I have a syringe that has a strange alarm. When using a 30 or 50 ml syringe, during the infusion it will stop, the leds that indicate the size of the syringe will blink and you will hear an audible alarm. If I press star the infusion will continue but repeat this alarm several times until it finally finishes the infusion. This doesn't happen when using a smaller syringe (10 or 20ml). I will like to know if maybe I'm doing something wrong or if this has happened to anybody else.