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Pulse oximeter
Beurer GmbH • Söinger Str. 218 • 89077 Ulm • Germany
www.beurer.com • www.beurer-healthguide.com
ENGLISH
Dear customer,
Thank you for choosing one of our products. Our name stands for high-quality, thoroughly tested products for
applications in the areas of heat, weight, blood pressure, body temperature, pulse, gentle therapy, massage,
beauty, baby and air. Please read these instructions for use carefully and keep them for later use, be sure to make
them accessible to other users and observe the information they contain.
With kind regards,
Your Beurer team
1. Included in delivery
1x PO 45 pulse oximeter, 2x 1,5 V AAA batteries, 1x lanyard, 1x belt bag, 1x these instructions for use
2. Intended use
The Fingertip Pulse Oximeter PO 45 is a handheld non-invasive device intended for spot-checking of oxygen
saturation of arterial hemoglobin (SpO
) and Pulse Rate of adult, adolescent and child patients in hospitals,
2
hospital-type facilities and homecare.
3. Getting to know your instrument
The Beurer PO 45 pulse oximeter provides a non-invasive measurement of the arterial oxygen saturation (SpO
the heart rate (pulse rate) (PRbpm) and the perfusion index (PI). Oxygen saturation indicates the percentage of
haemoglobin in arterial blood that is loaded with oxygen. Therefore it is an important parameter for assessing the
respiratory function.
Oxygen binds to hemoglobin in red blood cells when moving through the lungs.
It is transported throughout the body as arterial blood. A pulse oximeter uses
two frequencies of light (red and infrared) to determine the percentage (%) of
hemoglobin in the blood that is saturated with oxygen. The percentage is called
blood oxygen saturation, or SpO
. A pulse oximeter also measures and
2
displays the pulse rate at the same time it measures the SpO
level.
2
1. Red and Infrared-ray Emission Tube
2. Red and Infrared-ray Receipt Tube
A low oxygen saturation value generally indicates underlying illnesses (respiratory diseases, asthma, heart failure
etc.).
People with a low oxygen saturation value are more likely to experience the following symptoms: shortness of
breath, increased heart rate, weakness, nervousness and outbreaks of sweating. If oxygen saturation is known to
be chronically diminished, it requires monitoring using the pulse oximeter under medical supervision. If you have
acutely diminished oxygen saturation, with or without the accompanying symptoms, you must consult a doctor
immediately as it could lead to a life-threatening situation. The pulse oximeter is particularly suitable for patients
at risk such as people with heart disease or asthma, but also for athletes and healthy people who exercise at high
altitude (e.g. mountaineers, skiers or amateur pilots).
Features of the pulse oximeter
• Easy to use and to take with you (ideal for on the go)
• Compact, lightweight design
• Two-colour OLED display, readings for oxygen saturation (SpO
), pulse rate (PRbpm) and perfusion index (PI)
2
are shown
• Adjustable display brightness (1 to 10)
• 7 display formats/low battery indicator/automatic switch-o after 8 seconds if no signal is received
4. Signs and symbols
The following symbols are used in these instructions for use, on the packaging and on the type plate for the
device:
WARNING
Manufacturer
Warning instruction indicating a
risk of injury or damage to health
IMPORTANT
Application part, type BF
Safety note regarding potential for
damage to the device/accessories
Do not dispose of batteries con-
Note
taining hazardous substances with
Note on important information
household waste.
This product satises the require-
Observe the instructions for use
ments of the applicable European
and national directives.
Arterial oxygen saturation of
%SpO₂
Serial number
haemoglobin (in percent)
PR bpm
Pulse rate (beats per minute)
Alarm suppression
PI %
Perfusions index
SpO
2
Storage
Device protected against foreign
Permissible storage temperature
IP22
objects ≥ 12.5 mm and against falling
and humidity
drops of water
Operating
Disposal in accordance with the
Permissible operating temperature
Waste Electrical and Electronic
and humidity
Equipment EC Directive – WEEE
Dispose of packaging in an environ-
21
Low power indication
mentally friendly manner
PAP
5. Warnings and safety notes
Non-observance of the following information may result in personal injury or material damage. Store these instruc-
tions for use and make them accessible to other users. Make sure you include these instructions for use when
handing over the device to third parties.
