OMRON HBF-222T Body Composition Monitor

Model: HBF-222T

Instruction Manual

Introduction

Thank you for purchasing the OMRON Body Composition Monitor HBF-222T. This manual provides instructions for safe and proper use. Please store it for future reference.

Intended Use

This unit is intended for measuring and displaying body composition parameters including:

Body Weight
Body Fat (in %)
Visceral Fat (up to 30 levels)
Skeletal Muscle (in %)
Resting Metabolism (in kcal)
BMI (Body Mass Index)

The device also calculates a Body Age for reference, which is an indication only and not a medical value.

This unit is intended for adult home use and is not for professional use in hospitals or medical facilities.

Before Using the Unit

Notes on Safety

Symbols and definitions:

Danger: Improper use may cause death or serious injury.
Warning: Improper use may result in possible death or serious injury.
Caution: Improper use may result in injury or property damage.

Danger

[Danger] Never use this unit in combination with medical electronic devices such as pacemakers, artificial life support systems, or portable electrocardiographs, as it could cause malfunction and pose a health risk.

Warning

Keep out of reach of young children; contains small parts that may cause choking hazards.
Do not use on slippery surfaces (e.g., wet floors).
Do not jump or bounce on the unit.
Do not use when your body or feet are wet (e.g., after bathing).
Stand on the unit bare-footed. Wearing socks may cause slipping.
Do not step on the edge or display area.
People with disabilities or who are physically frail should be assisted by another person.
If battery fluid gets in eyes, rinse immediately with plenty of clean water and consult a physician.
Do not use in hospitals, aircrafts, or other environments where radio waves are restricted.
This product emits radio frequencies (RF) in the 2.4 GHz band.

Caution

Do not disassemble, repair, or remodel the unit.
Consult a physician before starting a weight reduction or exercise program.
During measurement, ensure no mobile phones or other devices emitting electromagnetic fields are within 30cm to avoid incorrect operation or inaccurate readings.
Use specified batteries and insert them with correct polarity.
Replace worn batteries immediately.
Do not dispose of batteries in fire.
If battery fluid gets on skin or clothing, rinse with plenty of clean water.
Remove batteries if the unit will not be used for a long period (approx. three months or more).
Do not mix battery types or new and worn batteries.
Always wash feet before use. If you have a foot infection, you may cause infection to others.
When used by multiple people, wipe the unit with a damp cloth and mild detergent, then dry.
Do not use for purposes other than described in this manual.
Do not drop, vibrate, or apply strong shock to the unit.

Data Transmission

Do not replace batteries while measurement results are being transferred to your smart device.
Do not place integrated circuit cards, magnets, metal objects, or other devices emitting electromagnetic fields near the monitor during data transfer.

Read and follow the "Important information regarding Electro Magnetic Compatibility (EMC)" in the Technical Data Section.

Incorrect Measurement

Incorrect measurement might occur for: Elderly people (over 81 years old) / People with a fever / Body builders or highly trained athletes / Patients undergoing dialysis / Patients with osteoporosis / Pregnant women / People with swelling. This is because body composition (e.g., body water) may deviate significantly from the average value.

1. Know Your Unit

Main Unit Components:

Display: Shows measurement results and settings.
Foot Electrodes (Front and Rear): Conductors for electrical current.
ON/OFF Button: Press to turn on; press and hold (2+ seconds) to turn off.
Bluetooth Button: Press to transfer data manually; press and hold (2+ seconds) to pair with a smart device. Usable when the power is off.
SET Button: Press to set or confirm data.
Advance Button: Press to advance; press and hold to advance rapidly during date, time, and height settings.

Display Indicators:

Personal Number Symbol (?): Lights when personal number is displayed.
Weight Symbol (⚖️): Lights when only measuring body weight.
Battery Symbol (?): Indicates low/depleted battery.
SYNC Symbol (?): Indicates data synchronization status.
Bluetooth Symbol (?): Indicates Bluetooth status.
Measurement Indicators: Body Fat Percentage, Visceral Fat Level, Skeletal Muscle Percentage, BMI Classification Indicator.

2. Insert and Replace the Batteries

Procedure:

Open the battery cover on the back of the unit.
Install four AAA alkaline batteries (LR03) with correct polarity.
Close the battery cover.

