Beurer GL 50 evo User Manual

mg/dL

instructions for use

Codefree

3 IN 1 BLOOD GLUCOSE MONITOR

step by step

GL50 evo

GB

Beurer GmbH • Söfl inger Straße 218 • 89077 Ulm, Germany
www.beurer.com

germanlengineering

Contents

1 Getting to know your instrument ...................................................................................4

Getting to know your instrument..................................................................................................4

1.1 Delivery scope, replacements and accessories ..................................................................... 5

1.2 Functions of the device ..........................................................................................................6

1.3 Signs and symbols ................................................................................................................. 7

2 Warnings and safety notes ...............................................................................................8

3 Description of units and accessories ........................................................................ 11

3.1 Blood glucose monitor ......................................................................................................... 11

3.2 Lancing device and lancet needles ...................................................................................... 12

3.3 USB cover ............................................................................................................................ 12

3.4 Display symbols ................................................................................................................... 12

3.5 Test strips ............................................................................................................................. 13

4 Initial use and basic settings ......................................................................................... 14

4.1 Charging the rechargeable battery.......................................................................................14

4.2 Making and changing basic settings ...................................................................................15

5 Taking measurements .......................................................................................................18

5.1 Preparing to take a blood sample ........................................................................................18

5.2 Preparing the lancing device for taking a sample ................................................................19

5.4 Reading the result and labelling measurements ..................................................................23

5.5. Post-processing and disposal ............................................................................................24

5.6 Evaluating measured blood glucose values ......................................................................... 24

5.7 Functional check using control solution ...............................................................................26

6 Measurement memory ..................................................................................................... 29

6.1 Displaying individual values ................................................................................................. 29

6.2 Displaying average blood glucose values ............................................................................ 30

6.3 Evaluating measured values on a PC ................................................................................... 30

7 Storing, maintaining and disinfecting the device ................................................ 31

7.1 Maintenance ........................................................................................................................31

7.2 Disinfection ..........................................................................................................................31

8 What if there are problems?...........................................................................................32

9 Technical specifications ..................................................................................................34

10 Comparison of measured values with laboratory value ................................ 35

11 Usage limits for specialist personnel from the healthcare sector: .......... 37

12 Guarantee and customer service..............................................................................39

Beurer GL50 evo mg/dL 3

1 getting to knoW your instrument

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, blood glucose measurement,
body temperature, pulse, gentle therapy, massage 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.

Getting to know your instrument

The GL50 evo blood glucose monitor is intended for fast and simple blood glucose measurement of
fresh capillary blood samples, either for self-testing or in a clinical environment by trained personnel.
It enables you to measure your blood glucose quickly and easily, store the measured values and dis­play the average of all measured values, thereby providing optimum assistance for monitoring your
diabetes. The test is performed exclusively externally (IVD).
The backlit display shows measured values clearly. The user-friendly design that features handy test
strips and is operated via a single scroll wheel guarantees simple yet reliable measurements.
The device can be connected directly to a PC using the integrated USB connection. You can evaluate
the measured values on your PC using special software (in English and German) and use the results
to monitor your blood glucose values.
Alternatively, you can transfer the measured values to your smartphone/tablet using the optional
Bluetooth® adapter.

4 Beurer GL50 evo mg/dL

1.1 Delivery scope, replacements and accessories

Check that the set packaging has not been tampered with and make sure that all contents are pre­sent. Before use, ensure that there is no visible damage to the device or accessories and that all
packaging material has been removed. If you have any doubts, do not use the device and contact
your retailer or the specifi ed Customer Services address.

A “3 in 1” monitor: Lancing device, plug-in USB and monitor

B AST cap for taking blood samples from alternative parts of the body

C USB cover

D 5 test strips

E 5 sterile lancet needles

F 1 practical case

These Instructions for use, additional information

•

The blood glucose monitor (A), test strips (D) and additionally available control solutions have been

specially designed to complement each other. For this reason, use only test strips (D) and control
solutions that have been approved for this blood glucose monitor (A).

Note

•

Use original manufacturer accessories only.

Beurer GL50 evo mg/dL 5

Follow-up purchases

You can also obtain test strips, control solution and lancet needles without a prescription.

Item REF

50 test strips REF 464.15

Control solution LEVEL 3 and 4 REF 464.16

100 lancet needles REF 457.01

1.2 Functions of the device

This device is intended for measuring the blood glucose content in human blood. It is also suitable
for self-testing at home.
The blood glucose monitor enables you to quickly and simply:

•

Measure your blood glucose level

•

Display, label and save measured values

•

Display the average measured blood glucose value from the last 7, 14, 30 and 90 days

•

Display the average of the labelled measured blood glucose values from the last 7, 14, 30 and 90
days

•

Set the time and date

•

Evaluate the saved measured values on a PC using special software.

• The saved measured values can be transferred to a smartphone/tablet using the optional Bluetooth®
adapter.

The blood glucose monitor also includes the following monitoring functions:

•

Blood volume check

•

Warning in the event of unsuitable temperatures

•

Alarm function

•

Ketone warning

•

State of charge display when rechargeable battery is low.

Warning

•

Do not use the device to diagnose diabetes; it is intended for regular monitoring only.

•

Consult your GP with regard to insulin doses.

6 Beurer GL50 evo mg/dL

1.3 Signs and symbols

The symbols on the packaging, type plate of the blood glucose monitor and accessories represent
the following:

In vitro diagnostics

Serial number

Temperature limit
+2°C to +30°C

Not for re-use/For single use
only

Use by

Maximum shelf life after
initial opening in months

Batch designation

Sterilised by radiation (lancets)

Art.-Nr.

Warning, see accompanying
documents

Manufacturer

Please observe the Instructions
for use

PCT: certification symbol for
products that are exported to the
Russian Federation and mem­bers of the CIS

Green dot (Der Grüne Punkt):
German dual waste collection
system

Contents sucient for <n> tests

/

Order number

Unit of measurement for blood
glucose value

Rechargeable battery

Biohazard, risk of infection

In the Instructions for use, the symbols represent the following:

Warning

Warning instruction indicating a risk of injury or damage to your health/your patient’s health.

Important

Safety note indicating possible damage to the unit/accessory.

Note

Note on important information

Beurer GL50 evo mg/dL 7

2 Warnings and safety notes

Risk of infection

All components of the blood glucose monitor and its accessories may come into contact
with human blood and are therefore a possible source of infections.

Warning

•

This blood glucose monitor must display the blood glucose content in mg/dL. The unit of meas-

urement mg/dL accompanies each blood glucose value. Please contact Customer Services if
the device does not display mg/dL. You risk damaging your health if you measure your blood
glucose value using a unit of measurement with which you are not familiar, misinterpret the
values and therefore take incorrect measures.

