Tree KHR 6000 User manual

K-Series Scales
Operation Manual
KHR 6000 KHR 123
KHR 502
KHR 3001
Professional Weighing
Equipment

K-Series Scale Operation Manual
Rev 2, 12_16_2015 2
Table of Contents
Section Page
Declaration of Conformity 3
Customer Service 4
Introduction 5
Safety 6
Weight Scale 7
Unit Conversion 8-9
Scale Features 10
Application & Conformity 10
Technical Data 11
Getting Started 11
Delivery 12
Parts Description 12-13
Assembly 13-14
Application & Functions 14-15
Calibration 16-17
Maintenance & Service 17
Transport & Storage 17-18
Warranty & Returns 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 to conforms to the
following standards.
Electronic scale: K-Series Balances
Signature:
Boon Lim, R & D Manager
July 17, 2014
LW Measurements LLC, 3510 Industrial Drive, Unit H Santa Rosa, CA 95403
Imperial version
Metric version
KHR 6000
KHR 502
KHR 3001
KHR 123
KHR 6000
KHR 502
KHR 3001
KHR 123
Mark applied
EU Directive
Standards
2004/108/EC
EN 61326-1: 2006

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Customer Service
USA
LW Measurements LLC, 3510 Industrial Drive,
Unit H Santa Rosa, CA 95403
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

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Introduction
What you should know about this Operation Manual:
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 of the weighing scale in your daily
work activities.
These operating instructions contain guidance in the form of pictograms and keyboard
diagrams, which should help in finding the required information:
For the labeling of potential hazards, please refer to the Safety proportion of this
operation manual.

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Safety
Representations & Symbols
Note: 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 in
maintenance and service.
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, 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.
The weighing machine may only be operated again after it has inspected by a service
technician.
These operating instructions should read by each user and should be easily accessible
at the workplace.

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Weight Scale
Construction & Functions
The Scale consist of certain parts;
Base
Plastic Platter
Stainless Steel Platter
Clear Plastic Bowl
A/C Adapter
Operation Manual
Figure 2.1 weight scale Figure 2.2 Plastic platter Figure 2.3 Stainless steel platter
Figure 2.4 Clear plastic bowl Figure 2.5 A/C adapter

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Functions of the Scale
The K Series is a high-quality electronic precision weight scale with the following specifications;
Imperial weight unit version
Model number
Capacity
Graduation
Platter Size
KHR 6001
6000 g
1 g
5.75 in x 5.75 in
KHR 3001
3000 g
0.1 g
5.75 in x 5.75 in
KHR 502
500 g
0.01 g
5.75 in x 5.75 in
KHR 123
120g
0.001g
3.85 in
Net/gross weight
1.7 lb / 4 lb
Package
(Standard carton)
11.5 x 9.25 x 5.5 (in3)
Operating Temp.
32℉-104℉
Power source
6 x AA Dry cells (not included) or Auto Sensing Transformer
85-265V AC

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Model number
Capacity
Graduation
Platter Size
KHR-6001
6000 g
1 g
14.5 x 14.5 cm
KHR-3001
3000 g
0.1 g
14.5 x 14.5 cm
KHR 502
500 g
0.01 g
14.5 x 14.5 cm
KRH 123
120g
0.001g
3.85 in
Net/gross weight
920 g / 1300 g
Package
(Standard carton)
29 x 23.5 x 14(cm3)
Operating Temp.
0-40 ºC
Power source
6 x AA Dry cells (not included) or Auto Sensing Transformer
85-265V AC
Metric weight unit version

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Scale Features
The Scale consist of the following features:
Auto shut off (optional)
Auto zero tracking
Low battery indication
1/2000 & 1/30000 division available
Large container weighing
Auto calibration
Large LCD
Units of measure; Kg./g./lb./lb:oz./oz. conversion; KHR123 g,mg,dwt,ozt,gn
Auto backlight (optional)
Application & Conformity
The Following are instructions of how to correctly use the weight scale:
The maximum capacity weight must never be exceeded, otherwise the weight scale
may be damaged.
If using the scale with other devices including devices produced by other manufacturers,
the appropriate regulations for the safe use of the devices and their application in
accordance with their relevant operational instructions must be observed.
The 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 scale complies with the appropriate electrical
protection class.

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Technical Data
The following applies to the KMR series
Power supply:
Input: The AC input requirement is 85V-265 V (50Hz to 60Hz AC (+/-15-20%);
Output: 9V DC 100mA
Allowable ambient conditions
Temperature: 0°C - 40°C, 32°F - 104°F
Relative humidity: 25% - 85%, non-condensing
If you have any questions on the technical data or require detailed technical information
on your scale, please contact your technical representative.
Getting Started
The machine is packaged in an environmentally-friendly carton, which provides
optimum protection for the machine 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).

