CONTROL SOLUTIONS LogTag VFC400-WiFi Specification sheet

www.vfcdataloggers.com
VFC400-WiFi
Wireless Vaccine
temperature
monitoring Data
Logger
Product User
Guide
Document Release Version: 1.3
Published 29. May 2019
Copyright © Control Solutions, 2018-2019
Control Solutions

VFC400-WiFi User Guide 2
Contents
Safety Information 4
Liability 4
Battery Life 4
Disclaimer 4
Typographical Conventions 4
Introduction 5
Features 5
Case 6
Buttons 6
Display and LED 6
Sensors 6
Communication 6
Power Supply 6
PDF 6
What You Need 7
Required Items 7
Optional Items 7
Preparing a VFC400-WiFi for first use 8
In the office 8
On-site 8
Inserting the Batteries 9
Configuring the VFC400-WiFi for logging 10
Finalizing the configuration 15
Adding the Sensor and the Power Supply 17
Wireless Connectivity 18
Transferring data to LogTag® Online 18
Wireless and Cloud Symbols 19
Testing your wireless and network connection 20
Troubleshooting 22
Display Overview 24
Powering the VFC400-WiFi 26
Low power operation 27
Audible Alarm 28
Real Time Clock 28
Starting the Logger 29
Push button start 29
Push Button Start with Start Delay 30
During Recording 31
Marking a reading with an inspection mark 33
Clearing an Alarm 33
Paused Readings 34
Sensor is disconnected 34
Power Save 36
Clearing the Min/Max Values 36
Reviewing Day Statistics on the Display 37
Stopping the VFC400-WiFi 41
Plugging the VFC400-WiFi into a USB port 42
Accessing the files 43

VFC400-WiFi User Guide 3
Interpreting the Data 44
Data Evaluation - Report 44
Data Evaluation - Data List 46
Data Evaluation - Day Summary 48
Resetting the Logger 49
Hibernating a VFC400-WiFi 49
Airplane Mode 51
Replacing the Batteries 51
Technical Specifications 52

Safety Information VFC400-WiFi User Guide 4
Safety Information
The VFC400-WiFi PDF USB temperature logger contains two "AAA" non-rechargeable backup batteries. These
batteries can be replaced as detailed in Replacing the AAA batteries.
The logger also contains a non-rechargeable secondary backup battery (LiMnO2 CR2032 coin cell).
When this battery indicates “LOW” ( ), it can be replaced by a qualified technician.
Please contact your distributor for further information and also refer to the section
about Powering the VFC400-WiFi on page26.
Keep out of the reach of children!
Do not expose the logger to extreme temperatures as it may lead to the destruction
of the battery and may cause injuries.
Empty batteries should be recycled or disposed of according to your local regulations.
Liability
Control Solutions’s standard warranty terms apply. A copy can be requested by emailing
[e-mail]. In addition, Control Solutions shall not be held liable:
lIf the device was used beyond Control Solutions’s stated limitations
lFor any claims due to the improper storage and use of the device
lFor any problems with refrigeration units
lFor the bad quality of the monitored goods, if any
lFor incorrect readings if the device was used with a low battery
lFor consequential loss
Battery Life
The batteries in the VFC400-WiFi are designed to power the device for up to 3 months in case of a power
failure, provided:
lfresh batteries from a reputable manufacturer are used
ldata are reviewed on the display no more than once daily for 30 seconds
lthe recording interval is not shorter than 5 minutes
la strong wireless signal is available where the VFC400-WiFi is deployed
lthe acoustic alarm is not active over long periods
lthe device is stored and operated according to Control Solutions’ recommendations
Please refer to Powering the VFC400-WiFi on page26 for more information.
Disclaimer
The VFC400-WiFi monitors temperature exposure and not the quality of the goods it accompanies. Its purpose
is to signal if product quality evaluation/testing is required.
Typographical Conventions
Text in this font refers to buttons on the VFC400-WiFi.
Text in this font refers to option settings, dialogue boxes or actions to be taken in Control Solutions VTMC.
Text in this font describes features of the product.
WiFi, cloud connection, airplane, power and low battery symbols may not be shown on all screens.

