Optima Home Scales LUNA User manual

version:1.0
OPTIMA HOME SCALES
User Manual
Kitchen Scale LUNA
OPTIMA HOME SCALES
PO BOX 1526 CUMMING GA 30028 UNITED STATES
TEL:[phone] www.optimahomescales.com
Thank you very much for purchasing the OHS Kitchen Scale
LUNA.
Please read the user manual carefully and thoroughly to ensure the safe
usage of this product and keep the manual for further reference in case
you have problems.

Table of Contents
Safety Instructions
Warning Symbol
................................................................................................................. 2
Safety Instructions......................................................................................................................... 2
Product Overview
General Instructions .......................................................................................................................3
Device Components.......................................................................................................................3
Function Indication ................................................................................................................. 3
List .................................................................................................................................................4
LCD Display................................................................................................................................... 4
Initial Start-Up
Insert the Battery .................................................................................................................... 5
Changing the Unit......................................................................................................................... 6
Operation
Weighing Mode ................................................................................................................... 7
Measuring with Tare Function........................................................................................................8
Troubleshooting ..............................................................................................................................10
Specifications ..................................................................................................................................11
Maintenance.....................................................................................................................................12
Warranty ...........................................................................................................................................12
Appendix
EMC Guidance...............................................................................................................................13
1
Table of Contents

Warning Symbols
It is important to understand the meanings of the warning symbols to ensure a
correct and safe use of the product and protect you and others from injury. You may
find the meanings of the warning symbols, which you may see in the label or this user
manual, as follow:
General Instructions
OHS Kitchen Scale LUNA is used to measure the food’s weight. This
device has practical weighting function(tare) with digital LCD.
Main Features:
a. Classically elegant design
b. Easy to read digital display
c. With tare function
Device Components
Safety Instructions
•Always place the scale on a solid, level and flat surface to weigh.
•Always place the object to be weighed at the center of the weighing platform.
•Do not place any object on the weighing platform before switching the scale on.
•If the scale is not to being used for a long period, please remove the battery.
•Clean the scale with a slightly damp cloth, DO NOT immerse the scale inwater
ON/OFF/TARE Button
UNIT Button
LCD Display
Battery Compartment Cover
or use chemical/abrasive cleaning agents.
•Keep the scale in a cool dry area. Function Indication
Press the ON/OFF/TARE button to switch to thermometer mode when the LCD
displays zero.
Press the ON/OFF/TARE button to reset the display to zero when the scale is in
the weighing mode.
Press the ON/OFF/TARE button to switch to weighing mode when the scale is in
the thermometer mode.
Press the UNIT button to select your desired weight / temperature unit.
2 3
Safety Instructions
Product Overview
Symbol for “THE OPERATION
GUIDE MUST BE READ”
Symbol for “COMPLIES WITH EU
REQUIREMENTS”
Symbol for “DIRECT CURRENT”
Symbol for “ENVIRONMENT
PROTECTION –Waste electrical
products should not be disposed of with
household waste. Please recycle where
facilities exist. Check with your local
authority or retailer for recycling advice”
Symbol for “MANUFACTURER”
Symbol for “SERIAL NUMBER”

List
1. Kitchen Scale LUNA
2. 1xCR2032 battery (3V)
3. User Manual
LCD Display
Insert the Battery
Open the battery compartment cover in the back
of the scale.
Remove insulating strip from beneath the battery
(if fitted) or insert battery (1 x 3V CR2032)
observing the polarity signs (+ and -) inside the
battery compartment.
Close the battery compartment cover.
The LCD displays as below:
4 5
Product Overview
Initial Start-Up
CAUTION
When the symbol “ ”appears, the device will power off. Then you shall replace with a new battery.
Worn batteries are hazardous waste. Do NOT dispose of them together with the household garbage.
Please refer to the local ordinances and recycling instructions regarding disposal of the worn batteries.
To achieve the best performance and protect your scale, please use the authorized/specified
batteries.
Tare Function
Weight Unit (Pound)
Volume Unit (Milliliter)
Weight Unit (Gram)
Volume Unit (Ounce)
Negative value
Low Battery
Temperature Indicator

Changing the Unit
1. When in the weighing mode, press the UNITbutton,
you can select the weight unit among g, oz, lb:oz, ml.
(The default weight unit is g.)
Weighing Mode
Before weighing, you may select your desired weight unit.
(Refer to Changing the Unit for more details)
1. Place the scale on a solid, level and flat surface to weigh.
2. Do not put anything on the scale.
3. Press the ON/OFF/TARE button lightly to enter the weighingmode.
4. You can start to weigh when “0” is shown on the LCD.
5. Place the item you wish to weigh onto the scale, the weight data will beshown.
2. When in the thermometer mode, press the UNIT button,
you can select the temperature unit between ℃and ℉. 6. If there is no operation, the scale will switch to display the currenttemperature.
6 7
Initial Start-Up
Operation
CAUTION
If there is no operation, the scale will switch to the thermometer mode
automatically after about 1 minute, and display the current temperature,
this means the scale is off.