•

When using the blood glucose monitor for various persons, observe the generally applicable regula-

tions regarding disinfection, safety and contamination.

•

Medical carers and others who use this system on several patients must be aware that all products

or objects that come into contact with human blood must be handled, even after cleaning, as though
they could transfer pathogens.

•

The lancing device is suitable for self-testing. Do not share the lancing device or lancet needles with

others or amongst various patients (risk of infection!).

•

Use a new, sterile lancet needle for each blood sample (for single use only).

General notes

Warning

Do not use the device in the vicinity of strong electromagnetic fields and keep it away from radio
systems or mobile telephones.

Measuring the blood glucose content

Warning

•

The measurements taken by you are for your information only – they are no substitute for a medical

examination! Consult your GP regularly regarding your measured values. Do not alter the procedures
prescribed by your GP.

•

The Beurer GL50 evo monitor provides a simple way of monitoring your own blood glucose levels,

however, you may need to obtain information on how to use the system from your healthcare profes
sional (for example, your GP, chemist or diabetes consultant). Only proper use will guarantee precise
measurements.

•

A lack of water, high fluid loss, for example perspiration, frequent passing of water, severe hypoten-

sion (low blood pressure), shock or hyperosmolar hyperglycaemic non-ketotic coma (HHNKC) may
lead to incorrect measured results.

-

8 Beurer GL50 evo mg/dL

•

An excessively high or low hematocrit value (proportion of red blood cells) may lead to incorrect

measurements. In the event of a very high hematocrit value (above 60%), the displayed blood glu­cose value may be too low; in the event of a very low hematocrit value (below 20%), it may be too
high. Consult your GP if you do not know your hematocrit value.

•

Do not use the test strips to measure blood glucose values on newborns.

•

Do not use NaF or potassium oxalate anticoagulants to prepare for venous blood samples.

•

Do not test any severely ill patients using this device.

•

Use fresh capillary whole blood only. Do not use serum or plasma.

•

Use capillary blood without squeezing the penetration area. If the area is squeezed, the blood is di-

luted with tissue fluid and this may lead to an incorrect result.

•

Do not use the test strips above an altitude of 7010 m.

•

Very high levels of humidity may influence the test results. Relative humidity of more than 90% may

lead to inexact results.

Note

The Beurer GL50 evo mg/dL measuring system is intended for measuring capillary and venous
whole blood.

Storage and maintenance

Warning

•

Store the measuring device and its accessories out of the reach of small children and pets. Small

parts, such as lancet needles, cover caps or test strips may be life-threatening when swallowed.

•

The test strip box contains desiccant, which may irritate the skin or eyes when inhaled or swallowed.

Keep the box out of the reach of children.

The blood glucose monitor is made from precision and electronic components. The accuracy of the
measurements and service life of the device depend on its careful handling:

•

Protect the device and its accessories from impacts, humidity, dirt, marked temperature fluctuations

and direct sunlight. Do not store the device, test strips and control solution in your vehicle, in the
bathroom or in a cooling appliance.

•

Do not drop the device.

Repairs

Note

•

Do not open the device. Failure to comply will result in voiding of the warranty.

•

Do not repair the device. Proper operation can no longer be guaranteed in this case.

•

Please contact Customer Services for repairs.

Beurer GL50 evo mg/dL 9

Disposal

Warning

• It is essential to comply with the generally applicable safety precautions for handling blood when dis­posing of materials from the blood glucose monitor. Dispose of all blood samples and materials with
which you or your patients come into contact correctly in order to prevent injury and infection of other
persons.

•

After use, dispose of test strips and lancets in a puncture-proof container.

Note

Rechargeable batteries must not be disposed of with household waste. As a consumer, you are required
by law to recycle used rechargeable batteries. You can recycle your old rechargeable batteries at public
collection points in your community or wherever rechargeable batteries of the relevant type are sold.

For environmental reasons, do not dispose of the device in the household waste at the end
of its useful life. Please dispose of the unit 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.

10 Beurer GL50 evo mg/dL

3 description of units and accessories

3.1 Blood glucose monitor

An overview of the monitor

1 2 3

1 Lancing device
2 Plug-in USB
3 Monitor

Front

1 Display
2 Slot for test strips
3 Scroll wheel
4 Sliding switch for

on/o

2 Rear

3

1

4

1 Scroll wheel
2 Sliding switch for on/o
3 Tensioning slider

1

2

3

Beurer GL50 evo mg/dL 11

3.2 Lancing device and lancet

needles

1 AST cap (transparent)
2 Cap
3 Protective lancet disc
4 Sterile lancet needle
5 Lancet holder
6 Dial for setting

dierent penetration depths
7 Tensioning slider
8 Trigger

2

3

4

1

3.3 USB cover

If you would like to use the blood glucose monitor
without the integrated lancing device, you can use the
supplied USB cover in place of the lancing device.

3.4 Display symbols

1

2

7

6

5

Note

The blood glucose monitor is supplied with the following basic settings:

• Blood glucose unit: mg/dL

• Acoustic signal on

• Bluetooth® o

• Ketone warning on

• Language: German

3

4

1 Battery status
2 Storage place
3 Blood glucose unit mg/dL
4 Measurement Time
5 Symbols for labelling measurements
6 Measurement Date
7 Measured value display
8 Blood glucose unit mg/dL

5

687

12 Beurer GL50 evo mg/dL

3.5 Test strips

Front Rear

1 Gap for blood input
2 Handle
3 Contacts

Insert the test strip into the device so
that the contacts are pointing inside
the slot.
Make sure that the front of the test
strip is facing you.

Note

Read carefully the following information on handling and storing your test strips. The test strips will
only provide accurate measured results if all notes are followed.

Warning

Use each test strip only once and for one patient only!

Handling test strips

Note

•

Securely close the test strip box immediately after taking out a test strip.

•

Do not use the test strips if they have expired. The expiry date is located next to the egg timer sym-

bol on the box or on the respective fi lm packaging of the individual test strips. .

You can identify the rear by the contact tracks.

Beurer GL50 evo mg/dL 13

•

The test strips expire three months after the box is opened. Note down the expiry date (date of open-

ing plus three months ) on the label. The shelf life is limited to the expiry date (see date next to the
egg timer symbol ). This does not apply for individual test strips, which are to be used immediately
after opening.

• Discontinue use of the test strips if one of the two expiry dates has passed ( / ).

•

You can touch any part of the test strip with clean, dry hands.

•

Use the test strip for measurement immediately after removing it from the box/film packaging.

•

Do not bend, cut or otherwise modify the test strips.

•

Do not use test strips that have come into contact with fluids.

Storing test strips

Note

•

Keep the test strips in a cool, dry place above +2°C and below +30°C. Do not expose the test strips

to direct sunlight or heat. Do not store in your vehicle, in the bathroom or in a cooling appliance.

