The measuring tubes are vibrated at their natural frequency. A change in the mass of the fluid contained inside the tubes causes a corresponding change to the tube natural frequency. The frequency change of the tube is used to calculate density.
Rosemount CMF010M324NQFZEZZZ ELITE Series Coriolis Flow and Density Meters
The measuring tubes are vibrated at their natural frequency.The frequency change of the tube is used to calculate density.Measurement accuracy is a function of fluid mass flow rate independent of operating temperature, pressure, or composition. However, pressure drop through the sensor is dependent upon operating temperature, pressure, and fluid composition.
■For mass flow measurement, process temperature effect is defined as the change in sensor flow accuracy specification due to process temperature change away from the calibration temperature. Use the Zero Verification and Smart Meter Verification tools to correct for any process temperature effect.
■ For density measurement, process temperature effect is defined as the change in density accuracy specification due to process temperature change away from the calibration temperature.
— For all models, process temperature effect on density is ±0.000015 g/cm3 (±0.015 kg/m3) per °C difference from calibration temperature.
— For models ordered with optional temperature calibration, density specification is valid from 0-60°C and process temperature effect should be considered when operating above or below this range.
Industry-leading capabilities that unleash your process potential
■ Available with the most extensive offering of transmitter and mounting options for maximum compatibility with your system
■ State of the art, ISO-IEC 17025 compliant calibration stands achieving ±0.014% uncertainty drive best in class measurement accuracy
■ The most robust communication protocol offering in the industry including Smart Wireless
■ True multi-variable technology measures necessary flow and density process variables simultaneously
■ Widest selection of safety, country, and custody transfer approvals Unparalleled performance in two-phase flow conditions
■ Featuring the lowest frequency Coriolis sensors that ensure the two-phase mixture vibrates with the tube to drastically reduce uncertainty
contributions from both the presence of liquid in a gas flow measurement, and entrained gas or aeration in liquid flow
■ Unmatched MVD transmitter technology with digital signal processing (DSP) delivers the fastest response and refresh rates enabling accurate batch and other two-phase flow measurement
■ Measure fluids with any Gas Void Fraction (GVF). The relationship to mass flow accuracy varies with application
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