Mass, volume flow, density and concentration measurement of liquids and gases
The technology-led products are designed for a wide range of complex and demanding environments, where accuracy and reliability are essential. The OPTIMASS series is suitable for all process and custody transfer (CT) applications, especially for the measurement of liquids, gases and liquids with entrained gas.
OPTIMASS with EGM™ can cope with slurries containing gases, and highly viscous fluids with plugs of gas entrainment. EGM™ also helps to overcome problems of flow regimes where increased viscosity and the relative different velocity of the liquid and the gas affect the flow regime.
Gas entrained in the liquid dampens the regular oscillation of the measuring tubes, and as the gas content increases, the oscillation can come to a complete stop. To overcome this, KROHNE has developed powerful control algorithms that allows the meter to maintain the oscillation and continues to operate even with complex flow regimes.
Even during a complete transition from a pure liquid phase to a gas phase and back, i.e. from 0 to 100% gas content, the device won‘t stop the operation.
Coriolis flowmeters can measure the mass flow, volume flow and density of any fluid, whether it is aerated or not. Density measurement of single-phase fluids is common practice, but for traditional meters it becomes challenging, when there is entrained gas.
In many applications where entrained gas is present, meters with EGM™ show excellent performance and repeatability for process control, batching, loading, offloading and transfer measurement.
The MFC 400 converter software provides the most secure and versatile authentication concept for all remote access, fully certified via TÜV Rheinland. The MFC 400 allows safety-relevant data to be changed via HART® signals using an FSK modem, even from the control room.
This requires that all access levels are fully password protected, no matter whether the configuration is carried out remotely via HART®, via the local display, or via the OPTICHECK service tools.
Developed acc. to IEC 61508/61511, the OPTIMASS Coriolis flowmeter series is designed to meet the highest safety as well as security standards. In order to achieve diagnostic coverage of >96 %, all flowmeters have integrated continuous signal monitoring, redundant references and calibrations.
Redundant storage of all device configuration data allows the converter to be replaced at any time without the need for manual reconfiguration: This means higher safety and less effort for the end-user.
A partial proof test procedure for the OPTIMASS series has been developed in conjunction with TÜV Rheinland. Proof test coverage (PTC) of up to 82 % is thus provided without the need to remove the device. This ensures the safe operation of any safety-relevant function and helps to justify the lengthening of full proof test intervals.