•

Permitted relative air humidity below 90%.

•

The test strips must be stored in the original box/unopened film packaging – never use other con-

tainers.

4 initial use and basic settings

4.1 Charging the rechargeable battery

Note

•

Before putting the blood glucose monitor into operation for the first time, you must fully charge the

rechargeable battery. To charge the rechargeable battery, proceed as follows:

Remove the lancing device from the blood glucose monitor. Connect the blood glucose moni-

1

tor to a computer via the USB port.

Leave the blood glucose monitor to charge for 2 hours.

2

Once you have fully charged the rechargeable battery of the blood glucose monitor, discon-

3

nect the blood glucose monitor from the computer.

Place the lancing device back on the blood glucose monitor.

4

14 Beurer GL50 evo mg/dL

4.2 Making and changing basic settings

Setting the date and time

1

To activate the device, set the sliding switch for on/o to setting “(on)”.

o

The sliding switch for on/o serves as a key lock for the scroll wheel.

Note

You must set the date and time. Otherwise, you will not be able to save your measured values
correctly with a date and time and access them again later.
The time can be displayed in 12-hour format or 24-hour format.

1. Switch on the blood glucose monitor by briefly pressing and holding the scroll wheel.

2. Rotate the scroll wheel until the arrow is pointing towards “settings”, then press the scroll
wheel.

3. Rotate the scroll wheel until the arrow is pointing towards “date/time”, then press the scroll
wheel.

4. Press the scroll wheel. Set the year by rotating the scroll wheel, then press the scroll wheel.

5. Rotate the scroll wheel to next setting point and press the scroll wheel. Use the same pro
cedure to set the month, day, 24 h or 12 h mode, hour and minute.

6. To save the settings, rotate the scroll wheel until the arrow is pointing towards “save” and
confirm by pressing the scroll wheel.

Setting the alarm

2

You can set an alarm on the blood glucose monitor. An acoustic signal sounds to the set alarm
time. You can set 4 dierent alarm times. To set an alarm, proceed as follows:

1. Switch on the blood glucose monitor by briefly pressing and holding the scroll wheel.

2. Rotate the scroll wheel until the arrow is pointing towards “settings”, then press the scroll

wheel to confirm.

3. Rotate the scroll wheel until the arrow is pointing towards “alarm”, then press the scroll wheel.

4. Choose one of the four alarm times with the scroll wheel, then press the scroll wheel.

5. Rotate the scroll wheel until the hour is marked, then press the scroll wheel. Now set your

desired alarm hour by rotating the scroll wheel and press the scroll wheel to confirm.

5. Use the same procedure to set the alarm minute.

6. In order to start the alarm, rotate the scroll wheel to “on” and press the scroll wheel.

7. In order to turn o the alarm, rotate the scroll wheel to “o” and press the scroll wheel.

on

-

Beurer GL50 evo mg/dL 15

Setting the timer

3

You can set a timer on the blood glucose monitor. An acoustic signal sounds when the timer
elapses. To set a timer, proceed as follows:

1. Switch on the blood glucose monitor by briefly pressing and holding the scroll wheel.

2. Rotate the scroll wheel until the arrow is pointing towards “settings”, then press the scroll

wheel to confirm.

3. Rotate the scroll wheel until the arrow is pointing towards “timer”, then press the scroll wheel.

4. Press the scroll wheel. Rotate the scroll wheel until the hour is marked, then press the scroll

wheel. Now set your desired timer hour by rotating the scroll wheel and press the scroll
wheel to confirm.

5. Use the same procedure to set the timer minute.

6. In order to start the timer, rotate the scroll wheel to “start” and press the scroll wheel.

Switch Bluetooth® on/o

4

You can switch on Bluetooth® on the blood glucose monitor. Data transfer with Bluetooth® is
only possible with the optinal Bluetooth® adapter.

1. Switch on the blood glucose monitor by briefly pressing and holding the scroll wheel.

2. Rotate the scroll wheel until the arrow is pointing towards “settings”, then press the scroll
wheel.

3. Rotate the scroll wheel until the arrow is pointing towards “bluetooth on/o”, then press
the scroll wheel.

4. Rotate the scroll wheel until the arrow is pointing towards “bluetooth on”, then press the
scroll wheel. Bluetooth® is now switched on.

Switching the acoustic signal on/o

5

On the blood glucose monitor, you can switch on the acoustic signal, switch o the acoustic
signal or set a result beep.

1. Switch on the blood glucose monitor by briefly pressing and holding the scroll wheel.

2. Rotate the scroll wheel until the arrow is pointing towards “settings”, then press the scroll
wheel.

3. Rotate the scroll wheel until the arrow is pointing towards “beep on/o”, then press the
scroll wheel.

4. Use the scroll wheel to select your desired setting (beep on, beep o or result beep) and
confirm by pressing the scroll wheel.

Note

The result beep will feedback the measurement value as beep signals.
Example: Measurement value 103

start signal
beepbeep

The beep signals will be repeated 2 times and can be interrupted by rotating the scroll wheel.

number 1
short beep

number 2
long beep (for 0)

number 3
3 x short beep

16 Beurer GL50 evo mg/dL

Switching the ketone warning on/o

6

On the blood glucose monitor, you can switch a ketone warning on and o.

1. Switch on the blood glucose monitor by briefly pressing and holding the scroll wheel.

2. Rotate the scroll wheel until the arrow is pointing towards „settings“, then press the scroll
wheel.

3. Rotate the scroll wheel until the arrow is pointing towards „ketone on/o“, then press the
scroll wheel.

4. Use the scroll wheel to select your desired setting (warning on or warning o) and confirm
by pressing the scroll wheel.

Deleting measured values

7

On the blood glucose monitor, you can delete individual saved values or all saved values at
once.

1. Switch on the blood glucose monitor by briefly pressing and holding the scroll wheel.

2. Rotate the scroll wheel until the arrow is pointing towards „settings“, then press the scroll
wheel.

3. Rotate the scroll wheel until the arrow is pointing towards „delete values“, then press the
scroll wheel.

4. If you wish to delete all values, select „delete all values“ and press the scroll wheel twice
to confirm. If you wish to delete individual values, select „delete value“ and press the scroll
wheel. You can now use the scroll wheel to navigate through the individual values and press
the scroll wheel to delete the displayed values individually.

Rotating the display

8

You can rotate the display on the blood glucose monitor.

1. Switch on the blood glucose monitor by briefly pressing and holding the scroll wheel.

2. Rotate the scroll wheel until the arrow is pointing towards „settings“, then press the scroll
wheel.

3. Rotate the scroll wheel until the arrow is pointing towards „turn display“, then press the
scroll wheel.

Selecting the menu language

9

The following menu languages are available: German, English, French, Italian, Spanish and
Turkish.

