Tree MCT PLUS SERIES User manual

Professional
Weighing
Equipment
Intelligent Weighing Machine
MCT PLUS SERIES
WITH CHECK-WEIGHING FUNCTION
Operating Manual

2
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: MCT Plus Mid Counting Scales
Mark applied
EU Directive
Standards
2004/108/EC
EN 61326-1: 2006
Date: 14. 11. 2012 Signature:
Boon Lim,
R & D Manager
Imperial version
Metric version
MCT PLUS 3
MCT PLUS 1500
MCT PLUS 7
MCT PLUS 3000
MCT PLUS 16
MCT PLUS 7500
MCT PLUS 33
MCT PLUS 15000
MCT PLUS 66
MCT PLUS 30000

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Customer Service
USA
LW Measurements LLC, 3510 Industrial Drive,
Unit H Santa Rosa, CA 95403
USA
Tel: [phone]
FAX: [phone]
EUROPE
LW Measurements Europe Ltd
Chalkwell Park House 700 London Road
Westcliff-on-Sea Essex SS0 9HQ
United Kingdom
Tel: [phone]
Fax: [phone]
ASIA
LW Measurements PTY Ltd
Block 1004, Toa Payoh North
#03-16 Singapore 318995
Tel: [phone]
HP: (65) 8119 3401
http://www.lwmeasurements.com
Refer to our website for information about local customer service
centers and details of their addresses.

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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.

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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
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 Leveling the weighing machine
3.7 Calibration of the weighing machine
4
Working with the application menu using the
Numeric Keypad
4.1 Display messages and key functions
4.1.1 Display messages
4.1.2 Key functions
4.1.3 Function setting
4.1.4 Clearing the total weight
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Operation
5.1 Tare
5.1.1 Clearing the Tare weight
5.1.2 Clearing the previous Tare weight

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5.2 Sample setting
5.2.1 Number setting (for counting any unknown
weight)
5.2.2 Unit weight setting (when unit weight is known)
5.3 Alarm function
5.4 Unit weight enhancement
5.5 Lack of piece weight
5.6 Hi/Lo check-weighing with counting
6
Calibration
7
Maintenance and service
8
Transport and storage
8.1 Transportation and shipping
8.2 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 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.

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The weighing machine must not be operated in an area subject to explosion
risks.
Keep this weighing machine away from water –this machine is NOT water
resistant. Shock, injury and electrical damage can occur if used in a wet
location.
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
2.1 Construction and functions
2.1.1 Construction of the weighing machine
The weighing machine consists of the weighing machine body (1), the platter
(2), the weighing machine (3) the adapter, (4) this operating manual.
Figure 2.1 Your weighing machine
3
1
2

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2.1.2 Functions of the weighing machine
The MCT Plus Series are high-quality electronic precision weighing machines
designed to function as counting scales and check-weighers with the following
specifications:
1. Imperial weight unit version
Model number
Capacity
Division
Weighing pan
Size
MCT PLUS 3
3 lb
0.0001 lb
7.6 x 10 in
MCT PLUS 7
7 lb
0.0002 lb
7.6 x 10 in
MCT PLUS 16
16 lb
0.0005 lb
7.6 x 10 in
MCT PLUS 33
33 lb
0.001 lb
7.6 x 10 in
MCT PLUS 66
66 lb
0.002 lb
7.6 x 10 in
Package
Standard Carton
13.8 X 12.2 X 6.5(in3)
Package
Master Carton
4 Units in one box: 25.4.×15 × 14.2(in3)
Operating
Temperature
32-104℉
Power source
Rechargeable batteries
or AC/DC Adapter 10V / 500 mA

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2. Metric weight unit version
Model number
Capacity
Division
Weighing pan
Size
MCT PLUS
1500
1500 g
0.05 g
193 X 254mm
MCT PLUS
3000
3000 g
0.1 g
193 X 254mm
MCT PLUS
7500
7500 g
0.2 g
193 X 254mm
MCT PLUS
15000
15 kg
0.0005 kg
193 X 254mm
MCT PLUS
30000
30 kg
0.001 kg
193 X 254mm
Package
(Standard
carton)
35 X 31 X 16.5(cm3)
Package
(Master carton)
4 Units in one box: 64.5×38×36(cm3)
Operating
Temperature
0-40Cº
Power Source
Rechargeable batteries or AC/DC
Adapter 10V/500mA