Introduction VFC400-WiFi User Guide 5
Introduction
The Control Solutions VFC400-WiFi temperature data logger automatically uploads real-time temperature
data1 to your Control Solutions Online cloud account via your existing wireless network. It features a large,
easy-to-read display, along with many familiar attributes known from the Control Solutions family of data
loggers. These include non-volatile memory for up to 16129 temperature readings and a statistical memory,
storing maximum and minimum reading as well as alarm duration for each of the last 30 days.
During recording the display shows…
… the current temperature (of the most recent reading)
… the alarm status, current time and battery status
… an alarm trigger summary of up to the last 30 days (today and 29 days previous)
… the wireless and cloud connection states
At set intervals the VFC400-WiFi uploads these data to your Control Solutions Online cloud account, where they
can be viewed, analyzed and shared with others, or downloaded for further analysis.
Logged temperature data can also be viewed on any PC by plugging the unit into a computer’s USB port via a
micro-USB cable, for example if a Wireless Network is unavailable. View a PDF file, which can be accessed
using PDF software such as Acrobat Reader, or download the data to the free companion software Control
Solutions VTMC, where you can display data in chart, list or summary formats.
Features
The VFC400-WiFi temperature logger features a large display, wireless and USB connectivity with a familiar
LogTag feel.
1 Please refer to Transferring data to LogTag® Online (on page18) for detailed information about upload frequency

Features VFC400-WiFi User Guide 6
Case
lMounting lug for secure fastening of logger to fixtures
lMicro-USB socket with attached protective cap
lGold-plated, high-quality temperature sensor socket
lRobust polycarbonate case, IP51
l2 user replaceable AAA backup batteries, accessible via a compartment at the rear of the product
Buttons
lSTART/CLEAR/STOP button( ); can be used to start and stop the unit. An active alarm is cleared using
this button. It is also used to exit the statistics review.
lREVIEW/MARK button ( ); can be used to enter the statistics review and to scroll through the
statistical data directly on the display. It is also used to place an inspection mark in the data listing and
to reset the min/max display.
lFN button ( ); press together with one of the other buttons to upload data or enter Airplane mode.
Display and LED
The extra large display shows current, minimum and maximum temperatures and if alarm events have
occurred for the current day and up to 29 days in the past. Details of any alarm event can be checked by
inspecting the statistics history on the logger's display or in more detail via your LogTag® Online cloud
account. In addition, a red Alarm LED shows if an alarm event has occurred.
Sensors
The VFC400-WiFi will accept any sensor from the ST100 product range, up to 3m length.
Communication
The VFC400-WiFi offers two means of downloading data
1. Via the built-in Micro USB socket and connection to a PC
2. Via WiFi connection to Control Solutions Online
The unit is configured via a PC using Control Solutions VTMC.
Power Supply
The same USB socket that is used for communication is also used for providing power to the VFC400-WiFi,
using an external 5V USB power supply. The AAA backup batteries maintain all functionality when USB power
is not connected. A long-life CR2032 lithium backup battery maintains essential functions if the AAA batteries
are empty and external power is not supplied.
PDF
The VFC400-WiFi will generate a detailed PDFreport when plugged into a USB port of a PC. The PDF report
shows a summary of the trip, presents the data in chart and list format and also includes a day summary page,
showing an overview of the statistics collected. A CSV file of the data list is also available.

What You Need VFC400-WiFi User Guide 7
What You Need
Required Items
In addition to your Control Solutions VFC400-WiFi Vaccine wireless temperature monitoring logger you will
need the following:
la Control Solutions Cloud Account for storing and accessing uploaded data
la PC or mobile device with a modern web browser to set up your account and to view the data
la WiFi network capable of WPA/WEP security and an internet connection for uploading data to the cloud
server
la Micro-USB to USB-A cable to connect the VFC400-WiFi to your PC
lan external probe.You can use any probe of the ST100 series
lfor configuration - a PC running Windows 7 or later and Control Solutions VTMC version 3 installed
la 5V/5W USB power supply to power the unit permanently via the USB socket
Optional Items
In addition to the above, following items are useful accessories:
l2 x AAA batteries as a backup if main power fails
For optimum performance we recommend Lithium Iron Disulphide batteries, such as
Energizer® Ultimate Lithium™ Batteries, or similar batteries from other reputable
manufacturers.
la small Phillips screwdriver to open the battery compartment
la wallmount bracket, which can be used, for example, to attach the VFC400-WiFi to the side of a fridge
la Glycol buffer, which simulates environmental behaviour of a vaccine vial

