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Digital Blood Pressure Monitor
for the Upper Arm
INSTRUCTION MANUAL
GT-6630
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Contents
Information You Should Know
Before Operating the Unit ............................ 25
About the Unit ................................................ 28
Function Descriptions ................................... 28
Explanation of Display Symbols ................... 29
Preparation for Use ....................................... 30
Installing/Replacing Batteries ...................... 30
Attaching the Pressure Cuff ......................... 31
Measuring Posture ...................................... 32
Operations ...................................................... 33
Setting the Clock and Date .......................... 33
Measuring Blood Pressure ........................... 33
Recalling Memory Values ............................. 35
Erasing Memory Values ............................... 35
Data Transfer and Analysis
via desktop 2.0 Software .............................. 36
Care and Maintenance ................................... 37
Error Messages .............................................. 39
Specifi cations ................................................. 40
Disposal .......................................................... 41
Guarantee of Quality ...................................... 41
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Information You Should Know Before
Operating the Unit
Caution
1. Consult your physician to verify your blood pressure range before measuring it at home with this
unit.
2. If the cuff causes any discomfort during
measurement, press the START button to turn
off the unit immediately.
3. If the pressure is over 300mmHg and the cuff
does not defl ate automatically, pull off the Vel-
cro strap to detach the arm cuff.
Blood pressure measurements obtained with this
unit are equivalent to those obtained by a trained
person using the cuff/stethoscope auscultation
method.
WARRANTY:
Three years from the date of purchase.
What is blood pressure?
A force is created by the heart as the ventricle
forcibly ejects blood into the blood vessels and
through the vascular system. Another force is created by the arteries as they resist the blood fl ow.
Blood pressure is the result of these two forces.
What are systolic and diastolic blood
pressures?
Systolic blood pressure is the highest pressure at
the heart‘s maximum contraction. Diastolic blood
pressure is the lowest pressure when the heart is
resting.
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Comparison to WHO recommendations
See the following blood pressure classifi cation
chart released by the WHO (World Health Organization) for evaluation of your blood pressure level.
Information You Should Know Before
Operating the Unit
Blood
pressure
classifi ca-
tion
Systolic
BP mmHG
Diastolic
BP mmHg
Color
indicator
Optimal < 120 < 80 6x Green
Normal 120 – 129 80 – 84 3x Green
High
– Normal
130 – 139 85 – 89 6x Yellow
Stage 1
Hypertension
140 – 159 90 – 99 2x Red
Stage 2
Hypertension
160 – 179 100 – 109 4x Red
Stage 3
Hypertension
>= 180 >= 110 6x Red
Severe hypertension (Grade 3)
Moderate Hypertension (Grade 2)
Mild Hypertension (Grade 1)
Optimal
Normal
Boarderline
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Information You Should Know Before
Operating the Unit
What about low blood pressure?
In general, a lower blood pressure reading is
better unless it causes unpleasant symptoms such
as fainting and/or lightheadedness.
Fluctuation and variation in blood pressure
The following chart shows possible blood pressure
fl uctuations during a 24-hour period.
The following factors will infl uence blood pressure
measurement results and cause variations.
• Bathing
• Conversation
• Drinking alcohol
• Exercise
• Moving
• Mental tension
• Eating
• Temperature changes
• Thinking
• Smoking etc.
• Breathing
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About the Unit
The cuff is designed to fi t arm sizes between
22 and 32cm (8.7 to 12.6 inches).
Cuff
POWER Button
LCD-Display
MEMORY Button
Tubing
MEMORY GROUP
BUTTON
Mode Selection
Switch
USB connector
The Geratherm desktop 2.0 has a combination of
2 measuring methods in one measuring procedure
– the so-called „Double Check Technology“ (DCT).
This intelligent measuring method measures the
blood pressure values during infl ation and defl a-
tion and guarantees excellent measuring results
and highest accuracy.
