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Device layout

Image Removed

Image Removed

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Start and Stop buttons

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Status
colourGreen
titlestart button

...

Status
colourRed
titlestop button

There are two buttons on the device located under the display. The device only acknowledges a button press after you hold the button for 5-8 seconds. This delay is to prevent accidental button pressing during a shipment. Please note that if you hold the button for longer than 12 seconds, the button press is invalid.

To start or stop a shipment using the buttons, follow these steps

1️⃣ Press and hold the

Status
colourGreen
titlestart button
/
Status
colourRed
titlestop button
for 5-8 seconds to activate/deactivate the device.

2️⃣ The

Status
colourYellow
titleShipment LED
lights up when the device registers the button press as valid and remains on for 3 seconds. The lit-up led light means that you can release the button.

Note

The action is invalid if you keep pressing the

Status
colourGreen
titleStart button
or the
Status
colourRed
titlestop button
for more than 12 seconds.

Note

You should only press the

Status
colourGreen
titlestart button
or the
Status
colourRed
titlestop button
once every 60 seconds. If you press the buttons more than once within a minute, only the first command is valid (i.e., the LED will not turn on for 3 seconds).

When you press a button, the device wakes up. It attempts to connect to the Controlant cloud-enabled Supply Chain Monitoring (SCM) platform. You can only trigger a "button press" wake-up once every 30 minutes.

LED indicators

...

Status
colourYellow
titleShipment LED

alarm bell LEDImage Removed

Status
colourRed
titleAlarm LED

The Saga logger has two LED indicators next to the display on the right. The behavior of the

Status
colourYellow
titleShipment LED
and the
Status
colourRed
titlealarm LED
depends on the
Status
titleShipment status
. These LEDs react to a press of the
Status
colourGreen
titlestart button
or
Status
colourRed
titlestop BUTTON
.

Display

The Saga logger has an E-Ink display that updates regularly to indicate the device status. The device does not require battery power to display the data, only when updating the displayed information. It can display temperature in Celsius (°C) or Fahrenheit (°F) depending on the configuration.

Display details

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Display sections

The display area has five sections. See the image below.

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Display functionality

The following events trigger the display to be updated

1️⃣ Change in the

Status
titleShipment Status

2️⃣ Change in the

Status
titlelast cloud connection status

3️⃣ There's a temperature value update every 10 minutes when the device measures the temperature. If there has been a change since the last measurement, the following data on the display updates too:

  • Alarm status

  • Minimum/Maximum temperature (when the device is in shipping mode)

  • Battery percentage

4️⃣ The battery icon updates when the device is plugged in to a charger. A battery symbol with a flash is displayed, no percentage shown.

5️⃣ Once the logger is fully charged — but still plugged in to a charger — a battery symbol with a flash is displayed, accompanied by 100% value.

6️⃣ The battery icon updates when the device is unplugged from a charger. A battery symbol with percentage is shown.

Shipment status

The available modes for the device are the following:

Standby mode

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A device that has not received shipment information shows the text

Status
titleFree
at the
Status
titleshipment status
. It also shows the last measured temperature, the remaining battery level, and the
Status
titlecloud connection status
.

Paired mode

...

When a device has received shipment information from the cloud, but starting conditions have not been met, the

Status
titleShipment status
shows the text
Status
titlepaired
 

Shipping mode

...

A device in a shipment shows

Status
titleshipping
at the
Status
titleshipment status
. The image here displays a device in shipment with an
Status
titleactive alarm
(indicated with an
Status
titleAlarm icon
🔔 ). The
Status
titleCloud connection status
shows that the last sync/connection was successful. The maximum temperature value is above the latest measured temperature, and the minimum temperature is below. The alarm icon is present depending on the rules of the shipment.

For example: if the rules are that the temperature should not go above 24°C and the max is 24.8°C, then the alarm icon is visible. If there's no such a rule, there's no

Status
titlealarm icon
either.

Shipping mode - still in ignore-period

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When the device receives the shipment information before the end of the ignore-period, the Min and Max values will show -.-°C. After that, it shows the minimum and maximum temperature during the shipment. 

