SCAN G-427B User manual

SCAN Blood Glucose Meter
Model: G-427B
Distributed by CoachCare
97 3rd Avenue, New York, NY 10003 USA
Made in China
SCAN blood glucose
meter
User manual
Model Number: G-427B

important safety instructionS
The meter and lancing device are for single patient use.
Do not share them with anyone including other family
member! Do not use on multiple patients!
All parts of the kit are considered biohazardous and can
potentially transmit infectious diseases even after you
have performed cleaning and disinfection.
 Changes or modifications not expressly approved by the
party responsible for compliance could void the user’s
authority to operate the equipment.
read this before using
DANGER - Misuse of this electrical device can cause
electrocution, burns, fire and other HAZARDS.
Basic safety precautions should always be taken, including
all those listed below.
Close supervision is necessary when equipment is used by,
on, or near children, handicapped persons or disabled
persons.
The following basic safety notice should always be taken:
1. Do not place the device in liquid, nor put it where it could
fall into liquid.
2. The following basic safety notice should always be taken.
3. Use the device only for the intended use described in this
manual.
4. Do not use adjunct which are not supplied by the
producer.
5. Do not let the device come into contact with surfaces
which are too hot to touch.
6. Do not use the device where aerosol sprays are being
used.
7. Do not use the device if it is not working properly, or if it
has been damaged.
8. Read through the manual, practice the test, and then use
the product to test your blood glucose. Do all quality
control checks as directed and consult with a diabetes
expert.
KEEP THE INSTRUCTIONS IN A SAFE PLACE.
1 2

table of contents
BEFORE YOU BEGIN __________________________________ 5
INTRODUCTION TO THE SYSTEM ______________________ 6
About Your System _______________________________ 6
Test Principles ___________________________________ 8
CONTENTS OF THE KIT _______________________________ 9
Blood Glucose Meter ____________________________ 10
Meter Screen Display Message ___________________ 11
Test Strip_______________________________________ 12
SETTING THE METER AND DELETING THE MEMORY ____ 13
Setting the Date and Time________________________ 13
Setting the Unit (mg/dL or mmol/L)_______________ 14
Deleting the Memory ____________________________ 14
The Two Measuring Modes _______________________ 15
TESTING WITH BLOOD SAMPLE ______________________ 16
Overview of the Lancing Device___________________ 17
Performing a Blood Glucose Test__________________ 20
Control Solution Test ____________________________ 23
Viewing Results on the App and Meter_____________ 25
CARE AND STORAGE FOR YOUR SYSTEM ______________ 27
SPECIFICATIONS ____________________________________30
Display Messages _______________________________ 31
Problems ______________________________________ 32
Performance Characteristics______________________ 33
Electrical and Safety Standards ___________________ 36
FCC Requirements ______________________________36
LIMITATIONS OF USE
The SCAN G-427B Blood Glucose Monitoring System is
not intended for use on neonates.
The SCAN G-427B Blood Glucose Monitoring System is
not intended for use on artery blood, neonates’ serum and
plasma.
The system can be used up to an altitude of 10744 feet.
The following substances at levels greater than normal or
therapeutic levels may cause significant interference
(affect the result by greater than 10%) resulting in an
inaccurate result: ascorbic acid, uric acid, hemoglobin,
acetaminophen, Dopamine, L-dopa, L-dopa and
Tolbutamide etc. These sub- stances do not affect test
results in normal concentration but may affect test results
in high concentration. Do not use haemolysis sample,
icterus sample or high lipemia samples.
 Patients undergoing oxygen therapy may yield falsely
lower results.
Not for use for patients in a hyperglycemic-hyperosmolar
state, with or without ketosis.
Not for use on critically ill patients.
Not to be used for patients who are dehydrated,
hypertensive, hypotensive or in shock.
 Very low (less than 20%) or very high (more than 60%) red
blood cell count (hematocrit) can lead to incorrect test
results. If you do not know your hemarocrit level, please
consult your health care provider.
 High temperature (more than 104°F) and low temperature
(less than 50°F) may lead to incorrect test results.
 High humidity (more than 85%) and low humidity (less than
10%) may lead to incorrect test results.
3 4

before you begin
Installing the Battery
1. Open the battery cover on the back of your meter.
2. If replacing the batteries, please remove the used
batteries.
3. Insert 2 new (AAA) batteries with correct +/- direction.
4. Close the battery cover.
INTRODUCTION TO THE SYSTEM
ABOUT YOUR SYSTEM
Intended Use
The SCAN G-427B Blood Glucose Monitoring System is
comprised of SCAN G-427B Blood Glucose Meter and
SCAN G-427B Blood Glucose Test Strips.
The SCAN G-427B Blood Glucose Monitoring System is
intended to be used for the quantitative measurement of
glucose (sugar) in fresh capillary whole blood samples
drawn from the fingertip. The SCAN G-427B Blood Glucose
Monitoring System is intended to be used by a single
person and should not be shared. It is intended for
self-testing outside the body (in-vitro diagnostic use) by
people with diabetes at home as an aid to monitor the
effectiveness of diabetes control. The SCAN G-427B Blood
Glucose Monitoring System should not be used for the
diagnosis of or screening for diabetes. The SCAN G-427B
Blood Glucose Monitoring System is not for use for
neonates.
Environment Protection – Electrical products
should not be disposed of with household waste.
Please recycle where facilities exist. Check with
your local authority or retailer for recycling advice.
Operate via your Clinic's App with Bluetooth
Download your clinic’s app to your mobile device and follow
in-app instructions to set up your blood glucose meter.
Warnings
The system is intended for use outside the body (in-vitro
diagnostic use). It is for single-patient use. It should be
used only for testing glucose (sugar) and only with fresh
capillary whole blood samples taken from the finger. The
system is intended for use at home. It should not be used
for the diagnosis of diabetes or for the testing of neonates.
The System is intended for self-testing outside the body
(in-vitro diagnostic use) by people with diabetes at home
as an aid to monitor the effectiveness of diabetes control.
Alternative site testing should be done only during steady
state times (when glucose is not changing rapidly).
The G-427B blood glucose Test Strips are for use with the
Blood Glucose Meter to quantitatively measure glucose in
fresh capillary whole blood samples drawn from the
fingertips.
This device is not intended for use in healthcare or
assisted-use settings such as hospitals, physician’s offices,
or long-term care facilities because it has not been
determined to be safe and effective for use in these
settings, including for routine assisted testing or as part of
glycemic control procedures.
Use of this device on multiple patients may lead to
transmission of Human Immunodeficiency Virus (HIV),
Hepatitis C Virus (HCV), Hepatitis B Virus (HBV), or other
bloodborne pathogens.
To prevent malware from damaging products or revealing
patient personal information, it is recommended to install
antivirus software on mobile devices.
 When the following phenomenon happens, the user
should stop using meter and contact customer service:
• The test result of control solution exceeds the range of
vial labeled.
• The meter failure to display relative information;
• The meter does not respond when insert Test Strips;
•The meter damaged severely (eg. Case broken, screen
chalkboard)
TEST PRINCIPLES
The System uses electrochemical methodologies. The
System quantitatively measures blood glucose levels using
an Amperometric method. The method involves detecting
the current produced from glucose oxidation. The strength
of the current produced by the reaction depends on the
amount of glucose in the blood sample.
The electrons generated during this reaction are transferred
from the blood to the electrodes. The magnitude of the
resultant current is proportional to the concentration of
glucose in the specimen.
The current level is converted into a readout displayed on
the Meter.
5 6