Preparing a VFC400-WiFi for first use VFC400-WiFi User Guide 8
Preparing a VFC400-WiFi for first use
Before your VFC400-WiFi can record temperature data and upload readings to LogTag® Online you need to
perform a few setup steps.
In the office
These steps are completed in your office, using a PC connected to the internet.
linstall the backup batteries into the unit
ldownload and install the latest version of Control Solutions VTMC 3. You can do this from the Control
Solutions, Inc. Software Download page
lconfigure the unit using Control Solutions VTMC
lconnect the VFC400-WiFi to your wireless network using the LogTag Online Connection Wizard
lcomplete the device setup in LogTag® Online, including associating the VFC400-WiFi with a location
On-site
Once you have completed this process you can take the logger to the location where it will be installed and
lconnect external power
lconnect a sensor and place the unit, preferably using a wall mount bracket
lstart the logger
ltest the connection to LogTag® Online to verify data can be successfully uploaded.
You can find more information about connecting and setting up your network connection in Wireless
Connectivity on page18.

Preparing a VFC400-WiFi for first use VFC400-WiFi User Guide 9
Inserting the Batteries
The VFC400-WiFi operates with two AAA backup batteries.
1. Remove the screw from the rear compartment lid.
2. Remove the lid, exposing the battery compartment.
3. Insert the AAA batteries in the correct orientation, as shown. The polarity is marked inside the battery
compartment.
4. Replace the rear cover and the screw.
5. Press any button to turn on the display.

Preparing a VFC400-WiFi for first use VFC400-WiFi User Guide 10
Configuring the VFC400-WiFi for logging
Before a VFC400-WiFi logger can be used, it must be configured with the parameters required for
lstarting and recording temperature values
ltriggering alarms
lconnecting to the local WiFi network
lconnecting to your cloud account
This is done using Control Solutions VTMC software, which can also be used for downloading and analyzing
data. Control Solutions VTMC includes the LogTag® Online Connection Wizard, which will allow you to set
wireless and network settings and register the VFC400-WiFi against your Control Solutions Online account.
lStart the Control Solutions VTMC software.
lRemove the protective cap from the logger's USB socket and plug the Micro USB end of the cable into
the socket. Plug the other end of the cable into a USB socket on your computer and wait for the drivers to
be installed.
lSlot the logger into the interface, contacts facing down and towards the rear of the interface.
lFrom the menu click LogTag - Configure; Control Solutions VTMC will display the contents of your
VFC400-WiFi for reviewing or editing configuration settings.
Standard Configuration Settings
The standard configuration is similar to those of other LogTag logger products and includes settings such as
User ID, start method, pre-start recording, logging interval and duration, start delay, and password.
Adjust the settings as required. For detailed information about each parameter please read the section about
Configuring a LogTag for logging in Control Solutions VTMC’s User Guide or press F1 for help.

