW Measurements LLC, 3510 Industrial Drive, Unit H Santa Rosa, CA 95403
2
Identification
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
Refer to our website for information about local customer service centers and details of their
addresses.
3
Introduction
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 labelling of potential hazards and advice, please see Safety below.
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Contents
Section
Heading
1
Safety
1.1 Representation and symbols
1.2 Safety recommendations
2
Your weighing machine
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
3
Getting started with your weighing 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
Working with the application menu using the intelligent keypad
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 setting
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
5
4.2.3 Working mode setting
4.2.4 Hold function
5
Calibration using an external calibration weight
6
Maintenance and service
7
Transport and storage
7.1 Transportation and shipping
7.2 Storage
6
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 the
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 spilt into the inside of the weighing
machine or into connections on the rear of the equipment or the power adapter. If liquid is spilt 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
Figure 2.1 Your weighing machine
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2
1
3
2.1 Construction and functions
2.1.1 Construction of the weighing machine
The weighing machine consists of the weighing platform (1), the indicator (2), Rubber Mat (3), the adapter
(4) and this operating manual.
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2.1.2 Functions of the weighing machine
Model number
Capacity
Graduation
Weighing Platform Size
LVS 700
700 lb
0.2 lb
38 x 20 inches / 96 x 50 cm
LVS-XL 700
700 lb
0.2 lb
44 x 22 inches / 111 x 56 cm
LC-VS 400
400 lb
0.1 lb
38 x 20 inches / 96 x 50 cm
Net/gross weight
LVS 700: 40 lb / 53 lb (18 kg / 24 kg)
LVS-XL 700: 44lb / 48lb ( 20kg / 22kg)
LC-VS 400: 24 lb / 31 lb (11 kg / 14 kg)
Package
(Standard carton)
LVS 700 / LC-VS 400: 117 x 63 x 13 (cm3)
LVS-XL 700: 131 x 69 x 13 (cm3)
Operating Temp.
0-40℃ (32-104℉)
Power source
6 x AA dry cells(not included) or AC/DC
Adapter 9V DC /100mA
The VET Scale Series are high-quality electronic precision weighing machines with the following
specifications
a. Imperial weight unit version
9
b. Metric weight unit version
Model number
Capacity
Graduation
Weighing Platform Size
LVS 350k
350 kg
0.1 kg
38 x 20 inches / 96 x 50 cm
LVS-XL 350k
350 kg
0.1 kg
44 x 22 inches / 111 x 56 cm
LC-VS 180k
180 kg
0.05 kg
38 x 20 inches / 96 x 50 cm
Net/gross weight
LVS 700: 40 lb / 53 lb (18 kg / 24 kg)
LVS-XL 700: 44lb / 48lb ( 20kg / 22kg)
LC-VS 400: 24 lb / 31 lb (11 kg / 14 kg)
Package
(Standard carton)
LVS 700 / LC-VS 400: 117 x 63 x 13 (cm3)
LVS-XL 700: 131 x 69 x 13 (cm3)
Operating Temp.
0-40℃ (32-104℉)
Power source
6 x AA dry cells(not included) or AC/DC
Adapter 9V DC /100mA
FEATURES
Selectable auto backlight
Selectable auto shut-off
Display options: 5 digital LCD
ZERO range ( 0% - 4% of full capacity)
TARE range ( 4% - 100% of full capacity)
Hold function
Animal weighing mode
AnyCal calibration software
Selectable calibration unit: kg or lb
RS232
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2.2 Application, conformity
2.2.1 Correct use of the weighing machine
The maximum allowable load of the weighing machine must never be exceeded, otherwise the weighing
machine may be damaged.
In 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.
2.2.2 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 VET Scale series
Power supply:
. Input: 110 or 230V AC (+/-15-20%); 50 to 60Hz
. Output: 9V DC 100mA
Allowable ambient conditions
Temperature: 5°C - 40°C
Relative humidity: 25% - 85%, non-condensing
If you have any questions on the technical data or require detailed technical information on your balance,
please contact your technical representative.
