Safe Basal

Device: MiniMed™ 670G insulin pump (MMT-1780K)

Safe Basal is an automatic function within Auto Mode and cannot be modified. The Safe Basal rate is determined by the Auto Mode feature based on your insulin delivery history. It allows you time to perform additional actions required to ensure Auto Mode remains active. Safe Basal covers your basal needs by delivering insulin at a constant rate. Safe Basal does not adjust insulin delivery based on your current SG values.

When the pump is in Safe Basal, the Auto Mode shield appears with a white outline.

Safe Basal screen

Several conditions can cause a transition into Safe Basal. The following table describes these conditions and the actions you must take to resume Auto Basal delivery. An optional setting called the Auto Mode BG alert can be set to have the pump alert you when a BG entry is required. This setting is turned on by default.

Condition	Actions to take
Auto Mode has been at the minimum delivery limit for 2 1/2 hours.	Enter a BG. If your Auto Mode BG alert setting is enabled, you will receive an Auto Mode min delivery alert.
Auto Mode has been at the maximum delivery limit for 4 hours.	Enter a BG. If your Auto Mode BG alert setting is enabled, you will receive an Auto Mode max delivery alert.
Auto Mode detects that your sensor might be under-reading.	Enter a BG. If your Auto Mode BG alert setting is enabled, you will receive a BG entry required alert.
An entered BG is 35% or more different than your current SG value.	Enter another BG or calibration if prompted. If your Auto Mode BG alert setting is enabled, you will receive a BG entry required or Cal required for Auto Mode alert.
No SG data has been received for more than 5 minutes.	If SG data is not available due to a signal interference, three dashes appear on the screen in place of the SG data. If the interference is intermittent, the Auto Mode shield appears with a white outline, and no action will be required. If your pump has not received SG data for 30 minutes or more, you will receive a Lost sensor signal alert. If the SG data is not available because the SG calibration has expired, you will receive a Calibrate Now alert. Calibrate your sensor. The Auto Mode BG alert does not apply to this condition.

After 90 minutes in Safe Basal, if the condition that caused the pump to transition into Safe Basal has not been resolved, the pump will enter Manual Mode.

Note: When you change your sensor, your pump will switch to Safe Basal for up to 90 minutes. The pump will guide you through calibrating and entering a BG for Auto Mode.