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611 PLUS Blood Pressure Monitor 

Congratulations on purchasing a state-of-the-art A&D blood pressure monitor, one of 
the most advanced monitors available today. Designed for ease of use and accuracy, this 
device will facilitate your daily blood pressure regimen. We recommend that you read 
through this manual carefully before using the device for the first time.

PRELIMINARY REMARKS

☞ 

This device conforms to the European Directive 93/42 EEC for Medical Products. 
This is made evident by the  

 mark of conformity. (0123: The reference 

number to the involved notified body)

☞ 

The device is designed for use on adults only. Do not use on newborns or 

infants.

☞ 

This device is intended for home healthcare environment. 

☞ 

This device is designed to measure blood pressure and pulse rate of people for 

diagnosis. 

PRECAUTIONS

 

Precision components are used in the construction of this device. Extremes in 

temperature, humidity, direct sunlight, shock or dust should be avoided.

 

Clean the device and cuff with a dry, soft cloth or a cloth dampened with water and 

a neutral detergent. Never use alcohol, benzene, thinner or other harsh chemicals to 

clean the device or cuff.

 

Avoid tightly folding the cuff or storing the hose tightly twisted for long periods, as 

such treatment may shorten the life of the components.

 

The device and cuff are not water resistant. Prevent rain, sweat and water from 

soiling the device and cuff.

 

Measurements may be distorted if the device is used close to televisions, microwave 

ovens, cellular telephones, X-ray or other devices with strong electrical fields.

 

When reusing the device, confirm that the device is clean.

 

Used equipment, parts and batteries are not treated as ordinary household waste, 

and must be disposed of according to the applicable local regulations.

 

Do not modify the device. It may cause accidents or damage to the device.

 

To measure blood pressure, the arm must be squeezed by the cuff hard enough to 

temporarily stop blood flow through the artery. This may cause pain, numbness or a 

temporary red mark to the arm. This condition will appear especially when 

measurement is repeated successively. Any pain, numbness, or red marks will 

disappear with time.

 

People who have a severe circulatory deficit in the arm must consult a doctor before 

using the device, to avoid medical problems.

 

Do not self-diagnose the measurement results and start treatment by yourself. 

Always consult your doctor for evaluation of the results and treatment.

 

Do not apply cuff on an arm with other medical equipment attached. Neither 

equipment may function properly.

 

Do not apply the cuff on an arm with an unhealed wound.

 

Do not apply the cuff on an arm receiving an intravenous drip or blood transfusion. 

It may cause injury or accidents.

 

Do not use the device where flammable gases such as anesthetic gases are present. It 

may cause an explosion.

 

Do not use the device in highly concentrated oxygen environments, such as a high-

pressure oxygen chamber or an oxygen tent. It may cause a fire or explosion.

 

Do not excessively bend or squeeze the air hose. 

MONITOR COMPONENTS

DISPLAY

SYMBOL IDENTIFICATION

Symbols printed on the device case:

DISPLAY SYMBOLS

Symbols that appear on the display:

 

ABOUT  BLOOD PRESSURE

What Is Blood Pressure?
Blood pressure is the force exerted by blood against the walls of the arteries.
Systolic pressure occurs when the heart contracts. Diastolic pressure occurs
when the heart expands. Blood pressure is measured in millimeters of 
mercury(mmHg).

INSTALLING BATTERIES

1.  Remove the battery cover.
2.  Remove the used batteries from the battery 

compartment in case of changing them.

3.  Insert new batteries into the battery compartment 

as shown, taking care that  

the polarities (+) and (-) are correct.

4.  Replace the battery cover. 

Use only R6P, LR6 or AA batteries.

CAUTION

 

Insert the batteries as shown in the battery compartment. If installed incorrectly, the 
device will not work.

  When 

 (LOW BATTERY mark) blinks on the display and the device announces 

that the battery needs to be replaced, replace all batteries with new ones. Do not mix 
old and new batteries. It may shorten the battery life, or cause the device to 
malfunction.

