LW MEASUREMENTS LVS User manual

Professional Weighing
Equipment
VET Scales
LVS / LVS-XL LC-VS
Operation Manual

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Table of Contents
Section Page
Declaration of Conformity 3
Customer Service 4
Introduction 4
Safety 5
Weight Scale 6
Functions 7
Features 8
Application & Conformity 8
RS232 Data 9
Getting Started 10
Delivery 10
Assembly & Installation 11
Application Menu 12
Program Option 13
Calibration 14-15
Maintenance & Service 15
Transportation & Storage 16
Warranty 16

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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
Mark applied
EU Directive
Standards
2004/108/EC
EN 61326-1: 2006
Signature:
Boon Lim, R & D Manager
Date: 14. 11. 2012
LW Measurements LLC, 620 Carlson Court, Rohnert Park, CA 94928
Imperial version
Metric version
LVS 700
LVS 350k
LVS-XL 700
LVS-XL 350k
LC-VS 400
LC-VS 180k

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Customer Service
USA
LW Measurements LLC,
620 Carlson Court,
Rohnert Park, CA 94928
USA
Tel: [phone]
FAX: [phone]
http://lwmeasurements.com
EUROPE
LW Measurements Europe Ltd
Chalkwell Park House 700 London Road
Westcliff-on-Sea Essex SS0 9HQ
United Kingdom
Tel: [phone]
Fax: [phone]
http://lwmeasurements.com
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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Safety
Representations and symbols
Important instructions, which involve safety, are highlighted with the appropriate mark:
Safety recommendations
When using the weighing equipment in surroundings with increased safety
requirements, the corresponding regulations must be observed.
The weighing scale may only be used with the power adapter supplied.
Before connecting the power adapter to the scale, the user must ensure that the
operating voltage stated on the power adapter is compliant 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 scale must immediately be
disconnected from the electricity supply (pull out the power adapter).
If there should be any reason to believe that it is no longer safe to operate the scale, it
should 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 set out
in maintenance and servicing.
The weighing scale 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 scale or into connections on the rear of the equipment or the power
adapter. If liquid is spilled on the scale, it must immediately be unplugged from the main
electricity supply (pull out power adapter).
The weighing scale may be operated after it has first been inspected by a service
technician.
These operating instructions must be read by each user and should be easily
accessible at the workplace at all times.

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Weight Scale
Construction & Functions
The weighing scale consists of the following parts;
The Scale body (1)
The indicator (2)
Rubber Mat (3)
The adapter (4)
Operation manual.
Figure 2.1 Your weighing machine
4
2
1
3

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Functions
The VET Scale Series are high-quality electronic precision weighing machines with the
following specifications
Imperial weight unit version
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
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

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Features
Auto backlight
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
Optional calibration unit: kg or lb
RS232
Application & Conformity
The weighing scale may only be used for the weighing of solid-materials and of liquids
filled into secure containers.
The maximum capacity load of the weighing scale must never be exceeded, otherwise
the weighing scale may be damaged.
In using the weighing scale in combination with other devices as well as with devices
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.
The weighing scale has been manufactured and tested in accordance with the
standards and recommendations set out in the declaration of conformity.
The power adapter supplied for the weighing scale complies with the appropriate
electrical protection class.
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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RS232 Data interface
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
1~2
3
4~13
14~18
19
20
‘W: ’
P
DATA
UNIT
CR
LF
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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Getting Started
The scale is packaged in an environmentally-friendly carton, which provides optimum
protection for the balance during transportation.
We suggest that you keep the original packaging in order to avoid damage if you are
shipping or transporting the scale to a different location. It is also the best way to keep it
in the best conditions if it will not be used for an extended period of time.
In order to avoid damage, please follow the instructions provided below, when
unpacking the scale:
Unpack the scale carefully.
When outside temperatures are very low, the scale should be stored for a couple
hours and kept in its box in a dry room at normal temperature, so that no
condensation settles on the unit when opening the box.
Check the scale immediately after unpacking for any external visual damage. If
there is any damage on scale, contact customer service immediately.
If the scale is not to be used immediately after purchase, it should be stored in a
dry place where fluctuations in temperature are low. (Reference pg.).
Read through these operating instruction, before you work with the unit and pay
attention to the Safety recommendations (reference Safety pg. 6).
Delivery
Inspect delivery for completeness immediately on unpacking all components.
Checklist for complete delivery
Component delivered present yes / no
Weighing unit body
Rubber mat
Weighing pan
Power adapter
Operating manual

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Assembly & Installation
The weighing scale is delivered in a partly dismantled condition. Assemble the individual
components in the following sequence:
Place your machine on a level, clean, and dry surface to obtain accurate
readings.
Connecting the AC Adapter
The following Safety recommendations must be observed when connecting the balance
to the mains:
The Scale should only be connected to the mains voltage socket with the power adapter
supplied. Check before connecting the power adapter to the mains socket, that the
operating voltage stated on the power adapter complies with the local mains voltage.
If the operating voltage is not the same as the mains voltage, the power adapter must
not be connected to the mains socket and contact customer service.
Placement of Scale
The location in which the scale is placed is very important in order for the scale to work
to its full potential. Certain conditions can affect the capabilities of the scale, conditions
like: the presence of air flow, variations in temperature, and direct sunlight. Please
follow the recommendations given below in choosing a location to place your scale.
Place the scale 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
Avoid placing the scale near or on any magnetic surfaces