Battery Life and Replacement:

Approximately 6 months (based on 4 measurements/day for 4 persons with AAA alkaline batteries at 23°C).
Supplied batteries are for trial use and may have shorter life.
Replace all four batteries when the depleted battery symbol (?) appears.
Replace batteries with new ones of the same type simultaneously.
It is recommended to replace batteries when the low battery symbol blinks.
Replace batteries after turning off the unit.
Personal data is retained when batteries are removed.
Dispose of used batteries according to national regulations.
After replacing batteries, reset the date and time (Section 4). If paired with "OMRON connect" app, date/time and personal data can be set automatically via Bluetooth.

About the Power OFF Function

The power turns off automatically after 10 seconds if "Err" is displayed, or after 1 minute of inactivity when "0.0 kg" is displayed, or after 3 minutes of inactivity otherwise. Press and hold the ON/OFF button (2+ seconds) to turn off manually.

3. Pair the Unit with Your Smart Device

Requirements:

Turn on Bluetooth on your smart device.
Download and install the "OMRON connect" app from the App Store or Google Play, or by scanning the QR code at www.omronconnect.com/setup.

Pairing Steps:

Open the "OMRON connect" app and follow the setup and pairing instructions.
If you already have the app, go to Menu > Device > Add Device.

One smart device manages data for one user. Use of other apps may result in incorrect data transfer. Refer to the app's instructions for details.

4. Set the Date and Time

This is necessary before the first measurement or after replacing batteries. Date and time can also be set via the "OMRON connect" app.

Press the ON/OFF button (▶️). The year blinks.
Select the year using the Advance button (➡️) and confirm with the SET button (✅). Setting range: 2017 to 2045.
Set the month, day, hour, and minute using the Advance button (➡️) and confirm with the SET button (✅). The time is in 12-hour format. Hold the Advance button (➡️) to advance rapidly.

After all settings are displayed, the power turns off automatically. If a mistake is made, turn off the unit and restart from Step 1. The unit turns off if not used for 3 minutes; reset date/time anew. To modify, remove batteries for 20+ seconds, reinsert, and reset.

5. Register the Personal Data

Press the ON/OFF button (▶️). Personal number "1" blinks. Birth date (YYYY) is displayed.
Select your personal number (1-4) using the Advance button (➡️) and confirm with the SET button (✅).
Set the birth date (Year, Month, Day) using the Advance button (➡️) and confirm with the SET button (✅). Year range: 1900 to 2045. Hold Advance button (➡️) to advance rapidly.
Set the gender (MALE/FEMALE) using the Advance button (➡️) and confirm with the SET button (✅).
Set the height (cm) using the Advance button (➡️) and confirm with the SET button (✅). Hold Advance button (➡️) to advance rapidly (increments of 10 cm).

After confirmation, "0.0 kg" appears. Step onto the unit to take a measurement. The unit automatically recognizes personal data. After measurement results are displayed, step off. Personal data registration is complete. Press ON/OFF (2+ seconds) to turn off. To add new data, start from Step 1.

Operating Instructions

6. How to Take a Measurement Accurately

6.1 Correct postures during the measurement

Step onto the unit with bare feet. Place the arches of your feet onto the center of the unit.
Do not bend your knees during measurement.
Take a measurement on a hard and flat floor. A cushioned floor (mat, carpet) may result in inaccurate measurement.

Stepping onto the unit with socks or footwear will result in an inaccurate measurement.

6.2 About the "0 kg correction" (Caution for storing)

The unit automatically corrects accuracy when not in use. If the unit is placed on an uneven surface or objects are placed on it, this function may not work. In such cases, implement the "0 kg correction" before measurement.

Incorrect placement scenarios:

Objects placed on the unit.
Unit placed on an uneven surface.
Unit placed on a soft surface (carpet).

6.3 How to implement the "0 kg correction"

Place the unit on a hard and flat floor.
Press the ON/OFF button (▶️).
Select your personal number (1-4) or Guest Mode (" ") using the Advance button (➡️) and confirm with the SET button (✅).
When "0.0 kg" is displayed, press and hold the ON/OFF button (2+ seconds) to turn off the power.