WARNING
• Check to ensure that the package contains all the parts that should be included in the delivery.
• Check the pulse oximeter regularly before use to ensure that there is no visible damage to the device and the
batteries are still suciently charged. In case of doubt, do not use the device and contact Beurer customer
services or an authorised retailer.
• Do not use any additional parts that are not recommended by the manufacturer or oered as equipment.
• Under no circumstances should you open or repair the device yourself, as faultless functionality could no
longer be guaranteed thereafter. Failure to comply will result in voiding of the warranty. For repairs, please
contact Beurer customer services or an authorised retailer.
Do NOT use the pulse oximeter
− if you are allergic to rubber products.
− if the device or the nger you are using is damp.
− on small children or babies.
− during an MRI or CT scan.
− while transporting a patient other than within a medical establishment.
− whilst taking a blood pressure measurement on the same arm using a cu.
− on ngers that have nail varnish on, are dirty or have a plaster or other dressing on them.
− on large ngers that do not t into the device easily (ngertip: width approx. > 20 mm, thickness approx.
>15 mm).
− on ngers with anatomical changes, oedemas, scars or burns.
− on ngers that are too small, as with small children for example (width approx. < 10 mm, thickness < 5 mm).
− on patients who are not steady at the site of application (e.g. trembling).
− near ammable or explosive gas mixtures.
• Using the device for long periods may cause pain for people with circulatory disorders. Therefore do not
use the pulse oximeter for longer than 30 minutes on one nger. This is essential to ensure correct sensor
orientation and to safeguard the integrity of the skin.
• The pulse oximeter displays an instantaneous measurement but cannot be used for continuous monitoring.
• The pulse oximeter does not have an alarm function and is therefore not suitable for evaluating medical results.
• Do not self-diagnose or self-medicate on the basis of the measurements without consulting your doctor. In
particular, do not start taking any new medication or change the type and/or dosage of any existing medication
without prior approval.
• Do not look directly inside the housing during the measurement. The red light and the invisible infra-red light in
the pulse oximeter are harmful to your eyes.
• Portable RF communications equipment (including peripherals such as antenna cables and external antennas)
should be used no closer than 30 cm (12 inches) to any part of the PO 45. Otherwise, degradation of the
performance of this equipment could result.
• The pulse oximeter equipment is calibrated to display functional oxygen saturation.
• This device is not intended for use by people (including children) with restricted physical, sensory or mental
skills or a lack of experience and/or a lack of knowledge, unless they are supervised by a person who has
responsibility for their safety or they receive instructions from this person on how to use the device. Children
should be supervised around the device to ensure they do not play with it.
• The displays for the pulse wave and pulse bar allows the strength of the pulse or circulation to be evaluated
at the measurement site. Rather, they are exclusively used to display the current visual signal variation at
the measurement site and do not enable reliable diagnostics for the pulse.
Non-observance of the following instructions can lead to incorrect or failed
measurements:
• There must not be any nail varnish, articial nails or other cosmetics on the nger to be measured.
• Ensure that the nger nail on the nger to be measured is short enough that the ngertip covers the sensor
element in the housing.
• If the person moves while the measurement is being taken. Keep your hand, nger and body steady during the
measurement.
• For people with cardiac arrhythmia, the oxygen saturation level (SpO₂) readings and the heart rate (PRbpm) may
be incorrect or the measurement may not be possible at all.
• If an electronic surgical device or debrillator is used, the functioning of the pulse oximeter may be impaired.
• In cases of carbon monoxide poisoning, the pulse oximeter displays a measurement value that is too high.
• To avoid falsifying the measuring result, there should not be any strong light sources (e.g. uorescent lamps or
direct sunlight) in the immediate vicinity of the pulse oximeter.
• People with low blood pressure, who suer from jaundice or take medication for vascular contraction may
experience incorrect or falsied measurements.
• Incorrect measurements are likely for patients who have been administered medical dye in the past or for those
who have abnormal haemoglobin levels. This applies in particular for cases of carbon monoxide poisoning and
methaemoglobin poisoning, which can occur for example from the administration of local anaesthetics or from
an existing methaemoglobin reductase deciency.