1. Switch on the blood glucose monitor by briefly pressing and holding the scroll wheel.

2. Rotate the scroll wheel until the arrow is pointing towards „settings“, then press the scroll
wheel.

3. Rotate the scroll wheel until the arrow is pointing towards „language“, then press the sc
roll wheel.

4. Use the scroll wheel to select your desired menu language and confirm by pressing the
scroll wheel.

Beurer GL50 evo mg/dL 17

-

5 taking measurements

Warning

• If the protective disc on a lancet needle has already been removed, do not use the lancet needle.

• If you drop the lancing device with an inserted lancet needle, carefully pick it up and dispose of
the lancet.

Important

•

Use the lancing device only with lancet needles from the same manufacturer. Using other lancet

needles may prevent the lancing device from working properly.

•

If you are using a third-party lancing device, please read the accompanying Instructions for use.

5.1 Preparing to take a blood sample

Choose a part of the body from which to take a blood sample

1

The lancing device is intended for taking blood samples from the fingertip or other body parts
such as the palm of the hand, forearm or upper arm. We recommend taking blood samples
from the fingertip. To make the procedure as painless as possible, do not take samples directly
from the centre of the fingertip, but slightly to either side.

Warning

•

In the event of suspected hypoglycaemia: take blood from the fingertip only. Reason:

changes to blood glucose levels can be detected quickly in blood samples taken from the
fingertip.

•

Blood samples from the fingertip and samples taken from another body part (AST) may pro-

duce completely dierent results. It is essential to seek medical advice before taking meas­urements from other body parts.

Prepare all parts

2

Prepare the following items: GL50 evo blood glucose monitor (A), test strip box or test strips
in film packaging (D) and sterile lancet needles (E). You will also need the AST cap for meas
urements on other parts of the body (B).
Make sure that the sliding switch for on/o is in the “on” position .

Wash your hands

3

Wash your hands with soap and warm water before taking a blood sample. This not only en
sures optimal hygiene but also encourages good blood circulation at the puncture area on the
finger. Dry your hands carefully. Also ensure that the puncture area is hygienically clean when
taking blood samples from other body parts (AST).

Warning

If you have used alcohol for cleaning, ensure that the area has fully dried prior to measuring.

-

-

18 Beurer GL50 evo mg/dL

5.2 Preparing the lancing device for taking a sample

Remove cap

1

Securely hold the monitor with one hand on the lancing device cover.
With your other hand, remove the cap from the lancing device.

Insert lancet needle

2

Insert a sterile lancet needle into the lancing device.

Push firmly on the lancet until it audibly engages and it cannot be
pushed further into the holder.

Remove the protective lancet disc

3

Remove the protective lancet disc by turning clockwise. Retain the
protective disc for the safe disposal of the used lancet needle after
taking a blood sample.

Select cap and attach.

4

You need to use a dierent cap depending on the area from which you
take the sample:

- Fingertip: Cap (black)

- Other body parts: AST cap (transparent)

Warning

Do not use the AST cap to take blood samples from the finger.

Place the selected cap on the lancing device. Make sure that the curved
part of the cap fits on the curved part of the lancing device. Press firmly
on the cap until it audibly engages.

Beurer GL50 evo mg/dL 19

Select the penetration depth

5

You can set seven di erent penetration depths on the lancing device
using the dial with raised bars. The length of the bar represents the re­quired penetration depth.

• 1 to 2: soft or thin skin

• 3 to 5: normal skin

• 6 to 7: thick or callous skin
Turn the dial until the required bar is in the centre of the black marking.

Tension the lancing device

6

Pull the slider in the direction of the arrow (to the right in the image) un­til it stops and then release. The slider automatically springs back into
position. The lancing device is now tensioned.

5.3 Taking a blood sample and measuring the glucose level

Warning

• Change the puncture area each time you take a measurement, e.g. use a di erent fi nger or the other

hand. Repeatedly using the same area may cause infl ammation or scarring.

• If the cap is not in place, there is a risk of injury from the exposed lancet.

• Do not squeeze your fi nger to obtain a larger drop of blood. If squeezed, the blood is diluted with

tissue fl uid and this may lead to an incorrect result.

• Please note that insu cient blood circulation at the puncture area, e.g. caused by cold temperatures

or illness, can lead to incorrect results.

Important

Do not apply any blood samples or control solutions to the test strip before inserting it in the monitor.

Prepare the test strip

1

Take a test strip from the box/fi lm packaging and immediately close it again. Use the test strip
within three minutes of removal.

Insert test strip

2

Take the monitor in your left hand. Hold the blood glu­cose monitor so that the display is facing you and the
Beurer logo is on the right-hand side.

Insert the test strip into the slot on the rear end of the
blood glucose monitor with the contacts fi rst. Make
sure that the front of the test strip is facing you. You can
touch any part of the test strip with clean, dry hands.

20 Beurer GL50 evo mg/dL

The device switches on automatically

3

After you have inserted the test strip, the blood glucose
monitor switches on automatically and the Beurer logo,
the date and the time are briefly displayed.
The blood glucose monitor is ready to measure as soon
as the test strip animation is displayed.

Warning

If segments of the display are missing, stop using the
device and immediately contact customer services.

Lancing to take a blood sample

4

The lancing device can now be used to take a blood sample.
Make sure that the blood remains as a droplet and is not spread.

- Blood sample from the fingertip

Firmly position the lancing device slightly to the side of the centre
of the fingertip. Press the trigger. Remove the lancing device from
the finger. A round drop of blood of at least 0.6 microlitres (cor­responds to approx. 1.4 mm, original size: ) must have formed.

- Blood sample from other body parts (AST)

Find a soft area away from any bones, without any visible blood
vessels and with as little hair as possible. Warm the penetration
area to enhance circulation by gently massaging the area. Press
and hold the lancing device against the penetration area for a few
seconds and then press the trigger. Continue to hold the lancing
device against the skin until a round drop of blood has formed un­der the cap. Maintain the pressure until the drop of blood reaches
a size of at least 0.6 microlitres (corresponds to approx. 1.4 mm,
original size: ). Carefully remove the lancing device from the skin.

Beurer GL50 evo mg/dL 21

Note

OK

Only take blood from other areas of the body at the following times:

•

On an empty stomach (more than two hours after most recent meal).

•

At least two hours after administration of insulin.

•

At least two hours after physical activity.

P

lease also note the following:

•

If the blood glucose test results do not match how you feel, carry out another test using blood

from your fingertip.

•

DO NOT change your treatment purely on the basis of a measurement that was carried out

using blood taken from an alternative area. Carry out another test with blood from your fin­gertip in order to confirm the test result.

•

If you often fail to notice that you have a low blood glucose level, carry out a test using blood

from your fingertip.

If necessary, repeat the process

5

If you do not obtain sucient blood, repeat the lancing process with a greater penetration
depth in a dierent area.