Wait 5 seconds, then take a measurement. This completes the "0 kg correction".

7. Take a Measurement

When a person steps onto the unit, it powers on, recognizes the personal number automatically, and starts measurement.

Automatic Recognition Issues: Wrong personal number may be displayed if users have similar body types/weights, or if your body weight has changed significantly since the last measurement.

If inaccurate recognition continues, manually select your personal number (Section 9).

Take a measurement when the unit power is off. Step onto the unit; it will turn on automatically.
When the personal number and measurement results are displayed, the measurement is complete. Step off the unit.
Confirm your personal number:
- If correct: Press the SET button (✅). The personal number disappears. Results are recorded.
- If incorrect: Before power off, select the correct personal number using the Advance button (➡️) and confirm with the SET button (✅).
- If you confirmed incorrectly: Press the Advance button (➡️) again to re-select the personal number.
- If "no 1" to "no 4" or "GUEST" blinks, personal data is not registered. Register your data or use Guest Mode.
Check the measurement results: The results display rotates automatically (Weight, BMI, Body Fat %, Resting Metabolism, Visceral Fat Level, Body Age, Skeletal Muscle %). Use the Advance button (➡️) to switch to a desired result.
Press the ON/OFF button (2+ seconds) to turn off the power. The power turns off automatically if the unit is not used for 3 minutes.

Use Body Fat Percentage, Visceral Fat Level, Skeletal Muscle Percentage, and BMI classification as a guide. Refer to Sections 17 and 18 for detailed interpretation.

8. View the Measurement Results on Your Smart Device

Follow the instructions in the "OMRON connect" app to view measurement results and track variations in weight and body composition. (Requires "OMRON connect" app installed, see Section 3).

When Necessary

9. Select Your Personal Number and Take a Measurement

Use this if your personal number is not recognized frequently.

Press the ON/OFF button (▶️). Personal number "1" blinks.
Select your personal number (1-4) using the Advance button (➡️). If birth date is displayed, data is not registered; register it (Section 5).
Press the SET button (✅) to confirm your personal number. "0.0 kg" is displayed.
Step onto the unit when "0.0 kg" is displayed to take a measurement.
Check the measurement results as they rotate automatically.
Press ON/OFF (2+ seconds) to turn off the power.

10. Guest Mode (Unrecorded Mode)

Measurement results will not be recorded in this mode.

Press the ON/OFF button (▶️). Personal number "1" blinks.
Select "GUEST" using the Advance button (➡️) and confirm with the SET button (✅).
Enter personal data: Set birth date (Year, Month, Day), gender (MALE/FEMALE), and height (cm) using the Advance button (➡️) and SET button (✅), similar to Section 5.
After confirmation, "0.0 kg" appears. Step onto the unit to start measurement.
Check the measurement results as they rotate automatically.
Press ON/OFF (2+ seconds) to turn off the power.

11. Measure Weight Only

Measurement results will not be recorded in this mode.

Press the ON/OFF button (▶️). Personal number "1" blinks.
Select " " (Weight Only) using the Advance button (➡️) and confirm with the SET button (✅).
Step onto the unit when "0.0 kg" is displayed.
Your weight is displayed and blinks to indicate completion.
Press ON/OFF (2+ seconds) to turn off the power.

12. Change or Delete Your Personal Data

Procedure:

Press the ON/OFF button (▶️). Personal number "1" blinks.
Select the personal number to modify/delete using the Advance button (➡️). If birth date is displayed, data is not registered.
Press the SET button (✅) to confirm the personal number. "0.0 kg" is displayed.
Press the Advance button (➡️). "CHANGE" and "DEL" blink.
To Change Data: Select "CHANGE" using the Advance button (➡️), press SET button (✅). Change birth date, gender, and height as per Section 5.
To Delete Data: Select "DEL" using the Advance button (➡️), press SET button (✅). The year blinks. Press SET button (✅) again to confirm deletion. (Measurement results will also be deleted).

If using a personal number previously used by another person, delete the old data first. Untransferred measurement results will not be changed. To stop halfway, press ON/OFF (2+ seconds).

