Abstract: A method of communicating with two or more slaves is provided. The method includes receiving a command packet with an interface, wherein the command packet is sent by a master over a master-slave bus and associating a slave address of the command packet with one of two or more slaves communicatively coupled to the interface.

Abstract: An explosion proof electronics enclosure (200), is provided having a first compartment (206) and a second compartment (207) defined by a body (205). A septum (208) is between the first compartment (206) and the second compartment (207). A first aperture (209) in the septum (208) connects the first compartment (206) and the second compartment (207). A cavity (225) communicates with the first aperture (209), wherein the cavity (225) comprises an undercut taper (226). A potting (230) in the cavity (225) conforms to the cavity (225) shape, and forms a substantially explosion-proof interface between the first compartment (206) and the second compartment (207).

Abstract: A sonic- or ultrasonic flowmeter (200), is provided that comprises a body (202) configured to be connected to a pipeline. A first connector (204) is located on a first end (206) of the body (202) and a second connector (208) is located on a second end (210) of the body (202). Meter electronics (220) is configured to interface with sensors (235) and to indicate the degree of fluid flow through the pipeline to which the flowmeter (200) is connected based on signals received from the sensors (235). The meter electronics (220) comprises an acquisition section (224) and an interface section (222). An acquisition module (234) of the acquisition section (224) is configured to communicate with the sensors (235). An attachment region (237) is defined by the body, with the acquisition section (224) being attached thereto. An enclosure form (236) is sealedly attached to the body (202) that circumscribes the acquisition module (234).

Abstract: An EMI resistant electronics enclosure (200) is provided having a first compartment (206) and a second compartment (207), each defined by a body (205), being separated by a septum (208). A first aperture (209) in the septum (208) connects the first compartment (206) and the second compartment (207). A feed-through element (210) is provided having a first interface region (211) and a second interface region (212), wherein one or more primary conductors (217) extend between the first interface region (211) and the second interface region (212), and wherein the first interface region (211) resides in the first compartment (206), and the second interface region (212) resides in the second compartment (207). A conductive bar (232) circumscribes at least a portion of the feed-through element (210), and a conductive gasket (220) extends from the body (205) to the conductive bar (232), wherein a ground path is formed between the body (205) and the conductive bar (232) with the conductive gasket (220).

Abstract: The present invention relates to a feedthrough (200) adapted for use within a passage (300). The feedthrough (300) has a body (202) having a first interface region (204) and a second interface region (206). The first interface region (204) comprises a platform region (214). At least one electrical conductor (212) extends through the body (202) and out of the body (202) to both the first interface region (204) and the second interface region (206). A printed circuit board (216) is attached to the platform region (214). At least one pin hole (234) defined by the printed circuit board (216) is configured to accept the at least one electrical conductor (212).

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: An electronics (100, 200) including an electrical isolation is provided. The electronics (100, 200) include a bidirectional isolation circuit (110, 210) separating a first portion (100a, 200a) from a second portion (100, 200b) and a bus transceiver switch (120b, 220b) disposed in the second portion (100b, 200b). The bus transceiver switch (120b, 220b) is communicatively coupled to the bidirectional isolation circuit (110, 210). The bus transceiver switch (120b, 220b) receives from the bidirectional isolation circuit (110, 210) a communication control signal provided by the first portion (100a, 200a).

Abstract: A meter electronics (20) for determining a decay characteristic of a meter assembly (10) of a flow meter (5) is provided. The meter electronics (20) includes an interface (201) for receiving a vibrational response from a meter assembly (10), the vibrational response comprising a response to an excitation of the meter assembly (10) at a substantially resonant frequency, and a processing system (203) in communication with the interface (201). The processing system (203) is configured to receive the vibrational response from the interface (201), determine a response voltage (V) of the vibrational response, determine a decay characteristic (?) of the meter assembly (10) based on the response voltage (V), and compensate the decay characteristic (?) by using a previously determined decay characteristic-to-response voltage relationship.

Abstract: A meter electronics (20) for using a Reynolds number to correct a mass flow rate measurement of a fluid is provided. The meter electronics (20) comprises an interface (401) configured to communicatively couple to a sensor assembly (10) containing the fluid and receive sensor signals from the sensor assembly (10) and a processing system (402) communicatively coupled to the interface (401). The processing system (402) is configured to store a Reynolds number-correction relationship, wherein the Reynolds number-correction relationship relates Reynolds number values with Reynolds number-based correction values, calculate a Reynolds number of the fluid using a measured mass flow rate value of the fluid, and determine a Reynolds number-based correction value using the Reynolds number and the Reynolds number-correction relationship.

Abstract: An electrical transmitter (100) is provided that comprises an ethernet connection (118) and a power source. Electronics (112) are configured to receive the ethernet connection (118) and the power source. The electronics (112) comprise logic operable to detect the power source and accept power from either the ethernet connection (118) or a dedicated power connection (116). A remappable power connection terminal (114) with the electronics (112) is operable to accept power when the dedicated power connection (116) is detected, and operable to accept a non-power connection when power from the ethernet connection (118) is detected.