Preparing a VFC400-WiFi for first use VFC400-WiFi User Guide 11
VFC400-WiFi Start Options
During configuration with Control Solutions VTMC you can decide when the VFC400-WiFi starts taking
temperature readings:
Push button start
The logger will start taking temperature readings as soon as you have pressed the START/CLEAR/STOP button
(see Starting the Logger on page29).
When you choose the push button start option, you can select to record Pre-start readings or Begin recording
after a delay:
lIf you select pre-start readings, the VFC400-WiFi starts recording as soon as it is configured and will
continue to do so until you start the unit. No alarms are processed while pre-start readings are being
taken, pre-start readings will not appear in the PDF file, and no PDF file will be generated. Using pre-start
readings is a good way to avoid data loss if you forget to start the unit, as you can still access the data
using Control Solutions VTMC.
lIf you configure the VFC400-WiFi to start after a delay period, the logger will not immediately record
temperature readings after you have pressed START/CLEAR/STOP, but start a countdown timer instead,
and record readings only after the timer has ended. The value for the timer is set during configuration. If
enabled, it will continue to take pre-start readings.
Date/Time start
The logger will start taking temperature readings at the date and time you specify (local time). You cannot
combine a date/time start with pre-start readings or the start delay function.
Alarm Configuration Options
The VFC400-WiFi can display an alarm if either of the configured alarm trigger conditions have been met. This
is indicated on the display by showing the Alarm Indicator ( ) and the Day Alarm Marker for
today ( ). Additionally, the red LED will blink every 4 seconds.
If an alarm is triggered, a notification is also sent immediately to your LogTag® Online account.
Each alarm trigger condition consists of a threshold temperature value, an activation type (which can be
instant, consecutive or accumulative1) and a delay time, if it is not an instant alarm.
If an alarm trigger condition requires readings to exceed an upper threshold temperature it is called an upper
alarm. If an alarm trigger condition requires readings to go below a lower threshold it is called a lower alarm.
All alarm trigger conditions are configured in the Alarm Settings tab during configuration of the logger with
Control Solutions VTMC.
The screen shows an example where:
1
lInstant = one temperature reading is above (below) the threshold
lConsecutive = temperature readings are above (below) the threshold for the time defined in the activation delay without interruption
lAccumulative = temperature readings are above (below) the threshold for the total time defined in the activation delay time, but may not necessarily
be sequential

Preparing a VFC400-WiFi for first use VFC400-WiFi User Guide 12
lthe upper alarm is triggered when the temperature is 10.0°C or above for an accumulative time of 10
hours.
lthe lower alarm is triggered when the temperature is -0.5°C or below continuously for 1 hour.
Once an alarm has triggered, the alarm indicator ( ) remains shown until the unit is reconfigured. The day
alarm marker remains shown until midnight, then it turns off and the marker for the previous day is shown
( ) to indicate the alarm was registered against what is now the previous day. When midnight passes next,
this marker will move to and so on.
Alarm Re-triggering
A note on alarm re-triggering: As soon as an alarm is triggered, the corresponding delay time (but not
any others) resets to zero and alarm processing starts again. The alarm processing for all other alarm
delays is not affected. Therefore, accumulative or consecutive alarms will re-trigger, if the alarm
conditions are met again, and the Alarm Indicator ( ) and the Day Alarm Marker ( ) will be shown,
even if any previous alarm was cleared. Clearing an Alarm does not reset any of the delay values.
File Settings
Select the File Settings tab for the settings that decide which files are generated when the VFC400-WiFi is
plugged into a computer's USB port, and what information these files contain.
Select as many file formats as you wish to generate.
Parameters that influence the appearance of all files are:
lsetting of the temperature units used in the files
The temperature unit for the PDF file is also used for the units shown on the display.

Preparing a VFC400-WiFi for first use VFC400-WiFi User Guide 13
ldate and time format
ltime zone and MKT values
Parameters specifically influencing the appearance of the PDF file are:
lscaling parameters for the chart
lshowing or hiding gridlines
lshowing or hiding alarm threshold lines
lcreation of the data list
For detailed information about each parameter please read the section about Configuring a LogTag for logging
in Control Solutions VTMC’s User Guide or press F1 for help.
These settings only apply to the files generated when plugging the VFC400-WiFi directly into a PC.
Settings for the appearance of online reports are made in LogTag® Online.

Preparing a VFC400-WiFi for first use VFC400-WiFi User Guide 14
Advanced Settings
Select the Advanced Settings tab for additional configuration settings. These settings decide how some of the
elements are displayed on the unit's own display and also set other options specific to the VFC400-WiFi.
Parameters that influence the appearance of the display are
lAllowing a user to reset the trip's minimum and maximum values on the display during recording
Parameters influencing specific behaviour of the VFC400-WiFi are
lleaving the alarm turned on, even if readings return to the normal temperature range again
lallowing the user to stop the logger with the START/CLEAR/STOP button
For detailed information about each parameter please read the section about Configuring a LogTag for logging
in Control Solutions VTMC’s User Guide or press F1 for help.
Wireless and Network Connection Settings
The VFC400-WiFi's wireless connection parameters are set up on the WiFi Settings tab.
Select Leave wireless and network settings unchanged if you are only changing the logging parameters, but
want the VFC400-WiFi to connect to the same network as before. Selecting this option will retain the wireless
and network parameters currently stored inside the unit.
Select Start the Control Solutions Online Connection Wizard if you need to enter new settings, or amend
existing settings. In this case the Control Solutions Online Connection Wizard will start as soon as Control
Solutions VTMC has finished configuring the VFC400-WiFi for logging. Factory-new units do not have any
settings and you will need to run the wizard to connect these to LogTag® Online.