INTRODUCTION TO THE SYSTEM
ABOUT YOUR SYSTEM
Intended Use
The SCAN G-427B Blood Glucose Monitoring System is
comprised of SCAN G-427B Blood Glucose Meter and
SCAN G-427B Blood Glucose Test Strips.
The SCAN G-427B Blood Glucose Monitoring System is
intended to be used for the quantitative measurement of
glucose (sugar) in fresh capillary whole blood samples
drawn from the fingertip. The SCAN G-427B Blood Glucose
Monitoring System is intended to be used by a single
person and should not be shared. It is intended for
self-testing outside the body (in-vitro diagnostic use) by
people with diabetes at home as an aid to monitor the
effectiveness of diabetes control. The SCAN G-427B Blood
Glucose Monitoring System should not be used for the
diagnosis of or screening for diabetes. The SCAN G-427B
Blood Glucose Monitoring System is not for use for
neonates.
Warnings
The system is intended for use outside the body (in-vitro
diagnostic use). It is for single-patient use. It should be
used only for testing glucose (sugar) and only with fresh
capillary whole blood samples taken from the finger. The
system is intended for use at home. It should not be used
for the diagnosis of diabetes or for the testing of neonates.
The System is intended for self-testing outside the body
(in-vitro diagnostic use) by people with diabetes at home
as an aid to monitor the effectiveness of diabetes control.
Alternative site testing should be done only during steady
state times (when glucose is not changing rapidly).
The G-427B blood glucose Test Strips are for use with the
Blood Glucose Meter to quantitatively measure glucose in
fresh capillary whole blood samples drawn from the
fingertips.
This device is not intended for use in healthcare or
assisted-use settings such as hospitals, physician’s offices,
or long-term care facilities because it has not been
determined to be safe and effective for use in these
settings, including for routine assisted testing or as part of
glycemic control procedures.
Use of this device on multiple patients may lead to
transmission of Human Immunodeficiency Virus (HIV),
Hepatitis C Virus (HCV), Hepatitis B Virus (HBV), or other
bloodborne pathogens.
To prevent malware from damaging products or revealing
patient personal information, it is recommended to install
antivirus software on mobile devices.
 When the following phenomenon happens, the user
should stop using meter and contact customer service:
• The test result of control solution exceeds the range of
vial labeled.
• The meter failure to display relative information;
• The meter does not respond when insert Test Strips;
•The meter damaged severely (eg. Case broken, screen
chalkboard)
TEST PRINCIPLES
The System uses electrochemical methodologies. The
System quantitatively measures blood glucose levels using
an Amperometric method. The method involves detecting
the current produced from glucose oxidation. The strength
of the current produced by the reaction depends on the
amount of glucose in the blood sample.
The electrons generated during this reaction are transferred
from the blood to the electrodes. The magnitude of the
resultant current is proportional to the concentration of
glucose in the specimen.
The current level is converted into a readout displayed on
the Meter.
7 8

CONTENTS OF THE KIT
A meter
 Test strips x 25 pcs
User manual
2 AAA alkaline batteries
 Lancing device
 Sterile lancets x 25 pcs
BLOOD GLUCOSE METER
1
2
3
4
5
1. Strip port
Where you insert the Test Strip into strip port, the Meter
will turn on automatically.
2. Strip ejector
Slide forward to eject the Test Strip after test.
3. LCD Display
It guides you through the test using symbols and simple
messages
4. "M" Button
It is used to turn on the Meter enter the memory mode
5 "S" Button
It is used to set up the Meter
NOTE:
The lancing device can be used several times
however the sterile lancet should be changed after
each use.
Control solution is not included in the standard kit.
There are three levels for the control solution: low,
normal and high. Please contact the place of
purchase for more information.
If any items are missing from your kit or opened prior to use,
please contact local customer services or place of purchase
for assistance.
9 10

