A flow system based on pulsating mechanism that has better accuracy compared to conventional vortex meters due to the fact that the pulsations generated have increased signal response and lower frequency, both of which are favorable for a high accuracy measurement. A data processor reset signal resets the data processor, part of trace collection hardware and does not reset remaining parts of trace collection hardware. A stator assembly is incorporated within a housing and is configured to movably support the oscillator and to carry an electromagnet.