Function Descriptions
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About the Unit
Date
Systolic
Pulse
Indicator
Diastolic
Low Battery
Indicator
Memory
For rapid measuring results you can switch to the
established „fuzzy logic“ mode (measurement during release of pressure only).
The blood pressure monitor provides a USB connector plus analysis software, enabling easy transfer to the computer and evaluation of the blood
pressure values.
Furthermore Geratherm desktop 2.0 has arrhythmia detection (pulse arrhythmia detection), 50
memory locations for 2 persons, WHO classifi ca-
tion (classifi cation of blood pressure values as per
World Health Organisation standards) and backlight of display.
Explanation of Display Symbols
Clock
IPD (irregular
pulse detection)
WHO
classifi cation
indicator
Puls Rate
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Installing/Replacing Batteries
1. Insert the batteries into the battery compartment
matching correct polarities “+” and “-”.
2. Replace all batteries if the low battery indicator
appears.
3. Remove the batteries if the unit will not be used
for a long period of time.
Note:
It is recommended that the same type of alkaline
batteries be used to avoid incompatibility.
Please dispose of defective appliances and used
batteries in compliance with statutory regulations
(disposal in general household waste is prohibited!).
Preparation for Use
4 type „AA“
batteries
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Preparation for Use
Attaching the Pressure Cuff
1. Wrap the cuff around the left arm. The arm
should be bare.
2. Fasten the cuff. Don’t pull it too strongly or
make the cuff too tight. The edge of the cuff
should be approximately 1 inch from the crease
of your elbow.
3. Attach the cuff on the right arm as shown in the
fi gure if it is not possible to measure on the left
arm.
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Measuring Posture
1. Sit upright and ensure that the cuff is at heart
level. Relax and retain a natural posture during
measurement.
2. Measure and
record blood
pressure at the
same time every
day to establish
your blood pressure pattern.
AC Adapter
It is possible to use a stabilized AC adapter (output
6 V DC/800 mA) to operate the device.
Note:
1. No power is taken from the batteries while the
AC adapter is connected to the device.
2. If AC adapter power is interrupted during measurement, the device must be reset by disconnecting the AC adapter from the device.
3. Please use only the power adapter supplied by
Geratherm. Using commercially available pow-
er adapters may damage your blood pressure
gauge.
Power source
4 alkaline “AA” type batteries (1.5 V) or
stabilized AC/DC adapter
6 V DC 800 mA
Preparation for Use
AC-Adapter
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Operations
Setting the Clock and Date
With the unit switched off, press the MEMORY button until the display shows a blinking year.
Press the START button to adjust the year while
it is blinking.
Then press the MEMORY button again; the month
will appear and blink. Adjust the month using the
START button.
Repeat these operations for entering date, hour
and minute.
Measuring Blood Pressure
You may choose between 2 measuring modes:
fuzzy logic (measurement during defl ation) and
Double Check Technology (measurement during
infl ation and defl ation). Select prefered measuring
mode using the buttons on the side of the unit.
Press the MEMORY GROUP button to choose
the desired memory group where you would like
to store the measuring values (the default setting
is memory group number 1).
fuzzy logic Double Check Technology
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You may also select or change the memory group
by pressing the button after measurement (values
are shown on the display).
Press START to start measuring.
When the measurement is completed, the display
will show the measured blood pressure values,
pulse rate, memory group, date/time and WHO
color classifi cation.
Press START to turn off the unit. Otherwise it will
turn off automaitcally after about 150 seconds.
As regards the WHO classifi cation, please read on
page 26.
Note:
If the symbol “ ” appears, it means the unit
has detected irregular pulse during measurement.
If the symbol appears regularly please consult a
qualifi ed physician for professional advice.
Operations
Initial display Pumping
Measurement Displaying the result
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Operations
Recalling Memory Values
Press the MEMORY GROUP button to choose the
desired memory group.
Press MEMORY to recall the last stored measurement value.
Press MEMORY again to go to previous memory
values.