TEST STRIP
Each strip can be used only once. The Test Strip consists of
the following parts:
Absorbent hole
Apply a drop of blood here. The blood will
be drawn in automatically.
Confirmation window
This is where you confirm if enough blood
has been applied to the absorbent hole of
the strip.
Test strip handle
Hold this part to insert the strip into the slot.
Contact bars
Insert this end of the Test Strip into the
meter. Push it in firmly until it will go no
further.
ATTENTION
Test results might be wrong if the
contact bar is not fully inserted into
the test slot.
The front side of the Test Strip should
face up when inserting the Test Strip.
METER SCREEN DISPLAY MESSAGE
2
4
6
8
10
1
3
5
9
7
12
11
1. Blood drop symbol
Flashes when it is
ready to apply the
blood sample.
2. Low battery symbol
Appears when the
battery power is low.
3. Test strip symbol
Appears when the
Meter is turned on.
4. Test result area
Displays glucose
results
5. Ketone display
6. Measurement unit
Appears with the test
result in mg/dL or
mmol/dL
7. Bluetooth symbol
8. CTL symbol
Appears when doing
a control test and
indicates that the
result won’t be stored
in the memory
9. Date
10. Memory symbol
Appears when you
review the memory
11. Time
12. Day average
Indicates that the
displayed test result
is an average value
11 12

SETTING THE METER AND DELETING THE MEMORY
SETTING THE DATE AND TIME
1. Setting the Year
Press and Hold “S” button for 3 seconds,
until the last two digits of the year flash on
the screen (for example, “14” equals 2014).
Press the “M” button until the correct year
appears. Press “S”.
2. Setting the month
With the month flashing, press “M” until the
correct month appears. Press “S”.
3. Setting the day
With the day flashing, Press “M” until the
correct day appears. Press “S”.
4. Setting the AM/PM
With the AM or PM flashing, Press “M” until
the correct one appears. Press “S”.
5. Setting the hour
With the hour flashing, Press “M” until the
correct hour appears. Press “S“.
6. Setting the minute
With the minute flashing, Press “M” until
the correct minute appears. Press “S”.
SETTING THE UNIT (MG/DL OR MMOL/L)
1. mg/dL → mmol/L
With the “mg/dL” displaying, press “M” button until the
“mmol/L” appears, press “S” button twice again until the
meter turn off.
2. mmol/L → mg/dL
With the “mmol/L” displaying, press “M” button until the
“mg/dL” appears, press “S” button twice again until the
meter turn off.
DELETING THE MEMORY
 Press “S” then “dEL” will display with flashing “M”
 Press “M” once to confirm delete, press “M”
button again to delete ALL memory. The meter
then displays “OK”, which means that the
memory is deleted. If you don’t
want to delete the memory, press
the S button to skip this step. The
meter will automatically turn “OFF”,
and the set up will be completed.
NOTE:
The date, time, unit and memory deletion can
ONLY be set in the setting mode.
 When the meter is in setting mode, if no button is
pressed within 3 minutes, the meter will turn off.
No set up necessary, meter is pre-set for Eastern
Standard Time (EST). Please refer to page 13 of
this manual for setup instructions.
13 14

THE TWO MEASURING MODES
The meter provides you with two modes for measuring,
General and CTL. The CTL mode should be used when a
control solution is being tested. See the table below.
MODES USE WHEN
General tests
(not display)
CTL testing with the control solution
any time of day regardless
of time since last meal
You can switch between each mode by:
1. Start with the meter turned off. Insert a Test
Strip to turn on the meter, the screen will
display a flashing blood drop and Bluetooth
symbol, time and date.
2. Press “M” to select General or CTL mode.
TESTING WITH BLOOD SAMPLE
CAUTION
To reduce the chances of infection:
Choose a clean, dry work surface.
Never share a lancing device and lancet with another
person.
 Always use a new and sterile lancet. Lancets are for single
use only.
Always use a new Test Strip. Test strip are for single use
only.
Avoid getting lotion, oils, dirt or debris in or on the lancet
and lancing device.
NOTE
Before testing, please read the following steps
thoroughly and carefully, please relax and do the test
step by step. Simplifying or changing the test
procedure may produce inaccurate results.
15 16

OVERVIEW OF THE LANCING DEVICE
A. Device cap
B. Handle
C. Needle cap
D. Needle holder
E. Device body
F. Connecting collar
G. Adjustable tip
H. Release button
I. Ejection button
J. Device control cap on the
lancets and the lancing device.
If your lancing device differs from the one shown here,
please refer to the manufacturer’s manual to ensure proper
usage.
Setting Up the Lancing Device
1. Screw the device cap off. 2. Put the needle into the
needle holder until the bottom.
3. Screw the needle cap and
put it in the recycling dustbin.
4. Cover the cap. 5. Adjust the proper level
(usually level 3).
6. Aiming at the sterilized part
for blood-taking, press the
blue release key to finish
blood-taking.
7. Screw the device cap. 8. Push the ejection button and
discard the used lancet in the
appropriate container.
9. Cover the device cap.
J
NOTE
To reduce the chance of infection:
Never share a lancet or the lancing device.
 Always use a new, sterile lancet. Lancets are for
single use only.
Avoid getting hand lotion, oils, dirt, or debris when
handling the lancets.
NOTE
The adjustable tip offers 5 levels of skin penetration.
Twist the adjustable tip to the proper level:
1-2 level for soft or thin skin
3 level for average skin
4-5 level for thick or calloused skin
17 18

