BE RX800 User manual

AUTOMATIC
Blood Pressure Monitor
instruction
Manual Recommended by
Hypertension Canada
Recommandé par
Hypertension Canada

Parts and Components
7. D-ring
8. AC/DC Power Adapter
9. Button ‘M’ Memory
10. Button ‘O/I’ ON/OFF
11. Batteries (optional)
1. Main Body
2. Display
3. Cuff Connection
4. Tube Plug
5. Air Hose
6. Cuff
SYS.mmHg
DIA.mmHg
M
O/I
1
9
2
3
456 7
8
10
11

Compact Blood Pressure Monitor Instruction Manual
Table of Contents
1. General
Principle of Operation
2. Tips On Taking Blood Pressure Measurement
2.1 About Blood Pressure
2.2 Normal Blood Pressure Values
2.3 Obtaining Accurate Measurements
2.4 Before Measuring
2.5 Common Sources of Error
2.6 Fitting the Cuff
2.7 Storing the Cuff
3. Battery Installation
4. Using the Device With AC/DC Power Adapter
5. About the LCD Screen
6. Setting the Date and Time
7. Measuring your Blood Pressure
7.1 Automatic Inflation
7.2 Rapid Deflation During Measurement
8. Function of Memory
8.1 Memory Recall
8.2 Memory Clearance
9. Error and Low Battery Information
10. Care, Storing, Repair and Recycling
11. Troubleshooting
12. Lifetime Guarantee
13. Technical Specifications
RX800

1. General
This instruction manual is intended to assist the user in the safe and efficient
operation of the Be Better™ Automatic Blood Pressure Monitor model RX800.
The device should be used in accordance with the procedures described in this
manual. It is important to read and understand the entire manual, especially
section 2 “Tips on Taking Blood Pressure Measurement.”
This device is intended for the non-invasive measurement of systolic and
diastolic arterial blood pressure and pulse rate in adults age 15 and above.
Principle Of Operation
This device uses oscillometric technology to measure the arterial blood
pressure and pulse rate. The cuff is wrapped around the arm and automatically
inflated by the air pump. The sensor in the device senses weak fluctuation of
the pressure in the cuff produced by extension and contraction of the artery of
the arm in response to each heartbeat. The amplitude of the pressure waves is
measured, converted in millimeters of the mercury column, and is displayed on
the display.
This device cannot provide reasonable accuracy if used or stored in
the temperature or humidity beyond the range stated in the section
“TECHNICAL SPECIFICATIONS” of this manual.
2. Tips On Taking Blood Pressure Measurement
2.1 About Blood Pressure
Blood pressure level is determined in the circulatory center of your brain. Your
nervous system allows the body to adapt or alter blood pressure in response to
different situations. Your body alters your pulse or heart rate and the width of
blood vessels through changes in muscles in the walls of blood vessels.
Your blood pressure reading is highest when your heart pumps or ejects blood.
This stage is called your systolic blood pressure.

Your blood pressure is lowest when the heart rests (in-between beats). This is
called your diastolic blood pressure.
It is critical to maintain blood pressure values within a “normal” range in
order to prevent cardiovascular diseases. Increased blood pressure values
(various forms of hypertension) have associated long and medium term health
risks. These risks concern the arterial blood vessels of your body, which
are endangered due to constriction caused by deposits in the vessel walls
(arteriosclerosis). An insufficient supply of blood to important organs (heart,
brain, muscles) can be the result. Furthermore, with long-term increased blood
pressure values, the heart will become structurally damaged.
There are many different causes of the appearance of high blood pressure.
We differentiate between common primary (essential) hypertension, and
secondary hypertension. The latter group can be ascribed to specific organic
malfunctions. Please consult your doctor for information about the possible
origins of your own increased blood pressure values.
2.2 Normal Blood Pressure Values
Blood pressure is generally considered too high when, at rest, the diastolic
pressure is above 90 mmHg or the systolic blood pressure is over 140 mmHg.
If you obtain readings in this range, consult your doctor immediately. High
blood pressure values over time can damage blood vessels, vital organs such
as the kidney, and your heart.
Should the systolic blood pressure values lie between 140 mmHg and 160
mmHg or the diastolic blood pressure values lie between 90 mmHg and 95
mmHg, consult your doctor. Regular self-checks will be necessary.
With blood pressure values that are too low (i.e., systolic values under 105
mmHg or diastolic values under 60 mmHg), consult with your doctor.
Even with normal blood pressure values, a regular self-check with your blood
pressure monitor is recommended. In this way you can detect possible changes
in your values early and react appropriately.