Erasing Memory Values
You may erase one or all memory values.
Erasing one memory value
1. Press the MEMORY GROUP button to choose
the desired memory group.
2. Press and release MEMORY to display the
memory values. Press and release MEMORY
again to choose the memory value that you
wish to erase.
3. Press and hold the START button until the display shows “dEL”.
4. Press and release the START button again.
The unit erases the memory value after the
third beep.
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Erasing all memory values
1. Press the MEMORY GROUP button to choose
the desired memory group.
2. Press and release MEMORY to display the memory values.
3. Press and hold the START button until the display shows “dEL”.
4. Press MEMORY and display shows “dEL ALL”.
5. Press and hold START. The unit erases all memory values after the third beep.
Data Transfer and Analysis via desktop 2.0
Software
The software and the instructions you will fi nd on
our homepage via the following link: http://www.ge-
ratherm.com/en/health-care-3/download-area/.
Operations
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Care and Maintenance
Do not drop the unit.
It is not shock-proof.
Do not modify or
disassemble the unit
or the arm cuff.
Do not twist the arm
cuff.
Use a cloth moistened with water or
neutral detergent to
clean the body of the
unit and then wipe
it dry.
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Care and Maintenance
Avoid thinner, benzine, and other harsh
cleaners.
Keep the unit in a
suitable place.
Avoid high temperature, direct sunlight,
high moisture, and
dust.
Remove the batteries
if the unit will not be
used for a long time.
Do not press the
START button if the
cuff has not been
properly wrapped
around the arm.
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Error Messages
The pressure
measured was lower
than 20mmHg.
Please measure
again.
The pressure
measured was higher than 300mmHg.
Please measure
again.
Pumping error.
Please check
cuff and try again
The pressure can not
be measured due to
signal noise.
Please measure
again.
Messages
Corrections
Low battery.
Check and replace
the 4 batteries if
necessary.
The pumping
pressure is higher
than 300mmHg.
Please measure
again.
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Display System Liquid Crystal Display
Measuring Method Oscillometric method
Infl ation Centrifugal micro-pump
Pressure Exhaust Electric solenoid valve
Power Source 4 alkaline “AA“ type batteries
(1.5V) or AC/DC adapter
Measuring Range Blood pressure measuring range:
20-300mmHg
Heart pulse rate range:
40-200 pulse beats/min
Accuracy ±3mmHg (blood pressure)
±5% (pulse rate)
Memory 2 x 50 memory values with date
and time displayed
Low Battery Indicator yes
Battery Life around 250 measurements
Auto Power-Off after 150 sec.
Operating Environment +5°C-+40°C; RH<90%
Storage Environment -20°C-+55°C; RH<90%
Dimensions 168mm x 140mm x 64mm
Weight 484 g (incl. batteries)
Specifi cations
Specifi cations are subject to change without
notice for purposes of product improvement.
It is recommended that the unit be calibrated by
an authorised laboratory every two years.
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Disposal
Observe the applicable regulations when discar-
ding the device and batteries.
This product must not be disposed of together with
domestic waste.
All users are obliged to hand in all electrical or
electronic devices, regardless of whether or not
they contain toxic substances, at a municipal or
commercial collection point so that they can be
disposed of in an environmentally acceptable
manner.
Please remove the batteries before disposing of
the device/unit.
Do not dispose of old batteries with
your household waste, but at a battery
collection station at a recycling site or
in a shop.
The unit meets the requirements of Council Di-
rective 93/42/EEC concerning medical devices. A
Quality Management System, certifi ed according
to EN ISO 13485:2003, guarantees that the pro-
duct complies with the required quality criteria.
The blood pressure monitor conforms to EN 10601 (Non-invasive sphygmomanometers part 1: Ge-
neral requirements) and EN 1060-3 (Non invasive
sphygmomanometers part 3: Supplementary re-
quirements for electromechanical blood pressure
measuring systems).
Guarantee of Quality
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