Universal Biosensors SENTIA User manual

79003 Rev 2.3.1 (20220517)
USER GUIDE
Chemical Analysis Instrument

Original Instructions
Any software screens, hardware details or test results shown in this manual are for
illustrative purposes only. The information shown on your analyzer may differ.
The contents of this manual, including all graphics and photographs, are the property of
Universal Biosensors. No part of this document may be reproduced or transmitted in any
form or by any means, electronic or mechanical, for any purpose, without the express
written permission of Universal Biosensors. Universal Biosensors has made every
reasonable effort to ensure that all the information contained in this manual is correct at
the time of printing. However, Universal Biosensors reserves the right to make any
changes necessary without notice as part of ongoing product development.
Any correspondence relating to this manual should be addressed to:
Universal Biosensors Pty Ltd
1 Corporate Avenue
Rowville, 3178, Victoria Australia
Sentia™ and the Sentia logo are trademarks of Universal Biosensors. All rights reserved.
All other trademarks are property of their respective owners.
Patent Pending.
中国发明专利申请，申请号为CN00，专利申请，尚未授权
For all other patent information refer to www.mysentia.com.
© 2021 Universal Biosensors Pty Ltd
This document is available in electronic format at www.mysentia.com.

Table of Contents
1. Introducing Sentia™ 1
General warnings and precautions 1
Your Sentia™ kit 2
Intended use of the Sentia™ system 2
Key features of the Sentia™ system 2
How Sentia™ works 3
Quality control 3
2. Getting started 5
Powering the analyzer 5
Power indicators 5
Parts of the Sentia™ analyzer 6
Sentia™ test strips 6
First time use 7
Turning the analyzer on and off 7
Registration 7
Setting the date and time (by setting the time zone) 8
Connecting to a wireless network 9
Downloading strip calibration data from the Internet 10
Guidance on wine types 10
Rosé 10
Other Styles and Non-Table Wine 10

3. Running a test 11
Preparing to run a test 11
Warnings 11
How to perform a test 13
4. Cleaning the analyzer 19
Spills during sample application or cleaning 19
5. Historical results 21
Past results 21
Viewing past test results 21
Viewing past tests that ended in an error 22
Exporting past results to an external device 22
What you’ll need 22
Setting up 23
Connecting to the analyzer from another device 23
Exporting the results 24
6. Settings 26
Analyzer settings 26
Brightness 26
Sound volume 27
Time zone 27
Date and Time format 27

Table of Contents
Auto power-off 28
Connectivity (wireless network) 28
Wi-Fi (wireless) Settings 28
Sample settings 28
About 29
Analyzer information 29
Network information 29
7. Troubleshooting 30
General troubleshooting 30
Warning and error messages 30
8. Customer support 38
Ordering details 38
Software updates 38
9. Appendices 39
Abbreviations and terms 39
Labels and symbols 39
Technical specifications 41
Legal notices 42
Software licences 42
Disposing of the Sentia™ analyzer 42
Disposing of Sentia™ test strips 42
European Union Radio Equipment Declaration 42

United Kingdom Declaration of Conformity 42
Radio emissions and electromagnetic compatibility 43
Sentia™ analyzer – Warranty 44
10. Index 46

1
1. Introducing Sentia™
1. Introducing Sentia™
General warnings and precautions
•When you use a new vial of strips, you may need to establish a WiFi
connection to the Internet so that the latest test strip calibration data can
be downloaded (see Page 9). You will need to download calibration data
every 3 months or so to stay up to date with the test strips we produce.
•Always follow the safety procedures and precautions listed here and
throughout this user guide.
•When connecting the analyzer to external devices (such as USB power
sources), ensure those devices are in compliance with local safety
regulations.
•The power supply that comes with your analyzer is for indoor use only.
•Only use Sentia™ test strips.
•Always store Sentia™ test strips according to the symbol on the vial
label: some of our strips require refrigeration – i.e. between 2 °C and
8 °C (35.6 °F and 46.4 °F).
•Always close the vial lid after a strip has been taken out.
•The Sentia™ analyzer contains a lithium-ion rechargeable battery which
must be treated with care:
oDo not attempt to access the battery; if your battery is not
performing adequately, contact Customer Support (see Page 38);
oDo not place the analyzer near a heat source or in a hot
environment (e.g. an automobile parked in the sun); and
oIf you suspect the battery may have been punctured, crushed or
damaged, contact Customer Support (see Page 38).
•Failure to follow the above battery care instructions could result in
serious injury or death due to a battery catching fire, exploding or leaking.