Measuring with Tare Function
TARE function allows you to weigh different items consecutively without removing
the items from the scale.
1. When the scale displays the temperature, press the ON/OFF/TARE button to
switch to the weighing mode. You can start to weigh when “0” is shown on the
LCD.
4. Now add another item to weigh onto the scale. The LCD will show the weight
of the newly added item.
5. If you remove the item added to the scale, the LCD will again show zero. But if
you remove all items from the scale, the LCD will show a negative value indicated
by a minus sign.
2. Place the first item you wish to weight onto the scale, the LCD will show the
weight of the first item.
3. Press the ON/OFF/TARE button to reset the display tozero.
6. Press the ON/OFF/TARE button again, it will clear to zero.
7. If there is no operation, the scale will switch to display the currenttemperature.
8 9
Operation
Operation
CAUTION
If the weight is less than 50g, the "TARE" icon will not appear
on the display by pressing the ON/OFF/TARE button.
CAUTION
When it’s in the thermometer mode, press ON/OFF/TARE button, it will
enter the weighing mode.
When the LCD display zero, press ON/OFF/TARE button, it will enter the
thermometer mode.

Troubleshooting Specifications
About the Accuracy of This Product
This product passes strict inspection before delivery and therefore its accuracy is guaranteed by the manufacturer.
Please refer to the above table for the descriptions on accuracy.
WARNING: No modification of this equipment is allowed.
10 11
Product Name
Kitchen Scale
Dimension
Whole size: Día 170x22mm (Approximately)
Net Weight
Approximately 380g
Display
Digital LCD
Measurement Unit
g/lb:oz/ml/oz
Measurement Range
5000 g/11 lb:0.4 oz/5000 ml/176.4 oz
Minimal Weight
2g
Division
1g /0.1oz/1ml/0.1oz
Accuracy
F.S*1.5‰+1d
Working Environment
Temperature: 5℃to 40℃Relative Humidity: ≤90% RH
Atmospheric pressure: 86kPa to 106kPa
Storage Environment
Temperature: -20℃to 60℃Relative Humidity: ≤90% RH
Atmospheric pressure: 50kPa to 106kPa
Power Source
3V (1 x CR2032 battery)
Auto-Off
About 1 minute after clearing,
or about 1 minute after the weight is stable.
Accessories
1. 1 x CR2032 battery
2. User Manual
Problem
Root Cause
Solution
The LCD display
is dim or displays
The power is not enough.
Please replace with 1 x CR2032
new battery.
The device isn’t
on when you press
the ON/OFF/TARE
button.
The batteries are
exhaust.
Please replace with 1 x CR2032
new battery.
The battery is not inserted
correctly.
Please insert the battery
according to the indication
correctly.
The LCD displays
Overload.
Please remove the weight on
the scale to protect the loadcells.
Suggest buy a new scale with
higher weight range.
The LCD displays
The objects, which weigh
over 1000g, are placed
on the scale before it is
switched on.
Remove the objects from the
scale, wait until it displays zero,
then you can start weighing.
The measurement
is not accurate/
LCD display .
The weight is unstable when
you turn on the scale.
Keep the weight stable when you
turn on the scale.
Troubleshooting
Specifications

Maintenance
When carrying out usual maintenance, please ensure practice of the following Do’s and
Don’ts:
DO use a dry soft cloth to wipe the dust.
DO use a wet soft cloth, dipped into water and wrung out, to wipe the dirt. Then use a
dry soft cloth to dry up the device.
DON’T wash the device with water or immerse it in water.
DON’T use propellant, abrasive or other chemicals to wipe the dirt in avoidance of
discolor or malfunction.
DON’T disassemble this device. If you have any problems, please contact OHS.
(Please refer to Warranty for contact information)
EMC Guidance
1. MEDICAL ELECTRICAL EQUIPMENT needs special precautions regarding EMC and
needs to be installed and put into service according to the EMC information provided in
the ACCOMPANYING DOCUMENTS.
2. Wireless communications equipment such as wireless home network devices, mobile
phones, cordless telephones and their base stations, walkie-talkies can affect this
equipment and should be kept at least a distance d = 3,3 m away from the equipment.
(Note. As indicated in Table 6 of IEC 60601-1-2:2007 for ME EQUIPMENT, a typical cell
phone with a maximum output power of 2 W yields d = 3,3 m at an IMMUNITY LEVEL of
3 V/m)
Warranty
OHS warrants its products free of defects in materials and workmanship in normal
use for a period of TEN years from the date of retail purchase.
This warranty does NOT cover damages caused by misuse or abuse, including but not
limited to:
Failure caused by unauthorized repairs or modifications;
Damage caused by shock or drop during transportation;
Failure caused by improper operation inconsistent with the instructions stated in this user
manual;
Malfunction or damage from failure to provide the recommended maintenance;
Damage caused by improper use of power supply.
Should this device require maintenance (or replacement at our option) under warranty,
please deliver the original package to OPTIMA HOME SCALES prepaid. Please return
the store receipt (with the retail purchase date) and a note with reasons to return on it
as well.
12 13
Maintenance
Appendix
OPTIMA HOME SCALES
PO BOX 1526 CUMMING GA 30028 UNITED STATES
Tel: [phone]
Website: www.optimahomescales.com