 

Replace the batteries two seconds or more after the device turns off.

 

If  

 (LOW BATTERY mark) does not appear then the batteries are drained.

 

The battery life varies with the ambient temperature and may be shorter at low 
temperatures.

 

Remove the batteries if the device is not to be used for a long time. 
The batteries may leak and cause a malfunction.

 

Index 

 Point: Cuff fit range indicator (printed on the cuff)

CUFF SYMBOL IDENTIFICATION

Symbols printed on the cuff:

APPLYING THE ARM CUFF

1.  Wrap the cuff around the upper arm, about 1 to  

2 cm above the inside of the elbow, as shown. 

  Place the cuff directly against the skin, as clothing 

may cause a faint pulse and result in a 

measurement error.

2.  Constriction of the upper arm, caused by rolling 

up a shirtsleeve, may prevent accurate readings.

3.  Confirm that the index 

 points within the 

proper fit range.

HOW TO TAKE ACCURATE MEASUREMENTS

For the most accurate blood pressure measurement:

 

Sit comfortably on a chair. Rest your arm on the table. Do not cross your legs. Keep 

your feet on the floor and straighten your back.

 

Relax for several minutes before measurement.

 

Place the center of the cuff at the same level as your heart.

 

Remain still and keep quiet during measurement.

 

Do not measure immediately after physical exercise or a bath. Rest for twenty or 

thirty minutes before taking the measurement.

 

Try to measure your blood pressure at the same time every day.

DURING MEASUREMENT

During measurement, it is normal for the cuff to feel very tight. (Do not be alarmed).

AFTER MEASUREMENT

 

After measurement, press the  START  button to turn the device off. After one 

minute of non-operation, the device will turn off automatically. 

 

Remove the cuff and record your data.

 

TAKING A MEASUREMENT

Model UA-611 is designed to detect the pulse 
and to inflate the cuff to a systolic pressure level 
automatically.

If your systolic pressure is expected to exceed 230 
mmHg, read “Measurement With A Desired Systolic 
Pressure” below.

Normal Measurement

1.  Place the cuff on the arm (preferably the left arm). 

Sit quietly during measurement.

2.  Press the     button. All of the display segments 

are displayed. Zero is displayed blinking briefly.

  Then the display changes, as indicated in the 

figure at the right, as the measurement begins. The 

cuff starts to inflate. It is normal for the cuff to feel 

very tight. A pressure bar indicator is displayed, as 

in the figure at the right, during inflation.

 

Note:  If you wish to stop inflation at any time, press the

   

button again.

3.  When inflation is complete, deflation starts 

automatically and the 

  (heart mark) blinks, 

indicating that the measurement is in progress. 

Once the pulse is detected, the mark blinks with 

each pulse beat.

 

Note:  If an appropriate pressure is not obtained, the device 
starts to inflate again automatically.

4.  When the measurement is complete, the systolic 

and diastolic pressure readings and pulse rate are 

displayed. The cuff exhausts the remaining air and 

deflates completely.

5.  Press the   button again to turn off the power.

 

Note:  Model UA-611 is provided with an automatic power 

shut-off function.  

M

Measurement with a Desired Systolic Pressure

If your systolic pressure is expected to exceed 230 

mmHg, use this procedure.

1.  Place the cuff on the arm (preferably the left 

arm).

2.  Press the   button.

3.  During the zero blinks, press and hold the   

button until a number about 30 to 40 mmHg 
higher than your expected systolic pressure 
appears.

4.  When the desired number is reached, release 

the   button to start measurement. Then 
continue to measure your blood pressure as 
described in the previous section.

TIPS FOR TAKING READINGS

 

Sit down in a comfortable position. Place the arm to be used for the measurement on 

a table or other support so that the center of the cuff will be at the same height as 

your heart.

 

Relax before taking a measurement. If you are excited or depressed by emotional 

stress, the measurement will reflect this stress as a higher (or lower) than normal 

blood pressure reading and the pulse reading will usually be faster than normal.

