Patent ID: 8775110

Claim:
A system for calibrating a flowtube, the system comprising: a transmitter configured to induce motion in the flowtube containing fluid, the transmitter comprising: a contact input, a measurement module configured to determine a sensed property value indicative of a sensed property of the fluid based on the motion of the flowtube, and a zero-checker module configured to determine a calibration value based on the sensed property value over a pre-determined time period during which the fluid contained in the flowtube is actually stationary; a first switch configured to activate the zero-checker module, the switch coupled to the transmitter through the contact input, and; wherein the first switch is configured to close the flowtube such that the fluid contained in the flowtube is stationary, and a second switch is configured to deactivate the zero-checker module and to open the flowtube such that the fluid contained in the flowtube flows.