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Diagnostics for maximum certainty
KROHNE is the first and to date only manufacturer to offer its customers complete application and process diagnostics as well as an accuracy and linearity test (out-of-spec diagnostics) in addition to the usual device diagnostics for the OPTIFLUX line.
In a working committee led by NAMUR, representatives of manufacturers and users met to define which application problems (e.g. gas bubbles) should ideally be detected by the measuring devices for each measuring process. With the indicators supplied by OPTIFLUX and knowledge of the process, the user can detect the following application problems with a high degree of certainty:
•Gas bubbles
•Electrode corrosion, deposits on electrodes
•Short-circuit
•Low conductivity
•Partial filling of measuring tube
•Liner damage
•External magnetic fields
•Disrupted flow profile
During the out-of-spec test, a determination is made, both online and cyclically, as to whether the device is still within its specifications. In particular, the accuracy is tested by feeding a test signal. The linearity of the device and the accuracy of the field current with which the magnetic field is generated are also checked.
Thanks to the 3x100%-diagnostics, the OPTIFLUX is much more than a simple flowmeter: it examines the process and provides the user with valuable information. In this respect, the OPTIFLUX even exceeds the requirements of VDI/VDE/NAMUR 2650.
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