Omron Healthcare HJA750C User Manual

Your OMRON HJA-750C Activity Monitor, excluding the battery, is warranted to 

be free from defects in materials and workmanship within 1 year from the date 

of purchase, when used in accordance with the instructions provided with the 

unit. The above warranties extend only to the original retail purchaser.

We will, at our option, repair or replace without charge any monitor covered by 

the above warranties. Repair or replacement is our only responsibility and your 

only remedy under the above warranties.

To obtain warranty service contact Omron’s Customer Support at 1-800-634-

4350. Information for warranty service is available on our website at 

www.omronhealthcare.com.

Enclose the Proof of Purchase. Include a letter, with your name, address, 

phone number, and description of the specific problem. Pack the product 

carefully to prevent damage in transit. Because of possible loss in transit, we 

recommend insuring the product with return receipt requested.

THE FOREGOING IS THE SOLE WARRANTY PROVIDED BY OMRON IN 

CONNECTION WITH THIS PRODUCT, AND OMRON HEREBY DISCLAIMS 

ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING IMPLIED 

WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 

PURPOSE. IMPLIED WARRANTIES AND OTHER TERMS THAT MAY BE 

IMPOSED BY LAW, IF ANY, ARE LIMITED IN DURATION TO THE PERIOD 

OF THE ABOVE EXPRESS WARRANTY.

OMRON SHALL NOT BE LIABLE FOR LOSS OF USE OR ANY OTHER 

SPECIAL, INCIDENTAL, CONSEQUENTIAL OR INDIRECT COSTS, 

EXPENSES OR DAMAGES.

This warranty provides you with specific legal rights, and you may have other 

rights that vary by jurisdiction. Because of special local requirements, some of 

the above limitations and exclusions may not apply to you.

FOR CUSTOMER SERVICE

Visit our web site at:   www.omronhealthcare.com

Call toll free:  

1-800-634-4350

•  In case this Product is used around the other wireless 

devices  including microwave and wireless LAN, which 

operate same frequency band of this Product, there is a 

possibility that interference occurs between this Product and 

such other devices. If such interference occurs, please stop 

the operation of other devices or relocate this Product before 

using this Product or do not use this Product around the 

other wireless devices.

•  Due to the use of radio waves, third parties may intercept 

transmissions either deliberately or accidentally. Do not use 

this Product for matters related to vital secrets or human 

lives.  

•  This Product is exclusively for Europe. Do not use this 

Product outside Europe. Doing so may conflict the radio law 

of the country.

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. 

Other trademarks and trade names are those of their 

respective owners.

OMRON HEALTHCARE, INC.

1925 West Field Court

Lake Forest, IL 60045 

U.S.A.

www.omronhealthcare.com

© 2014 OMRON HEALTHCARE, INC.
Made in Japan

Phenomenon

Cause

Rectification

Number of 

recordable days

45 days

mark blinks

On the 37th day and after

mark lights up

On the 46th day and after

1

2

Install the optional battery (CR2032 x 1) in the main unit 

before using it.

In areas where the use of wireless equipment is prohibited, turn off 

the Bluetooth

®

 communication function of the main unit.

1

2

3

Battery cover

Communication 

area mark

Strap 

attachment

Battery cover screw

Display select button

An operation error 

has occurred.

Error “Err” is 

displayed.

The       mark 

is blinking.

You can transfer the device settings and recorded data from this 

product to your personal computer by using the dedicated software.

* The optional “OMRON USB communication tray (HHX-IT4)” is 

required to transfer data.

When the       mark lights up or blinks, transfer the recorded data 

to the personal computer. When the recorded measurement data 

has been stored for over 36 days, the       mark blinks.

When it has been stored for over 45 days, the       mark lights up. 

For details, consult the administrator.

Battery power level 

is low.

Use a commercially available mini 

screwdriver to remove the battery 

cover screw.

Battery power is 

exhausted.

Recorded 

measurement values 

have not been 

transferred after a 

certain period.

          is 
blinking.

          is lit up.

The main unit has failed.

Contact your Omron’s 

Customer Support

(      See “11. LIMITED 

WARRANTY”)

If your problem is not solved by taking the above actions, 

contact your Omron’s Customer Support. 

(       See “11. LIMITED WARRANTY”)

NOTE: 
Note that all measurement values including the set values and 
the current data obtained on that day will be lost if a failure occurs 
or if your unit has to be repaired. 
We recommend that you transfer the measurement results as 
frequently as possible as a precautionary measure.

Promptly replace it with a 

new battery (CR2032).

(      “4. BATTERY 

INSTALLATION”)

These specifications are subject to change without notice.