Preparing the Puncture Site
Stimulating blood perfusion by rubbing the puncture site
prior to blood extraction has a significant influence on the
glucose value obtained. Blood from a site that has not been
rubbed exhibits a measurably different glucose
concentration than blood from the finger. When the
puncture site was rubbed prior to blood extraction, the
difference was significantly reduced.
Please follow the suggestions below before obtaining a drop
of blood:
 Rub the puncture site for about 20 seconds before
penetration.
 Select the puncture site at the fingertips.
 Clean the puncture site using cotton moistened with 70%
alcohol and let it air dry.
Fingertip Testing
Hold the lancing device firmly against
the side of your finger. Press the release
button. You will hear a click, indicating
that the puncture is complete.
PERFORMING A BLOOD GLUCOSE TEST
Step 1.
Wash hands with soap and warm water.
NOTE
 Choose a different spot each time you test.
Repeated punctures at the same spot may cause
soreness and calluses.
 It is recommended to discard the first drop of blood
as it might contain tissue fluid, which may affect the
test result.
Step 2.
Remove a Test Strip from its vial. With clean, dry
hands, you may touch the Test Strip anywhere
on its surface. Do not bend, cut or modify the
Test Strips in any way. Remove the Test Strip from the vial
and use it instantly.
Step 3.
Open your clinic's app, navigate to blood glucose meter
device and tap “Start measuring.”
Step 4.
Insert the Test Strip into the Meter's test port and
the Meter is turned on. The screen will display a
flashing blood drop and Bluetooth symbol, time
and date.
NOTE
Be sure to use SCAN G-427BS Test Strips, other Test
Strips may not produce accurate results.
Step 5.
Apply your blood to the absorbent hole of the Test Strip. For
collecting blood sample, please refer to the “Preparing the
puncture site” section.
Step 6.
As soon as enough blood has filled the
confirmation window of the Test Strip, you will
hear a beep letting you know the test has begun.
A countdown of 5 seconds starts.
NOTE
You must wait for the end of 5-second count down to
see the data display
Make sure the confirmation window of the Test Strip is
completely filled with your blood sample.
Step 7.
Your blood glucose level, along with the date
and time, appears on the Meter and app. Blood
glucose results are automatically stored in the
app and meter memory.
NOTE
The results obtained from this meter are plasma-
calibrated. This helps you and your physician or other
qualified healthcare provider to compare your meter
results with laboratory tests. Reference to the instructions
given by your physician or other qualified healthcare
provider, do not deviate from these instructions on the
basis of the result without first consulting your physician.
Step 8
Eject the used Test Strip and remove the
lancet. To eject the Test Strip, point the strip
at a disposal container for sharp objects. The
meter will switch itself off automatically after
the Test Strip is ejected.
Please wash your hands thoroughly with
soap and water after handling the Meter,
lancing device, or Test Strips.
19 20

Comparing Meter and Laboratory Results
The meter provides you with whole blood equivalent results.
The result you obtain from your meter may differ somewhat
from your laboratory result due to normal variation. Meter
results can be affected by factors and conditions that do not
affect laboratory results in the same way. To make an
accurate comparison between meter and laboratory results,
follow the guidelines below.
Before going to the lab:
Do a control solution test to make sure that the Meter is
working properly.
Fast for at least eight hours and then do comparison tests,
if possible.
Take your meter with you to the lab.
.
PERFORMING A BLOOD GLUCOSE TEST
Step 1.
Wash hands with soap and warm water.
Source: American Diabetes Association. Standards of
Medical Care in Diabetes-2012.Diabetes Care 2012,35
(Suppl.1) S11-S63.
Please work with your doctor to determine a target range
that works best for you.
Reference Value
TIME OF DAY
Before breakfast (fasting)
Two hours after meals
PEOPLE WITHOUT DIABETES
<100 mg/dL
<140 mg/dL
Step 2.
Remove a Test Strip from its vial. With clean, dry
hands, you may touch the Test Strip anywhere
on its surface. Do not bend, cut or modify the
Test Strips in any way. Remove the Test Strip from the vial
and use it instantly.
Step 3.
Open your clinic's app, navigate to blood glucose meter
device and tap “Start measuring.”
Step 4.
Insert the Test Strip into the Meter's test port and
the Meter is turned on. The screen will display a
flashing blood drop and Bluetooth symbol, time
and date.
NOTE
Be sure to use SCAN G-427BS Test Strips, other Test
Strips may not produce accurate results.
Step 5.
Apply your blood to the absorbent hole of the Test Strip. For
collecting blood sample, please refer to the “Preparing the
puncture site” section.
Step 6.
As soon as enough blood has filled the
confirmation window of the Test Strip, you will
hear a beep letting you know the test has begun.
A countdown of 5 seconds starts.
NOTE
You must wait for the end of 5-second count down to
see the data display
Make sure the confirmation window of the Test Strip is
completely filled with your blood sample.
Step 7.
Your blood glucose level, along with the date
and time, appears on the Meter and app. Blood
glucose results are automatically stored in the
app and meter memory.
NOTE
The results obtained from this meter are plasma-
calibrated. This helps you and your physician or other
qualified healthcare provider to compare your meter
results with laboratory tests. Reference to the instructions
given by your physician or other qualified healthcare
provider, do not deviate from these instructions on the
basis of the result without first consulting your physician.
Step 8
Eject the used Test Strip and remove the
lancet. To eject the Test Strip, point the strip
at a disposal container for sharp objects. The
meter will switch itself off automatically after
the Test Strip is ejected.
Please wash your hands thoroughly with
soap and water after handling the Meter,
lancing device, or Test Strips.
While staying at the lab:
Make sure that the samples for both tests test are taken
and tested within 15 minutes of each other.
 Wash your hands and then obtain a blood sample
Never use your meter with blood that has been collected
in a gray top test tube.
Use fresh capillary blood only.
21 22