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The built-in versatile weighing programs allow you to use the MCT PLUS
Series weighing machines not only for accurate weighing but also for
components counting.
FEATURES
Auto zero tracking
Intelligent applications: weight unit conversion, parts counting
Low battery indication
Large bright backlit LCD
Large heavy gauge stainless steel square pan
Stability indication
Auto calibration
Selectable auto backlight
Selectable auto shut-off
Unit switching: kg, lb
Variable kg or lb reference weight calibration software
Pieces counting
1.3 million internal resolution
30,000 display resolution
24 bit A/D processor
Highest quality sensor used
Die-cast aluminum sub-support, bottom sensor support and steel
thread footing

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Figure 2.2 Details of your weighing machine
Mains power
connection
Fig 2.2.1 Display
Fig 2.2.2 Numeric Keypad
Leveling bubble
Fig 2.2.3 Back of unit
Label
Leveling feet

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2.2 Application, conformity
2.2.1 Correct use of the weighing machine
The weighing machine may only be used for the weighing of solid-materials
and liquids filled into secure containers.
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.
On/Off switch
Fig 2.2.4 Underside of unit
Battery compartment
(Rechargeable battery
included)
Battery compartment
cover

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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 MCT PLUS series weighing machines:
Power supply:
Input: 110 or 230V AC (+/-15-20%); 50 to 60Hz
Output: 10v DC 500mA
Allowable ambient conditions:
Temperature: 0°C - 40°C / 32 - 104ºF
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.
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 unit 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.

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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 rather at a later
time, it should be stored in a dry place where fluctuations in temperature are
as minimal 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 upon unpacking all
components.
Checklist for complete delivery
Component delivered present yes
/ no
Weighing unit body
Weighing platter
Power adapter
Operating manual
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 base unit in position and add the weighing platter.
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,

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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 Leveling the weighing machine
To function properly, the weighing machine must be precisely horizontal. The
machine is fitted with one bubble level and four (4) adjustable feet for level-
control, with the aid of which it is possible to compensate for small height
differences and/or any unevenness in the surface on which the machine is
positioned.
The leveling feet must be adjusted so that the air bubble is precisely in the
center of the sight glass of the bubble level (see Fig. 1)
Place the weighing machine horizontally and keep the bubble inside the
bubble level aligned with the red circle (See Fig.1). In order to get exact

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measurements, the machine must again be carefully leveled after each
relocation.
Fig. 1 Correct leveling with the aid of the bubble level and adjusting feet.
3.7 Calibration of 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. 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 Numeric
Key-Pad
4.1 Display messages and key functions
4.1.1 Display messages
1. The STABLE icon indicates when the readings are stable.
2. The ZERO icon indicates when the weights are tared to zero.
3. The LO-BAT icon indicates when the battery is running out of power.
4. The PCS icon indicates when the pieces counting function is applied.
4.1.2 Display & Key Functions
1. WEIGHT DISPLAY indicates the Gross or Net weight on the platter (when
the tare function is activated).
2. UNIT WEIGHT DISPLAY indicates the average or set unit piece weight.

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3. TOTAL DISPLAY is the accumulated total pieces on the scale.
4. The ZERO INDICATOR turns on when the weighing machine is in Zero
position.
5. The TARE INDICATOR turns on when this function is used.
6. LOW SAMPLE WEIGHT turns on when the sample number is not large
enough for accurate counting.
7. LOW UNIT VALUE turns on when sample unit weight is not heavy
enough for accurate counting.
8. NUMERIC (0-9) KEYS are used for setting numeric data for sample
number, sample weight or to limit the HI / LO settings.
9. DECIMAL POINT (.) key is used to set the decimal position of sample
weight.
10. Press the ZERO key to set or re-adjust the scale to the correct zero
position.
11. Pressing the TARE key eliminates the gross weight on the platter (box or
container, etc) as the tare weight.
12. Press the SAMPLE/UNIT (kg/lb) to select the desired weighing unit. The
SAMPLE/UNIT key is also used when setting the counted sample
numbers on the platter into the machine’s memory.
13. The UNIT/WEIGHT key is used when setting the known unit weight data
into the weighing machine during normal operation.
14. The CE key is used for cancelling the numeric setting data or to cancel
the previous unit weight data.
15. QTY/SET key is used for the alternating between normal counting and
quantity check operations.
16. Press the MEMORY (M+) key to save the counted data; data can be
saved up to 99 times.
17. Press the MC key to clear or cancel the data in the memory.