Professional Weighing Equipment
Large Drum Scale
Operating Manual
Declaration of Conformity
Metric Version
Imperial Version
362.8 kg
2000 lbs
Mark applied
EU Directive
Standards
2004/108/EC
EN 61326-1: 2006
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: LDS Series
Date: 14. 11. 2012 Signature:
Boon Lim, R & D Manager
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 labeling of potential hazards and advice, please see
Safety below.
4
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
5
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
4.2.3 Working mode setting
4.2.4 Hold function
4.2.5 Reading the display
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.
7
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.
8
2 Your weighing machine
Figure 2.1 Your weighing machine
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), the adapter (3) and this operating manual.
9
Model number
Capacity
Graduation
Weighing
Platform Size
LDS
362.8 kg
0.23 kg
100 x 94 cm
Net/gross weight
40.82 kg
Package
132.08 x 114.3 x 12.7 cm
Operating Temp.
0-40 Cº
Power source
6 x AA dry cells(not included) or AC/DC
Adapter 9V DC /100mA
AC Adaptor socket
RS232 socket
BOTTOM of Indicator
2.1.2 Functions of the weighing machine
The Large Drum Scale is a high-quality electronic precision
weighing machines with the following specifications
Metric Specifications
10
Model number
Capacity
Graduation
Platter Size
LDS
2000 lb
0.5 lb
39.4 x 37 inches
Net/gross weight
90 lb
Package
(Standard carton)
52 x 45 x 5 in
Operating Temp.
32 – 104 Fº
Power source
6 x AA dry cells(not included) or AC/DC
Adapter 9V DC /100mA
Imperial Specifications
FEATURES
Selectable auto backlight
Selectable auto shut-off
Display options: 5 digital LCD
ZERO range ( 0% - 4% of full capacity)
TARE range ( 50% to full capacity)
Selectable calibration unit: kg or lb
11
FEATURES (Con’t)
Err-O
Err-Z
Err-S
Err-C
Overload
Exceed zero track range when power is on
Unstable when power is on
Calibration code is not enough or operation error
Low battery indication
Open calibration capacity
Three modes: Normal, Setting and Internal Auto
Calibration
RS232 function
Error message indication:
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.
12
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 Large Drum Scale
Power supply:
Input: 110 or 230V AC (+/-15-20%); 50 to 60Hz
Output: 9V DC 100mA
Allowable ambient conditions:
Temperature: 0 - 40°C / 32 - 104°F
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.
13
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
14
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 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.).
15
Read through these operating instructions; even if you already
Component delivered present
yes / no
Weighing unit body
Indicator
Power adapter
Operating manual
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
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.
Plug the AC adapter into an appropriate wall socket.
16
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.
17
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).
4 Working with the application menu
using the Key-Pad
18
4.1 Display messages and key functions
Low battery indicator
Negative value indicator
Zero indicator
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.
19
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 AOFF
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”.
20
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).
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
21
between 0.5, 3, 5 and 10, press HOLD key to confirm.
- 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
“stable“ 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
22
4.2.5 Reading the Display
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
W/M
:
+
_
CR LF
M
= overload m
ode
W
= norm
al w
eighing m
ode
= w
eight inform
ation
:
W
eight inform
ation
U
nit form
ation
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
W
:
+
CR LF
5
0
k
g
.
0
50kg
23
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 LDS 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
24
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.
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.
25
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.
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).
26
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.
27
Loading...