Abstract: A method for correcting a flow variable (509) based on an inner pressure inside a Coriolis flow meter (202) comprises the steps of receiving a first outside pressure (503) measured with a first pressure sensor (204) located in a first process conduit (208a) positioned on a first end (212a) of the Coriolis flow meter (202), determining a second outside pressure (505) in a second process conduit (208b) positioned on a second end (212b) opposing the first end (212a) of the Coriolis flow meter (202), determining an estimated inner flow meter pressure (507) based on the first outside pressure (503) and the second outside pressure (505), receiving the flow variable (509), and generating a corrected flow variable (512) based on the estimated inner flow meter pressure (507), a pressure compensation factor (510), and the flow variable (509).

Abstract: A method for totalizing a flow rate of a multi-phase/single-phase flow is provided. The method comprises detecting that a liquid flow is being measured and switching a totalizing of the multi-phase/single-phase flow from an estimated gas mass flow rate of a precedent multi-phase flow to an estimated gas mass flow rate of the liquid flow.

Abstract: A method and apparatus for operating a flowmeter (5) is provided. A process fluid is placed in the flowmeter (5). A temperature of the fluid is measured. A density of the fluid is measured. A velocity of sound (VoS) of the fluid is calculated. A mass flow rate error is calculated, and a corrected mass flow rate of the fluid is calculated.

Abstract: A vibratory meter (5) configured to detect a measurement bias of a reference zero-flow value is provided. The vibratory meter (5) comprises a sensor assembly (10) and a meter electronics (20) communicatively coupled to the sensor assembly (10). The meter electronics (20) is configured to measure a plurality of zero-flow values of the sensor assembly (10) and compare the plurality of zero-flow values to a reference zero-flow value to determine a bias indicator of the reference zero-flow value.

Abstract: A meter electronics (20) for selecting a zero-verification criteria for performing a zero verification of a vibratory meter (5) is provided. The meter electronics (20) comprises an interface (401) communicatively coupled to a sensor assembly (10) containing a fluid and a processing system (402) communicatively coupled to the interface (401). The processing system (402) is configured to determine a property of a fluid and select, based on the property of the fluid, the zero-verification criteria value for the sensor assembly (10).

Abstract: A meter electronics (20) for determining a zero-verification criteria for a zero-verification of a vibratory meter (5) is provided. The meter electronics (20) comprises an interface (401) communicatively coupled to a sensor assembly (10) containing a fluid and a processing system (402) communicatively coupled to the interface (401). The processing system (402) is configured to determine a property of the fluid and determine, based on the property of the fluid, a zero-verification criteria value for the sensor assembly (10).

Abstract: Methods for operating a flowmeter diagnostic tool are provided that comprise interfacing the diagnostic tool with a flowmeter (5) sensor assembly (10). A base prover volume (BPV), a desired number of passes per run, and/or a maximum number of allowed runs may be input into the diagnostic tool. Flowmeter data is received. An estimated total prove time (TPT) necessary to pass a predetermined repeatability requirement, an estimated minimum number of runs needed to achieve the calculated TPT, and/or an estimated minimum BPV may be calculated.

Abstract: A method of converting a directly measured mass flow rate to account for buoyancy is provided. The method includes directly measuring a mass flow rate of a material, measuring a density of the material, and using the measured density of the material to convert the directly measured mass flow rate into a mass value including a buoyancy of a fluid.

Abstract: Methods for operating a flowmeter diagnostic tool are provided that comprise interfacing the diagnostic tool with a flowmeter (5) sensor assembly (10). A base prover volume (BPV), a desired number of passes per run, and/or a maximum number of allowed runs may be input into the diagnostic tool. Flowmeter data is received. An estimated total prove time (TPT) necessary to pass a predetermined repeatability requirement, an estimated minimum number of runs needed to achieve the calculated TPT, and/or an estimated minimum BPV may be calculated. A standard deviation of the flowmeter sensor assembly flow rate (?) is calculated, and the number of samples used to calculate a is determined. A meter-specific factor (MSF) is calculated.

Abstract: A method of determining vapor pressure of a fluid is provided. The method includes the steps of providing a meter (5) having meter electronics (20), the meter (5) being at least one of a flowmeter and a densitometer, and flowing a process fluid through the meter (5). A pressure of the process fluid is measured. The pressure of the process fluid is adjusted until a monophasic/biphasic boundary is reached. The flowing vapor pressure of the process fluid is determined at the monophasic/biphasic boundary.