 

An individual’s blood pressure varies constantly, depending on what you are doing 

and what you have eaten. What you drink can have a very strong and rapid effect on 

your blood pressure.

 

This device bases its measurements on the heartbeat. If you have a very weak or 

irregular heartbeat, the device may have difficulty determining your blood pressure.

 

Should the device detect a condition that is abnormal, it will stop the measurement 

and display an error symbol. Refer to the section titled Display Symbols for the 

description of the symbols.

 

This device is intended for use by adults only. Consult with your physician before 

using this device on a child. A child should not use this device unattended.

RECALLING THE MEMORY

The device automatically stores up to fifteen blood pressure and pulse measurements in 

memory. Data stored in memory are assigned a data number in the order of the newest 
to the oldest. The oldest data displays as “

 “. The M symbol in the upper left 

corner of the display indicates that you are viewing previous data stored in memory.

1.  When nothing is displayed, press and hold 

the   button to recall the stored data.

2.  Release the button when displaying the 

average data.

3.  The data number and stored data are 

automatically displayed in order from the last 

measurement.

4.  The display will turn off automatically after 

all data is displayed.

 

Note:  If you press the     button while recalling 
data, the device turns off.

DELETING THE MEMORY

1.  When turning off the device, press and hold 

the   button until the  
“ 

“ is displayed. 

2.  Select “

“ to clear data. 

3.  Data is cleared when the 

 mark blinks. 

4.  The device turns off automatically.

TROUBLESHOOTING

Note:  If the actions described above do not solve the problem, contact the dealer. Do not attempt to open 

or repair this product, as any attempt to do so will make your warranty invalid.

M

AC Adapter port 

UA-651

JNC7

JNC7

MAINTENANCE

Do not open the device. It uses delicate electrical components and an intricate air 
unit that could be damaged. If you cannot fix the problem using the troubleshooting 
instructions, contact the authorized dealer in your area or our customer service 
department. A&D customer service will provide technical information, spare parts and 
units to authorized dealers. It is generally recommended to have the monitor inspected 
every 2 years to ensure proper functioning and accuracy.

SPECIFICATIONS

MODEL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .UA-611

MEASUREMENT METHOD  . . . . . . . . . . . . . .Oscillometric measurement

MEASUREMENT RANGE  . . . . . . . . . . . . . . . .Pressure: 0 - 299 mmHg
  

Systolic pressure: 60 - 279 mmHg 

 

Diastolic pressure: 40 - 200 mmHg 

 

Pulse: 40 - 180 beats / minute

MEASUREMENT ACCURACY . . . . . . . . . .Pressure: ±3 mmHg
  

Pulse: ±5 %

POWER SUPPLY  . . . . . . . . . . . . . . . . . . . . . . . .4 x 1.5V batteries (R6P, LR6 or AA) 

NUMBER OF MEASUREMENTS  . . . . . . . . . .Approx. 700 times  LR6 (alkaline batteries)
  

Approx. 200 times  R6P (manganese batteries) 

 

With pressure value 180 mmHg, room 

 

temperature 23 °C

CLASSIFICATION  . . . . . . . . . . . . . . . . . . . . . . .Internally powered ME equipment (Supplied 
 

by batteries). Continuous operation mode. 

CLINICAL TEST   . . . . . . . . . . . . . . . . . . . . . . . .According to ANSI / AAMI SP-10 1992

EMC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IEC 60601-1-2: 2007

MEMORY   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Last 15 measurements

OPERATING CONDITIONS  . . . . . . . . . . . . . .50 °F to 104 °F / 15 %RH to 85 %RH 
 

+10 °C to +40 °C / 15 %RH to 85 %RH

 

800 to 1060hPa

TRANSPORT/STORAGE CONDITIONS  . . .-4 °F to 140 °F  / 10 %RH to 95 %RH
 

-20 °C to +60 °C / 10 %RH to 95 %RH

DIMENSIONS. . . . . . . . . . . . . . . . . . . . . . . . . . .Approx. 3.8" (W) x 2.7” (H) x 5.1” (D)
 