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2.3.2 RS232 Data interface
1~2 3 4~13
14~18
19
20
‘W: ’ P DATA
UNIT
CR
LF
1. Connector: DB9
SCALE PC
2 2
3 3
5 5
2. Transmissions Settings
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
W: Start of Data Transmission=57H+3AH
P : Polarity ‘+’ = 2BH = Positive ‘-’ = 2DH =Negative
DATA: ‘ 12.345’= 20H+20H+20H+20H+31H+32H+2EH+33H+34H+35H
UNIT: ‘lb’ =6CH+62H+20H+20H+20H
‘kg’ =6BH+67H+20H+20H+20H
CR: = 0DH
LF: = 0AH
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3 Getting started with your weighing machine
Component delivered present yes / no
Weighing unit body
Rubber mat
Weighing pan
Power adapter
Operating manual
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 balance during transportation.
We suggest that you retain the original packaging in order to avoid transportation damage if re-shipping
or transporting the balance and to allow the unit to be stored in the best conditions if it is out of operation
for an extended period.
In order to avoid damage, attention must be given to the following points when unpacking the balance:
Unpack the weighing machine carefully. It is a precision instrument.
When outside temperatures are very low, the balance 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
unit 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 unit is not to be used immediately after purchase but only 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.).
Read through these operating instructions, even if you already have prior experience with weighing
equipment, before you work with the unit and pay attention to the Safety recommendations (see Chapter
1 .Safety).
3.2 Scope of delivery
Inspect delivery for completeness immediately on unpacking all components.
Checklist for complete delivery
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3.3 Assembling your weighing machine
The weighing machine is delivered in partly dismantled condition. Assemble the individual components in
the following sequence:
Place the unit holder in position.
Insert the power adapter cable plug into the socket at the rear of the balance.
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 or knocked over
Protect from direct solar radiation
Avoid drafts and excessive temperature fluctuations
3.5 Checking the mains voltage
The following Safety recommendations must be observed when connecting the balance to the mains:
The balance 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 customer service.
3.6 Calibrating the weighing machine
Since the Earth’s gravity is not the same everywhere, each balance must be adjusted to compensate for
the gravity differences at each location in accordance with the underlying physical weighing principles.
This adjustment process, known as calibration and must 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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4 Working with the application menu using the Intelligent
Low battery indicator
Negative value indicator
Zero indicator
Key-Pad
4.1 Display messages and key functions
4.1.1 Display messages:
4.1.2 Key Functions:
1. The ON/OFF key is to turn the Scale On or Off
2. The HOLD key is to store the weight value.
3. The UNIT key is to toggle different weighing units.
4. The ZERO key : Zero feature if load weight below 4% of full capacity; Tare feature if load weight
between 4% to 100% of capacity.
5. The PRINT key is to send data to external device through RS232 connector.
4.2 Program options
Please see our web-site at http://lwmeasurements.com for practical demonstrations of application
usage.
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4.2.1 Interface Settings
Press and hold HOLD key, and then press ON/OFF key to turn on the scale, display will show A-
ON or A-OFF
Press UNIT key, display will show “L-ON” or “L-OFF”
Press UNIT key again, display will show “P-XX”
Press ZERO key to select CON,OFF, KEY, STB
a) OFF stands for serial data output disabled
b) KEY stands for manual mode by pressing [PRINT]
c) STB stands for automatic print when scale is stable
d) CON stands for continuous print
Press ON/OFF key to turn off the Scale.
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 Scale, 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 Scale, 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 Scale, 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 scale is turned on) or “J OFF” (means showing the weight placed when the
scale is turned on).
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4.2.3 Working mode settings
- Press & hold UNIT and HOLD keys, then press ON/OFF key to turn on the scale
- The display will show Ani. Su, press UNIT key to enter, press ZERO key to select ON( means animal
weighing mode) or OFF ( means normal weighing mode), press HOLD key to confirm.
- Press HOLD key again, display will show Ani. Kd, press UNIT key to enter, press ZERO key to select
anti-shock range between 50, 100, 200 and 400, press HOLD key to confirm.