Refer to the following table for classifying blood pressure values (units: mmHg)
according to the World Health Organization (WHO):
Category Systolic Blood Pressure Diastolic Blood Pressure
Optimal < 120 < 80
Normal < 130 < 85
High Normal 130 - 139 85 - 89
Hypertension
• Stage 1: Mild
• Stage 2: Moderate
• Stage 3: Severe
140 - 159
160 - 179
≥180
90 - 99
100 - 109
≥110
Isolated Systolic Hypertension > 140 < 90
2.3 Obtaining Accurate Measurements
Your blood pressure can vary based on numerous factors, physiological
conditions, and your surroundings. Follow these guidelines to obtain accurate
and error-free measurements of your blood pressure and pulse rate.
2.4 Before Measuring
• Avoid eating, smoking as well as all forms of exertion directly before the
measurement. All these factors influence the measurement result. Relax by
sitting in an armchair in a quiet atmosphere for about 5 minutes before the
measurement.
• Always take measurements on the same arm (normally left) and in the
same posture. Do not switch between right and left arms while recording
your blood pressure as there may be a difference of up to 10 mmHg
pressure between the two arms.
• Attempt to carry out the measurements regularly at the same time of day,
since blood pressure changes during the course of the day. The ideal time
to measure your blood pressure is in the morning after you wake up, before
breakfast and physical activity, and in the absence of the urge to urinate.
• Rest for 5 minutes sitting quietly and release all the tension in your body
— especially the arm muscles — before beginning with the measurement.
Remain calm and quiet when the measurement is in process. Do not speak
or move your arm (as well as other body) muscles during the process.

2.5 Common Sources of Error
Any efforts by the patient to support the arm can increase the blood pressure.
Make sure you are in a comfortable, relaxed position and do not activate any of
the muscles in the measurement arm during the measurement. Use a cushion
for support if necessary and rest your arm completely.
ATTENTION!
Comparable blood pressure measurements always require the same
conditions with a peaceful and calm environment. Ensure that you
take measurements under the same conditions to obtain an accurate
estimate of blood pressure variation patterns.
• The cuff should be at heart level.
• If the arm artery lies considerably lower or higher than the heart, an
erroneous value of blood pressure is measured. Each 15 cm difference in
height results in a measurement error of 10 mmHg.
• A loose cuff causes false measurement values.
• With repeated measurements, blood accumulates in the arm, which can
lead to false results. Consecutive blood pressure measurements should be
repeated after at least a 15 second pause or after the arm has been held
up in order to allow the accumulated blood to flow away.
2.6 Fitting the Cuff
a) Put the end of the cuff (with fastener) through
the metal ring, making the cuff a cylinder.
(Ignore this step if your cuff is already set up.)
Proper assembly allows the Velcro®to match up
properly.
b) Place the cuff around your arm. Make sure the
bottom edge of the cuff is about 1” above the
elbow joint. Adjust the cuff so that the rubber
tubing under the cuff lies over the brachial
artery, which runs on the inside of the arm (see
Fig. B).
a)
b)

c) Pull the cuff and tighten it by attaching the
Velcro®fastener. Normally, the left arm is used,
unless there is a physical reason for using the
right arm.
d) The cuff should fit snugly around the arm, but not
too tight. You should be able to fit two fingers
under the cuff.
e) Place the arm on the table (palm facing
upwards) so that the cuff is at the same level
as the heart. Make sure there is no kink in the
hose.
f) You can adjust the level of your arm by putting
a cushion under your arm.
g) Remain seated in a comfortable room
temperature for at least 5 minutes, then
start the measurement.
c)
d)
e)
f)
g)

h) For those who cannot put the cuff on the left
arm, put it on the right arm as shown.
i) Consecutive measurements will cause blood
accumulation in the lower arm which will
affect the measuring results. To improve
reading accuracy, raise the arm being
measured, squeeze and relax your hand
several times, then take another measurement.
Another option is to take the cuff off and
wait at least 10 minutes before repeating
measurement.
j) If this device was stored in low temperature, it is
necessary to leave it in room temperature for at
least 1 hour, otherwise the measurement can be
inaccurate.
ATTENTION: Do not use cuff other than the original cuff contained in this kit!
2.7 Storing the Cuff
The cuff used for measuring blood pressure is a
delicate component of the device and should be
stored carefully when not in use.
h)
i)

3. Battery Installation (Optional)
1. Open the battery cover and install four ‘AA’ type batteries into the battery
compartment as indicated. Make sure that the polarity is correct.
2. Close the battery compartment cover.
• Replace the batteries when the replacement indication “ ” appears in the
display or nothing after O/I button is pressed.
• Use AA alkaline batteries, do not use rechargeable batteries.
• Use only the same type of batteries together. Replace all batteries
simultaneously; if the device isn’t being used for a long time, please take out
the batteries.
• Do not leave the worn batteries in the device.
4. Using the Device With AC/DC Adapter
Besides batteries you can use the AC/DC adapter as the power supply.
• Insert the AC/DC adapter cord into the jack on the right side
of the monitor.
• Insert the AC/DC adapter plug into the outlet.
• To remove the AC/DC adapter, disconnect the adapter plug
from the outlet first and then disconnect the cord from the monitor’s jack.
Caution
• To avoid possible damage to the monitor, use only the AC/DC adapter included.
Other adapters may damage the blood pressure monitor.