Stopping mode

...

If the

Status
colourRed
titleStop button
is pressed while a device is in a shipment, the text displayed in the
Status
titleShipment status
will change to
Status
titleStopping
.

Info

If all stop conditions are met before the display has refreshed to show

Status
titleSTOPPing
, it goes right to
Status
titleSTopped
.

Stopped mode

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If a shipment is successfully stopped (i.e., all stop conditions are met), the

Status
titleShipment status
will show the text
Status
titlestopped
until:

  • The start of a new shipment, or

  • The device is charging, or

  • Twenty-four hours have passed.

Info

If an

Status
titleAlarm icon
🔔 appeared during the shipment, it will also stay on the screen until one of the above conditions are met.

If conditions for stopping the shipment are not met, the

Status
titleShipment status
shows
Status
titleshipping
again.

Cloud connection status

Booting up

The

Status
titleCloud connection status
is empty when the device boots up.

Syncing

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The

Status
titleCloud CONNECTION status
shows a
Status
titlesyncing icon
when connecting to and syncing with the cloud.

Connected to the cloud

...

If sync to the cloud is successful, the

Status
titleCloud CONNECTION status
will show a
Status
titlecloud icon with a checkmark
, indicating a successful cloud connection.

Connection fails, or sync is not completed

...

If a connection fails or sync is not completed (e.g., due to a bad cellular connection), the

Status
titleCloud CONNECTION status
will show a
Status
titlecloud icon with an X
. The icon stays like this until the device attempts to sync again. Then it shows a
Status
titlesyncing icon
until it can indicate the actual status of the connection.

Note

This means the display can show relatively old information, depending on the wake-up interval setting (differing from 1-12 hours). The default wake-up interval is 12 hours when a device is not in a shipment.

Flight mode

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Flight mode is automatically activated during flights. When the device is in flight mode, the display indicates to the user that the flight mode is active by showing the

Status
titleflight icon
in the lower right corner of the display. The display continues to update during flight mode whenever there's a change in the measured temperature, though it doesn't attempt to establish a connection to the cloud to upload data.

"Device needs service" status

At Controlant we actively and routinely monitor the Saga device fleet to optimize performance and identify potential issues. If a device requires service, the display will update to

Status
titleDevice needs service
after it has woken up and connected to the Controlant cloud as shown below.

Info

The device can only display the message when its status is free (not paired or shipping). We encourage you to set such devices aside and follow the existing process to return them.

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Note

If a device is already recalled and showing

Status
titleDevice needs service
when it is put in a shipment, the display will change to normal shipping behavior after the device has been paired to a shipment and the function of the device will not be restricted. This is, however, not recommended as the device might have potential issues.

The table below explains further what the device will display after receiving the service message, depending on the shipment status.

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Shipment state

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SCM logger status

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Device shipment status

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Display when operational status is not active

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Draft

...

Status
colourGreen
titleFREE

...

Status
titlefree

...

Display message:

Status
titleDevice needs service

...

Ready

...

Status
colourRed
titleIN A SHIPMENT

...

Status
titlepaired

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Normal behavior, showing

Status
titlepaired
in the Shipment status window.

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Shipping

...

Status
colourRed
titleIN A SHIPMENT

...

Status
titleshipping

...

Normal behavior, showing

Status
titleshipping
in the Shipment status window.

...

...

Delivered

...

Status
colourGreen
titleFREE

...

Status
titlefree

...

After the device is stopped, the shipment is delivered, and the device becomes free. The display will, however, not go immediately to

Status
titleDevice needs service
as the device enters a "grace period" when a shipment is delivered, where the display is not updated for 24 hours and shows
Status
titlestopped
in the Shipment status window.

...

This is intended for the user to have access to the shipment information on the display for a short period after the shipment is delivered. After 24 hours, the display will shift to

Status
titleDevice needs service
.

...

Closed

...

Status
colourGreen
titleFREE

...

Status
titlefree

...

