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Start and Stop buttons

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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

2️⃣ The

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

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

Display

The Saga logger has an E-Ink display that updates regularly to indicate the device status. Therefore, the display does not show real-time information; instead, it receives information during each update.

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

2️⃣ Change in the

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

Paired mode

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

Shipping mode

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A device in a shipment shows

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

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

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If the

Stopped mode

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

• The start of a new shipment, or

• The device is charging, or

• Twenty-four hours have passed.

If conditions for stopping the shipment are not met, the

Cloud connection status

Booting up

The

Syncing

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The

Connected to the cloud

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If sync to the cloud is successful, the

Connection fails, or sync is not completed

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

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

"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

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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

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Display message:

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Ready

...

...

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Normal behavior, showing

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Shipping

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...

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Normal behavior, showing

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Delivered

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

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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

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Closed

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Display message:

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Display prioritization while not in a shipment

The

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

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Not in Shipment

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No activity

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Assigned to shipment

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No activity

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In shipment, no alarm

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...

...

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In shipment, active alarm

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The

Temperature alarms during a shipment

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

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

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

• The

  Status
  colour Red title Alarm led

  blinks. 

• The display shows the

  Status
  title Alarm 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

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

Wake-up behavior

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

  Status
  title Standby mode

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

  • A device in a

    Status
    title DRAFT 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
    title READY state

    shipment wakes up every 12 hours - except if the start shipping method is

    Status
    title geofence

    ,

    Status
    title GEOFENCE or button

    , or

    Status
    title specify 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).

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

  Status
  title Alarm STATE

  occurs. After waking up to report the

  Status
  title ALARM 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
  title flight 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

If the start shipping method is set to

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
    title cloud 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
    title cloud icon with an X

    .

  • The

    Status
    title cloud CONNECTION status

    is updated at every wake-up. A device in

    Status
    title standby mode

    wakes up every 12 hours.

Device during a shipment - Shipping mode

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

• On the display:

  • Status
    title shipping

    is visible on the top left of the display in the

    Status
    title shipping status

    area. It appears after a shipment has been initiated with the

    Status
    colour Green title Start button

    or through the SCM platform.

    Status
    title shipping

    is displayed while the device is in shipping mode.

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

    Status
    title Alarm icon

    🔔 appears when an

    Status
    title ALARM STATE

    occurs.

• The

  Status
  colour Yellow title Shipment LED

  blinks every 5 seconds while the shipment is active.

• The

  Status
  colour Red title Alarm LED

  blinks every 5 seconds if an

  Status
  title ALARM STATE

  has occurred during an active shipment.

• The

  Status
  colour Yellow title Shipment LED

  turns on for 3 seconds and turns off as soon as the

  Status
  colour Green title Stop 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

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35 days

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3 hours

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45 days

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6 hours

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75 days

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12 hours

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110 days

Charging the device

Remaining battery percentage

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The

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.

Display behavior while charging

Immediately as the device is plugged in to charge, a

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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.

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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

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Battery 5 percent or less

The device enters

The following functionalities are stopped in

• 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.

Examples

The "Start button" is pressed

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Illustration: The

• After the

  Status
  colour Green title start button

  has been held down for 5–8 seconds, the

  Status
  colour Yellow title shipment 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
  title syncing 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
  title cloud connection status

  updates. In this case, the device received a shipment with

  Status
  title button

  as a start method, and the

  Status
  title Shipment status

  updates to

  Status
  title shipping

  , indicating that a shipment has started.

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

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Illustration: The

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

  Status
  title button

  . In this case, the device moves into shipping mode showing

  Status
  title shipping

  in the

  Status
  title shipping status

  , even though a connection to the cloud fails.

• The

  Status
  title Cloud CONNECTION status

  will show a

  Status
  title Cloud icon with an X

  , indicating a failed connection.

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

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Illustration: The

• 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

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Illustration: The 

• When the

  Status
  colour Red title stop button

  has been pressed for 5–8 seconds, the

  Status
  colour Yellow title Shipment LED

  lights up for 3 seconds, and the

  Status
  title Shipment status

  goes from

  Status
  title shipping

  to

  Status
  title stopping

  .

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

  Status
  title syncing icon

  . After a successful cloud connection, and when all stop conditions have been met, the display shows

  Status
  title stopped

  and a Cloud icon with a checkmark.

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

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Illustration: The

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

• As a

  Status
  colour Red title stop button

  press is the only condition for delivering the shipment, the display shows

  Status
  title stopped

  even if a connection to the cloud failed.

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

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Illustration: The

• 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
  title shipping

  again and a

  Status
  title Clod icon with an X

  , indicating a failed sync.

• Moving from

  Status
  title stopping

  to

  Status
  title shipping

  can take 30–300 seconds. The

  Status
  title syncing icon

  will remain in the

  Status
  title cloud CONNECTION status

  during the

  Status
  title stopping

  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
  title stopped

  will appear on the display.

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

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Illustration: The

• 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
  title shipping

  again and a

  Status
  title Cloud icon with a checkmark

  , indicating a successful sync with the cloud at the last wake-up.

Manual shipment delivery

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