Note: The monitor is designed not to draw power from the batteries
when the AC/DC adapter is in use.
AC/DC adapter technical feature:
Output voltage: 6V±5%
Max. output current: At least 600 mA
Output plug polarity: <-> inner
5. About the LCD Screen
The LCD screen describes the systolic and diastolic blood pressure measurements
along with your heart rate.
In Standby Mode:
6. Setting the Date and Time
The function provides accurate measuring time for each measurement. To get
accurate date and time, the user should preset the date and time correctly before
the first use of this device. The operation procedure for presetting Date/Time is
as follows:
Systolic Blood Pressure
(mmHg)
Diastolic Blood Pressure
(mmHg)
Pulse Rate
(beats/minute)
Time and Date
(alternates on screen)
Average
M
Memory
Time
(24 hour mode)
Date
M D

1. When the device is powered on for the first time,
the display will show as Fig. 1.
2. Press and hold button ‘M’, then press button ‘O/I’, and the year number flashes.
3. Press button ‘M’ to change the year number and press button ‘O/I’ for
confirmation.
4. When the year setup is finished, the month number will flash automatically.
Follow the same instruction as above to set month, date and time.
5. Press button ‘O/I’ to finish setup. If you want to change the date and time,
please repeat steps 2, 3, 4.
Note: When in the Date/Time setting, if no button is pressed in 1 minute, the
device will automatically return to standby mode.
7. Measuring Your Blood Pressure
1. Insert the tube plug into the cuff connection. Before the measurement, take 5
minutes to relax yourself. Don’t talk or move your arm.
2. Press button ‘O/I’, and all symbols will appear on display for 2 seconds as Fig. 2.
Then two short beeps will sound and ‘0’ will appear on the screen. Pump begins
to inflate with display showing the reading of pressure. Generally the pressure
will reach 190 mmHg as Fig. 3.
3. The pump will stop inflating and pressure begins to decrease gradually, during
which the user’s blood pressure and pulse will be calculated as Fig. 4.

Fig. 1



Fig. 2 Fig. 3 Fig. 4

4. There will be a long beep following the accomplishment of measurement. The
air in the cuff will deflate quickly and the blood pressure reading and pulse
reading will show in the display. The measuring time and date will also display,
alternating on the screen.
5. Press the button ‘O/I’ to return to the standby mode. Please rest for at least 3
minutes for another measurement. If the device isn’t used for 3 minutes, the
device will return to standby mode automatically.
7.1 Automatic Inflation
There are 4 levels of given inflation pressure for this device: 190mmHg, 230mmHg,
270mmHg and 300mmHg. When 190mmHg is not enough or movement of arm
occurs, the device will automatically inflate to reasonable pressure level to
ensure a successful measurement. It is not a fault.
7.2 Rapid Deflation During Measurement
If you do not feel well during measurement or want to stop the measurement for
some reason, you can press the O/I button. The device will quickly release the
air in cuff and the device will be returned to standby mode.
Repeated measurements with intervals of 3 minutes are recommended, so you
can calculate the average to get more accurate measurement. Atherosclerosis
patients are required longer intervals (10-15 minutes) as elasticity of patients’
vessels decreased significantly in these diseases. 10-15 minute intervals is also
applicable for patients suffering from diabetes for a long time.
8. Function of Memory
8.1 Memory Recall
1. RX800 can store 90 sets of readings, and will automatically calculate the average
value of the latest 3 readings. When the memory is full (90 sets of readings are
stored), the oldest reading will be replaced by the new one. Memory will not
clear away even if power supply is removed.

2. After a measurement is finished or when the device is in standby mode, the user
can press button ‘M’ to recall memory. Press button ‘M’, the display will show
the average value of the last 3 readings taken as Fig. 5.
3. Press again, the display will show ‘01’, which means the last reading taken,
then turns to another screen to show readings and measuring date and time as
Fig. 6.
4. Press again, the display will show ‘02’, which means the second to the last
reading taken.
8.2 Memory Clearance
After a measurement is finished or when the device is in standby mode, press and
hold button ‘M’ for at least 5 seconds, the display will show ‘Clr’ which means the
stored readings for ‘M’ are removed. Fig. 7.
Fig. 5 Fig. 6



Fig. 7

9. Error and Low Battery Information
INDICATION POSSIBLE REASON CORRECT METHOD
The cuff is put on
improperly or the tube plug
is inserted too loosely.
Movement of arm/hand
or talking during
measurement.
The cuff has not inflated to
necessary pressure.
Make sure that the cuff
is put on correctly and
the tube plug is inserted
tightly and repeat the
measurement.
Repeat the measurement
with no movement and
follow recommendations
of manual.
Repeat the measurement
by pumping cuff to a
higher pressure.
The batteries are weak. Replace all 4 batteries
with new ones.