Display message:

Status
titledevice needs service

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Display prioritization while not in a shipment

The

Status
titleDevice needs service
display takes precedence over Low power mode, charging, and USB display notifications when not in shipment.

Temperature range

The display is only active when the temperature is between 0°C and 50°C. However, the device continues to function in the operating temperature range even when the display is inactive. The display shows a warning when the temperature is below 0°C or above 50°C. See below.

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LED behavior

The following table lists the LED behavior based on button activity, shipment, and alarm status.

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Button activity

...

Status
titleno button

...

Not in Shipment

...

Status
colourYellow
titleShipment LED
Status
titleon
for 3 seconds

...

No activity

...

Status
colourYellow
titleShipment LED
Status
titleoff
Status
colourRed
titleAlarm LED
Status
titleoff

...

Assigned to shipment

...

Status
colourYellow
titleShipment LED
Status
titleon
for 3 seconds

...

No activity

...

Status
colourYellow
titleShipment LED
Status
titleblinks
every 5 seconds after the first successful wake-up after the shipment is created

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In shipment, no alarm

...

Status
colourYellow
titleShipment LED
Status
titleon
for 3 seconds

...

Status
colourYellow
titleShipment LED
Status
titleon
for 3 seconds

...

Status
colourYellow
titleShipment LED
Status
titleblinks
every 5 seconds

...

In shipment, active alarm

...

Status
colourYellow
titleShipment LED
Status
titleon
for 3 seconds

Status
colourRed
titleAlarm LED
Status
titleon
for 3 seconds

...

Status
colourYellow
titleShipment LED
Status
titleon
for 3 seconds

Status
colourRed
titleAlarm LED
Status
titleon
for 3 seconds

...

Status
colourYellow
titleShipment LED
Status
titleblinks
every 5 seconds

Status
colourRed
titleAlarm LED
Status
titleblinks
every 5 seconds

The

Status
colourYellow
titleShipment LED
starts blinking as soon as the device receives the shipment information, whether the shipment has started or not.

Temperature alarms during a shipment

When the device is in a shipment with one or more temperature warnings defined, the device can enter an

Status
titleAlarm state
if the temperature goes outside the specified boundaries and time limit. The alarms that trigger the
Status
titleAlarm state
depend on the severity settings (low, medium, and high) used to determine whether a manual inspection is required after the shipment is delivered.

Admin users in Account admin can modify this on the SCM platform (SCM Settings → Require manual inspection for shipments with). The default behavior is that the

Status
titleAlarm state
is activated if the excursion severity is medium or higher.

If an event occurred that triggers the alarm state during the shipment, the

Status
titleAlarm state
is visible on the device in two places: 

  • The

    Status
    colourRed
    titleAlarm led
    blinks. 

  • The display shows the

    Status
    titleAlarm icon
    🔔 .

Light events during a shipment

The Saga logger has a light sensor positioned below the display.

The device measures light intensity every 10 seconds and compares the last measurement value to the current one. It reports a

Status
titlelight event
if it reaches a certain threshold in change. Subtle changes in light intensity (e.g., sunrise and sunset), do not trigger an event.

Light events only appear in the SCM system and not on the device itself. A maximum of six events are logged every hour. If more than six events occur per hour, the latest events are discarded until the oldest event is more than 1 hour (60 minutes) old.

In

Status
titlehibernation mode
, the light sensor turns off, and
Status
titlelight events
are not detected.

Wake-up behavior

Info

When a device wakes up, the modem is turned on. The device attempts to connect to the cellular network, the Controlant cloud, and services to fetch information, upload data, or update the firmware. It wakes up at various intervals, depending on its status and other events.

  • A device not in a shipment is considered to be in

    Status
    titleStandby mode
    and wakes up every 12 hours. There are exceptions, as detailed below.

    • A device in a

      Status
      titleDRAFT shipment
      behaves as if it is not registered to a shipment because the creation of the shipment has not been finalized.