Approx. 96 (W) x 68 (H) x 130 (D) mm

WEIGHT  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Approx. 8.1 oz., excluding the batteries 
 

Approx. 230 g, excluding the batteries

INGRESS PROTECTION   . . . . . . . . . . . . . . . . .Device: IP21

APPLIED PART  . . . . . . . . . . . . . . . . . . . . . . . . .Cuff Type BF  

 

USEFUL LIFE  . . . . . . . . . . . . . . . . . . . . . . . . . . .Device:  5 years (when used six times a day)
 

Cuff: 2 years (when used six times a day) 

Note:  Specifications are subject to change without prior notice. 

EMC table information is listed on our website: 
http://www.aandd.jp/products/manual/medical/emc_en.pdf

Accessories sold separately 

Part Number

Cuff Size

Arm Size

UA-420

AccuFit

TM

 Plus Cuff

8.6"-16.5" (22-42cm)

UA-290

Medium Cuff

9.0"-14.6" (23-37cm)

UA-291

Large Cuff

12.2"-17.7" (31-45cm)

Arm size: The circumference at the biceps.

 

WARRANTY

This blood pressure monitor and cuff carries different warranties in different countries 
of purchase. Please see below for warranty length and contact information where you 
purchased this product.

CONTACT INFORMATION 

Distributed by: 

A&D Engineering, Inc. 

1756 Automation Parkway 

San Jose, CA 95131 

1-888-726-9966 

www.andmedical.com 
©2014 A&D Medical. All rights reserved. Specifications subject to change without notice. 

I-MAN-UA-611-072016  

Printed in China

In the United States of America:

5 year warranty

A&D Engineering, Inc.

1756 Automation Parkway

San Jose, CA 95131 U.S.A.

www.andmedical.com

1-888-726-9966

In Canada:

5 year warranty

Distributed in Canada by: 

Auto Control Medical, Inc.

6695 Millcreek Drive, Unit 6

Mississauga, Ontario, L5N 5R8 Canada

www.lifesourcecanada.com

1-800-461-0991

In Latin America:

No warranty

Manufactured for:

A&D Medical

A division of A&D Engineering, Inc.

1756 Automation Parkway

San Jose, CA 95131

Toll-Free: 1-888-726-9966

www.andmedical.com

In Europe:

Various warranties - see packaging

All other countries:

Various warranties - see packaging

  A&D Instruments LTD.

Unit 24/26 Blacklands Way,  

Abingdon Business Park

Abingdon, Oxfordshire  OX14 1DY 

United Kingdom

www.aandd-eu.net

[44] (1235) 550420 

 A&D Company, Limited

1-243 Asahi, Kitamoto-shi,

Saitama, 364-8585 Japan

www.aandd.jp

[81] (48) 593-1119

Instruction Manual

ORIGINAL

1WMPD4002687B

UA-611

Symbols

Function/Meaning

Recommended Action

l

Artery position mark

Set the 

l

 mark on the artery of the upper arm 

or in line with the ring finger on the inside of 

the arm.

p

Index

––––––––––––

REF

Catalog number

––––––––––––

M

Proper fit range for the medium cuff. It's 

printed on the cuff.

––––––––––––

L

Over range printed on the medium cuff and 

AccuFit Plus cuff.

Use the large cuff instead of the medium cuff or 

the AccuFit™ Plus cuff.

W

Proper fit range for the AccuFit™ Plus cuff. 

It's printed on AccuFit™ Plus cuff.

––––––––––––

L

Proper fit range for the large cuff. It's 

printed on the large cuff and AccuFit™ 

Plus cuff.

––––––––––––

S

Under range printed on the medium cuff and 

AccuFit™ Plus cuff.

––––––––––––

M

Under range printed on the large cuff. 

Use the medium cuff instead of the large cuff.

LOT

Lot number

––––––––––––

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