Patent ID: 7295934

Claim:
A system for continuously monitoring performance of a fluid flow measurement device, the system comprising: a differential pressure (dP) sensor to measure a differential pressure across a gas flow meter of a rotary type, the differential pressure sensor having a first input port to be in continuous uninterruptible fluid communication with an inlet of the gas flow meter and a second input port to be in continuous uninterruptible fluid communication with an outlet of the gas flow meter; a first plurality of memory locations containing baseline dP characteristic information for the gas flow meter; and a second plurality of memory locations containing instructions that, when executed by a processor, cause the processor to perform operations to: (a) determine a flow rate of a fluid through the gas flow meter when the differential pressure was measured; (b) determine whether the measured differential pressure exceeds a threshold differential pressure above the baseline dP characteristic information at the determined flow rate; and (c) generate an electronic message to communicate a condition of the gas flow meter based upon a result of the operation (b).