Fox has revolutionized the way operators will interface with flow meters by creating the CAL-V™ Calibration Validation feature. CAL-V™ is an in-situ calibration routine that validates the flow meter’s calibration accuracy by testing the functionality of the sensor and its associated signal processing circuitry. This innovative approach lets you validate instrument calibration in the pipe, at process conditions, with just a push of a button. At the conclusion of the test, the meter will display a pass/fail message and the CAL-V™ data is saved in the meter for look-up at any time.
During the test, the meter’s microprocessor adjusts the signal to the sensor elements and determines the resulting electrical characteristics. These site-determined characteristics are compared with the data that was collected and stored in the instrument electronics during original factory calibration. Matching data within established tolerances confirms the meter is measuring accurately.
CAL-V ™ is an operator-initiated test that can be performed at any flow rate, including zero, and is completed in just three to four minutes. CAL-V™ can be initiated from the front panel, USB connection, RS485 Modbus or HART. If CAL-V™ is initiated by Fox’s FT3 View™ software tool, a calibration validation certificate can be produced at the conclusion of the test.
This feature is of particular value in environmental monitoring applications such as flare and vents where periodic calibration validation is mandated. It can also be used to streamline quality assurance, improve process initiatives and apply scheduled maintenance procedures.
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