The present invention is directed to a biosensor being provided with a suction cavity which sucks a certain amount of sample by means of capillary phenomenon, the biosensor including a flow channel to connect the suction cavity and an analytical cavity furnished with a reagent, wherein, the flow channel has a narrowed section provided with a gap formed by narrowing a flow passage area. This system digitally determines modulated voltages applied to motor phases in a manner that compensates for winding torque distortions, which reduces acoustic emissions. Above the membrane, said connection element is embodied in the form a connection piece comprising an internal cone and external thread, the membrane being sealed for receiving a syringe cone shaft. A determination is then made whether execution of the job flow where the error occurred should be restarted according to an operation performed by the user in response to the notification. Additionally, within the array, each target conductive node coupled to the same IO pin may comprise a different neighboring conductive node.