Apply blood to the test strip

6

Turn the monitor by 180°. Hold the blood input gap (at the tip of
the test strip) to the drops of blood until the gap is completely
filled and the monitor in the display starts counting backwards.
Do not press the penetration area (fingertip or other body parts)
to the test strip. The blood must not be spread. The blood is
sucked into the gap.

Note

Error message “Error2” appears on the display if the gap was
not correctly and suciently filled with blood. Repeat the meas­urement using a new test strip and a greater penetration depth.

Note

•

Do not add blood later if the device does not start measurement. Remove the test strip and end

this test. Use a new test strip.

•

If the test strip has already been inserted into the device but no blood is added to the test strip

within two minutes, the device switches itself o. Briefly remove the test strip and reinsert it so that
the device automatically switches itself back on.

•

Contact Customer Services if you are unable to cover the test strip in blood correctly.

22 Beurer GL50 evo mg/dL

5.4 Reading the result and labelling measurements

Read the result

As soon as the blood input gap is filled with sucient
blood, the device performs the blood glucose measure­ment. The blood glucose monitor counts down for ap­prox. five seconds. The measured result is then shown
on the display.

Read your measured value. Check again that you have read the result correctly. The underline must be
below the measured value, otherwise you need to turn the monitor by 180°. For explanations of and
measures regarding the measured values, see “5.6 Evaluating measured blood glucose values” on
page 23. If an error message is displayed, read chapter “8. What if there are problems?” on page 33.

Label measured value

You have the following options for labelling measured values.

Before a meal

After a meal

General label (e.g. after exercising)

Labelling measured values enables you, your GP or diabetes consultant to better monitor your blood
glucose values. For example, you can display the average values of all measurements taken before
a meal.

To label a measurement, proceed as follows:

Following the measurement, the display will briefly show the measured value and then the

1

menu in which you can mark the measured value. It is not possible to mark the measured
value afterwards.

Select the desired marking using the scroll wheel.

2

O

No marking
Before a meal
After a meal

General label
Confirm the marking by pressing the scroll wheel.
The selected marking is now allocated to the measured value and saved to the memory.

The selected label is stored in the memory of the device when it is switched o.

3

Beurer GL50 evo mg/dL 23

5.5. Post-processing and disposal

Remove test strip

1

Remove the test strip from the device and carefully dispose of it in
accordance with the applicable regulations to avoid infecting others.

Remove cap

2

Carefully remove the cap from the lancing device.

Stick protective disc on needle

3

Place the retained protective disc flat on a hard surface. Stick the
tip of the needle into the protective disc (image 1) so the needle is
covered (image 2).

Image 1 Image 2

Remove and dispose of lancet needle

4

Press the trigger again so that you can grip the shaft. Carefully remove
the lancet needle from the lancing device and dispose of the lancet
in a puncture-proof container.
Carefully dispose of all blood samples and materials that you have
come into contact with. This prevents injuries and the infection of
others.

Replace cap

5

Place the cap back on the device. Turn the clip back over the cap.

5.6 Evaluating measured blood glucose values

Your blood glucose monitor can process values between 20 and 630 mg/dL. The “Lo” warning is
displayed for measured results below 20 mg/dL. The “ ” warning is displayed for measured results
above 630 mg/dL.

24 Beurer GL50 evo mg/dL

Warning

•

If you suspect that the blood glucose results are incorrect, first repeat the test and, if applicable,

perform a functional test using control solution. Seek medical advice if dubious results persist.

• Seek medical attention immediately if your symptoms do not correspond to your measured blood
glucose values and you have followed all instructions for the Beurer GL50 evo blood glucose monitor.

•

Do not ignore symptoms of too high/low blood glucose levels. Always seek medical attention!

Blood

glucose

The following table provides a classification of blood glucose values according to the diabetes guide­lines of the German Diabetes Association (Deutsche Diabetes Gesellschaft – DDG).

Time of blood glucose
measurement

Normal
blood glucose

Suspicion
of diabetes

Diabetes

values

On an empty stomach

(

Plasma, venous)

Below 100 mg/dL 100 – 125 mg/dL ≥ 126 mg/dL

Two hours after a meal Below 140 mg/dL 140 – 199 mg/dL ≥ 200 mg/dL

Source: German Diabetes Association (Deutsche Diabetes Gesellschaft – DDG) 2013

Critical blood glucose values

Display Blood glucose Actions

Very low blood glucose level

Seek medical attention immedi­ately.

Below 20 mg/dL

Low blood glucose level

Have a suitable snack. Follow your
GP’s instructions.

Below 70 mg/dL

High blood glucose level

If this high value persists two hours
after your last meal, this may indi-

•

On empty stomach, over

100

mg/dL

•

Two hours after a meal, over

cate hyperglycaemia. Seek medi­cal attention to coordinate any
measures, if applicable.

140 mg/dL

High blood glucose level,
possibly ketones

Perform a ketone test. For this pur­pose, seek medical attention.

Above 240 mg/dL

Very high blood glucose level

Take another measurement using a
new test strip. If the display is the

Above 630 mg/dL

same as before: seek medical at­tention immediately.

Beurer GL50 evo mg/dL 25

5.7 Functional check using control solution

The control solution is used to test the entire blood glucose monitoring system. This helps to deter­mine whether the monitor and the test strips are working optimally together and whether the test is
being performed correctly.
Perform the control solution test if you suspect that the blood glucose monitor and/or the test strips
could be faulty or if you have repeatedly measured unusual blood glucose values. Also test the blood
glucose monitor if it has been dropped or is damaged. The control solution is available separately.
Please observe the additional notes in the instructions for using the control solution for the test.

Important

•

Do not use third-party control solution. Correct functioning of your monitor can only be tested using

Beurer LEVEL3 + LEVEL4 control solutions.

•

Control solution measurements: When using the device, specialist personnel must follow statutory

guidelines.

•

Do not apply any blood samples or control solutions to the test strip before inserting it in the moni-

tor.

Performing a functional test using control solution

Warning

To obtain correct results, the monitor, test strip and control solution must be the same temperature.
For the “Functional test using control solution”, the temperature is to be between 20 °C and 26 °C.

Insert test strip

1

Hold the blood glucose monitor so that the display is facing you. Insert a test strip into the slot
on the blood glucose monitor with the contacts first. Make sure that the front of the test strip
is facing you (see 3.4 “Test strips” on page 13 ).

Activate control mode

2

Once you have inserted the test strip, the blood glucose monitor switches on automatically
and briefly shows the initial display. After the initial display has disappeared, rotate the scroll
wheel until “CONTROL” appears at the top of the animation display.

IMPORTANT: Control solutions and blood react to temperature influences in dierent ways.
It is therefore of vital importance that control solution measurement is always performed in
control solution mode. If this mode is not used, results may be obtained that are outside the
target range.