13. Delete the Communication Setting

To stop using the "OMRON connect" app or delete communication settings:

Press and hold the Bluetooth button (?) for more than 2 seconds. " " and the Bluetooth symbol blink.
Press and hold the Bluetooth button (?) for more than 2 seconds again. " " and "CLr" blink.
Press the SET button (✅) to confirm.

The power turns off if the unit is not used for 10 seconds after "CLr" is displayed.

14. Maintenance and Storage

How to Clean the Unit

Wipe with a soft dry cloth.
If necessary, use a cloth moistened with water or mild detergent, squeeze well, then wipe dry.
Do not use benzene, thinner, or other volatile solvents.
Do not wash the unit with water.

Care and Storage

Do not store in humid, high-temperature, direct sunlight, dusty, or places with risk of shocks, vibrations, chemicals, or corrosive gas.
Do not attempt repairs yourself. Contact an authorized OMRON distributor for accuracy concerns. Inspection every 2 years is recommended.

15. Troubleshooting

Check that no other electrical device is within 30cm. If problems persist, refer to the table.

Error Display / Problem	Cause	Correction
`E1`	Stepped off unit during measurement.	Remain on unit until measurement is complete (Section 6).
`E2`	Soles not in firm contact with electrodes.	Stand correctly, soles firmly on electrodes (Section 6).
`E3`	Incorrect posture, dry soles, or poor contact.	Stand straight, feet firmly on electrodes, do not move. Slightly moisten soles if dry (Section 6).
`E4`	Device error.	Turn power on again. If error persists, consult OMRON service.
`E5`	Communication failure.	Turn power off, try communicating again. If error persists, contact OMRON service.
`E6`	Moved during measurement.	Stand still during measurement.
`E7`	Body weight out of measurable range.	Ensure weight is between 2.0 kg and 150.0 kg.
`E8`	Communication failure.	Check smart device display and "OMRON connect" app instructions. Refer to "Help" in the app.
`E9`	Batteries are low.	Replace batteries soon (Section 2).
(Empty Display)	No batteries inserted; batteries inserted incorrectly; worn-out batteries.	Insert batteries correctly; replace all four batteries with new ones.
(Empty Display after battery replacement)	Date and time not set after battery replacement.	Set date and time (Section 4).
" " is displayed for some results	Body weight too low (less than 12 kg).	Select personal number before measurement.
" " is displayed for some results	Registered data or body composition values out of measurable range.	Check birth date, gender, height settings. If correct, values may be outside supported age range.
(Battery symbol blinking)	24-29 sets of measurements stored.	Transfer results to "OMRON connect" app.
(Battery symbol blinking)	30 sets of measurements stored.	Transfer results to "OMRON connect" app. Oldest results are deleted if >30.
(Bluetooth symbol blinking)	Pairing mode initiated.	Press ON/OFF (2+ seconds) to stop pairing. Follow "OMRON connect" app instructions.
(SYNC symbol blinking)	Data transfer in progress.	Press ON/OFF (2+ seconds) to stop transmission. Follow "OMRON connect" app instructions.
"CLr" is displayed	Communication setting deletion initiated.	Press ON/OFF (2+ seconds) to stop operation. Refer to Section 13.
A button does not respond.	Button is wet or contaminated.	Wipe off water or stain.
A button does not respond.	Two or more buttons pressed simultaneously.	Press one button at a time.
Power turns off even if no action is taken.	Refer to "About the Power OFF Function" (Section 2).	N/A
Failure to send data	N/A	Refer to "Help" in "OMRON connect" app.

