Managing Your CGM Session

Note: These instructions are provided as a reference tool for pump users who are already familiar with the use of an insulin pump and with insulin therapy in general. Not all screens are shown. For more detailed information on the operation of the Tandem Mobi pump, please refer to its user guide.

In the Tandem Mobi system, your CGM sensor sends glucose readings directly to the pump. Check your Dashboard screen 10 minutes after starting your sensor session to make sure your pump and CGM are communicating.

During the sensor startup period, Control-IQ technology will not affect the basal rates or deliver automatic correction boluses. The sensor must be actively providing readings for Control-IQ technology to operate. If you are using Control-IQ technology, it will automatically resume once the CGM readings are available on the pump.

If you see the out of range symbol below the battery level indicator and the antenna symbol is grayed out, follow these troubleshooting tips:

  1. Make sure your pump and CGM are within 20 feet (6 meters) of each other without obstruction. Re-check in 10 minutes to see if the out of range symbol is still active.

  2. If the pump and CGM are still not communicating, contact Customer Technical Support.

Warning

Control-IQ technology limits basal rate to 3 units/hour during the sensor startup period. In order to receive more than 3 units/hour during the sensor startup, turn Control-IQ technology off.

Enter your Dexcom G6 Transmitter ID

  1. From the Dashboard screen, tap Settings.
  2. Tap CGM.
  3. Tap Dexcom G6.
  4. Tap and enter the Transmitter ID field. The transmitter ID can be found on the bottom of your transmitter. The letters I, O, V and Z are not used in transmitter IDs, and should not be entered.
  5. 5. Verify your transmitter ID by entering it again in the Verify Transmitter ID field.
  6. Tap Done.
  7. Tap Save.

Start a Dexcom G6 Sensor

  1. From the Dashboard screen, tap Settings.
  2. Tap CGM.
  3. Tap Dexcom G6.
  4. Tap Start G6 Sensor.
  5. Tap the Sensor Code field to enter the 4-digit sensor code. If you don’t have a code, or if you have already started a sensor session with the Dexcom G6 CGM app, you can tap Skip.
  6. Tap Done.
  7. Tap Next.
  8. On the Start Sensor screen, tap Start.

    The Dashboard screen will display the sensor startup countdown symbol below the battery level indicator. Once the sensor startup is complete, the countdown symbol will be replaced with your most recent sensor glucose reading and trend arrow.

Warning

Continue to use a BG meter and test strips in order to make treatment decisions during the 2-hour startup period, or if your sensor glucose alerts and readings don't match your symptoms.

Start a Dexcom G7 Sensor

  1. From the Dashboard screen, tap Settings.
  2. Tap CGM.
  3. Tap Dexcom G7.
  4. Tap the Pairing Code field to enter the 4-digit pairing code.
  5. Tap the Verify Pairing Code field to enter the 4-digit pairing code again.
  6. Tap Done.
  7. Tap Save. The Sensor Paired window displays.

    The Dashboard screen will display the sensor startup countdown symbol below the battery level indicator. Once the sensor startup is complete, the countdown symbol will be replaced with your most recent sensor glucose reading and trend arrow.

Warning

Continue to use a BG meter and test strips in order to make treatment decisions during the 30-minute startup period, or if your sensor glucose alerts and readings don't match your symptoms.

You can end your sensor session at any time before the automatic sensor shutoff. If you end your sensor session early, you will not be able to restart the session using the same sensor.

To end a CGM session:

  1. From the Tandem Mobi mobile app Dashboard screen, tap Settings.
  2. Tap CGM.
  3. Tap Stop G6 Sensor or Stop G7 Sensor.
  4. Tap Yes to confirm.

The Replace Sensor icon will appear in the place where sensor glucose readings normally show.

New sensor glucose readings do not show on your Tandem Mobi mobile app after your sensor session ends. To receive new sensor glucose readings, you must insert a new sensor and start a new session.