26 Beurer GL50 evo mg/dL

Drip control solution on surface

3

Choose a clean surface to carry out the func
tional test correctly. Shake the control solution
well before use. Undo the cap and press two
drops next to each other on the clean surface
without touching them. Use the second drop
for the measurement.

Note

Never apply the control solution straight from the bottle to a test strip. Reason: The remain
ing solution in the bottle will be contaminated if the top of the bottle comes into contact with
the test strip.

Apply drop to the test strip

4

Hold the input gap (at the tip of the test strip) to the drop of control solution until the gap
is completely filled. When the gap is suciently filled with solution, the device performs a
measurement. The device counts down for approx. five seconds. The measured result is then
shown on the display.

Evaluate result of functional test

5

Check whether the result is within the specified range of results for the control solution. This
range of results is printed on the test strip box or the test strip packaging.

Expected results

At room temperature, the measured values from the test using the control solution should be within
the range printed on the test strip box in approx. 95% of all tests.

Warning

The result range printed on the test strip box applies only to the control solution. This is not a rec
ommended value for your blood glucose level.

-

-

-

Beurer GL50 evo mg/dL 27

If measured values are outside the specified range, check the following possible causes:

Cause Action

•

The first drop of control solution was not dis-

posed of.

•

The tip of the bottle was not cleaned correct-

ly.

•

The bottle was not shaken well enough.

Control solution or test strip is contaminated.

The control solution, test strip or blood glucose
monitor is too warm or too cold.

The test strips and control solution were kept at
a temperature and humidity outside the speci­fied range.

Damaged test strips. Possible causes include

•

Test strips were exposed to fresh air for too

long.

•

Test strip box was not closed completely.

Test strip or control solution has expired.

Functional test using control solution was per
formed incorrectly.

Problem with the blood glucose monitor Contact Customer Services.

Warning

If you repeatedly obtain measured values outside the specified range when using control solution, dis­continue using the system to measure your blood glucose level. Contact Customer Services.

Rectify the cause and repeat the test.

Repeat the test using a new bottle of control
solution and/or new test strip.

Bring the control solution, test strips and blood
glucose monitor to room temperature (+20°C to
+26°C) and repeat the test.

Repeat the test using new, correctly stored ac­cessories (test strips and control solution).

Repeat the test using a new test strip and/or a
new box of correctly stored test strips.

Repeat the test using a new bottle of control so­lution and/or new test strip from a new box.

-

Repeat the test and follow the instructions.

28 Beurer GL50 evo mg/dL

6 measurement memory

For each measurement, your blood glucose value is automatically saved with the date and time unless
“CONTROL” was activated for a blood glucose measurement using control solution.
The memory can store a maximum of 480 measured values. If the memory is full, the oldest value is
replaced by the most recent value. You can call up every individual measured blood glucose value.
You can also calculate and display the average value for the last 7, 14, 30 and 90 days.

Note

•

If you have already saved measured values and you reset the date, the average values are calculated

as from the new period.

•

“No saved values” indicates an empty memory for measured values. Press the scroll wheel button

to switch o the device.

6.1 Displaying individual values

The most recent measured value is displayed first, and the oldest last. The date and time are also
displayed on the monitor at the same time.

Switch on the blood glucose monitor by briefly pressing and holding the scroll wheel.

1

Rotate the scroll wheel until the arrow is pointing towards “All values”, then press the scroll

2

wheel to confirm.

You can now rotate the scroll wheel to navigate between the saved individual values.

3

You can cancel the process at any time. To do so long, press the scroll wheel or wait until

4

the device switches itself o automatically after two minutes.

Beurer GL50 evo mg/dL 29

6.2 Displaying average blood glucose values

You can display the average measured blood glucose value from the last 7, 14, 30 and 90 days.

Switch on the blood glucose monitor by briefly pressing and holding the scroll wheel.

1

Rotate the scroll wheel until the arrow is pointing towards “Average value”, then press the

2

scroll wheel to confirm.

Use the scroll wheel to select the desired marking (

3

play the average values.

Press the scroll wheel to display the respective quantity of measured values in the markings.

4

O, , or

) for which you want to dis-

6.3 Evaluating measured values on a PC

The GL50 evo monitor features an integrated plug-in USB stick. The blood glucose evaluation soft­ware GlucoMemory is installed on the USB stick (for position of the USB connection, see page 11).
The GL50 evo is compatible with Diabass and SiDiary.
The blood glucose evaluation software GlucoMemory is pre-installed on the monitor’s USB stick. You
do not need to install the software locally on a PC. This software enables you to evaluate your meas­ured values, add insulin doses and print or export your results as a PDF or CSV file. The software helps
you and your GP to better monitor your blood glucose level.
For more information, please read software manual for the GlucoMemory software. Including all the
necessary information and a detailed description of how to use the software (in English and German).

Note

•

An eective evaluation is only possible if you have set the date and time correctly (see “Setting the

date and time” on page 15).

•

Measurements cannot be taken while the USB stick is connected to a PC.

•

The measurements remain saved on the blood glucose monitor when the USB stick is removed from

the PC.

•

It is not possible to save software entries on the USB stick; Values are read only.

30 Beurer GL50 evo mg/dL

Evaluating measured values on the PC

The blood glucose monitor must be switched o.

1

Insert the monitor’s USB connector into a free USB
port on your PC. In the event that the measuring
device is not recognised, please try using another
active USB point.

“USB connected” is shown on the display of the

2

blood glucose monitor. Saved data can now be
viewed on your PC.

See the information on evaluating values in the software manual.

3

Alternatively, you can transfer the measured values to your smartphone tablet using the optional Blu­etooth® adapter. You can download the Beurer HealthManager App and Software free of charge. For
further, information please consult the instructions for use of the Bluetooth

®

adapter.

7 storing, maintaining and disinfecting the device

Storing

Keep the Beurer
do not expose it to direct sunlight

Note

•

Do not store the device, test strips and control solution in your vehicle, in the bathroom or in a cool-

ing appliance.

•

Retain these Instructions for use.

•

Remove the batteries if you do not intend to use the device for a prolonged period of time.

•

Only clean the device when it is switched o.

7.1 Maintenance

Clean the surface of the device using a soft, slightly damp cloth (water or a mild cleaning solution).
Dry the device using a lint-free cloth.
Make sure that moisture does not enter the test strip insertion slot. Do not spray cleaning agent di­rectly on the device. Do not submerge the device in water or any other fluids and make sure that no
fluids can enter the device.

7.2 Disinfection

Please comply with the generally applicable guidelines on disinfection when using the device on dif­ferent persons. Do not submerge the device in disinfection solutions or any other fluids and make
sure that no fluids can enter the device.

