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Weight

Can persons with implants use body fat scales?

Body fat scales must not be used with electrically operated impla (e.g. cardiac pacemalers, medication pumps)

Persons with electrically conducting implants (e.g. bone screws, hip replacements) can use the scales. However, incorrect measurements can occur because of the better electrical conductivity of the implant compared to the tissues.

Can pregnant women use a body fat scales?

The body fat scales should not be used during pregnancy. Because of the amniotic fluid, incorrect measurements can occur.

Why are different body fat readings obtained with measurements taken directly in succession?

Different weight readings can be caused by not standing still on the scales
The scales was pushed or lifted between the measurements, there was no correct zero setting or initialisation between the measurements
Due to technical tolerances, there can be a difference of up to +/- 0.5 kg in the readings between two measurements
Incorrect position on the scales, person stands a bit further forward or a bit further backward on the scales

Why are different body fat readings obtained with measurements taken directly in succession?

Fluctuating results in measurement of weight
Effect of external factors such as dryer feet etc.
Movement artefacts
User stands differently on the electrodes from one measurement to another

What does “Quick Start“ and “Tap on“ mean?

With scales with the “Quick Start“ function, the user can stand on the scales directly without switching it on beforehand. The scales switches on independently and then starts measuring when it is stepped on.
The “Tap on“ function describes switching on the scales by tapping the upper bowl of the scales. This means that the user has to tap on the scales and then wait until 0.0 appears in the display. It is only possible then to step on the scales and commence measurement.

What factors can affect the measurement of body fat?

Anatomical variations (e.g. considerably longer or shorter leg length)
Volume of calves and/or thighs
Training condition of the muscles
Bone structure
Fat distribution in the body
User’s state of health
Poor contact between soles of the feet and electrodes
Severe sweating
Use of medications
Oedema of the legs
Haematomas in the legs
Fever
Measurement after physical effort
Measurement at different times of the day
Fluctuating body weight
Pregnancy (amniotic fluid)
Metal implants
Calloused skin on the soles of the feet

Why do I have different readings in the normal and athlete mode?

The athlete mode is an additional function for adjusting the body fat measurement to the individual circumstances of a user group. When analysing body fat, several fixed parameters are specified in the scales‘ software for calculating the proportion of body fat, along with the actual measurement of body resistance. In the normal mode, these constants reflect the average of the “normal population“ as obtained in medical studies. The so-called athlete mode was incorporated as the distribution of the different body compartments (muscle, bone, fat etc.) is different in athletes from that in the “normal population“. In this mode, constants that were obtained by medical studies with athletes are specified. The different readings are thus due to the different constants in the software.

How high is the imprecision / tolerance?

The repeat precision when reading weight measured on a scales is +/- 0.3 kg
If several scales are compared, the maximum tolerance at a weight of 40kg is +/- 0.5 kg and +/- 1.1 kg at a weight of 100 kg
The tolerance when measuring body fat or body water is +/- 1%

Blood pressure

Is the blood pressure device also suitable for detecting abnormalities of heart rate?

In heart rate disorders, particularly atrial fibrillation, electronic devices that use oscillometric measurement are only partially suitable. In this situation, the blood pressure must be measured with the stethoscope (Riva-Rocci method) as incorrect results can be obtained with electronic devices. See notes in the instructions for use.

Do the devices have to be calibrated regularly?

In accordance with the “Operating regulation for medical devices“, regular technical inspections must be carried out if the device is used for trade or commercial purposes. Even in the case of private use, we recommend technical inspection by the manufacturer at 2-year intervals.

Why do I get different readings with my blood pressure device than those at the doctor’s?

Blood pressure readings obtained at the doctor’s practice by the doctor or practice staff using the standardized Riva-Rocci method of listening to what are known as the Korotkoff sounds are usually somewhat higher than the blood pressure readings you obtain when you measure it yourself in a relaxed atmosphere at home. We call this “doctor’s surgery“ or “white coat“ hypertension. People who have raised blood pressure under the stress of everyday conditions can have normal readings under quiet conditions at the doctor’s. We then speak of “doctor’s surgery normotension“.

Why are different readings obtained in 2 successive readings?

Blood pressure and pulse depend on many factors that can have an effect even in the short term:

Physical influences
Medical influences
Physical exercise
Muscle tension
Talking
Excitement
Noise etc

The way the measurement is taken is also relevant:

cuff applied too tightly / too loosely
cuff not at heart level
too short a break between measurements
no visual or acoustic shielding of the subject

Device tolerances are also important, of course. In the case of devices with a manometer, there is also parallax error (error in reading the result).

Why are there differences between measurements on the upper arm and the wrist?