• The measurement may be falsied in patients with an arterial catheter, hypotension, severe vascular con-
striction, anaemia or hypothermia.
• Protect the pulse oximeter from dust, shocks, moisture, extreme temperatures and explosive materials.
6. Unit description
PO 45
Device
Function button
Finger opening
Display
1
2
3
4
Display formats (7 dierent formats)
),
2
1.
2.
7.
Initial use
7.1 Inserting the batteries
1. Slide the battery compartment
2. Insert the two supplied bat-
lid open.
teries into the pulse oximeter
battery compartment following
the correct polarity as shown.
7.2 Attaching the lanyard
To transport the pulse oximeter more easily (e.g. whilst on the move) you can attach a lanyard to the device.
1. Insert the narrow end of the lanyard through the
holder as shown.
8. Operation
1. Insert one nger into the nger
2. Press the function button.
opening of the pulse oximeter
The pulse oximeter begins its
as shown and hold it steady.
measurement. Do not move
during the measurement.
Note
?
• If the
, symbol appears on the display this indicates that the measurement signal is unstable, and the readings
shown are invalid.
• When you remove your nger from the pulse oximeter, the device will automatically switch o after approx.
8 seconds.
• To select your desired display format, hold down the function button briey during operation.
• To select your desired display brightness, hold down the function button for slightly longer during operation.
9. Evaluating measurement results
WARNING
The following table for evaluating your measurements does NOT apply to people with certain pre-existing con-
ditions (e.g. asthma, heart failure, respiratory diseases) or whilst staying at altitudes above 1500 metres. If you
have a pre-existing condition, always consult your doctor to evaluate your measurements.
SpO₂ (oxygen saturation) measurement in %
99 – 94
93 – 90
< 90
Source: Adapted to "Windisch W et al. Guidelines for Non-Invasive and Invasive Home Mechanical Ventilation for
Treatment of Chronic Respiratory Failure Update 2017; Pneumologie 2017; 71: 722795"
Evaluating perfusion index
The perfusion index (PI) may lie between 0.3% and 20%, and varies depending on the patient, measurement
location and state of health. A very low PI value can impair the measurement.
Decline in oxygen saturation depending on altitude
Note
The following table informs you of the eects of various altitudes on oxygen saturation value and its impact
on the human body. The following table does NOT apply to people with certain pre-existing conditions (e.g.
asthma, heart failure, respiratory diseases etc.). People with pre-existing conditions can show signs of illness
(e.g. hypoxia) at lower altitudes.
Altitude
Expected SpO₂ value (oxygen satura-
tion) in %
1500 – 2500 m
> 90
2500 – 3500 m
~90
3500 – 5800 m
< 90
5800 – 7500 m
< 80
7500 – 8850 m
< 70
Source: Hackett PH, Roach RC: High-Altitude Medicine. In: Auerbach PS (ed): Wilderness Medi-
cine, 3rd edition; Mosby, St.Louis, MO 1995; 1-37.
10. Maintenance/cleaning
IMPORTANT:
Do not use high pressure or ethylene oxide sterilisation on the pulse oximeter! The device is not
suitable for sterilisation.
Under no circumstances should you hold the pulse oximeter under water, as this can cause liquid to
enter and damage the pulse oximeter.
• Clean the housing and the interior rubber surface with a soft cloth dampened with medical alcohol after each
use.
• If a low battery status appears on the display of the pulse oximeter, change the batteries.
• If you are not going to use the pulse oximeter for more than one month, remove both batteries from the device
to avoid possible leaking.
11. Storage
IMPORTANT:
Store the pulse oximeter in a dry place (relative humidity ≤ 93 %). If the humidity is too high it may shorten the
service life of the pulse oximeter or damage it. Store the pulse oximeter in a place where the ambient temperature
is between -25 °C and 70 °C.
12. Disposal
Please dispose of the device in accordance with EC Directive – WEEE (Waste Electrical and Electronic
Equipment). If you have any questions, please contact the local authorities responsible for waste
disposal.
