Tree Mct plus 3 User manual

Professional Weighing Equipment

MCT Plus SERIES intelligent weighing scale

MID COUNTING SCALE

WITH CHECK-WEIGHING FUNCTION

Operation Manual

Rev 3, 08.08.2016

Table of Contents

Section Page

Declaration of Conformity 3

Customer Service 4

Introduction 5

Safety 6

Weight Scale 7

Functions 8

Features 9-10

Application & Conformity 11

Getting Started 12

Delivery 12

Assembly & Installation 13-14

Application Menu 14

Key Functions 15

Function Settings 16

Calibration 19

Maintenance & Service 20

Transport & Storage 20

Warranty 21

Rev 3, 08.08.2016

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 Mid Counting Scales

Mark applied

EU Directive

Standards

2004/108/EC

EN 61326-1: 2006

Signature:

Boon Lim, R & D Manager

Date: 06. 28. 2016

LW Measurements LLC, 620 Carlson Court, Rohnert Park, CA 94928

Imperial version

Metric version

MCT Plus 3

MCT Plus 7

MCT Plus 16

MCT Plus 33

MCT Plus 66

Rev 3, 08.08.2016

Customer Service

USA

LW Measurements LLC, 620 Carlson Court

Rohnert Park, CA 94928

USA

Tel: (707) 542-2185

FAX: (707) 542-3285

http://lwmeasurements.com

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

http://lwmeasurements.com

Rev 3, 08.08.2016

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 scale 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.

Rev 3, 08.08.2016

Safety

Representations & 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.

Rev 3, 08.08.2016

Weight Scale

The weighing scale consist of certain parts

Weighing scale body (1)

The scale-pan (2)

The adapter (3)

Operation manual

Your weighing scale

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Functions

The MCT Plus Series are high-quality electronic precision weighing scales designed to

function as counting scales and check-weights with the following specifications.

Imperial weight unit version

Model number

Capacity

Division

Weighing pan Size

MCT-P-3

3 lb

0.0001 lb

7.6 x 10 in

MCT-P-7

7 lb

0.0002 lb

7.6 x 10 in

MCT-P-16

16 lb

0.0005 lb

7.6 x 10 in

MCT-P-33

33 lb

0.001 lb

7.6 x 10 in

MCT-P-66

66 lb

0.002 lb

7.6 x 10 in

Package

(Standard carton)

27.5×19×21(cm3)

Package

(Master carton)

4 Units in one box: 64.5×38×36(cm3)

Operating

Temperature

0-40 C (32-104 F)

Power source

Rechargeable batteries or AC/DC

Adapter 10V/500mA

Rev 3, 08.08.2016

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 back light

Selectable auto shut off

Unit switching kg ,g, lb, oz, lb:oz

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

Back of unit

Adaptor inlet

Details of your weighing scale

Label

Numeric Keypad

Display

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Underside of unit

Battery compartment cover

Hard switch

Battery compartment

(Rechargeable battery

included)

Leveling feet

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Application & Conformity

The Following are instructions of how to correctly use the weight scale:

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 all MCT Plus series weighing scales

Power supply:

Input: 110V or 230V AC (+/-15-20%); 50Hz to 60Hz

Output: 10v DC 500mA

Allowable ambient conditions

Temperature: 0°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.

Rev 3, 08.08.2016

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.18).

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

Weighing pan

Power adapter

Operating manual

Rev 3, 08.08.2016

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.

Place the plastic platter on top of the scale, flat side facing up so the platter

sits firmly on the machine with the four “legs” inserted into the corresponding

four receptacles.

Place the stainless steel platter on top of the plastic platter with the flat side

facing up.

Connecting the AC Adapter

The following Safety recommendations must be observed when connecting the balance

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.

The scale is fitted with one bubble level, and adjustable feet for level-control that allow

for small height differences or any unevenness in the surface on which the balance is

placed.

Rev 3, 08.08.2016

The screw feet must be adjusted so that the air bubble is precisely in the center of the

sight glass of the bubble level.

Place the scale horizontally and keep the bubble inside the bubble level aligned with the

circle (Fig.1). In order to get exact measurements, the balance must be carefully leveled

after each re-location.