GL50 evo

blood glucose monitor in the case supplied after each measurement

.

and

The cap on the integrated lancing device can be disinfected with 70 – 75% alcohol. Disinfect the cap
at least once a week and submerge the cap in alcohol for approx. 10 minutes. Allow the cap to air dry.

Beurer GL50 evo mg/dL 31

Note

The blood glucose monitor is made of precision components. The accuracy of the measurements
and service life of the device depend on its careful handling:

•

Protect the device from impacts and do not drop it.

•

Protect the device from damaging factors such as moisture, dirt, dust, blood, control solution or

water, marked temperature fluctuations, direct sunlight and extreme cold.

•

Do not use the device in the vicinity of strong electromagnetic fields, radio systems or mobile

telephones.

8 What if there are problems?

Display messages on batteries and blood glucose measurement

No. Cause Solution

Empty
battery

High
temperature

Low
temperature

Strip
error

Batteries discharged.

Very high glucose level
(> 630mg/dL)

Very low glucose level
(< 20mg/dL)

Used or contaminated test strip
inserted.

Charge the blood glucose monitor via the USB
interface.

Temperature of the measuring environment,
blood glucose monitor or test strip above the
permitted range.

Repeat the test using a new test strip as
soon as the measuring environment, blood
glucose monitor and test strips have reached
room temperature (+20°C to +26°C).

Low temperature Temperature of the measur­ing environment, blood glucose monitor or test
strip below the permitted range.

Repeat the test using a new test strip as soon
as the measuring environment, blood gluco­se monitor and test strips have reached room
temperature (+20°C to +26°C).

Insert unused test strip that has not expired.
Repeat the blood glucose measurement.

Error 1 System error Remove batteries, reinsert batteries.

Error 2 Insucient amount of blood on

the test strip.

32 Beurer GL50 evo mg/dL

Contact our customer service if the problem
persists.

Repeat the measurement using a new test
strip.

Error 5 System error Remove batteries, reinsert batteries.

Unknown error messages. Remove batteries, reinsert batteries. Contact

Problem: device does not switch on

Cause Solution

Battery empty. Charge the blood glucose monitor via the USB

Test strip inserted incorrectly or not completely.

Device faulty. Contact Customer Services.

The sliding switch is in the “o” position To activate the device set the sliding switch to

Problem: the test does not start after inserting the test strip into the device and applying
blood.

Cause Solution

Insucient blood or test strip not filled cor
rectly.

Faulty test strip.

Blood was applied while the device was
switched o.

The basic settings of the device have been
changed and these changes were not com
pleted (see “4.2 Making and changing basic
settings” on page 15).

Device faulty. Contact Customer Services.

Contact our customer service if the problem
persists.

Customer Services if the problem persists.

port on a computer.

Firmly insert the test strip into the slot on the
device with the contacts first. Make sure that
the front of the test strip is facing you (see “Test
strip” on page 13).

setting “on”

-

Repeat test using a new test strip and a larger
drop of blood.

Repeat the test using a new test strip.

Repeat

the test using a new test

apply blood when finger is shown on display.

Remove the test strip and press the “scroll

-

wheel” button until the device is switched o.

strip and only

Beurer GL50 evo mg/dL 33

9 technical specifications

Dimensions (L x W x H) 123 x 29 x 16 mm
Weight 36 g
Power supply Lithium-ion rechargeable battery, 160 mAh
Battery life
Measured value memory 480 measured values with date/time

Average values for 7, 14, 30, 90 days
Automatic switch-o Two minutes after last actuation
Storage/

transport temperature
Operating ranges Temperature: +10°C – +40°C

Measuring range, glucose Glucose: 20 – 630 mg/dL
Blood sample capillary whole blood, venous whole blood
Required volume of blood 0.6 microlitres
Blood glucose measuring duration Approx. 5 seconds
Calibration Plasma
Test procedure Amperometric bio sensor
Usage Suitable for self-testing
System function test Each time device is switched on

EMC

This device complies with the European standard EN 61326 and is subject to specific precautions
with regard to electromagnetic compatibility. Please note that portable and mobile HF communica
tion systems may interfere with this unit. For more details, please contact Customer Services at the
address indicated.

Test strip functionality

Test strips enable a quantitative measurement of the glucose level in fresh whole blood. When the gap
for taking blood comes into contact with a drop of blood, it is automatically filled by simple capillary
action. The blood is sucked into the absorbing gap on the test strip and the blood glucose monitor
measures the blood glucose level in the blood.
The test is based on the measurement of an electric current that is generated by the chemical reaction
of the glucose with the enzyme glucose dehydrogenase (Aspergillus oryzae) on the strip.
During the reaction, a mediator transports electrons through the electrode surface and so gener­ates a current.
The blood glucose monitor analyses this current. The current flow is proportional to the glucose con­tent in the blood sample. The results are shown on the blood glucose monitor display.

150 measurements with fully-charged rechargeable battery

Data retained when batteries are changed

Temperature: +2°C – +30°C
Relative humidity: < 90%

Relative humidity: < 90% non-condensing

-

34 Beurer GL50 evo mg/dL

Only a small amount of blood is required (0.6 microlitres) and measurement takes approx. five sec­onds. The test strip detects blood glucose values from 20 to 630 mg/dL.

Chemical components of the test strip sensor

•

FAD glucose dehydrogenase 6%

•

Potassium ferricyanide 56%

•

Non-reactive components 38%

Control solution functionality

The control solution contains a fixed amount of glucose that reacts with the test strip. A test with
control solution is similar to a blood test. However, control solution is used instead of blood. The
measured result using control solution must be within the result range. This range is printed on each
test strip box.

Chemical composition of the control solution

The control solution is a red solution with the following D-glucose level (in percentage shares):

Ingredients Control solution LEVEL 3 Control solution LEVEL 4
D-glucose 0.14% 0.37%
Non-reactive components 99.86% 99.63%

Standards

The Beurer GL50 evo blood glucose monitor complies with the European standards: IVD (98/79/EC)
and MDD (93/42/EC).

10 comparison of measured values With laboratory value

Precision

Three lots of the GL50 evo blood glucose test strips have been tested to assess the precision of the
GL50 evo blood glucose measuring system. This includes a repeat assessment using venous blood
and a laboratory precision assessment using the control material. The blood glucose content of the
venous blood samples ranges from 42.7 to 418.0 mg/dL and control material from three concent
rations is used.