    • A device in a

      Status
      titleREADY state
      shipment wakes up every 12 hours - except if the start shipping method is
      Status
      titlegeofence
      ,
      Status
      titleGEOFENCE or button
      , or
      Status
      titlespecify time
      . In these cases, the device wakes up according to a wake-up schedule defined for the shipment.

  • A device in an active shipment wakes up according to the wake-up schedule defined in the shipment (i.e., 1 hour, 2 hour, 3 hour, 6 hour, or 12 hour intervals).

The newly defined wake-up interval is updated after the next wake-up that follows the shipment creation.

  • A device attempts to wake up immediately and report to the Controlant cloud when an

    Status
    titleAlarm STATE
    occurs. After waking up to report the
    Status
    titleALARM STATE
    , the device will return to the configured wake-up schedule.

  • The device wakes up every time the buttons are pressed, but no more than once every 30 minutes.

    • After a button has been pressed, the device wakes up every hour for 5 hours. After 5 hours, the device returns to the previous wake-up schedule.

    • If a device is not registered to a shipment or a wake-up schedule determined by the shipment, the device returns to the previous default wake-up schedule.

  • A device wakes up when plugged in to be charged. It wakes up when it's fully charged and again when it's removed from the charging station.

  • A device in shipment also wakes up when it exits

    Status
    titleflight mode
    .

A device does not detect that it is registered to a shipment unless it has woken up and reported to the Controlant cloud to receive the shipment message. The device behaves as if it's in

Status
titleStandby mode
until it has successfully received the shipment message. 

If the start shipping method is set to

Status
titlespecify time
and the start time is set to a time in the future, the device uses the updated wake-up interval after the next wake-up, even though the shipment has not started. 

Device not registered to a shipment - Standby mode

A device not registered to a shipment shows:

  • The latest temperature measurement of the device.

  • The battery level (charging or not charging) and the battery percentage (10-100%)

  • Connection status at the last wake-up.

    • If sync to the cloud was successful at the last wake-up, the display shows a

      Status
      titlecloud icon with a checkmark
      indicating a successful cloud connection.

    • If a connection fails or sync is not completed (e.g., due to a bad cellular connection), the display will show a

      Status
      titlecloud icon with an X
      .

    • The

      Status
      titlecloud CONNECTION status
      is updated at every wake-up. A device in
      Status
      titlestandby mode
      wakes up every 12 hours.

The

Status
colourYellow
titleshipment LED
, and the
Status
colourRed
titleAlarm LED
should not be blinking on the device. A blinking
Status
colourYellow
titleShipment LED
indicates that the device is in a shipment or has received shipment information. A blinking
Status
colourRed
titleAlarm LED
indicates that an
Status
titleALARM STATE
has occurred. 

Device during a shipment - Shipping mode

The device, during an active shipment, has the following features:

  • On the display:

    • Status
      titleshipping
      is visible on the top left of the display in the
      Status
      titleshipping status
      area. It appears after a shipment has been initiated with the
      Status
      colourGreen
      titleStart button
      or through the SCM platform.
      Status
      titleshipping
      is displayed while the device is in shipping mode.

    • According to the severity notification setup on the SCM platform, the

      Status
      titleAlarm icon
      🔔 appears when an
      Status
      titleALARM STATE
      occurs.

  • The

    Status
    colourYellow
    titleShipment LED
    blinks every 5 seconds while the shipment is active.

  • The

    Status
    colourRed
    titleAlarm LED
    blinks every 5 seconds if an
    Status
    titleALARM STATE
    has occurred during an active shipment.

  • The

    Status
    colourYellow
    titleShipment LED
    turns on for 3 seconds and turns off as soon as the
    Status
    colourGreen
    titleStop button
    has had a valid press.

Battery

Battery type

The Saga logger has a rechargeable 2500mAh NiMH battery, with a lifecycle of at least 300 charge cycles. NiMH batteries are not considered hazardous goods.

Expected battery life

The Saga logger can be expected to function up to 110 days on a single charge while in an active shipment based on the longest wake-up interval of 12 hours.
Note that low temperature and cellular conditions affect battery life along with any additional wake-ups (e.g., button pushes and alarms).