Fig. 1 Correct leveling with the aid of the bubble level and adjusting feet.

ER Application Menu

Display messages

The STABLE icon indicates when the readings stabled.

The ZERO icon indicates when the weights tared to zero.

The LO-BAT icon indicates when running out of battery.

The PCS icon indicates when pieces counting function applied.

Rev 3, 08.08.2016

Key Functions

Weight Display indicates the Gross or Net weight on the platter (when the tare

function is activated).

Unit Weight Display indicates the average or set unit piece weight.

Total Display is the accumulated total pieces on the scale.

The ZERO Indicator turns on when the weighing machine is in ZERO position.

The TARE Indicator turns on when this function is used.

The LOW Sample Weight turns on when the sample number is not large enough

for accurate counting.

LOW Unit Value turns on when sample unit weight is not heavy enough for

accurate counting.

Numeric (0-9) Keys are used for setting numeric data for sample number,

sample weight or to limit the HI/LO settings.

Decimal Point (.) key is used to set the decimal position of sample weight.

Press the ZERO key to set or re-adjust the scale to the correct zero position.

Pressing the TARE key eliminates the gross weight on the platter (box or

container, etc.) as the tare weight.

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.

The Unit/Weight key is used when setting the known unit weight data into the

weighing machine during normal operations.

The CE key is used for cancelling the numeric setting data or to cancel the

previous unit weight data.

Qty/SET key is used for alternating between normal counting and quantity check

operations.

Press the MEMORY (M+) key to save the counted data; data can be saved up to

99 times.

Press the MC key to clear or cancel the data in the memory.

Press the TOTAL key to switch between normal counting and recalling memory

data.

Rev 3, 08.08.2016

Function Settings

Turn off the weighing machine using the hard switch located on the bottom of the

weighing machine.

Press and hold UNIT WEIGHT key and then turn on the weighing machine. The

display will show “------“ and then “b = XX” (beeper), on the first line, A-XX (auto

off) on the second line and “L = XX (backlight on the third line.

Press the QTY/SET key to toggle between activating the beeper on or off.

Press the TARE key to select auto off time.

Press the ZERO key to toggle between activating the backlight On, Off, or Auto

(Au). To save your settings, and begin weighing, turn the machine off and then

back on again.

When there is no weight on the platter, press the SAMPLE/UNIT key to select

the weighing unit (kg or lb).

Clearing the total weight:

Press the TOTAL key to show the total pieces on the third line of the display.

Press the MC key to show the unit that will be cleared.

Press the CE key to confirm clear.

Clearing the tare weight:

Place the empty container on the platter.

Press the TARE key.

The display will show 0.00000.

When the container is removed from the platter, the WEIGHT display will show a

minus (-) value which is the weight of the container.

Clearing the previous tare weight:

Remove weight from the platter and ten press the TARE key.

The TARE indicator will turn off and the WEIGHT display will return to zero.

Number setting:

Place the pre-counted X number of sample pieces on the platter. The total weight will be

displayed. Set the X number of pieces using the numeric keys and then press the

SAMPLE/UNIT key.

UNIT/WEIGHT on the display shows the average piece weight of the samples.

TOTAL (pcs) on the display shows the number of sample pieces on the scale. Add in

more units and it will show the total number of pieces.

Rev 3, 08.08.2016

Unit weight setting (when unit weight is known):

Place samples on the scale. Using the numeric keypad, key in the average piece

weight. Press UNIT WEIGHT on the keypad to save the specified piece weight.

The total number of pieces will be shown on the TOTAL. Add in more units to be

counted. Press the CE key to clear previous setting.

Press the CE key again to cancel the previous unit weight and sample setting.

Alarm function:

To avoid counting errors, this scale has a useful alarm function to inform the operator of

a counting error in the event of low sample size or low sample weight.

The Low Sample weight curser on the display will turn on if the total weight of the

sample is below the limit value. The scale will start counting but the error may be high.

Press the CE key. Then use a larger sized sample (more weight and key in the new

sample size using the numeric keypad, and then press SAMPLE/UNIT.

Unit Weight Enhancement:

The weighing machine will automatically adjust and calculate a new average unit weight

when more samples are slowly placed on the scale. This ensures higher accuracy as

samples are now based on a larger population size.