16. Technical Data

Category	Specification
Product Category	Body Composition Analyzers
Product Description	Body Composition Monitor
Model (code)	HBF-222T (HBF-222T-APW/HBF-222T-INW)
Display*	Body Weight: 2.0 to 150.0 kg (0.1 kg increment) Body Fat percentage: 5.0 to 50.0% (0.1% increment) Skeletal Muscle percentage: 5.0 to 60.0% (0.1% increment) BMI: 2.5 to 90.0 (0.1 increment) Resting Metabolism: 385 to 3999 kcal (1 kcal increment) Body Age: 18 to 80 years (1 year increment) Visceral Fat Level: 30 levels (1 level increment) Body fat percentage, Skeletal muscle percentage and BMI classification: (Low) / 0 (Normal) / + (High) / ++ (Very High) - 4 levels Visceral fat level classification: 0 (Normal) / + (High) / ++ (Very High) - 3 levels * The age range for Body Fat percentage, Body fat percentage classification, Skeletal Muscle percentage, Skeletal Muscle percentage classification, Resting Metabolism is 6 to 80 years old. The age range for Visceral Fat level, Visceral Fat level classification and Body Age is 18 to 80 years old.
Transmission Protocol	Bluetooth® low energy technology (Frequency range: 2.4 GHz, Modulation: GFSK, Effective radiated power: <20 dBm)
Setting Items*	Measurement unit: kg&cm Birth date: January 1st, 1900 to December 31st, 2045 Gender: Male / Female Height: 100.0 to 199.5 cm (0.5 cm increment) * When height is less than 100.0 cm or more than 199.5 cm, BMI and body composition results are for reference.
Weight Accuracy	2.0 kg to 40.0 kg: ± 0.4 kg 40.0 kg to 150.0 kg: ± 1%
Body Fat percentage Accuracy	3%
Skeletal Muscle percentage Accuracy	3.5%
Visceral Fat Level Accuracy	2 levels
Durable Period	5 years
IP Classification	IP21
Power Supply	4 AAA alkaline batteries (LR03)
Battery Life	Approximately 6 months (When AAA alkaline batteries are used in four measurements, four data transfers and four persons a day at a room temperature of 23°C)
Operating Temperature/Humidity/Air Pressure	+5°C to +40°C, 30% to 85% RH (non-condensing), 860 hPa - 1060 hPa
Storage and Transport Temperature/Humidity/Air Pressure	-20°C to +60°C, 10% to 95% RH (non-condensing), 860 hPa - 1060 hPa
Weight	Approximately 1.6 kg (including batteries)
External Dimensions	Approx. 285(W)×28(H)×280(D) mm (Approx. 11 1/5"(W)×1 1/10"(H)×11"(D))
Contents	Body composition monitor, 4 AAA alkaline batteries (LR03), setup instructions, instruction manual, caution sheet

Subject to technical modification without prior notice.

This device fulfils the provisions of EC directive 93/42/EEC (Medical Device Directive).

This Product operates in the unlicensed ISM band at 2.4GHz. Interference may occur with other wireless devices operating on the same frequency band. Stop operation of other devices or relocate this Product if interference occurs.

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by OMRON HEALTHCARE Co., Ltd. is under license. Hereby, OMRON HEALTHCARE Co., Ltd., declares that the radio equipment type is in compliance with Directive 2014/53/EU. Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc. Android, the Google Play logo are trademarks of Google Inc.

Important information regarding Electro Magnetic Compatibility (EMC)

This device manufactured by OMRON HEALTHCARE Co., Ltd. conforms to EN60601-1-2:2015 Electro Magnetic Compatibility (EMC) standard. Further documentation is available at OMRON HEALTHCARE EUROPE or www.omron-healthcare.com.

Correct Disposal of this Product (Waste Electrical & Electronic Equipment)

This marking on the product or its literature indicates it should not be disposed of with other household wastes at the end of its working life. To prevent harm to the environment or human health from uncontrolled waste disposal, separate it from other wastes and recycle it responsibly to promote the sustainable reuse of material resources. Household users should contact their retailer or local government office for details on environmentally safe recycling. Business users should contact their supplier and check purchase contract terms. This product should not be mixed with other commercial wastes for disposal.

This product does not contain hazardous substances. Disposal of used batteries should be carried out according to national regulations.

Description of symbols:

Applied part - Type BF: Degree of protection against electric shock.
IP XX: Ingress protection degree.
CE Marking: Conforms to EU directives.
GOST-R symbol: Symbol of Eurasian Conformity.
Direct current: DC power.
[Consult instructions]: Need for the user to consult the instructions for use.
Medical Implant Warning: This product should not be used by persons with medical implants (e.g., heart pacemakers).
Production Date: Integrated in the serial number (first 4 digits = year, next 2 digits = month).