*** This is the anti shock range 50d, 100d, 200d or 400d. The smaller division range is suitable for smaller
animals, the larger division range for larger animals
- Press HOLD key again, display will show Ani. Fd, press UNIT key to enter, press ZERO key to select
filter range between 0.5, 3, 5 and 10, press HOLD key to confirm.
*** This is the filter range, 0.5d, 3d, 5d or 10d that the scale displays, for example, if we use LVS 700lb x
0.2lb for weighing a 300lb cow, if we set it to be 0.5d, then the scale will show 299.8lb, 300lb, 300.2lb..., if
we set it to be 3d, then the scale will show 299.4lb, 300lb, 300.6lb... 0.5d can get much accurate weighing,
but it won’t be as stable; 10d will not obtain such an accurate weighing result, but it will be much more
stable.
- Press HOLD key again, the display will show Ani. Ft, press UNIT key to enter, press ZERO key to
select filter time between 1, 2, 3 and 4, press HOLD key to confirm.
*** This is the filter time, 1s, 2s, 3s or 4s that will take to display the weighing. Weighing will be more
accurate if the user chooses 4 second(longer displaying time), but not so accurate if 1 second(faster
displaying time) is chosen.
Press ON/OFF key to turn the scale off.
4.2.4 Hold function
- Press ON/OFF key to turn on the scale, place the item on the platform.
- Wait for the readings stable, press HOLD key, the “ . “ indicator will show
- Remove the item from the platform, the readings will still remain on the display
- Press HOLD key to quit hold function mode
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5 Calibration - Using an External Calibration Weight
Calibration is generally required when the weighing machine is initially installed or if the weighing
machine is moved to a substantial distance from the original location. 30 minutes of warming up of the
scale is always needed before initial calibration.
A reminder when operating our larger capacity scales:
The scales of the LVS / LVS-XL and LC-VS 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.
Calibration procedure:
Press and hold ZERO key and then press ON/OFF key to turn on the scale, the display will show
CAPu=
Press HOLD key, display will show CAP, press HOLD key again, display shows CALu=, press
UNIT key to select calibration unit KG or LB, a triangle icon will display to indicate KG or LB,
press HOLD key to confirm, it will show CALu= again.
Press HOLD key again, the display will show CAL, press UNIT key to set calibration weight,
display will show XXXXX with a flashing digit, press UNIT key to move the flashing digit to right,
press ZERO key to increase the value of the flashing digit, press HOLD key to confirm, it will
show CAL again. (We recommend a calibration weight at least 2/3 of the full capacity to get an
accurate weighing)
Press PRINT key, display will show CAL and then the AD value, press UNIT key when the stable
indicator displayed, it will show the flashing calibration weight,
Place the known test weight on the platform, press UNIT key after stable indicator displayed, it
will show ------, and then the AD value, now the calibration is finished.
Turn off the scale, remove the test weight from the platform.
Press ON/OFF key to turn the scale on to test if the weighing is accurate, if not, repeat above
steps.
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6 Maintenance and service
The weighing machine must be treated carefully and cleaned regularly. It is a precision instrument.
For maintenance-work, the balance must be separated from the power supply (remove power adapter
plug from socket). Also ensure that the balance cannot be reconnected to the power
supply during the work by a third party.
Take care during cleaning that no liquid penetrates into the appliance. If liquid is spilt on the balance, the
latter must immediately be disconnected from the electricity supply. The balance 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 may not come into contact with
liquids.
Regularly dismantle the weighing pan and the weighing pan holder and remove any dirt or dust from
under the weighing pan and on the weighing machine housing with a soft brush or a soft, lint-free cloth,
moistened with a mild soap solution. The scale and the holder can be cleaned under running water. Take
care that both parts are completely dry before they are re-installed on the scale.
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
can cause damage.
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7 Transport, storage
7.1 Transportation and shipping of the weighing machine
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 of the weighing machine
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 and transported in the original packaging to avoid
transportation damage.
The weighing machine should preferably be stored in the original packaging, since this provides optimal
protection for the weighing machine.
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