2
Your Sentia™ kit
Your Sentia™ kit contains the following items:
1.
Analyzer
2.
This User Guide
3.
Power Supply/
USB Cable
4.
Spare Cap
Intended use of the Sentia™ system
The Sentia™ system can be used to determine the concentration of
various chemicals in wine. It is portable and fast, allowing
concentrations to be determined within minutes of sample
application.
Key features of the Sentia™ system
•hand-held and portable
•able to measure free sulfur dioxide, malic acid and glucose
•easy sample application with small sample volume
•fast result
•strip ejection mechanism
•rich user interface
•internal battery with power monitoring
•memory feature (for displaying past test results and errors)
•can export past test results to an external device

3
1. Introducing Sentia™
How Sentia™ works
The Sentia™ system analyzes a sample applied to a Sentia™ test
strip*. The sample is applied after the test strip has been inserted
into the Sentia™ analyzer's strip port. The sample mixes with dried
reagents inside the strip and the analyzer detects the level of a
particular analyte. The result is then displayed on the analyzer
screen.
Up to one thousand records can be stored in the analyzer memory.
You can list the records and download them to an external device for
external review and analysis.
Quality control
The Sentia™ analyzer has a number of integrated quality control
functions:
•A check of components and functions is performed every time
the analyzer is turned on.
•During the test, the strip’s integrity is monitored. The strip
temperature is also controlled to ensure test results are
reproducible.
An error is reported if the analyzer fails any of the above checks.
Warning and error messages are described in Section 7
(Troubleshooting) on page 30.
*Sentia™ test strips are sold separately. See “Ordering details” on
page 38.

4
This page is intentionally blank.

5
2. Getting started
2. Getting started
Powering the analyzer
The Sentia™ analyzer is charged via a micro USB cable and AC power
supply (included). It can also be charged using a micro USB cable
connected to another suitable power source (such as a USB port on
a computer).
It is best to make sure that the analyzer is fully charged before first
use.
AC power supply
and cable
To charge analyzer, plug in
AC power supply and connect the USB cable
Your AC power supply comes with a range of
plugs. Find the right plug for your region, then
align the plug’s rear three plastic tabs with the
power supply’s main body and gently turn the
plug in the “Lock” direction until you hear a click.
Power indicators
A battery icon is at the top right corner of the screen with colour
coding as follows:
Green: power supply plugged in, battery charging.
White: analyzer has sufficient battery charge.
Yellow: moderately-low battery; charge soon.
Red: critical battery; charge before running a test on battery power

6
Parts of the Sentia™ analyzer
1. Power button
2. Touch screen display
3. Test strip eject button
4. Test strip port and
protective cap
5. USB charge port
Sentia™ test strips
Electrodes: Insert this end into the analyzer strip
port.
Target Area: Apply sample here when
prompted by analyzer.
Strip Index Number: Enter the number after the letter (e.g. 12345 in the example above) when
prompted by the software.
3
2
5
1
4
You must enter the correct strip index number to get accurate results:
the analyzer uses this number to determine the strip calibration.

7
2. Getting started
First time use
Turning the analyzer on and off
To turn the analyzer on, touch the power button briefly.
You can turn the analyzer off by touching the power button for
several seconds and answering yes when prompted for
confirmation.
Registration
The very first time you power up your device, you will be guided
through a registration workflow in which you will need to connect to
a wireless network (that is connected to the internet), enter your
e-mail address and type in the activation code that has been e-
mailed to you. You must complete these steps to unlock your device.
If the power button or touch screen are not responding, you can force the
analyzer to shut down by disconnecting the external power supply and
holding your finger on the power button for around 15 seconds until the
screen goes black.

8
Setting the date and time (by setting the time zone)
Before you run any tests you should check the date and time
(displayed at the top of the screen). The analyzer uses the internet
and your time zone to set the date and time.
If the date and time are not correct, you will need to set the time
zone. Set the time zone as follows:
1. From the Home screen, touch the SETTINGS button to navigate to the
Settings screen, then select Analyzer and then Time zone
2. Select your region, touch , then select your sub-region. You may
need to swipe your finger up and down on the screen to scroll to your
selection
3. Touch to confirm your selection

9
2. Getting started
Connecting to a wireless network
If it has been more than three months since you ran a test and you
are using a new vial of test strips, a wireless (WiFi) network
connection with Internet access may be required for the analyzer to
download the necessary calibration information for the strips.
If not already connected, follow these steps to connect to a wireless
network:
1. From the Home screen, touch the SETTINGS button, then touch
Connectivity to navigate to the Connectivity screen
2. Touch Wi-Fi Settings to get to the WiFi Settings screen
3. Turn on Wi-Fi
4. Select a network from the CHOOSE A NETWORK panel and enter the
WiFi password (if prompted)
5. After the connection is established, press to confirm your selection
To stop the analyzer trying to connect to a previously connected
network, select Known networkson the Connectivity screen, then select
the network by name and touch the rubbish bin icon.