17. Information on Body Composition

Principle of body composition calculation

Body fat has low electric conductivity. HBF-222T measures body fat percentage using the Bioelectrical Impedance (BI) method. Muscles, blood vessels, and bones have high water content and conduct electricity easily. Body fat has low conductivity. The unit sends a weak electrical current (50 kHz, <500 µA) through the body, which is not felt during operation. The unit uses electrical impedance, along with height, weight, age, and gender information, to generate results based on OMRON's body composition data.

Recommended measurement times

Understanding normal changes in body fat percentage helps in preventing or reducing obesity. Using the unit in the same environment and daily circumstances assists in obtaining accurate trending.

Recommended times:

After waking up
Before lunch and about 2 hours or more after breakfast
In the afternoon about 2 hours or more after lunch and before taking a bath or eating dinner
Before going to bed and about 2 hours or more after dinner or bath

Avoid measurement under the following conditions:

Immediately after vigorous exercise, after a bath or sauna.
After drinking alcohol or a large amount of water, after a meal (about 2 hours).

Measurements taken under these conditions may differ significantly from actual values due to changes in body water content.

What is BMI (Body Mass Index)?

BMI is the ratio between weight and height.

BMI = weight (kg) / height (m) / height (m)

The OMRON HBF-222T calculates BMI classification using stored personal data or guest mode information. A high BMI may indicate an increased likelihood of common diseases, though it does not reveal all types of fat.

What is Body Fat Percentage?

Body fat percentage refers to the amount of body fat mass relative to total body weight, expressed as a percentage.

Body fat percentage (%) = {Body fat mass (kg) / Body weight (kg)} × 100

The HBF-222T estimates body fat percentage using the BI method. Fat is classified as visceral fat or subcutaneous fat based on distribution.

What is Visceral Fat Level?

Visceral fat is fat surrounding internal organs. Excess visceral fat is linked to increased blood fat levels, potentially leading to hyperlipidemia and diabetes. High visceral fat levels are often associated with a large stomach, but can also occur in individuals with normal weight (metabolic obesity).

What is Subcutaneous Fat?

Subcutaneous fat is fat below the skin. It accumulates around the stomach, upper arms, hips, and thighs, affecting body proportions. While not directly linked to disease risk, it can increase pressure on the heart. Subcutaneous fat is included in the body fat percentage but not displayed separately by this unit.

What is Skeletal Muscle?

Skeletal muscle is attached to bones and used for body movement. It can be increased through exercise. A higher skeletal muscle ratio helps the body burn energy more easily, reducing fat accumulation and promoting an energetic lifestyle.

What is Resting Metabolism?

Resting metabolism is the minimum caloric intake required to sustain the body's everyday functions, regardless of activity level. It indicates the number of calories needed for basic bodily functions.

What is Body Age?

Body age is based on resting metabolism. It is calculated as a guide to indicate whether your overall body composition profile (weight, body fat percentage, skeletal muscle percentage) is above or below the average for your actual age. Knowing your body age can help improve your health condition.

18. Measurement Results Interpretation Diagrams

Interpreting the Body Fat Percentage Result

Body Fat Percentage	Male	Female
5.0 ~ 9.9%	5.0 ~ 19.9 %	- (Low)
10.0 ~ 19.9 %	20.0 ~ 29.9 %	0 (Normal)
20.0 ~ 24.9 %	30.0 ~ 34.9 %	+ (High)
25.0 ~ 50.0 %	35.0 ~ 50.0 %	++ (Very High)

Based on obesity values proposed by Lohman (1986) and Nagamine (1972).

Interpreting the BMI

BMI	Designation (WHO)
2.5 - 18.4	- (Underweight)
18.5 - 24.9	0 (Normal)
25 - 29.9	+ (Overweight)
30.0 - 90.0	++ (Obese)

Interpreting the Visceral Fat Level Result

Visceral Fat Level	Classification
1 - 9	0 (Normal)
10 - 14	+ (High)
15 - 30	++ (Very High)

According to OMRON HEALTHCARE figures

Interpreting the Skeletal Muscle Percentage Result

Gender	(Low)	0 (Normal)	+ (High)	++ (Very High)
Male	5.0-25.8	25.9-27.9	28.0-29.0	29.1-60.0
Female	5.0-32.8	32.9-35.7	35.8-37.3	37.4-60.0