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Application Menu
Display messages and key functions
Display messages:
Key Functions:
The ON/OFF key is to turn the Scale On or Off
The HOLD key is to store the weight value.
The UNIT key is to toggle different weighing units.
The ZERO key: Zero feature if load weight below 4% of full capacity; Tare feature
if load weight is between 4 to 100% of capacity.
The PRINT key is to send data to external device through RS232 connector.
Low battery indicator
Negative value indicator
Zero indicator

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Program options
Interface Settings
Press and hold the “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
oOFF stands for serial data output disabled
oKEY stands for manual mode by pressing [PRINT]
oSTB stands for automatic print when scale is stable
oCON stands for continuous print
Press ON/OFF key to turn off the Scale.
Setting Auto Shut off
Press and hold the “Hold” key, then press the “on/off” key to turn on the Scale, the
display will show “A ON” or “A OFF”, Press “Zero” key to select auto shut off mode “ON”
or “OFF”.
Setting Backlight
Press and hold the “Hold” key, then press the “on/off” key to turn on the Scale, the
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)
Setting power-on mode
Press and hold the “Hold” key, then press the “on/off” key to turn on the Scale, the
display will show “A ON” or “A OFF”, Press the “Unit” key three times, the display will
show “J ON”or “J OFF”, then press the “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).
Working mode settings
Press & hold the “Unit” and “Hold” keys, then press the “On/Off” key to turn on
the scale
The display will show Ani. Su, press the “Unit” key to enter, then press the “Zero”
key to select ON (means animal weighing mode) or OFF (means normal
weighing mode), then press the “Hold” key to confirm.
Press the “Hold” key again, display will show Ani. Kd, press the “Unit” key to
enter, press the “zero” key to select anti-shock range between 50, 100, 200 and
400, press the “Hold” key to confirm.

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*** 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 the “Hold” key again, display will show Ani. Fd, press the “unit” key to enter,
press the “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 the “Hold” key again, the display will show Ani. Ft, press the “Unit” key to
enter, then press the “Zero” key to select filter time between 1, 2, 3 and 4, press
the “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 twice to return to normal operation
Hold function
Press the “on/off” key to turn on the scale, place the item on the platform.
Wait for the readings to stabilize, press the Hold” key, the “. “indicator will show
Remove the item from the platform, the readings will still remain on the display
Press the “Hold” key to quit hold function mode
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 calibration 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 the “Zero” key and then press the “on/off” key to turn on the scale,
the display will show CAPu=
To set the capacity of the scale; Press the “unit” key to select lbs. or kgs., then
press the “Hold” key to confirm. Press the “Hold” key again and then the “Unit”
key to select 700 capacity, then press “Hold” to confirm.

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Press the “hold” key, display will show CAP, press the “hold” key again, display
shows CALu=, then press the “Unit” key to select unit of measurement kg. or lb.,
a triangle icon will display to indicate kg. Or lb., press the “Hold” key to confirm, it
will show CALu= again.
Press the “hold” key again, the display will show CAL, press the “Unit” key to set
calibration weight, display will show XXXXX with a flashing digit, press the “Unit”
key to move the flashing digit to right, press the “Zero” key to increase the value
of the flashing digit, press the “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 the “print” key, the display will show CAL and then the AD value, press the
“Unit” key when the stable indicator displayed, it will show the flashing calibration
weight.
Place the known test weight on the platform, press the “Unit” key after stable
indicator displayed, it will show ------, and then the AD value, the calibration is
complete.
Turn off the scale, remove the test weight from the platform.
Press the “on/off” key to turn the scale on to test if the weighing is accurate, if not,
repeat above steps.
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 disconnected from the power supply
(remove power adapter plug from socket). Also ensure that the balance cannot be
connected to the power supply during the work by a third party.
Make sure that no liquid spills into the scale while performing maintenance work. If
liquid is spilled on the scale, it must be inspected by a service technician.
Regularly perform maintenance to the weighing pan and the weighing pan holder by
removing any dirt or dust from under the weighing pan and on the weighing scale
housing. Use a soft brush or a soft, lint-free cloth, moistened with a mild soap solution.
Never use solvents, acids, alkalis, paint thinners, scouring powders or other aggressive
or corrosive chemicals for cleaning; these substances can cause damage to the
surfaces of the scale housing.

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Transport & Storage
Your weighing machine is a precision instrument, treat it carefully. Avoid shaking,
severe impacts and vibration during the transportation. Make sure that there are no
marked temperature fluctuations during the transportation and that the weighing
machine does not become damp (condensation).
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 (refer to Maintenance &
Service) 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 Warranty
The products are under warranty against factory defects for a period of two (2) years
from the date of shipment.
For Customers within the lower 48 states of the continental United States. LW
Measurements will pay for fright both ways for the first 30 days after purchase. After 30
days expire the customer is responsible for shipping the product back to us. After the
product is received we will inspect it and as necessary we will repair or replace and will
ship the product back to the customer at our expense.
Any new scales returned for warranty must be properly packaged in the original box. If
they are not properly packed an in the original box, the customer pays for shipping cost.
If we determine there is a factory defect, we will pay for the shipping back. If we
determine that it is not a factory defect, the customer will pay shipping.
For Customers outside the lower 48 States, including Mexico, Canada, Puerto Rico,
Hawaii, Alaska and all other countries, customers must pay for shipping.
Our warranty does not cover misuse or neglect including but not limited to battery or
water damage, overloading, and chewed or cut wires. If the product is found to have
been misused or damaged by the customer, LW measurements is not responsible for
the cost of return.
For warranty claims please go online to lwmeasurements.com and fill out the warranty
submission form or call your customer service representative.