Tree MRC2000 User manual

Professional Weighing Equipment
Race Car Scales
Wireless Car Scale Set
Operation Manual

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Table of Contents
Section Page
Declaration of Conformity 3
Customer Service 4
Introduction 4
Safety 5
IP65 Protection 6
Weight Scale 7
Functions 8
Features 9
Application & Installation 9-10
Getting Started 11
Delivery 11
Assembly & Installation 12
Application Menu 13
Program Options 14-16
Calibration 16-17
Maintenance & Service 17
Transportation & Storage 17
Warranty 18

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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: Weigh Bar series
Mark applied
EU Directive
Standards
2004/108/EC
EN 61326-1: 2006
Signature:
Boon Lim, R & D Manager
Date: 14. 09. 2018
LW Measurements LLC, 620 Carlson Court, Rohnert Park CA, 94928
Imperial version
Metric version
MRC2000
MRC 6500

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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

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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, please refer to the Safety proportion of this
operation manual.
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).

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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;
Digital indicator (1)
Scale pads (4)
The adapter (1)
Operation manual

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Functions
The Race Car Scales are high-quality electronic precision weighing devices with the
following specifications
Specifications
Model number
Capacity
Division
Weighing Platform Size
MRC 2000
4 X 550 lb.
0.2 lb.
12 x 12.6 inches / 31 x 32 cm
MRC 6500
4X1650 lb.
1 lb.
35 cm x 40 cm/ 14 inch x 16 inch
Net/gross weight
22 kg / 25 kg ( 44lg / 55lb)
31.5 kg/35.8 kg (69.3 lb/89.5 lb)
Package
(Standard carton)
67x39.5x40(cm3)
26.4x15.6x15.7 (inch³)
64.50x50.5x43 (cm³)
25.4x19.9x16.9 (inch³)
Operating Temp.
0-40℃(32-104℉)
Power source
6 V/4AH (not included) or AC/DC Adapter 12V DC / 1000mA

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FEATURES
Display options: 44 digital LED
Power: recharge/AC adapter 12V/1000mA
Select LED brightness (selectable)
Auto shut off (selectable)
Operating Temperature: 5-35 °C
Operating Humidity: 25%-95% RH
Zero Range (4% to full capacity)
Tare Range (50% to full capacity)
Low battery will appear - charge
Error message indication:
[Err-O] = Overload
[Err-Z] = Exceed zero track range when power is on
[Err-S] = Unstable when power is on
[Err-C] = calibration code is not enough or operation error
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 Weigh Bar series
Power supply:
Input: 110 or 230V AC (+/-15-20%); 50 to 60Hz
Output: 12V DC 150mA

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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.
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.6).
Read through these operating instruction, before you work with the unit and pay
attention to the Safety recommendations (reference Safety pg. 5).
Delivery
Inspect delivery for completeness immediately on unpacking all components.
Checklist for complete delivery
Component delivered present: yes / no
Digital Display
Scale pads (4)
Power adapter
Operating manual

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Assembly & Installation
The weighing machine is delivered in partly dismantled condition. Assemble the
individual components in the following sequence:
Insert the power adapter cable plug into the socket at the rear of the balance.
Connecting the AC Adapter
The following Safety recommendations must be observed when connecting the balance:
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 overview

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Key Functions:
The ON/OFF key is to turn the Scale On or Off
The UNIT Select weighing units: kg or lb
The ZERO key: Zero for Tare
The PRINT key is to send data to external device through RS232 connector.
Interface
Interface Settings
Battery socket: AC/DC 12V –external positive, inner negative
USB interface:
Press and hold [ZERO] key then turn on the scale, the display will show A-ON or
A-OFF, press [UNIT] key twice, the display will show P-Con or P-PC, press
[ZERO] key to select Con or PC.
P-Con: send data continuously
P-PC: order send: host sends 0A (HEX) order, scale will send below data
Port setting: 9600, N 8, 1
Port’s data format: (48 Bytes)
Byte 1~3 4~8 9~10 11 12
MODE DATA UNIT CR LF
1~3．MODE='FL:'：front left weight
MODE='RL:'：front right weight
MODE='FR:'：rear left weight
MODE='RR:'：rear right weight
4~8．DATA：weight data
9~10．UNIT='kg'/'lb'：unit
11．CR：ENTER key(HEX=0D)
12．LF：change line(HEX=0A