Abstract: A method for correcting a flow variable (509) based on an inner pressure inside a Coriolis flow meter (202) comprises the steps of receiving a first outside pressure (503) measured with a first pressure sensor (204) located in a first process conduit (208a) positioned on a first end (212a) of the Coriolis flow meter (202), determining a second outside pressure (505) in a second process conduit (208b) positioned on a second end (212b) opposing the first end (212a) of the Coriolis flow meter (202), determining an estimated inner flow meter pressure (507) based on the first outside pressure (503) and the second outside pressure (505), receiving the flow variable (509), and generating a corrected flow variable (512) based on the estimated inner flow meter pressure (507), a pressure compensation factor (510), and the flow variable (509).

Abstract: A meter electronics (20) for detecting an orientation and compensating a measurement based on the detected orientation is provided. The meter electronics (20) comprises an interface (401) configured to communicatively couple to a sensor assembly (10) and a processing system (402). The processing system (402) is configured to detect an orientation of the sensor assembly (10) based on one or more sensor signals provided by the sensor assembly (10).

Abstract: A method of converting a directly measured mass flow rate to account for buoyancy is provided. The method includes directly measuring a mass flow rate of a material, measuring a density of the material, and using the measured density of the material to convert the directly measured mass flow rate into a mass value including a buoyancy of a fluid.

Abstract: Methods for operating a flowmeter diagnostic tool are provided that comprise interfacing the diagnostic tool with a flowmeter (5) sensor assembly (10). A base prover volume (BPV), a desired number of passes per run, and/or a maximum number of allowed runs may be input into the diagnostic tool. Flowmeter data is received. An estimated total prove time (TPT) necessary to pass a predetermined repeatability requirement, an estimated minimum number of runs needed to achieve the calculated TPT, and/or an estimated minimum BPV may be calculated.

Abstract: A method of determining vapor pressure of a fluid is provided. The method includes the steps of providing a meter (5) having meter electronics (20), the meter (5) being at least one of a flowmeter and a densitometer, and flowing a process fluid through the meter (5). A pressure of the process fluid is measured. The pressure of the process fluid is adjusted until a monophasic/biphasic boundary is reached. The flowing vapor pressure of the process fluid is determined at the monophasic/biphasic boundary.

Abstract: Methods for operating a flowmeter diagnostic tool are provided that comprise interfacing the diagnostic tool with a flowmeter (5) sensor assembly (10). A base prover volume (BPV), a desired number of passes per run, and/or a maximum number of allowed runs may be input into the diagnostic tool. Flowmeter data is received. An estimated total prove time (TPT) necessary to pass a predetermined repeatability requirement, an estimated minimum number of runs needed to achieve the calculated TPT, and/or an estimated minimum BPV may be calculated. A standard deviation of the flowmeter sensor assembly flow rate (?) is calculated, and the number of samples used to calculate a is determined. A meter-specific factor (MSF) is calculated.

Abstract: A system for calculating a flow rate of a flow meter using multiple modes is provided according to an embodiment of the invention. The system for calculating a flow rate of a flow meter using multiple modes comprises a means for calibrating the flow meter for a number of desired modes. The system for calculating a flow rate of a flow meter using multiple modes includes a means for determining a density of a material flowing through the flow meter associated with each mode. The system for calculating a flow rate of a flow meter using multiple modes further includes a means for determining the flow rate effect on density for each desired mode. The system for calculating a flow rate of a flow meter using multiple modes a means for calculating a flow rate based on the density and flow rate effect on density values for each desired mode.

Abstract: A method of delivering propane to a customer is disclosed. A transport vehicle transports the propane to the customer. The transport vehicle delivers the propane from the transport vehicle to the customer. A Coriolis flowmeter measures a mass flow rate of the propane as transport vehicle delivers the propane to the customer. The Coriolis flowmeter determines a gross volume of the propane based on the mass flow rate of the propane. The Coriolis flowmeter also determines an adjusted volume of the propane based on the mass flow rate and a constant value. The constant value corresponds to a density of propane at a reference temperature.

Abstract: A method of delivering propane to a customer is disclosed. A transport vehicle transports the propane to the customer. The transport vehicle delivers the propane from the transport vehicle to the customer. A Coriolis flowmeter measures a mass flow rate of the propane as transport vehicle delivers the propane to the customer. The Coriolis flowmeter determines a gross volume of the propane based on the mass flow rate of the propane. The Coriolis flowmeter also determines an adjusted volume of the propane based on the mass flow rate and a constant value. The constant value corresponds to a density of propane at a reference temperature.

Abstract: A flow meter calibration system uses a plurality of Coriolis effect mass flow meters formed in two arrays to calibrate a meter under test. The system adjusts flow rates to optimum levels for certainty of measurement and performs a statistical analysis permitting the system to be used even in the calibration of other Coriolis flowmeters.