Apply the control solution.
Shake the control solution vial thoroughly before
use.Squeeze out a drop and wipe it off, then squeeze another
drop and place it on the tip of the vial cap.
Hold the Meter to move the absorbent hole of Test Strip so it
touches the drop. Once the confirmation window fills
completely, the meter will begin counting down.
To avoid contaminating the control solution, do not directly
apply control solution onto a strip.
Step 4.
The result of the control solutions test appears on the
display. The result will not be stored under CTL mode.
The result of the control solutions test should be within the
range printed on the Test Strip vial label. If the test results
falls outside the specified range printed on Test Strip vial
label, repeat the test.
Results falling outside the specified range may be caused by:
Error in performing the test
 Expired or contaminated control solution
 Expired or contaminated Test Strip
Malfunction of your meter
If you continue to get control solution test results that fall
outside of the range printed on the vial, the System may not
be working properly. Do not use the Meter. Please contact
your distributor support immediately.
You may press “M” button to select CTL mode,
for selecting the CTL mode, please refer to the
“THE TWO MEASURING MODES” section.
Step 3.
Comparing Meter and Laboratory Results
The meter provides you with whole blood equivalent results.
The result you obtain from your meter may differ somewhat
from your laboratory result due to normal variation. Meter
results can be affected by factors and conditions that do not
affect laboratory results in the same way. To make an
accurate comparison between meter and laboratory results,
follow the guidelines below.
Before going to the lab:
Do a control solution test to make sure that the Meter is
working properly.
Fast for at least eight hours and then do comparison tests,
if possible.
Take your meter with you to the lab.
CONTROL SOLUTION TEST
Materials Needed:
Glucose meter
Test strips
TaiDoc control solution
When to Do a Control Solution Test:
 When you suspect that the Meter or Test Strips are not
working properly.
 If your blood glucose test results are not consistent with
how you feel.
 After the Test Strips are exposed to extreme conditions.
After dropping the Meter.
The control solution is to check that the Meter and the Test
Strips can work together as a system and work correctly.
How to Do a Control Solution Test
Step 1.
Insert the Test Strip to turn on the Meter. Insert the Test Strip
into the Meter. Wait for the Meter to display the drop symbol.
Step 2.
VIEWING RESULTS ON THE APP AND METER
Your clinic’s app and the Meter show your test results upon
completion of a test. The app also shows the history of your
results, and the Meter stores the 500 most recent blood
glucose test results with dates and times. It also provides 7-,
14-, 21-, 28-, 60- and 90-day averages of your blood glucose
test results.
Recalling the Stored Results
1. Start with the Meter off, press the “M”
button to turn on the Meter. The “ ”
symbol will flash with the time and date.
While staying at the lab:
Make sure that the samples for both tests test are taken
and tested within 15 minutes of each other.
 Wash your hands and then obtain a blood sample
Never use your meter with blood that has been collected
in a gray top test tube.
Use fresh capillary blood only.
NOTE
The control solution readings are not included in the
average of your results.
2. Press “M” again, and the most recent test results with
date and time will display. Press “M” once more and the
next most recent test results will appear. Each time you
press and release “M”, the Meter will recall up to your last
500 test results in order. Press the “S” to turn off the Meter.
When the memory is full, the oldest result is dropped and
the newest result is added.
Reading the Average of Blood Glucose Results
When the Meter is off, press and hold the “M”
button until the DAY AVG flashing, release
button then 7-day average results appear with
“n024” (means 24 records to be averaged) on
the screen. Press the “M” button to review the
14-, 21-,28-, 60- and 90-day general averages.
Press the “S” button to turn off the Meter.
NOTE
The control solution readings are not included in the
average of your results.
When your glucose value is less than 20mg/dL, you
will see the following message “Lo”. When your glucose
value is higher than 600mg/dL, you will see the
following message “HI”.
23 24

Apply the control solution.
Shake the control solution vial thoroughly before
use.Squeeze out a drop and wipe it off, then squeeze another
drop and place it on the tip of the vial cap.
Hold the Meter to move the absorbent hole of Test Strip so it
touches the drop. Once the confirmation window fills
completely, the meter will begin counting down.
To avoid contaminating the control solution, do not directly
apply control solution onto a strip.
Step 4.
The result of the control solutions test appears on the
display. The result will not be stored under CTL mode.
The result of the control solutions test should be within the
range printed on the Test Strip vial label. If the test results
falls outside the specified range printed on Test Strip vial
label, repeat the test.
Results falling outside the specified range may be caused by:
Error in performing the test
 Expired or contaminated control solution
 Expired or contaminated Test Strip
Malfunction of your meter
If you continue to get control solution test results that fall
outside of the range printed on the vial, the System may not
be working properly. Do not use the Meter. Please contact
your distributor support immediately.
You may press “M” button to select CTL mode,
for selecting the CTL mode, please refer to the
“THE TWO MEASURING MODES” section.
Step 3.
CONTROL SOLUTION TEST
Materials Needed:
Glucose meter
Test strips
TaiDoc control solution
When to Do a Control Solution Test:
 When you suspect that the Meter or Test Strips are not
working properly.
 If your blood glucose test results are not consistent with
how you feel.
 After the Test Strips are exposed to extreme conditions.
After dropping the Meter.
The control solution is to check that the Meter and the Test
Strips can work together as a system and work correctly.
How to Do a Control Solution Test
Step 1.
Insert the Test Strip to turn on the Meter. Insert the Test Strip
into the Meter. Wait for the Meter to display the drop symbol.
Step 2.
VIEWING RESULTS ON THE APP AND METER
Your clinic’s app and the Meter show your test results upon
completion of a test. The app also shows the history of your
results, and the Meter stores the 500 most recent blood
glucose test results with dates and times. It also provides 7-,
14-, 21-, 28-, 60- and 90-day averages of your blood glucose
test results.
Recalling the Stored Results
1. Start with the Meter off, press the “M”
button to turn on the Meter. The “ ”
symbol will flash with the time and date.
NOTE
 Do not use the expired control solution. Only use the
control solution, you can purchase this product
through visits the website: www.taidoc.com.
Users should periodically review their technique and
compare a result obtained with their meter to a result
obtained using a laboratory method or a well-
maintained and monitored system used by your
healthcare provider.
NOTE
The control solution readings are not included in the
average of your results.
2. Press “M” again, and the most recent test results with
date and time will display. Press “M” once more and the
next most recent test results will appear. Each time you
press and release “M”, the Meter will recall up to your last
500 test results in order. Press the “S” to turn off the Meter.
When the memory is full, the oldest result is dropped and
the newest result is added.
Reading the Average of Blood Glucose Results
When the Meter is off, press and hold the “M”
button until the DAY AVG flashing, release
button then 7-day average results appear with
“n024” (means 24 records to be averaged) on
the screen. Press the “M” button to review the
14-, 21-,28-, 60- and 90-day general averages.
Press the “S” button to turn off the Meter.
NOTE
The control solution readings are not included in the
average of your results.
When your glucose value is less than 20mg/dL, you
will see the following message “Lo”. When your glucose
value is higher than 600mg/dL, you will see the
following message “HI”.
25 26