Preparing a VFC400-WiFi for first use VFC400-WiFi User Guide 15
Finalizing the configuration
Click Configure to upload the configuration data to the VFC400-WiFi.
If selected, the LogTag® Online Connection Wizard will now start.
When the configuration is complete, unplug the VFC400-WiFi from the USB socket and replace the protective
cap.
If you wish to configure more VFC400-WiFi units with the same configuration, insert the next loggers into the
USB socket, wait until they are ready for configuration and click Repeat Configure. Alternatively you can use the
Profile function to configure multiple units with the same settings.
You can upload the configuration to a VFC400-WiFi logger as often as required.
LogTag® Online Connection Wizard
If you have selected Start the Control Solutions Online Connection Wizard during the configuration of the
VFC400-WiFi, the wizard will now start.
The LogTag® Online Connection Wizard is a separate program that
lregisters the VFC400-WiFi against your account
lenables you to create an account with Control Solutions Online (or sign in if you already have an account)
lallows configuration of wireless and network parameters of your VFC400-WiFi
You can find detailed information about the LogTag® Online Connection Wizard in its online help at
http://www.vfcdataloggers.com/lto/.
The LogTag® Online Connection Wizard starts after the logger has been configured for other parameters such
as logging and alarms. When the wizard runs, the wireless and network parameters you enter are used to
check that the VFC400-WiFi can establish a connection with your wireless network and the LogTag® Online
cloud server. The VFC400-WiFi's display will update during these connection checks.
Initially, the display shows the logger is ready to be started.
When the Wizard displays Testing Connection, please wait,
first, the wireless connection is tested. If the connection is
successful, the screen on the right shows.
If the wireless connection does not succeed, the "No wireless
connection" symbol ( ) is shown instead, and the test
aborts.
Please refer to the section about Troubleshooting (on page22)
for reasons why the wireless connection can fail.

Preparing a VFC400-WiFi for first use VFC400-WiFi User Guide 16
After successful completion of the wireless network test, the
Wizard establishes a connection between the VFC400-WiFi
and the LogTag® Online cloud server. When completed
successfully, the screen on the right shows.
Please refer to the section about Troubleshooting (on page22)
for reasons why the cloud server connection can fail.
The VFC400-WiFi is now ready to be deployed.

Preparing a VFC400-WiFi for first use VFC400-WiFi User Guide 17
Adding the Sensor and the Power Supply
Before the VFC400-WiFi can record temperature data you will need to connect an external sensor.
The VFC400-WiFi accepts any ST100 sensor. Plug the sensor into the socket located at the bottom of the
device, as shown below.
For stationary applications we strongly recommend you connect a power
supply (see Powering the VFC400-WiFi).
Remove the protective cap and insert the USB connector.
Note that the wider part of the connector is oriented towards the rear of the
product.

Wireless Connectivity VFC400-WiFi User Guide 18
Wireless Connectivity
The VFC400-WiFi is designed to upload real time data to the LogTag® Online cloud application. To do this, the
logger must be connected to a wireless network (WLAN) and be able to connect to Control Solutions's cloud
service on the internet.
Before real-time data can be uploaded, a number of setup steps need to be completed:
lYou need to have access to a LogTag® Online account.
You can create an account by navigating to http://logtagonline.com and clicking Create an Account. You
can also use the LogTag® Online Connection Wizard to navigate to this page.
lThe logger needs to be configured for connecting to your network and to LogTag® Online.
This is done with the Control Solutions Online Connection Wizard during the logger's configuration.
lThe logger needs to be registered against your team's account.
The LogTag® Online Connection Wizard will automatically register the VFC400-WiFi for you if you
provide your sign in details when you run the Wizard. You can also register the device by signing in to
your LogTag® Online account at http://logtagonline.com and completing the steps for device
registration.
lThe logger needs to be associated ("attached") to a location.
The logger's uploaded real-time readings will only appear in LogTag® Online, if you have allocated a
place where the data can be stored. In LogTag® Online this is called a location, and associating the
logger with this location is called attaching the logger.
Unlike other loggers uploaded via one of the wireless interfaces a VFC400-WiFi does not
generate files on Control Solutions Drive.
You can find more information about locations, device registration and attaching loggers in the LogTag®
Online help.
Before you start the LogTag® Online Connection Wizard please make sure you have following information:
lYour wireless network name (the network SSID)
lYour wireless network password (WiFi password)
lYour LogTag® Online account name (email address)
lYour LogTag® Online sign in password
lIf you are part of more than one team, the name of the team for which you want to register the logger

