Flow measuring technology For liquids, gases and steam

Global calibration and verification services

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Calibration rig for hydrocarbons It is standard practice in the oil industry to have custody transfer measuring points verified with respect to an on site reference. Depending on the capacity and location of the measuring point, such verifications are very complex and costly – or for practical reasons simply not possible. Therefore, the oil industry often requests an advance cali bration with hydrocarbons as additional verification for the “integrity” of the meter in question. Endress+Hauser is one of the few Coriolis flowmeter manufacturers which offer such calibrations directly at the factory: • Flow range: – FCP 21 rig: 2 to 1200 m 3 /h (8.8 to 5283 gal/min) – FCP 22 rig: 2 to 800 m 3 /h (8.8 to 3523 gal/min) • Viscosity range: – FCP 21 rig: 15 to 32 cSt – FCP 22 rig: 100 to 300 cSt • Diameters (FCP 21/22): DN 50 to 400 (2 to 16") • Expanded measurement uncertainty: 0.05% o.r. PremiumCal – for highest accuracy Highly accurate flowmeters are being used more and more frequently in process control. In order to verify the excellent accuracy of modern Coriolis flowmeters in accordance with internationally accepted standards, a team of engineers, technicians and designers got together at Endress+Hauser with the aim of improving the design of an existing, highly accurate production calibration rig to make it – from a pro duction site perspective – the best in the world. The measurement uncertainty achieved with this Premium Cal rig is 0.015% – equivalent to the content of a single champagne glass per one thousand liters of water! Thus, Promass F/Q/O/X Coriolis mass flowmeters from DN 8 to 400 (3/8 to 16") can be calibrated to a maximum permissible error of ±0.05%. Calibration with air When calibrating mass flowmeters with air as a reference fluid, Endress+Hauser sets the bar very high as well. The air calibration rigs installed for this purpose in Reinach (Switzerland) and Greenwood (USA) are one of the few that operate with such a high degree of automation. Multiple adapter revolvers enable the devices under test to be slot ted and perfectly aligned with the rig pipeline for different nominal diameters DN 15 to 100 (1/2 to 4"). The system is also capable of running fully automated leak tests. The air flow range of such a calibration system is between 0.05 to 10 000 kg/h at laboratory conditions. An array of traceable and periodically calibrated reference meters (nozzles, rotary piston and turbines) ensure the calibration of customersʼ flowmeters within a measurement uncertainty of 0.3%. A special climate control system keeps the air inside the calibration laboratory at a constant 24 °C (75.2 °F) and 40% humidity day and night.

Endress+Hauser calibration concept movie : www.eh.digital/3cyVwft