Abstract: Systems and methods are disclosed that provide smart alerts to users, e.g., alerts to users about diabetic states that are only provided when it makes sense to do so, e.g., when the system can predict or estimate that the user is not already cognitively aware of their current condition, e.g., particularly where the current condition is a diabetic state warranting attention. In this way, the alert or alarm is personalized and made particularly effective for that user. Such systems and methods still alert the user when action is necessary, e.g., a bolus or temporary basal rate change, or provide a response to a missed bolus or a need for correction, but do not alert when action is unnecessary, e.g., if the user is already estimated or predicted to be cognitively aware of the diabetic state warranting attention, or if corrective action was already taken.

Abstract: A meter which measures fluid flow by passing the fluid through a receptacle and determining the mass of fluid in the receptacle. The shape of the receptacle, the fluid flow path within the receptacle and the receptacle outlet are chosen to ensure that for a selected fluid the mass of fluid in the receptacle is a linear function of fluid flow rate. The mass is determined by weighing the receptacle. Total mass flow is determined by integrating the mass measurement over time if particular application of the meter is as a milk meter.