The empty, completely at batteries should be disposed of through specially designated collection boxes,
recycling points or electronics retailers. You are legally required to dispose of the batteries.
Note: The codes below are printed on batteries containing harmful substances:
Pb = Battery contains lead,
Cd = Battery contains cadmium,
Hg = Battery contains mercury.
13. What if there are problems?
"Finger out" appears on
the display
Measurement values are
not correctly displayed
Lanyard holder
5
1. Oxygen saturation (value in percent)
2. Inaccurate measurement
The pulse oximeter is
3. Pulse rate (value in beats per minute)
displaying measurement
interruptions or high meas-
4. Pulse bar
urement value jumps
5. Perfusion index (value in percent)
6. Pulse wave
6
Pulse oximeter will not
switch on.
Indicator light goes out
suddenly
"Error 3" appears on the
display
"Error 4" appears on the
display
"Error 6" appears on the
display
"Error 7" appears on the
display
3. Close the battery compartment
cover again.
14. Technical data
Type
Measurement method
Measurement range
Accuracy
Dimensions
2. Draw the other end of the lanyard through the loop
at the narrow end and tighten.
Weight
Sensor to measure SpO₂
Permissible operating conditions
%SpO
PRbpm
––
2
?
–––
Permissible storage conditions
%SpO
2
PRbpm
98
65
Power supply
Battery life
3. Your measurement values will
appear on the screen after a
Classification
few seconds.
Equipment response time
The serial number is located on the device or in the battery compartment.
Technical information is subject to change without notication to allow for updates.
• This device conforms with the European standards EN60601-1 and EN60601-1-2 (In accordance with CISPR,
IEC 61000-4-2, IEC 61000-4-3 and IEC 61000-4-8) and is subject to particular precautions with regard to
electromagnetic compatibility. Please note that portable and mobile HF communication systems may interfere
with this device. For more details, please contact our Customer Services at the address indicated.
• This device complies with EU Directive 93/42/EEC concerning medical devices, the Medizinproduktegesetz
(German Medical Devices Act) and the DIN EN ISO 80601-2-61 standard (Medical electrical equipment –
Particular requirements for the basic safety and essential performance of pulse oximeter equipment for medical
use).
Notes on electromagnetic compatibility
WARNING
• The device is suitable for use in all environments listed in these instructions for use, including domestic envi-
ronments.
• The use of the device may be limited in the presence of electromagnetic disturbances. This could result in
Classication/measures to be taken
issues such as error messages or the failure of the display/device.
• Avoid using this device directly next to other devices or stacked on top of other devices, as this could lead to
Normal range
faulty operation. If, however, it is necessary to use the device in the manner stated, this device as well as the
other devices must be monitored to ensure they are working properly.
Decreased range: Visit to the doctor recommended
• The use of accessories other than those specifed or provided by the manufacturer of this device can lead to an
increase in electromagnetic emissions or a decrease in the device's electromagnetic immunity; this can result
Critical range: Seek medical attention urgently
in faulty operation.
• Keep portable RF communication devices (including peripheral equipment, such as antenna cables or external
antennas) at least 30 cm away from all device parts, including all cables included in delivery. Failure to comply
with the above can impair the performance of the device.
• Failure to comply with the above can impair the performance of the device.
15. Warranty/service
Beurer GmbH, Söinger Straße 218, 89077 Ulm, Germany (hereinafter referred to as "Beurer") provides a warranty
for this product, subject to the requirements below and to the extent described as follows.
The warranty conditions below shall not aect the seller's statutory warranty obligations which
ensue from the sales agreement with the buyer.
The warranty shall apply without prejudice to any mandatory statutory provisions on liability.
Beurer guarantees the perfect functionality and completeness of this product.
The worldwide warranty period is 5 years, commencing from the purchase of the new, unused product from the
seller.
Impact on human body
The warranty only applies to products purchased by the buyer as a consumer and used exclusively for personal
purposes in the context of domestic use.
German law shall apply.
No altitude sickness (normally)
During the warranty period, should this product prove to be incomplete or defective in functionality in accordance
Altitude sickness, acclimatisation
with the following provisions, Beurer shall carry out a repair or a replacement delivery free of charge, in accord-
recommended
ance with these warranty conditions.