CARE AND STORAGE FOR YOUR SYSTEM
 Handle the Meter with care. Dropping or throwing the
Meter may cause damage to the device.
 Don't expose the SCAN G-427B Blood Glucose Monitoring
System, Test Strips, and Control Solution, to extreme
conditions, such as high humidity, heat, freezing cold or
dust. The storage conditions for the Test Strips are
39°F~86°F (4°C~30°C), Humidity＜80%RH. Storage
conditions for the Meter are -4°F~131°F (-20°C~55°C),
Humidity＜80%RH.
Always wash your hands with soap and water and rinse
and dry completely before handling the SCAN G-427B
Blood Glucose Monitoring System and Test strip.
 Use CaviWipes (see below) to clean the Blood Glucose
Monitoring System.
Discard the used lancet into a container for sharp objects.
Cleaning and Disinfection
The cleaning and disinfecting process is absolutely
necessary for the test procedure, because cleaning can
insure ensure the Meter works well (for example, the display
will be clear to see after cleaning); and disinfection can avoid
the infection to you or to the other people, and the
cross-infection.
We strongly warn that the device should be cleaned and
disinfected following use on every patient. And we suggest
you use the following product: CaviWipes (EPA registration
number: 46781-8). You can purchase this product according
to the following information: visit the web site:
www.metrex.com or contact Metrex at 800-841-1428 for
product or technical information. CaviWipes are also
available at www.amazon.com or via a Google search.
The SCAN G-427B G-427B meter can be cleaned and
disinfected by the user twice per day over the 5 year use life
of the device, up to 3,650 times. The meter should be
cleaned and disinfected at least once per week.
Cleaning Procedure
The purpose of cleaning is to remove
the dust or organic/inorganic
contaminations from the glucose
meters. To clean the Meter, wipe the
entire outer crust of the meters gently
with disinfectant towels. For cleaning
procedure, we recommend use CLOROX Healthcare Bleach
Germicidal Wipes. In addition, we recommend cleaning the
meters every time after use. As for the cleaning procedure,
please follow the steps below:
 Wiping the entire outer crust (including Test Strips port,
data port, strip ejector, LCD Display, M button, and S
button) of the Meter with CLOROX Healthcare Bleach
Germicidal Wipes.
Air dried the meters and lancing devices carefully in room
temperature.
Disinfection Procedure
A disinfection procedure is a procedure intended to remove
the blood-borne pathogens on the meters. Disinfecting the
entire outer crust of the Meter with CLOROX Healthcare
Bleach Germicidal
Wipes carefully, including screen and button. In order to
ensure the blood-borne pathogens were removed by the
disinfectant infallibly, it is necessary to keep disinfectant
(disinfectant is a chemical that is applied to kill microbes) on
the Meter for one minute. As for the disinfecting procedure,
please follow the steps below:
 Wiping the entire outer crust of the Meter with CLOROX
Healthcare Bleach Germicidal Wipes and keeps the
disinfectant on the Meter for one minute.
Carefully air dried the meters in room temperature.
1. Before the test, the user should clean and wash hands. If
you are a caregiver, (not the patient), please use
disposable gloves.
2. After test, take one wipe to clean the meter’s housing,
buttons, lens, mark, usb cover and support block,
including its front and back for 10 seconds for cleaning
until there is no soil on the surface. Then disinfect the
meter’s housing, buttons, lens, mark, usb cover and
support block use another wipe for 1 min, keep the
surface wet for 1 min.
3. Take off the glove; discard carefully according to your
healthcare provider’s instruction.
NOTE
1. Each disinfection step requires a pre-cleaning
step.
2. If the Meter is being operated by a second person
who is providing testing assistance to the user, the
Meter and lancing device shall be cleaned and
disinfected first.
3. The users should wash hands thoroughly with
soap and water after handling the Meter, lancing
device, or Test Strips.
27 28