-

Beurer GL50 evo mg/dL 35

Results of the repeat precision measurements

Sample Venous blood

(mg/dL)

1 42,7 36,0 2,0 5,6

2 62,0 59,2 3,5 5,9

3 120,5 127,1 4,1 3,2

4 201,0 213,8 6,7 3,1

5 316,5 329,9 10,1 3,1

6 418,0 433,5 14,5 3,3

Results of the intermediate precision measurement

Sample Control material

(mg/dL)

1 70,0 71,3 1,0 1,4

2 135,6 136,3 1,4 1,1

3 351,5 350,8 2,8 0,8

System accuracy

The GL50 evo blood glucose monitor in comparison with the YSI.
Three lots of GL50 evo blood glucose test strips have been tested to assess the system accuracy of
the GL50 evo blood glucose measuring system and to compare it with the reference method in which
capillary whole blood concentrations of 34.4 to 442.8 mg/dL have been used.

Result of the system accuracy for glucose concentrations <100 mg/dL (<5.55 mmol/L)

Within ±5 mg/dL
(Within ±0.28 mmol/L)

55/180 (30,6%) 111/180 (61,7%) 175/180 (97,2%)

Grand mean
value (mg/dL)

Grand mean
value (mg/dL)

Within ±10 mg/dL
(Within ±0.56 mmol/L)

Pooled standard de­viation

Pooled standard
deviation

Within ±15 mg/dL
(Within ±0.83 mmol/L)

Pooled coecient
ofvariation (%)

Pooled coecient
of variation (%)

Results of the system accuracy for glucose concentrations ≥100 mg/dL (≥5.55 mmol/L)

Within ±5% Within ±10% Within ±15%

220/438 (50,2%) 357/438 (81,5%) 422/438 (96,3%)

36 Beurer GL50 evo mg/dL

Results of the system accuracy for combined glucose concentrations between 34.4 mg/dL
(1.9 mmol/L) and 442.8 mg/dL (24.6 mmol/L).

Within ±15 mg/dL or ±15%
(Within ±0.83 mmol/L or ±15%)

597/618 (96,6%)

In comparison to the YSI, the GL50 evo met the EN ISO 15197:2013 standard, whereby 95% of the
blood glucose values measured have to fall within the following zones: either ±0.83 mmol/L (±15 mg/
dL) of the measured average value when using the reference measuring procedure for blood glucose
concentrations <100 mg/dL (<5.55 mmol/L) or ±15% for blood glucose concentrations of ≥100 mg/
dL (≥5.55 mmol/L). 99% of the individual measured blood glucose values must fall within zones A
and B of the Consensus Error Grid (CEG) for diabetes type 1.

Performance evaluation by the user

A study to assess the glucose values of blood samples of capillary blood from the fingertips, which
were obtained from 103 individuals that had no special training, produced the following results:

96.7% within ±15 mg/dL (±0.83 mmol/L) and 95.9% within ±15% of the values obtained in the me

dical laboratory with glucose concentrations of at least 100 mg/dL (5.55 mmol/L).

You will find further details and information regarding blood glucose results and various technologies
in generally relevant specialist medical literature.

-

11 usage limits for specialist personnel from the healthcare

sector:

1. If the patient shows the following symptoms, it may be the case that no correct values can be

displayed:

• Acute dehydration

• Acute hypotension (low blood pressure)

• Shock

• Hyperosmolar hyperglycaemic condition (with or without ketosis)

2. Lipaemic samples: cholesterol levels up to 500 mg/dL and triglycerid levels up to 1000 mg/dL do

not influence the results. Severely lipaemic blood samples were not tested with the Beurer GL50
evo blood glucose monitor; therefore, using the device with these samples is not recommended.

3. In the case of severely ill patients, blood glucose monitors for home use should not be used.

4. The influence of interfering substances on the measurements depends on the concentration in

the blood. The maximum concentrations of certain substances listed below do not significantly in­fluence the measurements.

Beurer GL50 evo mg/dL 37

Influence

Blood glucose

Concentration
of tested substances

Acetaminophen 7 mg/dL (0.46 mmol/L) 8.1 5.3%

Ascorbic acid 4 mg/dL (0.26 mmol/L) 6.6 5.8%

Bilirubin 1.2 mg/dL (0.02 mmol/L) 0.2 5.2%

Cholesterol 500 mg/dL (12.9 mmol/L) 9.6 7.2%

Creatinine 30 mg/dL ( 2.7 mmol/L) 1.3 1.6%

Dopamine 2.2 mg/dL (0.14 mmol/L) 8.0 3.2%

Galactose 20 mg/dL (1.11 mmol/L) 6.2 2.5%

Gentisic acid 7 mg/dL (0.45 mmol/L) 9.8 3.6%

Glutathione 1 mg/dL (0.03 mmol/L) 3.7 6.5%

Haemoglobin 300 mg/dL (0.05 mmol/L) 3.8 5.2%

Ibuprofen 50 mg/dL (2.43 mmol/L) 3.9 2.7%

Icodextrin 5 mg/dL (0.003 mmol/L) 3.6 1.4%

L-dopa 2 mg/dL (0.10 mmol/L) 10.0 8.7%

Maltose 20 mg/dL (0.56 mmol/L) 6.5 4.2%

Methyldopa 4 mg/dL (0.19 mmol/L) 9.0 3.7%

Pralidoxime iodide 5 mg/dL (0.14 mmol/L) 2.8 3.3%

Sodium salicylate 40 mg/dL (2.5 mmol/L) 4.3 2.2%

Tolbutamide 100 mg/dL (3.70 mmol/L) 1.4 2.3%

Tolazamide 2.5 mg/dL (0.08 mmol/L) 2.5 3.6%

Triglyceride 300 mg/dL (3.39 mmol/L) 4.2 8.4%

Uric acid 20 mg/dL (1.2 mmol/L) 7.2 4.0%

Xylose 9.5 mg/dL (0.63 mmol/L) 7.0 7.5%

value

50-100 mg/dL
(2.8-5.6 mmol/L)

250-350 mg/dL
(13.9-19.4
mmol/L)

12 guarantee and customer service

Warranty

We oer a 3-year product warranty against material and production faults.
The warranty does not cover:

•

Damage due to improper operation

•

Wearing parts

•

Deficiencies already known to the customer upon purchase

•

Cases of personal negligence on the part of the customer

•

Outside interference
The warranty does not aect the customer’s statutory rights. To assert a warranty claim within the
warranty period, the customer must provide proof of purchase. The warranty claim must be submit­ted within a period of 3 years from the date of purchase to BEURER GmbH, Söflinger Straße 218,
D-89077 Ulm (Germany). In the event of a warranty claim, the customer reserves the right to have the
goods repaired at our own workshop or at a workshop authorised by us. No further rights are granted
to the customer (on the basis of the warranty).

Customer service address

Please contact our customer service if you have any questions: Please refer to the address list enc
losed for our customer service address.

OUR COMMITMENT TO YOU: We aim to satisfy you by providing high-quality medical products
and the best customer service. Please contact our customer service if you are not entirely satisfied
with the product.

-

Beurer GL50 evo mg/dL 39

GL50_mg/dL_1014_GB Subject to errors and changes