oserio MEG-213 User manual

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User Manual
MEG-213 BMI Scale
Please keep the instruction manual at hand all the time for future reference.

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Explanation of the Graphic Symbols on Label/Packaging
Indicates that device conforms to Declaration of
Conformity requirements
Separate collection for waste of electrical and
electronic equipment, in accordance with Directive
2002/96/EC
Carefully read user manual before installation and
usage, and follow instructions for use.
Caution, consult accompanying documents before use

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Copyright Notice
Charder Electronic Co., Ltd.
No.103, Guozhong Rd., Dali Dist., Taichung City 41262 Taiwan
Tel: [phone]
Fax: [phone]
Website: www.oserio.com E-mail: i[email protected]
Copyright© Charder Electronic Co., Ltd. All rights reserved.
This user manual is protected by international copyright law. All content is
licensed, and usage is subject to written authorization from Charder
Electronic Co., Ltd. (hereinafter Charder) Charder is not liable for any
damage caused by a failure to adhere to requirements stated in this
manual. Charder reserves the right to correct misprints in the manual
without prior notice, and modify the exterior of the product for quality
purposes without customer consent.

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Table of Contents
I. Before Use 5
A. General Information 5
II. Product Description 6
A. Overview 6
B. Inserting Batteries 7
III. How to Use 8
A. Self-calibration 8
B. Operation flowchart 9
C. Measurement Results Explained 15
IV. Caring for your product 17
A. Use & Storage 17
B. Service and maintenance 17
V. Troubleshooting 18
VI. Product Specifications 19

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I. Before Use
A. General Information
Thank you for choosing this Oserio product. Before use, please read this
user manual carefully, and keep it in a safe place for reference. It contains
important instructions regarding proper usage.
Intended Use
This product is intended to measure the weight and bioelectrical
impedance of children or adults who can stand unassisted, using input
data to calculate subject's body composition
General Handling
Product should be placed on stable, flat, solid, non-slippery surface.
Place the product in an area free from direct sunlight, heating
equipment, high humidity, or extreme temperature change.
Never submerge in water.
Usage on soft surfaces (ex: carpet) may result in inaccurate results.
Disposal
All batteries contain toxic compounds; batteries should be disposed
of via designated competent organizations. Batteries should not be
incinerated.
This product is not to be treated as regular household waste, but
should be taken to a designated collection points for electronics.

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Further information should be provided by local waste disposal
authorities.
II. Product Description
A. Overview
1. LCD screen
2. Set button, ▲Up / ▼Down buttons
3. Measurement platform
4. Feet
5. Battery cover

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B. Inserting Batteries
Press tab to lift and open battery housing cover
Insert 4 AA batteries
NOTE: Ensure batteries are inserted in correct orientation. If batteries
are inserted incorrectly, product will not function. If product will not be
used for a long period of time (> 3 months), remove the batteries before
storage.

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III. How to Use
A. Self-calibration
After inserting batteries or moving the
scale, please perform a quick
self-calibration before weighing
Step on the scale (weight reading does not
have to be locked)
Step off from the scale
The scale is now re-calibrated and ready for
weight measurement

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B. Operation flowchart
Scale will store the last chosen mode when turned off.

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1-A: Weight Mode
Scale will read out measurement result, and turn off automatically
once complete

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1-B: BMI/Body Water/BMR/Bone Mass Mode

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1-C: Target Weight Mode
Scale will read out measurement result, and turn off automatically
once complete