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Features ：
1. Display options：44 digital LED
2. Power: recharge / AC adapter 12V/1000 mA
3. Select LED brightness (selectable)
4. Auto shut off (selectable)
5. Operating Temperature：5～35℃
6. Operating Humidity：25％～95％RH
7. Zero Range (4% to full capacity)
8. Tare Range (50% to full capacity)
9. Error Message indication：
Err-O Overload
Err-Z Exceed zero track range when power is on
Err-S Unstable when power is on
Err-C Calibration code is not enough or operation error. -Lo-Scale Low battery indication
Link it means that the Bluetooth connection failed.
Lob indicator Low battery indication
10. Two calibration weight units: kg, lb.
11. Open calibration capacity
12. Power on zero-setting range: + 10%
13. Bluetooth indicator.
14. Three modes: J-ON mode: showing zero when turn on the power / J-OFF mode: showing weight
placed when turn on the power. /Internal Auto Calibration mode
15. USB function

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Battery
CAUTIONS:
1. When the recharging sign “LoB” indicates, please charge the battery immediately. When the charging
is done, the indicate lights will turn orange color into green color. Remove the adaptor when charging
finished, and over-time charging will cause permanent damage.
2. If the display FRONT LEFT（or rL/Fr/rr）shows“-LO-”“weight”alternately, it means the battery
of the FRONT LEFT scale（or rL/Fr/rr）is in low voltage，please charge the battery immediately.
When the charging is done, the indicate lights will turn orange color into green color. Remove the
adaptor when charging finished, and over-time charging will cause permanent damage.
3. You must use the charger (adapter) supplied with the indicator.
4. If after recharging and the battery does not last long, replace with new battery.
Work mode:
Connect the 4 scales to its corresponding indicator.（indicator’s FRONT LEFT socket connect to RONT
LEFT scale, indicator’s REAR LEFT socket connect to REAR LEFT scale）. Set the switch on the edge of
the weighing pan to ON.
1. Press [ON/OFF] key, the scale starts self-inspection and show 9-8-7…..1----. At the same time, the
indicator and the Bluetooth indicate light on the scale flashing, it means the indicator and the scale

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are online, if online succeed, the Bluetooth indicate light will become light constantly. 4 scales in zero
mode.（NOTE：when the scale with nothing while the indicator shows weight, please check whether
the connection between indicator and scale is caused by low voltage. Please connect the adapter to
charge the indicator and the scale.
Pick up the race car, put FRONT LEFT, REAR LEFT, FRONT RIGHT, REAR RIGHT scale under its
corresponding wheel, place the race car smoothly the display will show each wheel’s weight, front, rear,
left, right weight and
percentage.
NOTE：
1. If the indicator displays”Link”, it means that the Bluetooth connection failed. Please check whether
the corresponding scale’s Bluetooth indicate light is flashing or light constantly. If the indicate light is
on, please restart the scale.
2. If the indicator displays “Link”and the corresponding scale’s Bluetooth indicate light don’t work,
restart the scale and the Bluetooth indicates still off, please connect the special adapter to charge the
battery. When the charging is done, the indicate light will turn Orange color into Green color.

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When to calibrate
Calibration may be required when it is initially installed, if the scale/balance is moved to a substantial
distance.
This is necessary because the weight of a mass in one location is not necessarily the same in another
location. Also, with time and use, mechanical deviations may occur.
Calibration Weight
Connect the 4 scales to its corresponding indicator. Indicator’s FRONT LEFT socket connect to FRONT
LEFT scale, indicator’s REAR LEFT socket connect to REAR LEFT scale）.
1. Turn on hard switch on bottom front right of indicator press and hold [UNIT] key then press
[ON/OFF] key, the display will show CALI, FL press [UNIT] key to select calibrate scale
.FL/rL/Fr/rr;
2. Press [ZERO] key the display will show CALu, press [UNIT] key to select calibration unit kg
or lb;
3. Press [ZERO] key, the display will show CAL= Xxx.x,( press [UNIT] and [ZERO] key to
enter setting calibration weight) ,press [UNIT] key to move the flash digit to right, press
[ZERO] key to increase the flash digit, press [ON/OFF] key to confirm the selection ( the
calibration weight should be more than 1/2 of full capacity). CAL0 0,Press [UNIT] key, the
display will show CAL0, then AD value, press [UNIT] key, the display will show flash
calibration weight, place the shown weight on the FL platform, press [UNIT] key, the display
will show -----, the display will show flash FL (or rL/Fr/rr).you can remove the weights. FL
(FRONT LEFT scale) calibration finished. Press [UNIT] key to select calibrate scale rL /Fr/rr.
Now calibration is finished and you can remove the weights. Turn off the scale.
Turn on the scale, place tested weight to check whether it is correct, if not, please repeat above
segments.

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Maintenance & 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.
See Section 1.3 above regarding IP65. The scale may be washed down.
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.
Transportation & 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

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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.