I’ve been using the Minimed 522 & sensor since April. Lately during the day, I miss hearing alerts the pump gives. At night, alerts wake me without a problem. The buzzing is especially effective when the pump is directly above my pelvic bone.
Back to during the day… a co-worker (with a type 1 diabetic spouse) has told me a few times that the pump was alerting me and I missed. I’m not sure of a solution to this problem yet. Perhaps I should call Minimed again, or even read the manual for the answer.