OMRON Activity Monitor Active style Pro HJA-750C

3 VDC (Lithium battery CR2032 x 1)

Up to 45 days (only today’s data is displayed)

Approx.10 m

*2

Temperature: -10 °C to +40 °C

 

During data transfer: +5 °C to +35 °C

Humidity: 30 to 85% RH

Air pressure: 600 to 1050 hPa

Accessories

Weight

METs, Steps

Measurement 

function
Memory
Power voltage

Product name

*1. Construction type certification number is 007-AC0129.

*2. The communication distance varies depending on the distance between 

communication devices, obstacles, radio wave conditions, and the states 

of devices used. Communication may be interrupted depending on 

the radio wave conditions.

NFC-F (ISO/IEC 18092 compatible)

Bluetooth

®

 Version 4.0

*1

(Low Energy support)

Align the communication area mark on the activity monitor with 

the communication mark on the USB communication tray.

Connect the USB communication tray to the USB port of 

the personal computer, and place the main unit on the tray.

Follow the procedures provided by the dedicated software to 

transfer the device settings or recorded data.

52 (H) x 40 (W) x 12 (D) mm

Approx. 23 g (including battery)

3

Do not disconnect the cable while data is being transferred.

When the blinking “OFF” stops blinking 

and remains lit, communication is turned off.

Display 

select button

1

1

2

When the blinking “ON” stops blinking and 

remains lit, communication is turned on.

The    mark lights up and “ON” blinks.

2

Transfer the data to the 

personal computer

(     “6. CONFIGURING 

DEVICE/TRANSFERRING 

DATA”)

HJA-750C-E_A_M02_140723.pdf

Communication 

method

Bluetooth

®

 

communication 

distance

Operating 

environment

External 

dimensions

Approx. 2 months 

(When used for 14 hours a day)

New battery life based on OMRON testing.

Battery Life

Strap, Clip, Holder and Instruction manual

• Weight loss or exercise therapy based on self-judgment may harm 

your health.

• Should a young child swallow the battery, battery cover, or screw, 

immediately consult a doctor.

• Doing so may cause the battery to explode.

To assure the correct use of the product basic safety measures 

should always be followed including the warnings and cautions 

listed in this instruction manual.

• Doing so may cause an injury.

• Doing so may cause an injury or damage the main unit.

• Otherwise, a personal injury may occur.

• Otherwise, the battery may leak, generate excessive heat, or burst, 

resulting in damage to the main unit.

Indicates a potentially hazardous situation 

which, if not avoided, could result in death 

or serious injury.

Indicates a potentially hazardous situation 

which, if not avoided, may result in minor or 

moderate injury to the user or patient or 

damage to the equipment or other property.

 

 CAUTION

Insert the main unit into the holder and clip it to your waist.

Assembling the strap

Press to open.

(Push back to close)

●When the main unit is used during an exercise involving 

vertical movements or in an environment that 

experiences frequent vibrations.

● 

When you are going up or down stairs or steep slopes

● 

When you are riding a vehicle (bicycle, automobile, train, 
bus, etc.) that bounces or rolls

● 

When you are engaged in an upper body-focused workout

● 

When you are jogging, or walking extremely slowly 
(METs can be measured.)

●When the orientation of the main unit is not vertical in 

relation to the ground

The    mark lights up and “OFF” blinks.

The Bluetooth

®

 word mark and logos are registered trademarks owned by 

Bluetooth SIG, Inc.

FCC ID : Q6ZHJA750C

(FCC ID is listed in the battery holder.) 

FCC CAUTION

Changes or modifications not expressly approved by the party responsible for 

compliance could void the user’s authority to operate the equipment.

NOTE:

This device complies with part 15 of the FCC Rules. Operation is subject to the 

following two conditions: (1) This device may not cause harmful interference, 

and (2) this device must accept any interference received, including 

interference that may cause undesired operation.

This transmitter must not be co-located or operated in conjunction with any 

other antenna or transmitter.

This equipment complies with FCC radiation exposure limits set forth for an 

uncontrolled environment and meets the FCC radio frequency (RF) Exposure 

Guidelines. This equipment has very low levels of RF energy that are deemed 

to comply without testing of specific absorption ratio (SAR).

POTENTIAL FOR RADIO/TELEVISION INTERFERENCE

This product has been tested and found to comply with the limits for a Class B 

digital device, pursuant to part 15 of the FCC rules.

These limits are designed to provide reasonable protection against harmful 

interference in a residential installation. The product generates, uses, and can 

radiate radio frequency energy and, if not installed and used in accordance 

with the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular 

installation. If the product does cause harmful interference to radio or television 

reception, which can be determined by turning the product on and off, the user 

is encouraged to try to correct the interference by one or more of the following 

measures:

  •  Reorient or relocate the receiving antenna.

  •  Increase the separation between the product and the receiver.

  •  Connect the product into an outlet on a circuit different from that to which 

the receiver is connected.

  •  Consult the dealer or an experienced radio/TV technician for help.