High precision Coriolis mass flowmeter

High precision Coriolis mass flowmeter

Micro Motion ®) K series Coriolis mass flowmeter and density meter with high precision (Micro Motion) ®) The K series Coriolis mass flowmeter and density meter are simple, reliable, compact in structure, and easy to install and maintain. Its function * makes it easier for you to manage the process. High precision ® （Micro Motion ®) Compared with traditional volumetric flow measurement techniques, Coriolis mass flow meters and density meters have higher accuracy ® （Micro Motion ®) Coriolis mass flow meters and density meters have numerous advantages: accurate and reproducible process data, suitable for a wide range of flow and process conditions. Capable of directly measuring mass flow rate and density online, as well as volumetric flow rate and temperature - one device with multiple functions. No movable parts, thus reducing maintenance costs. No rectification is required, and there is no need to specially install straight pipe sections, thus simplifying installation and reducing expenses. Can provide diagnostic tools for instruments and processes. As a practical application of the Coriolis effect, the working principle of the Coriolis mass flowmeter is to cause vibration in the flow tube through which the medium flows. Although the vibration is not a complete circle, it still forms a rotating coordinate system, causing the Coriolis effect. Sensors detect and analyze the vibration frequency, phase difference, and amplitude changes of flow tubes, and the specific detection methods may vary depending on the design of the flow meter. These observed changes represent the mass flow rate and density of the fluid. The mass flow measurement tube swings under the action of force, resulting in a sine wave. When the flow rate is zero, two pipelines vibrate in phase. When there is flow, the Coriolis force causes the pipeline to bend, resulting in phase shift. The phase difference between these two waveforms is directly proportional to the mass flow rate. The density measurement tube vibrates at its natural frequency. The change in the quality of the medium inside the pipeline will cause a corresponding change in the natural frequency of the pipeline. Calculate density based on the frequency variation of the pipeline. Temperature measurement is a measurement variable that can be used as an output quantity. In addition, temperature can also be used to compensate for the effect of temperature changes on the Young's modulus of elasticity inside the sensor. Instrument characteristics: Measurement accuracy is a function of fluid mass flow rate, independent of operating temperature, pressure, or medium composition. However, the pressure drop of the sensor depends on the operating temperature, pressure, and medium composition. The specifications and functions vary by model, and some models may have fewer available options. All models have a density measurement range of up to 3 g/cm3 (3000 kg/m3) for liquid and slurry measurements, accuracy and repeatability for gas measurements, performance specifications, calibration code Z, calibration code A, mass/volume flow accuracy (1) ± 0.5% flow rate ± 0.2% flow rate mass/volume flow rate repeatability (1) ± 0.1% flow rate density accuracy ± 0.01g/cm3 (± 10 kg/m3) density repeatability ± 0.005 g/cm3 (± 5 kg/m3) temperature accuracy ± 1 ° C ± 0.5% measurement value (° C) temperature repeatability ± 0.2 ° C (1). The flow accuracy indicated includes the combined effects of repeatability, linearity, and hysteresis. Performance specifications for all models: Quality flow accuracy (1) ± 1.0% Flow quality flow repeatability (1) ± 0.5% Flow temperature accuracy ± 1 ° C ± 0.5% Measurement value (° C) Temperature repeatability ± 0.2 ° C (1) The flow accuracy indicated includes the combined effects of repeatability, linearity, and hysteresis. The term "rated flow" used by K-series Coriolis mass flow meters in January 2017 refers to the flow rate corresponding to an instrument pressure drop of approximately 1 barg caused by water flow under reference conditions. When selecting sensors for gas applications, the pressure drop across the sensor depends on the operating temperature, pressure, and liquid composition. Therefore, when selecting sensors for any specific gas application, please consult with high-precision sales personnel for instrument dimensions. The following table shows the flow rate of air at a pressure drop of approximately 1 barg under reference conditions. All models have a quality flow rate: 316L stainless steel (S) model, standard caliber, rated flow rate, large flow rate, and range ratio under high flow rate (1) (1). It is recommended to use a flow meter within the specified range of range ratio flow rate to ensure high accuracy performance. Inches, millimeters, kilograms per hour, kilograms per hour K025S 1/4” 6 1,366 2,720 40:1 K050S 1/2” 15 4,226 8,160 40:1 K100S 1” 25 13,500 25,000 35:1 K200S 2” 50 52,200 87,000 25:1 K300S 3” 80 135, 000 225000 25:1 All models Gas flow rate: 316L stainless steel (S) model Mass volume kg/hour Nm3 /h K025S 51 40 K050S 157 121 K100S 3,600 2,800 K200S 11,500 8,700 K300S 30, Note: The standard reference conditions are 1.013 barg and 0 ° C. The flow rate is based on air at 20 ° C and 34 barg. The K series Coriolis mass flowmeter is designed to handle common flow and density measurement applications with high precision. The K series flowmeter has a compact appearance and can be installed in almost any position. Its integrated electronic components make installation and setup very easy. The large LCD display provides a user-friendly interface, allowing users to directly and conveniently perform instrument configuration operations. For mass flow measurement, process temperature impact is defined as the change in sensor flow accuracy caused by the deviation of process temperature from the calibration temperature. The temperature effect can be corrected by zeroing under process conditions. For density measurement, the effect of process temperature is defined as the change in sensor density accuracy caused by the deviation of process temperature from the calibrated density. For correct settings and configurations, please refer to the installation manual. Temperature restrictions (1) (2) (3) (1) ATEX and NEPSI certification require limiting the ambient temperature to -40 to 55 ° C. (2) When the temperature is below -20 ° C, the display's responsiveness decreases and it may be difficult to read. When the temperature exceeds 55 ° C, some displays may become darker. (3) The storage temperature of the instrument is -40 to 60 ° C. The model mass flow density is calculated per ° C (% of high flow) g/cm3/° C K025S, K050S, K100S, K200S ± 0.00175 ± 0.0001 K300S ± 0.004 ± 0.0001 Temperature (° C) -40-20 0 20 40 60 80 37 60 Only for split type installation of electronic components Integrated or split type installation of electronic components transmitters Environmental temperature (° C) -100-40 40 80-80-60 140 020 60-20 100 120 160 180

High precision Coriolis mass flowmeter