Transferring data to LogTag® Online
Temperature readings
Data recorded by the VFC400-WiFi are stored in internal memory, ready to be uploaded to the LogTag® Online
cloud server. The upload to the server is taking place at pre-determined times that cannot be changed:
lIf the logger is permanently powerd via USB power supply
The upload to the server takes place every log interval, or multiple thereof, but no sooner than every 5
minutes.
For example, a logger that records every 2 minutes will upload readings to the cloud server every 6
minutes, a logger that takes a reading every 15 minutes will upload readings to the cloud server every 15
minutes.

Wireless Connectivity VFC400-WiFi User Guide 19
If a logger is scheduled to take a temperature reading and also upload readings to the server at
the same time, the temperature reading will always be taken first before the upload starts.
lIf the logger is powered via the AAA batteries
The upload to the server takes place every log interval, or multiple thereof, but no sooner than every 60
minutes.
For example, a logger that records every 15 minutes will upload readings to the cloud server every 60
minutes, a logger that records every 45 minutes will upload readings every 1½ hours.

Alarms
As soon as a VFC400-WiFi triggers an alarm, this is reported to the cloud server immediately, regardless of the
upload interval for temperatures.

Wireless and Cloud Symbols
On the display, wireless connection and link to the LogTag® Online cloud server are shown using the wireless
and cloud connectivity symbols.
This symbol shows the status of the last connection to the wireless network (WLAN). If the circle
shows a tick, the VFC400-WiFi 's last connection to the wireless network was successful.
When USB power is supplied, the VFC400-WiFi remains connected to the WLAN.
This symbol is shown when the last connection to the wireless network was successful and the
device is powered by batteries.
When the VFC400-WiFi is powered by the AAA batteries, it does not remain connected to the WLAN
to preserve battery power. Instead, the connection is re-established automatically at the next
scheduled data upload to the LogTag® Online cloud server.
This symbol shows the status of the last connection to the LogTag® Online cloud server. If the circle
shows a tick, the VFC400-WiFi 's last connection to LogTag® Online was successful.
This symbol shows while the VFC400-WiFi is transmitting data to the LogTag® Online cloud server.
Typically you will see wireless and cloud symbols together, unless there is an issue. Please see
Troubleshooting on page22 for further details about the various symbol combinations that can be displayed.

Wireless Connectivity VFC400-WiFi User Guide 20
Testing your wireless and network connection
You can verify that uploading data to the LogTag® Online cloud server is working by initiating a Connection
Test directly from the VFC400-WiFi.
During the connection test the logger will
lconnect to your wireless network using the network name and password you entered during the setup
with the LogTag® Online Connection Wizard
lconnect to the LogTag® Online cloud server
lexchange a pre-defined set of messages with the cloud server that verify the device's identity
lrequest any information from the server such as the current time
lupload any new temperature and event data that have been recorded since the last connection to the
cloud server
lclose the connection
This will give you immediate feedback if the logger's wireless and network settings were configured correctly.
To initiate the connection test, press and hold the FN and
REVIEW/MARK buttons simultaneously for approx. 6
seconds. During this time the Upload arrow symbol ( ) on the
display blinks.
Release the buttons when the symbol stops blinking and turns
on permanently.
The VFC400-WiFi will now attempt to access the wireless
network (the WLAN symbol shows an empty circle).
This process is typically very short, so you may not see this
screen.

Once the VFC400-WiFi has successfully connected to the
wireless network (the WLAN symbol shows a tick) it will
attempt to connect to the LogTag® Online cloud server (Cloud
symbol shows an empty circle).
Depending on network traffic this can take a few seconds.