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1-D: Mommy/Baby Mode

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1-E: Memory Mode

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C. Measurement Results Explained
Results will be categorized into "low", "normal", "high", or "very high".
Body Mass Index (BMI)
BMI is a commonly used index by the World Health Organization (WHO),
utilizing height and weight to classify underweight, normal, over, and
obesity in adults.
Category
BMI (kg/m2)
Risk of obesity-related disease
Under
< 18.5
Low
Normal
18.5-24.9
Average
Over
24.9-29.9
Slightly Increased
Obese I
30.0-34.9
Increased
Obese II
35.0-39.9
High
Obese III
> 40
Very High
(World Health Organization adult BMI standards)
Body Water
Body water refers to the water contained in the tissues, blood, bones, and
elsewhere. Body water in a healthy (non-obese) adult can fluctuate by
roughly 5% daily, influenced by physiological activity and consumption of
food and drink1. Due to larger size and muscle mass, healthy adult men
tend to have more body water than women (on average)2.
Typically, children have a higher percentage of body water than adults,
and body water levels reportedly decrease further around middle age as
part of the aging process3. In addition, various diseases can affect body
water percentage4.Therefore, BIA estimations should be used with
particular caution if subject's body water differs significantly from the
representative populations used to formulate BIA algorithms.
1Askew EW Present Knowledge in Nutrition (7th ed) 1996, p.98-107
2Lesser GT, Markofsky J. Body water compartments with human aging using fat-free mass
as the reference standard. 1979. Am J Physiol, 236, p.R215-R220.
3Cameron CW, Guo SS, Zeller CM, Reo NV, Siervogel RM. Total body water for white adults
18 to 64 years of age: The Fels Longitudinal Study. 1999. Kidney Internationalk Vol.56 Issue
1, p.244-252
4Moore FD, Haley HB, Bering EA, Brooks L, Edelman I. Further observations on total body
water. Changes of body composition in disease. 1952. Surg Gynecol Obstet, 95, p.155-180

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Basal Metabolic Rate (BMR)
Basal metabolic rate is the minimum required energy to sustain the
body's vital functions while at rest. These functions include breathing,
blood circulation, regulation of body temperature, cell growth, brain
function, and nerve function. BMR tends to decrease with age or reduction
in weight, and is positively correlated with increase in muscle.
Bone Mineral Mass
Higher bone mineral content may be an indicator of higher bone density.

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IV. Caring for your product
A. Use & Storage
․Product should be stored in clean, cool, dry location when not in use,
away from direct sunlight and extreme temperatures.
․This product is not a toy. Children should not be allowed to play with
it.
․Avoid corrosive liquids and materials. Do not use detergents or
cleaners to clean the product.
․Wipe the platform and display using clean soft cloth. Avoid rough,
sticky cloth, to prevent scratching the measurement platform and
screen panels.
B. Service and maintenance
The MEG-213 does not contain user-maintained parts. Service and
maintenance not described in this user manual should be performed only
by authorized technicians.

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V. Troubleshooting
Error Messages
Error Message
Reason and action required
Low battery warning
Replace batteries
Overload weight
Total load exceeds product's maximum capacity.
Unstable weight
Stay still and avoid movement during
measurement.
Measurement error
Calculated body water exceeds maximum
capacity; measurement cannot be completed.
Device error
EEPROM inactive. Reset user profiles, or contact
distributor for service.

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VI. Product Specifications
Model
MEG-213 BMI Scale
Battery
4 AA batteries
Product
Weight
1.3 kg
Dimensions
Product: 330(W) x 330(D) x 30(H) mm
Screen: 92(W) x 45(D)
Operation
Environment
Temperature: 5℃~35℃
Relative Humidity: 30%~85%
Storage
Environment
Temperature: -20℃~60℃
Relative Humidity: 10%~95%
Capacity /
Graduation
5~180 kg x 0.1 kg
Measurement
Sensors
4 weight sensors
Measurement
Output
Weight
Target Weight
Body Mass Index (BMI)
Body Water
Basal Metabolic Rate
Bone Mineral Mass

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Manufactured by:
Krell Precision (Yangzhou) Co., Ltd.
No.28, Xinyang Rd., Development Zone,
Yangzhou City, Jiangsu Province, 225009, P.R.China
on behalf of
Charder Electronic Co., Ltd.
No.103, Guozhong Rd., Dali Dist.,
Taichung City, 41262, Taiwan (R.O.C.)
CD-PA-XXXXX REV 001 08/2020