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Delivery
Inspect delivery for completeness immediately on unpacking all components
Checklist for complete delivery
Component
Component delivered present
yes / no
Weighing Machine
Stainless Steel Platter
Plastic Platter
Plastic Bowl
Power adapter
Operating manual
Parts Description
LEFT SIDE
AC adaptor socket
TOP
Display
ON / OFF key
Turns the power on/off
UNIT key
Toggles weighing units
Tare key
Subtracts weight of container
ZERO key
Sets display to Zero

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BOTTOM
Battery compartment cover
(Batteries not included)
Battery compartment
Assembly & Installation
The weighing machine is delivered in 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.
Unwrap and place the clear plastic bowl, open side facing up, on top of the
stainless platter.
Connecting AC Adapter & Installing Batteries
Remove the battery compartment cover and insert six (6) AA batteries (not included)
into the battery compartment, pay special attention to the polarities (+ / -) when
installing.
Insert the power adapter cable plug into the socket on the side of the machine
NOTE: the AC input requirement could be 110, 120, 220, 230 or 240 Volts (50/60 Hz)
depending on the area where used, so please verify that the adapter is correct.

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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.
Mains Voltage Safety
The following Safety recommendations should observed when connecting the balance
to the mains voltage socket.
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.

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Application Menu
Display
Key Functions
The ON/OFF key is to turn the Scale On or Off
The UNIT key is to toggle between different weight units.
The ZERO key sets the display to Zero.
The TARE key is to subtract the weight of a containers
Functions
To set these functions the scale should be off
Auto Shut Off Mode
Press and hold the “Zero” key simultaneously with the “On/Off” key.
The display will show A-On (Auto Shut off active) or
A-Off (Auto Shut off deactivated)
Press the “Zero” key to toggle between A-On and A-Off.
Setting the Backlight
Press the “Unit” key and the display will show L – On (Backlight active) or L-Off
(Backlight not active)
Press the “Zero” key to toggle between L-On and L-Off
Press the “On/Off” key to two times to return to normal operation.
Zero Indicator
Indicates when the scale
zero is correct
LOW BATTERY indicator
_______________________
______________________
WEIGHING UNIT

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Weighing Procedures
Press the “On/Off” key to turn on the scale.
Press the “Unit” key to select a unit of measure (kg, g, lb., oz, lb:oz).Once the unit
has been selected, the selected unit will be displayed next to the weight value.
If you do not use a container (or the supplied bowl), verify the reading is “0”
If the display does not show “0”, press the “Zero” key to display “0”
Place your item (s) to be weighed on the platform.
If you do use a container (or the supplied bowl):
Place an empty container (or the supplied bowl) on the platform
Wait for the weighing value to stabilize
Press the “Tare” key to display “0” with tare
Place your item (s) to be weighed in the container or bowl, the display will show
the net weight of the item (s) to be weighed.
Once finished take the item (s) and container off the scale and press the “Tare” or
“Zero” key to return to zero.
Calibration
In order to ensure exact measurements, it is recommended that the balance should be
calibrated regularly using a known external calibration weight, as with time and use,
mechanical deviations may occur.
Calibration may also be required when the scale is initially installed. Follow the
procedures below to calibrate.
Press and hold the “Unit” key and at the same time press the “On/Off” key. The
display will show CALu=. The scale is now in Calibration Mode.
Press the “Unit” key to toggle between setting units (For KHR-500, KHR-3001,
KHR-6000 are kg, g, lb, oz. For KHR-123 is g, mg, dwt, ozt, gn).
Press the “Zero” key to initiate the calibration process.
Enter the weight of your calibration weight by using the “Unit” key to toggle
between digits, and use the “Tare” key to increase each digit until the display
flashes your test weight amount.
Press the “Zero” key and the display will now show CAL then AD value.
Then press the “Unit” key and the display will show the flashing calibration
weight.
Place your test weight on the platter. Wait for the Stable Indicator to be
displayed. Press the “Unit” key and the display will return to the AD value.
Take the calibration weight off the platter and press the “On/Off” key to turn off
the scale. The calibration is now complete
Turn the scale back on. The scale will now be in Weighing Mode. Place the
weight on the platter to ensure the scale is weighing correctly. If not, turn the
scale off and repeat the calibration process again

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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.
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
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

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Replacing the batteries
Replace all batteries at the same time. Do not replace only a portion of the six batteries
as this may cause a malfunction. If the scale is not to be used for a long period of time,
remove all batteries from the battery compartment to avoid leakage, which may cause
damage.
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.