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Wake-up interval

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Expected battery life on a single full charge

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1 hour

...

20 days

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2 hours

...

35 days

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3 hours

...

45 days

...

6 hours

...

75 days

...

12 hours

...

110 days

Charging the device

Remaining battery percentage

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The

Status
titlebattery icon
and the battery percentage next to the symbol show the remaining battery percentage. The black bar size also shrinks as the battery level reduces.

Charging

The device can be charged using one of the following methods:

  • A dedicated charging station provided by Controlant, that can fit 5 devices at a time

  • A USB charging adapter

  • A computer USB port.

For optimal charging and performance, please follow these guidelines:

  • Charge each device for 6 hours and until 100% shows on the screen on the right side of the battery with a flash symbol.

  • Leaving the device on the charger for an extended period after it's fully charged (>24 hours) is not recommended for maintaining battery health, though it presents no safety hazard.

  • The charging area, or charging room, should be well ventilated and at room temperature (15-25°C / 59-77°F). The device is unable to charge if the ambient temperature is below 0°C / 32°F.

  • Make sure that the devices are standing upright and are not leaning against each other.

Info

The devices generate heat while charging, especially towards the end of the charging cycle. If the internal temperature of the device reaches 40°C / 104°F the charging process will automatically interrupt until the device cools down again.
If the loggers are leaning to the side or against each other, or the ambient temperature is too high, the devices may heat up, preventing the battery from fully charging.

Note

Since the device heats up while charging, so it should not be placed directly in a shipment straight after being disconnected from a charger. As the temperature sensor on the device is inside the USB connector cable, the device should be allowed at least 30 minutes to recover after charging for the temperature measurements to be accurate. 

Display behavior while charging

Immediately as the device is plugged in to charge, a

Status
titleUSB ICON
shows up for a few seconds, briefly replacing the temperature values.

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While the device is being charged, the battery icon has a flash symbol. The battery percentage is not displayed while charging.

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If the internal temperature of the device reaches 40°C / 104°F the charging process will automatically interrupt until the device cools down again. A crossed-out battery icon appears on the screen, and stays on until charging resumes.

...

The battery is fully charged when 100% appears on the right side of the battery icon with the flash symbol.

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The device wakes up one more time when fully charged, and then the wake-up interval goes back to every 12 hours.

Low power mode

Battery less than 10 percent

When the battery level goes below 10%, the device wakes up every 24 hours, whether in

Status
titleShipping mode
or
Status
titleStandby mode
. The device operates in this fashion until the battery level is 5%. The display indicates the low power mode with the following icon and message.

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Battery 5 percent or less

The device enters

Status
titleHibernation mode
when the battery level reaches 5% or less. The display continues to show the Low power mode icon and message. Only the most critical functions are maintained in this mode until the battery is fully depleted. Temperature is measured and logged in the memory during
Status
titleHibernation mode
for as long as the battery lasts. Once a device is charged, it wakes up and sends all measurements logged in the memory to the Controlant cloud.

The following functionalities are stopped in

Status
titleHibernation mode
:

  • Modem wake-up

  • LED lights

  • Light sensor

  • Accelerometer

  • Barometer

  • Wake-up and LED behavior due to "button press" are switched off. Button events are still registered to memory.

The device must be charged to 15% or higher to recover from

Status
titleHibernation mode
.

Storing the device

When the device is not in use, please keep in mind the following optimal storage conditions:

  • Ambient temperature between 0°C and 25°C (32°F and 77°F).

  • Relative humidity below 80%.

  • Good cellular connection. The device always communicates with the Controlant Cloud, even when not in use. Make sure not to store it in metal enclosures, or areas where the connection is poor.

  • Be mindful of battery health. Use good inventory practices (i.e., first in, first out) to reduce the time a single device spends in storage. Never store a device with low battery.

Examples

The "Start button" is pressed

...

Illustration: The

Status
colourGreen
titlestart button
is pressed on an idle device.

  • After the

    Status
    colourGreen
    titlestart button
    has been held down for 5–8 seconds, the
    Status
    colourYellow
    titleshipment LED
    turns on, indicating that the button has been pressed long enough.