CARE AND STORAGE FOR YOUR SYSTEM
 Handle the Meter with care. Dropping or throwing the
Meter may cause damage to the device.
 Don't expose the SCAN G-427B Blood Glucose Monitoring
System, Test Strips, and Control Solution, to extreme
conditions, such as high humidity, heat, freezing cold or
dust. The storage conditions for the Test Strips are
39°F~86°F (4°C~30°C), Humidity＜80%RH. Storage
conditions for the Meter are -4°F~131°F (-20°C~55°C),
Humidity＜80%RH.
Always wash your hands with soap and water and rinse
and dry completely before handling the SCAN G-427B
Blood Glucose Monitoring System and Test strip.
 Use CaviWipes (see below) to clean the Blood Glucose
Monitoring System.
Discard the used lancet into a container for sharp objects.
Cleaning and Disinfection
The cleaning and disinfecting process is absolutely
necessary for the test procedure, because cleaning can
insure ensure the Meter works well (for example, the display
will be clear to see after cleaning); and disinfection can avoid
the infection to you or to the other people, and the
cross-infection.
We strongly warn that the device should be cleaned and
disinfected following use on every patient. And we suggest
you use the following product: CaviWipes (EPA registration
number: 46781-8). You can purchase this product according
to the following information: visit the web site:
www.metrex.com or contact Metrex at 800-841-1428 for
product or technical information. CaviWipes are also
available at www.amazon.com or via a Google search.
The SCAN G-427B G-427B meter can be cleaned and
disinfected by the user twice per day over the 5 year use life
of the device, up to 3,650 times. The meter should be
cleaned and disinfected at least once per week.
Cleaning Procedure
The purpose of cleaning is to remove
the dust or organic/inorganic
contaminations from the glucose
meters. To clean the Meter, wipe the
entire outer crust of the meters gently
with disinfectant towels. For cleaning
procedure, we recommend use CLOROX Healthcare Bleach
Germicidal Wipes. In addition, we recommend cleaning the
meters every time after use. As for the cleaning procedure,
please follow the steps below:
 Wiping the entire outer crust (including Test Strips port,
data port, strip ejector, LCD Display, M button, and S
button) of the Meter with CLOROX Healthcare Bleach
Germicidal Wipes.
Air dried the meters and lancing devices carefully in room
temperature.
Disinfection Procedure
A disinfection procedure is a procedure intended to remove
the blood-borne pathogens on the meters. Disinfecting the
entire outer crust of the Meter with CLOROX Healthcare
Bleach Germicidal
Wipes carefully, including screen and button. In order to
ensure the blood-borne pathogens were removed by the
disinfectant infallibly, it is necessary to keep disinfectant
(disinfectant is a chemical that is applied to kill microbes) on
the Meter for one minute. As for the disinfecting procedure,
please follow the steps below:
 Wiping the entire outer crust of the Meter with CLOROX
Healthcare Bleach Germicidal Wipes and keeps the
disinfectant on the Meter for one minute.
Carefully air dried the meters in room temperature.
1. Before the test, the user should clean and wash hands. If
you are a caregiver, (not the patient), please use
disposable gloves.
2. After test, take one wipe to clean the meter’s housing,
buttons, lens, mark, usb cover and support block,
including its front and back for 10 seconds for cleaning
until there is no soil on the surface. Then disinfect the
meter’s housing, buttons, lens, mark, usb cover and
support block use another wipe for 1 min, keep the
surface wet for 1 min.
3. Take off the glove; discard carefully according to your
healthcare provider’s instruction.
NOTE
1. Each disinfection step requires a pre-cleaning
step.
2. If the Meter is being operated by a second person
who is providing testing assistance to the user, the
Meter and lancing device shall be cleaned and
disinfected first.
3. The users should wash hands thoroughly with
soap and water after handling the Meter, lancing
device, or Test Strips.
SpecificationS
1. Model: G-427B
2. Machine size: 3.5 × 2.1 × 0.5 in (9.0 × 5.4 × 1.3 cm) (L×W×H)
3. Weight: 0.1 lb (0.07 kg) (excluding batteries)
4. Measuring method: Amperometric technology using
glucose oxidase
5. Measuring range: 20 mg/dL~600 mg/dL (1.1
mmol/L~33.3 mmol/L)
6. Memory: 500 blood glucose tests
7. Display: LCD display with backlight
8. Power source: DC 3V (AAA×2 alkaline batteries)
9. Battery life: Approx. 500 normal tests
10. Storage condition (system: Meter and Test Strips):
39.2°F~104°F (4°C~40°C) and below 85% relative humidity
11. Storage condition (meter): -4°F~131°F (-20°C~55°C),
Humidity＜93%RH, 700hPa ~ 1060hPa
12. Operating conditions: 50°F~104°F (10°C~40°C),
Humidity:10%~85%RH
13. Blood source: Fresh capillary whole blood
14. Blood volume: Minimum 0.7 micro liter.
15. Use life: five years.
16. Bluetooth specification:
Modulation: GFSK
Frequency: 2.4 GHZ
Tolerance frequency: 2402-2480 MHZ
RF output power: 0 dBm
Occupied channel bandwidth: 2 MHZ
Transmitter unwanted emissions: ≤ -30 dBm
Effective distance: 10 m
29 30

DISPLAY MESSAGES
MESSAGE
ACTION
Blood glucose level is
lower than 20mg/dl
The message indicates very
low blood sugar. You should
consult with your healthcare
professional.
Blood glucose level is
higher than 600 mg/dl
This indicates sever
hyperglycemia (high blood
glucose). You should seek
immediate medical assistance.
Meter is ready to test
control solution under
the CTL state.
Please place a drop of
control solution onto the
test well of Test Strip.
Battery power is low. Please change the battery.
Use a used Test Strip Please use a new strip
and re-test.
Error massage indicates
that you may remove
prematurely the strip after
applying blood to the
absorbent hole
Try again with a new Test Strip
Problem with the Meter
Re-test with a new Test Strip.
If the problem is still unsolved,
please call the customer care
line for help.
Environmental
temperature is lower
than 50℉~104℉
Please test at an
environmental temperature
within 50℉~104℉
operation range
WHAT IT MEANS
PROBLEMS
Display remains
blank after the
Test Strip has
been inserted
into the Meter.
The Meter
countdown
did not start.
1. Test Strip has not been
inserted correctly.
2. The blood sample
volume is not enough .
Use a new Test Strip
and redo the test.
1. Battery may be
installed improperly.
2. Battery power is
too low tor use.
3. Too much time has
passed between
inserting the Test Strip
and performing the test.
4. Test Strip has not been
fully inserted into the Meter.
1.Install the Battery
correctly.
2.Replace with
new Battery.
3.Reinsert the Test Strip
into the Meter.
4.Reinsert the Test Strip
into the Meter.
PROBLEMS SOLUTIONS
CAUSES
Test results are
incon sistent or
Control Solution
test results are
not withinthe
specified range.
1. Not enough sample in
the Test Strip.
2. Test Strip or Control
Solution has expired.
3. Test Strip has been
damaged due to heat or
humidity so that sample
cannot be applied or the
speed of applying sample
is too slow.
4. System is not per-
forming due to the
environment being above
or below room
temperature.
1. Redo test with new
Test Strip and make sure
that enough sample has
been added.
2. Redo test with new
Test Strip.
3. Perform a Control
Solution test using a
new Test Strip. If results
are still out of range,
replace with new vial of
Test Strips.
4. Bring System to a
room temperature
environment and wait
approximately 30
minutes before
performing a new test.
31 32