Lack of Piece Weight:

LOW UNIT VALUE indicator will turn on if the average unit weight of set unit weight is

not enough for accurate counting operation. Operator may still use the weighing

machine if this indicator is on, but counting error might occur.

Hi / LO check-weighing with counting

The MCT Plus series has a useful check function to inform the operator if the total

pieces counted has reached the desired lower limit and the upper limit. This function is

designed for packaging applications.

EXAMPLE: if the operator wishes to count 1,000 pieces for every package, he/she can

set the lower limit and the upper limit as 1,000 pieces by:

Press the QTY/SET key to enter the quantity alarm menu.

Press the ZERO key to turn on the check weighing. Display will show CH=ON. Press

the ZERO key again and the display will show CH-OFF which means the quantity alarm

function has been turned off.

Rev 3, 08.08.2016

To set the lower and upper count limit, press the TARE key to select the hi/lo limits.

For example; “L=990,” press 990 on the numeric keypad, then TARE to switch over to:

H = 1010, press 1010 on the numeric keypad.

Press the QTY/SET key to confirm and return to counting mode.

Put 10 pieces of the sample on the platter and press “10” on the numeric keypad. Then

press the SAMPLE/UNIT key to store and confirm the sample weight.

Keep adding pieces until it reaches the lowest quantity of “990”. The alarm will sound

when you reach 990.

Keep adding pieces until it reaches the highest quantity of “1010” or above. The alarm

will sound with a different tone.

Optional auto backlight

Press and hold the “Mode” key, and then press the “On/Off” (icon) key to turn on the

scale, the display will show A_ON or A_OFF. Press “Mode” key, the display will

show L_ON or L_OFF, press the “Zero” key to select L_ON, L_OFF or L_AU (auto).

Press the “On/Off” key to turn off the scale and then turn it on again to return to

normal operation.

Rev 3, 08.08.2016

Calibration

Note: calibration is done in the factory. Don’t re-calibrate the machine unless it is

not accurate. The weighing machine should be allowed to warm up for 10 minutes

before calibration.

Calibration:

Press and hold the ZERO key, and then press the ON/OFF key to turn the

weighing machine on. The display will show SCALE on the first line, CAL-0

(flashing) on the second line and the AD value on the third line.

Press the SAMPLE/UNIT key to select the calibration unit to be used as either kg

or lb.

When the AD value is stable, press the ZERO key to calibrate ZERO. After 2-3

seconds, the second line will show 0.

Set the calibration weight by using the numeric key pad (0-9) and then place the

calibration weight on the platter. Press ZERO to calibrate. Once the stable

indicator light is displayed, press the ZERO key again. The second line of display

will now show 00000. Calibration is now complete.

Note: The ideal calibration test weight is between 2/3 capacity to full capacity in order to

get the most accurate weight after calibration.

Turn off the power, then turn it back on again. Place a weight on the platter to ensure

weighing is correct. If not, repeat the above steps.

Linearity calibration (for scale technician or factory use):

Turn on the weighing machine and then turn it off.

Press and hold the TARE key and then turn on the machine. The display will

show LINE on the first row, CAL-0 (flashing) on the second line and AD value on

the third line.

When the AD value is stable, press ZERO. After 2 or 3 seconds, the second line

will show 1.0000.

Place a 1 kg weight on the platter and press ZERO when the stable A/D value is

displayed. After 2 or 3 seconds, the display will show 2.0000.

Place a 2kg weight on the platter and press ZERO when the stable A/D value is

displayed. After 2 or 3 seconds, the display will show 3.0000.

Place 1 3kg weight on the platter and press ZERO when the stable A/D value is

displayed. After 2 or 3 seconds, the display will show 0.0000. Calibration is

complete.

Turn off the power, then turn it back on again. Place a weight on the platter to

ensure weighing is correct. If not, repeat the above steps.

NOTE: the above linearity calibration is only for MCT-P-7, for other MCT-P

capacity, add test-weight according to display value.

Rev 3, 08.08.2016

Maintenance & Service

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.

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

This manual suits for next models

Table of contents

Tree MCT Plus 3 User manual