  • Suppose the button event triggers a connection to the cloud, then the display updates, showing a

    Status
    titlesyncing icon
    .

  • A sync can take from 30 seconds up to 6 minutes, depending on the connection and the amount of data.

  • When the syncing is complete and successful, the

    Status
    titlecloud connection status
    updates. In this case, the device received a shipment with
    Status
    titlebutton
    as a start method, and the
    Status
    titleShipment status
    updates to
    Status
    titleshipping
    , indicating that a shipment has started.

The "Start button" is pressed, but no cellular connection

...

Illustration: The

Status
colourGreen
titlestart button
is pressed on an idle device.

  • Suppose the device received the shipment information in a previous wake-up and the start method is

    Status
    titlebutton
    . In this case, the device moves into shipping mode showing
    Status
    titleshipping
    in the
    Status
    titleshipping status
    , even though a connection to the cloud fails.

  • The

    Status
    titleCloud CONNECTION status
    will show a
    Status
    titleCloud icon with an X
    , indicating a failed connection.

The device has received shipment information, but the shipment has not started

...

Illustration: The

Status
colourGreen
titlestart button
is pressed on a device with the "Geofence" start method, but it's still at the origin.

  • The device can receive information about a shipment before the starting conditions are met.

  • For example, if a device receives shipment information with a "Geofence" start method but the device has not left the shipping origin. 

The "Stop button" is pressed

...

Illustration: The 

Status
colourRed
titlestop button
is pressed on a device in active shipment.

  • When the

    Status
    colourRed
    titlestop button
    has been pressed for 5–8 seconds, the
    Status
    colourYellow
    titleShipment LED
    lights up for 3 seconds, and the
    Status
    titleShipment status
    goes from
    Status
    titleshipping
    to
    Status
    titlestopping
    .

  • If the button event triggers a connection to the cloud, the display shows a

    Status
    titlesyncing icon
    . After a successful cloud connection, and when all stop conditions have been met, the display shows
    Status
    titlestopped
    and a Cloud icon with a checkmark.

The "Stop button" is pressed, but no connection to the cloud (Button only)

...

Illustration: The

Status
colourRed
titlestop button
is pressed on a device in active shipment with the
Status
titlebutton
stop condition.

  • The device tries to stop the shipment, and if the button event triggers a connection, syncs with the cloud. 

  • As a

    Status
    colourRed
    titlestop button
    press is the only condition for delivering the shipment, the display shows
    Status
    titlestopped
    even if a connection to the cloud failed.

The "Stop button" is pressed, but no connection to the cloud (Button and Geofence)

...

Illustration: The

Status
colourRed
titlestop button
is pressed on a device in active shipment with
Status
titlebutton and geofence
stop condition.

  • The device tries to stop the shipment, and if the button event triggers a connection, sync with the cloud.

  • The sync fails due to a bad connection, and the display shows

    Status
    titleshipping
    again and a
    Status
    titleClod icon with an X
    , indicating a failed sync.

  • Moving from

    Status
    titlestopping
    to
    Status
    titleshipping
    can take 30–300 seconds. The
    Status
    titlesyncing icon
    will remain in the
    Status
    titlecloud CONNECTION status
    during the
    Status
    titlestopping
    process.

  • If the device is at the destination and syncs successfully with the cloud within 3 hours from the button press, the shipment will be delivered, and

    Status
    titlestopped
    will appear on the display.

The "Stop button" is pressed, but the device is not at the destination

...

Illustration: The

Status
colourRed
titlestop button
is pressed on a device in active shipment with
Status
titlebutton and geofence
stop condition.

  • The device tries to stop the shipment and sync with the cloud. The sync is completed, but the device has not arrived at its destination, so the display shows

    Status
    titleshipping
    again and a
    Status
    titleCloud icon with a checkmark
    , indicating a successful sync with the cloud at the last wake-up.

Manual shipment delivery

...

Status
titlestop shipment

...

Status
titlestopped

...

Info

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