10. Care, Storing, Repair and Recycling
1. It is necessary to protect this device against high moisture, direct sunlight,
shock, solvent, alcohol and gasoline.
2. Remove the batteries if the device is to be stored for a long time, and keep the
batteries away from children.
3. Keep the cuff from sharp objects and do not extend or twist the cuff.
4. Use only soft and dry cloths to clean the device.
WARNING: Under no circumstances may you wash the inner bladder!
5. Since neither the device nor batteries are household waste, follow your local
recycling rules and dispose of them at appropriate collection sites.
6. Do not open the device. It has delicate electrical components and an intricate
air unit that could be damaged. If you cannot fix the problem using the
troubleshooting instruction, request service from your dealer.
7. It is generally recommended to have the monitor inspected every 2 years, to
ensure proper functioning, accuracy and safety. Please contact your dealer for
maintenance.
WARNING: Do not modify the equipment without authorization of the
manufacturer.

11. Troubleshooting
SYMPTOM CHECK POINT REMEDY
No display when the
device is turned on.
The batteries have run
down.
The polarity of battery is
wrong.
Proper battery contact is
not being made.
Replace all batteries
with new ones.
Install batteries
correctly.
Clean the battery
terminals with dry cloth.
Inflation stops and
re-inflates later.
The automatic inflation
for ensuring correct
measurement.
Did you talk or move
your arm (or hand) during
measurement?
See “Automatic
Inflation”
Do not move and
keep silent during the
measurement.
The reading is
extremely high or
low.
Is the cuff at the same
level as the heart?
Is the cuff wrapped right?
Did you strain your arm
during measurement?
Did you talk or move
your arm during
measurement?
Make sure that your
posture is right.
Wrap the cuff correctly.
Relax during
measurement.
Do not move and keep
silent during the
measurement.

12. Lifetime Guarantee
Be Better™blood pressure monitors have a lifetime warranty to be free of
manufacturing defects for the life of the original owner. This warranty does not
include the inflation system including the cuff and inflation bladder. The cuff is
warranted for two years. The warranty does not cover damage from misuse or
tampering.
If you have questions regarding the operation of your monitor call the
Blood Pressure Hotline: [phone]
Should repair be necessary, return the unit with all component pieces. Enclose
proof of purchase and $5.00 for return shipping and insurance. Ship the unit
prepaid and insured (at owners option) to:
Thermor Ltd.
Repair Department
16975 Leslie Street
Newmarket, ON L3Y 9A1
[e-mail]
Please include your name, return address, phone number, and email address.
Thermor will repair or replace (at Thermor’s option) free of charge any parts
necessary to correct the defect in material or workmanship.
Please allow 10 days for repair and return shipping.
Pulse rate is too low
or too high.
Did you talk or move
your arm during
measurement?
Did you take
measurement right after
exercise?
Do not move and keep
silent during the
measurement.
Take measurement again
after resting for more
than 5 minutes.
The batteries run
down soon.
Faulty batteries are used. Use alkaline batteries of
known manufacturers.

13. Technical Specifications
Model: RX800
Size: 130(L) x 67(W) x 52(H)mm
Weight: Approximately 300g without batteries
Measuring method: Oscillometry
Measuring range: 40 to 260 mmHg (blood pressure)
40 to 160 beats/minute (pulse rate)
Measuring accuracy: ±3 mmHg for static pressure
5% of the reading for the pulse rate
Inflation: Automatic by the pump
Rapid deflation: Automatic electronic valve
Batteries: 4 x “AA”, 1.5V
Adaptor: 6V, 600mA
Memory : 90 sets of memories
Operation
temperature and
humidity:
+10°C to +40°C (50°F to 104°F), 85% and below
Storage temperature
and humidity:
-20°C to +50°C (-40°F to 122°F), 85% and below
Upper arm
circumference:
Applicable for arm circumference
22-36 cm / 9 - 14.25 in
(standard cuff);
32-43 cm / 12.5 - 16.9 in (large adult cuff)
Complete Kit: Main body, standard cuff, large adult cuff
(optional), 4 x AA batteries (optional), adapter,
instruction manual
TH3372_RX800_113012