Abstract: A method for detecting a deviation in a flow meter parameter is provided. The method includes measuring a flow tube temperature in a plurality of locations; and calculating a temperature gradient based on the measured temperatures. The method also includes detecting a deviation in the flow meter parameter if the calculated temperature gradient exceeds a temperature gradient threshold.

Abstract: A method (300) for determining when to verify a stiffness coefficient K (202, 204) in a flowmeter (5) comprising receiving a first stiffness coefficient K (202), a plurality of temperatures T (206), a plurality of response frequencies ? (208), and a plurality of driver currents I (210), determining an average temperature T (212), a standard deviation temperature T (214), an average response frequency ? (216), a standard deviation response frequency ? (218), an average driver current I (224), and a standard deviation driver current I (226). A first subsequent value (236) comprising a subsequent temperature T (228), a subsequent response frequency ? (230), or a subsequent driver current I (232) is received. Upon determining that the first subsequent value (236) is outside a first respective range (237), a determination of a second stiffness coefficient K (204) is initiated.

Abstract: A method for verifying accurate operation for a flow meter (5) is provided. The method entails receiving a vibrational response from the flow meter (5), wherein the vibrational response comprises a response to a vibration of the flow meter (5) at a substantially resonant frequency. At least one gain decay variable is measured. It is then determined whether the gain decay variable is outside a predetermined range. A filter used in a stiffness calculation is adjusted if the gain decay variable is outside the predetermined range. The ability to detect and/or quantify any changes to the stiffness of the meter assembly in order to maintain a high level of accuracy is an improvement in the field of flow meters.

Abstract: A vibratory meter (5, 200) is provided, having a driver (104, 202) and a vibratory member (103, 103?, 204) vibratable by the driver (104, 202). At least one pickoff sensor (105, 105?, 209) is configured to detect vibrations of the vibratory member (103, 103?, 204). Meter electronics (20) comprise an interface (301) configured to receive a vibrational response from the at least one pickoff sensor (105, 105?, 209), and a processing system (303) coupled to the interface (301). The processing system (303) is configured to measure a drive gain (306) of the driver (104, 202) and determine a solute added to the fluid is substantially fully dissolved based upon the drive gain (306).

Abstract: A method (300), system (400), and electronics (20) for correcting a mass flow value in measured using a Coriolis flow meter (100) for temperature effects at a known fluid temperature temp below 0 C are provided. The method comprises receiving a known fluid density ?indic, receiving the fluid temperature temp, receiving a time period Tp, determining a Young's modulus temperature correction for density TFyD based on the known fluid density ?indic, the known fluid temperature temp, and the time period Tp, determining a Young's modulus temperature correction for mass flow TFyM based on a temperature correction constant k and Young's modulus temperature correction for density TFyD, and correcting the mass flow value {dot over (m)} using the Young's modulus temperature correction for mass flow TFyM.

Abstract: A variable mass balance bar (120-320, 520-820) is provided. The variable mass balance bar (120-320, 520-820) comprises a balance body (122-322b, 522-822) containing a balance fluid (124-324b, 524-824), wherein a mass of the balance fluid (124-324b, 524-824) is selected to balance a measuring conduit (110-310, 510-810) containing a process material.

Abstract: A meter electronics (20) for using a stiffness measurement to compensate a fluid property measurement is provided. The meter electronics (20) comprises an interface (601) configured to communicatively couple to a sensor assembly (10) and receive sensor signals from the sensor assembly (10), and a processing system (602) communicatively coupled to the interface (601). The processing system (602) is configured to determine a fluid property value based on the sensor signals and correct the fluid property value with a fluid property correction value, the fluid property correction value being correlated with a current stiffness value of the sensor assembly.

Abstract: A vibratory meter (5, 1600) configured to predict and reduce noise in the vibratory meter (5, 1600). The vibratory meter (5, 1600) includes a sensor assembly (10, 1610) and a meter electronics (20, 1620) in communication with the sensor assembly (10, 1610). The meter electronics (20, 1620) is configured to provide a drive signal to a sensor assembly (10, 1610), receive a sensor signal from the sensor assembly (10, 1610) having one or more components, and generate a signal to be applied to one of the sensor signal and the drive signal to compensate for the one or more components.

Abstract: A meter electronics (20) configured to clean a conduit in a vibratory meter (5) is provided. The meter electronics (20) includes an interface (201) configured to provide a drive signal to a meter assembly (10) communicatively coupled to the meter electronics (20) and receive one or more sensor signals from the meter assembly (10), and a processing system (202) communicatively coupled to the interface (201). The processing system (202) is configured to determine a parameter from the one or more received sensor signals. The processing system (202) is further configured to, based on the parameter, at least one of detect an unclean condition of the meter assembly (10) and enter into a cleaning mode, and detect a clean condition of the meter assembly (10) and enter into a non-cleaning mode.