The wrist measurement must be taken with the wrist at heart level. If the arm is laid flat on a table, for instance when you are seated, the blood pressure is overestimated by approximately 7-8 mmHg because there is a difference from heart level (1.5cm is equivalent to 1 mmHg).

Incorrect results also occur with wrist measurement in the case of heart rate abnormalities and changes (e.g. due to age) in the arteries of the wrist. Particularly in elderly persons, wrist devices may give imprecise readings. The arteries in the upper arm are not so sensitive with regard to these influences.
For this reason, occasional measurements on the upper arm are recommended for comparison.

What are the guidelines for systolic and diastolic pressure?

Independent of age, the figures for normal blood pressure according to the German Hypertension League are:

Upper limits: systolic 140 mmHg / diastolic 90 mmHg
Ideal reading: systolic 120 mmHg / diastolic 80 mmHg

How long should one wait between 2 measurements?

There should be a break of at least 3 minutes before successive measurements.

Body temperature

Why do I get a different result measuring temperature with the ear or forehead thermometer compared to rectal measurement?

The different thermometers are suitable for measuring body temperature in different parts of the body.
Forehead thermometer: measurement only on the forehead, ear thermometer: measurement only in the ear, rod thermometer: rectal (in the back passage), axillary (under the arm) or oral measurement (in the mouth).

The temperature varies depending on the part of the body where the measurement is taken. The difference in healthy persons between different parts of the body can be between 0.2–1°C. The approximate normal temperature ranges are as follows:

Forehead temperature – measured with a forehead thermometer: 35.8°C to 37.6°C.
Ear temperature, measured with an ear thermometer: 36.0°C to 37.8°C.
Rectal temperature, measured with a conventional thermometer: 36.3°C to 37.8°C.
Orally measured temperature – measured with a conventional thermometer: 36.0°C to 37.4°C.

Beurer tip:
Temperatures measured with different thermometers cannot be compared with one another. You should therefore tell your doctor or bear in mind if you are diagnosing yourself what thermometer you used to take your temperature and in what part of the body.

Which factors can influence the temperature measurement with a healthy person?

The temperature of a healthy person is also influenced by the following factors:

The person’s individual metabolism
Age (body temperature is higher in babies and small children and falls with increasing age. Greater temperature fluctuations occur faster and more often in children)
Clothing
The outside temperature
The time of day (body temperature is lower in the morning and increases during the day towards evening)
Preceding physical and, to a lesser extent, mental activity

Beurer tip:
Taking the temperature gives a measurement that provides information about a person’s current body temperature. If you are uncertain about interpreting the results or if the result is abnormal (e.g. fever), you should consult your doctor. This also applies in the case of slight temperature changes if there are other symptoms of illness such as agitation, severe sweating, flushed skin, fast pulse rate, tendency to collapse etc.

Pulse

What can I do, if the scanner previously disconnected from the PC can no longer be addressed?

Disconnect the heart rate monitor from your PC and restart your PC. The scanner and the heart rate monitor can now be alternately connected and used.

What can I do, if the “Find new hardware” wizard appears while the driver has already been installed?

Always use the same USB port for data transfer as you used when installing the driver.
The driver must be installed seperately for every port. If necessary please re-install the driver installation and connect the heart rate monitor at the same time with the desired port of your PC.

What can I do, if “Please connect your heart rate monitor to the PC” appears in the data transfer window while the heart rate monitor is already connected?

Terminate data transfer with “Cancel” and disconnect the heart rate monitor from the PC.
Disconnect any scanners connected to your PC via a USB cable.
Re-start the data transfer and connect the heart rate monitor to the same port as you used when installing the driver on your PC.
When scanners are connected, driver conflicts may interfere with the transfer of data.

What can I do, if the data transfer can still not be successfully completed?

Uninstall the driver (see Uninstall_Readme.pdf)
Then re-install the driver (see Install_Readme.pdf)

Which possibility do I have if the transmission of the signal from the chest belt to the heart rate monitor interrupts during biking? (PM80/WM80)

If you want to use the heart rate monitor for biking, fix the heart rate monitor with the included bicycle mounting bracket to the handle bar. The transmission of the signal is essentially better when the heart rate monitor is mounted to the handle bar.

What’s the fault if the heart rate monitor shows no signal or a „0“ in the first line of the display? (PM80/WM80)

The heart rate monitor can’t receive the signals of the chest belt. Please check the following points:

Is the chest belt put on correctly? Pay attention to the information about putting on the chest strap in the chapter „Getting started“, section „Putting on the chest strap“ in your instruction manual.

ls from the device“ of your instruction manual how you can pair the devices.

If your heart rate monitor still doesn’t receive any signal of the chest belt please change to the menu „Training“. The heart rate monitor tries to re-connect the devices.