10
Downloading strip calibration data from the Internet
The analyzer will download strip calibration data automatically when
a stable Internet connection is established.
If you plan to use the analyzer away from a reliable Internet
connection for extended periods, you should make a point of
connecting to a wireless network at least every three months or so.
Guidance on wine types
The Sentia™ system has been designed for red and white table
wines. The following guidance is provided for other wine types.
Check the Technical specifications on Page 41 for more details.
Rosé
For Rosé wines, winemaker discretion is advised when selecting the
‘Red’ or ‘White’ sample type (see Page 13). The best selection may
depend on skin contact the wine received during processing. In most
instances selecting ‘White’ will generate acceptable results but there
may be some cases where the ‘Red’ option yields better results.
Validation of results via an alternate method for your particular wine
is highly recommended.
Other Styles and Non-Table Wine
Some lighter style red varietals may report slightly higher free sulfur
dioxide results on the Sentia™ system compared with other
measurement methods.
Compounds in fortified, sweet and sparkling wines may impact test
accuracy and should be validated using a secondary test method.

11
3. Running a test
3. Running a test
Preparing to run a test
Items necessary to conduct a test are as follows:
1. Sentia™ analyzer
2. A vial of Sentia™ test strips
3. The sample of wine to be tested
4. For some test types (e.g. Malic Acid), you will need to dilute your
sample using one of our sample preparation kits (check the
Technical specifications on Page 41 or with your distributor for
details)
A sample dilution device is only
required for some test types (e.g.
Malic Acid). Check the Technical
specifications on Page 41 for
details.
Warnings
Do:
•Always follow the safety procedures and precautions listed here and
throughout the user guide, and those adopted by your production facility.
•Keep the analyzer as still and level as possible during the test.
1
2
3
4

12
•Only use the system when the room temperature is between 10 °C and
30 °C (50 °F to 86 °F) (See “Technical specifications” on page 41 for
Transport and Storage conditions).
•Always store test strips in their original vial with the cap firmly snap
closed. Close the strip vial securely (until you hear a “click”) as soon as
you have removed your test strip. This will protect the remaining strips
in the vial.
•Always store test strips between the temperatures on the vial label.
•Use a strip within 10 minutes of removing it from the vial.
•Use each test strip only once and discard after use.
•Try to minimize the time between collecting the sample and applying it to
the test strip.
Do not:
•Do not insert a test strip into the strip port more than once. A test strip
that is inserted twice might fail to make a proper electrical contact with
the analyzer.
•Do not bump the test strip or analyzer after you apply the sample or while
the test is in progress.
•Do not use a vial of test strips if the expiration date recorded on the label
has passed. An error will be displayed if an expired strip is used.
•Do not handle a test strip with wet hands as moisture can damage the
strip.
•Do not use a strip that has been dropped or which may have been
contaminated.
•Do not use a strip if it appears damaged in any way.
•Do not shake, stir, aerate or heat a sample prior to testing as these can
all change the measurable analyte levels.
•Do not dilute the sample unless instructed to on the analyzer screen.
•Do not apply the sample to the test strip until you are prompted to do so
by the “apply sample” message on the analyzer screen.
•Never add more sample to the test strip after the analysis has begun.

13
3. Running a test
How to perform a test
1. Touch and hold the power button
until the analyzer turns on
When the analyzer boot process is complete,
the home screen will appear.
2. From the Home screen, tap on the
TEST button
3. Select the test type
Select the test type to match the test strip.
4. Select the sample type
Select the sample type corresponding to your
sample and then press .
For guidance on testing other wine types, see
Page 10.
You can exit a test at any time by touching
the button on the bottom left of the
screen.

14
5. Enter the Sample ID
If the analyzer is configured for Sample ID
(see Page 28), you will be presented with the
Enter Sample ID screen.
Enter the ID and touch Enter.
To switch the keyboard from portrait to
landscape, touch the button on the bottom
left of the keyboard.
6. Enter strip index number
Check the number on
the strip vial and match
it to one of the numbers
on the screen. Select the
number and press .
If the number does not
appear on the screen, tap "New Strip Index #",
press , then enter the number on the on-
screen number pad.
If you have finished a vial of strips, you can
remove its number from the list by selecting
the item and touching .
When you are using a vial of strips for the first time, there is a
chance that the analyzer will require a wireless Internet
connection to download new calibration data. See Page 9 for
more information.
7. Remove a test strip from its vial
Firmly close the vial immediately.
Ensure that your hands are clean and dry to
avoid contaminating or damaging the test
strips.
Once you have removed the test strip from a
vial, you should conduct the test within 10
minutes