PERFORMANCE CHARACTERISTICS
Precision
Within Run Precision
(300 Venous Blood Tests per Glucose Level)
Results show that the greatest variability observed between
Test Strips when tested with blood is 3.6% or less.
Glucose concentration
interval（mg/dL) 30~50 51~110 111~150 151~250 251~400
YSI Mean (mg/dL)
Lot 1
Lot 2
Lot 3
Pooled
Mean
(mg/dL)
SD
CV(%)
Mean
(mg/dL)
SD
CV(%)
Mean
(mg/dL)
SD
CV(%)
Mean
(mg/dL)
SD
CV(%)
40.3 89.9 131.5 199.3 323.8
40.0 89.7 130.8 200.0 322.1
2.7 3.1 4.6 7.2 11.1
6.6% 3.5% 3.5% 3.6% 3.4%
40.1 89.9 130.5 200.4 322.1
2.6 3.1 4.6 6.9 10.7
6.5% 3.5% 3.6% 3.4% 3.3%
2.5 3.1 4.6 7.0 10.1
40.0 89.9 130.7 201.3 320.9
6.3% 3.4% 3.5% 3.5% 3.1%
40.2 90.2 130.0 199.9 323.2
2.7 3.1 4.7 6.5 10.9
6.7% 3.5% 3.6% 3.3% 3.4%
Glucose concentration
interval（mg/dL) 30~50 51~110 111~150 151~250 251~400
YSI Mean (mg/dL)
Lot 1
Lot 2
Lot 3
Pooled
Mean
(mg/dL)
SD
CV(%)
Mean
(mg/dL)
SD
CV(%)
Mean
(mg/dL)
SD
CV(%)
Mean
(mg/dL)
SD
CV(%)
Between-run Precision
Results show that the greatest variability observed between
Test Strips when tested with blood is 2.9% or less.
41.9 94.0 131.1 199.2 325.3
40.1 90.5 116.8 193.0 315.6
2.0 2.5 3.2 4.8 6.3
5.1% 2.8% 2.8% 2.5% 2.0%
40.1 90.2 117 192.5 314.9
2.0 2.6 3.1 4.5 6.2
5.0% 2.9% 2.7% 2.3% 2.0%
1.9 2.5 2.9 4.0 6.0
40.0 89.8 117.3 192.1 315.0
4.9% 2.8% 2.5% 2.1% 1.9%
40.1 90.3 116.9 192.4 314.2
2.0 2.7 3.2 4.6 6.2
5.1% 3.0% 2.8% 2.4% 2.0%
33 34

Lay-user Performance Study
Difference range
between the true
blood glucose level
and the SCAN
G-427B Meter result
Within
±5%
49.29%
(173/351)
83.48%
(293/351)
98.58%
(346/351)
100%
(351/351)
Within
±10%
Within
±15%
Within
±20%
The percent (and
number) of meter
results that match
true blood glucose
level within x%
ELECTRICAL AND SAFETY STANDARDS
This meter complies with CISPR 11: Class B (Radiated Only).
Emissions of the energy used are low and not likely to cause
interference in nearby electronic equipment. The meter has
been tested for immunity to Level 3 electrostatic discharge
as specified in IEC 61326. This meter complies with immunity
to radio frequency interference over the frequency range
80MHz to 2.5GHz at 3V/m as specified in IEC 61326-1 or
61326-2.
The meter meets the requirements for immunity to electrical
interference at the frequency range and test level specified
in international standard ISO 15197.
Use of this meter near electrical or electronic equipment that
are sources of electromagnetic radiation, may interfere with
proper operation of this meter. It is advisable to avoid testing
in close proximity to sources of electromagnetic radiation.
Common sources of electromagnetic radiation include
mobile phones, walkie talkies or garage door openers.
Do not use the equipment where aerosol sprays are being
used, or when oxygen is being administered.
FCC REQUIREMENTS
Changes or modifications not expressly approved by the
party responsible for compliance could void the user
authority to operate the equipment.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired operation.
Note: This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and
can radiate radio frequency energy, and if not installed and
used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no
guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful
interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more
of the following measures:
 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and
receiver.
 Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
 Consult the dealer or an experienced radio/TV technician
for help.
This equipment complies with FCC radiation exposure limits
set forth for an uncontrolled environment. This equipment
should be installed and operated with a minimum distance
of 7.8 in (20cm) between the radiator & your body. This
transmitter must not be co-located or operating in
conjunction with any other antenna or transmitter.
Your SCAN G-427B Meter result may vary slightly from you
actual blood glucose value. This may be due to slight
differences in technique and the natural variation in the test
technology.The chart below shows the results of astudy
where 351 typical users used the SCAN G-427BMeter to test
their blood glucose level. In this study, theSCAN G-427B
Meter gave result within 15% of their trueblood glucose level
346 out of 351 times.
35 36
Traceability of Blood Glucose Monitoring System
The results of SCAN G-427B Blood Glucose Monitoring
System were compared to parallel results obtained on
YSI-2300, which is the manufacturer's standard
measurement procedure.

ELECTRICAL AND SAFETY STANDARDS
This meter complies with CISPR 11: Class B (Radiated Only).
Emissions of the energy used are low and not likely to cause
interference in nearby electronic equipment. The meter has
been tested for immunity to Level 3 electrostatic discharge
as specified in IEC 61326. This meter complies with immunity
to radio frequency interference over the frequency range
80MHz to 2.5GHz at 3V/m as specified in IEC 61326-1 or
61326-2.
The meter meets the requirements for immunity to electrical
interference at the frequency range and test level specified
in international standard ISO 15197.
Use of this meter near electrical or electronic equipment that
are sources of electromagnetic radiation, may interfere with
proper operation of this meter. It is advisable to avoid testing
in close proximity to sources of electromagnetic radiation.
Common sources of electromagnetic radiation include
mobile phones, walkie talkies or garage door openers.
Do not use the equipment where aerosol sprays are being
used, or when oxygen is being administered.
FCC REQUIREMENTS
Changes or modifications not expressly approved by the
party responsible for compliance could void the user
authority to operate the equipment.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired operation.
Note: This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and
can radiate radio frequency energy, and if not installed and
used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no
guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful
interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more
of the following measures:
 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and
receiver.
 Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
 Consult the dealer or an experienced radio/TV technician
for help.
This equipment complies with FCC radiation exposure limits
set forth for an uncontrolled environment. This equipment
should be installed and operated with a minimum distance
of 7.8 in (20cm) between the radiator & your body. This
transmitter must not be co-located or operating in
conjunction with any other antenna or transmitter.
37