If the buyer wishes to make a warranty claim, they should approach their local retailer in the rst
Very frequent altitude sickness, acclimati-
instance: see the attached "International Service" list of service addresses.
sation absolutely essential
The buyer will then receive further information about the processing of the warranty claim, e.g. where they can
Severe hypoxia, only limited length of stay
send the product and what documentation is required.
possible
A warranty claim shall only be considered if the buyer can provide Beurer, or an authorised Beurer partner, with
Immediate, acute danger to life
- a copy of the invoice/purchase receipt, and
- the original product.
The following are explicitly excluded from this warranty:
- deterioration due to normal use or consumption of the product;
- accessories supplied with this product which are worn out or used up through proper use (e.g. batteries,
rechargeable batteries, cus, seals, electrodes, light sources, attachments and nebuliser accessories);
- products that are used, cleaned, stored or maintained improperly and/or contrary to the provisions of the in-
structions for use, as well as products that have been opened, repaired or modied by the buyer or by a service
centre not authorised by Beurer;
- damage that arises during transport between manufacturer and customer, or between service centre and
customer;
- products purchased as seconds or as used goods;
- consequential damage arising from a fault in this product (however, in this case, claims may exist arising from
product liability or other compulsory statutory liability provisions).
Repairs or an exchange in full do not extend the warranty period under any circumstances.
Problem
Possible cause
Solution
The nger on which the measure-
Insert the nger in the pulse oximeter
ment is being taken has not been
again
inserted properly in the pulse
oximeter
The measured SpO₂ is too low
Do the measurement again. If the prob-
(< 70 %)
lem occurs repeatedly and the device
is functioning properly, seek medical
advice as a matter of urgency
There is a strong light source
Remove pulse oximeter from the vicinity
(e.g. uorescent lamp or direct
of these light sources
sunlight) in the vicinity
Insucient circulation in the
Observe the warnings and safety notes
measurement nger
in section 5
Measurement nger is too large
Fingertip must have the following meas-
or too small
urements: Width between 10 and 20 mm
Thickness between 5 and 15 mm
Finger, hand or body is moving
Keep your nger, hand and body still
during the measurement.
Cardiac arrhythmia
Seek medical attention
Batteries are at
Replace the batteries
The batteries have not been
Reinsert the batteries
inserted correctly
The pulse oximeter is faulty.
Contact the retailer or Customer Services
The pulse oximeter switches o
Switch the pulse oximeter on again using
automatically after 8 seconds if it
the ON/OFF button.
is not receiving a signal
Batteries are at
Replace the batteries
The red light receiving LED is
Contact the retailer or Customer Services
faulty
The infrared light receiving LED
Contact the retailer or Customer Services
is faulty
The display is faulty.
Contact the retailer or Customer Services
The receiving LEDs are faulty
Contact the retailer or Customer Services
PO 45
Non-invasive measurement of arterial oxygen saturation of haemoglobin, pulse
rate and perfusion index in finger.
SpO₂ (oxygen saturation): 70 – 100 %,
pulse: 30 – 250 beats/minute
PI: 0.3 – 20 %
SpO₂ (oxygen saturation): 70 – 100 %, ± 2 %,
pulse: 30 – 250 bpm, ± 2 beats/minute
PI: 0.3% – 1 %; ±0.2 digits; >1.1 % ± 20 %
L 59 mm x W 33 mm x H 33 mm
Approx. 57 g (including batteries)
Red light (wave length 660 nm ± 3nm, 3.2 mW);
infra-red (wave length 905 nm ± 10 nm, 2.4 mW);
silicon receiver diode
+5 °C to +40 °C, ≤15 – 93 % relative humidity, 70 – 106 kPa ambient pressure
-25 °C to +70 °C, ≤93 % relative humidity, 70 – 106 kPa ambient pressure
2 x 1.5V
AAA batteries
2 AAA alkaline batteries last for approx. 2 years of operation at 1 measure-
ments per day (each of 60 seconds).
IP22, application part, type BF
Response time of changing value is 8 seconds.
Subject to errors and changes
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