The existing NE107 device diagnosis is thus extended to include VA specific application diagnostics: the device now detects, for example, blockages of the float caused by impurities in the medium or by strong, repeated pressure surges. Pulsations in liquid measurements with positive displacement pumps or compression oscillations in gas measurements are also detected. A message is also reported if the float is installed in the measuring cone upside down or is completely missing after maintenance or cleaning. The signalling severity of the individual diagnostic functions can be configured according to NAMUR NE107 classes: from “for information” to “maintenance required” or “out of specification” to “failure” with activation of the failure current signal.
The new functions not only increase application reliability, but also enable the measuring accuracy and service life of variable area flowmeters to be optimized with appropriate corrective measures. Existing devices can be retrofitted by exchanging modules in the field.
About KROHNE:
KROHNE is a global manufacturer and provider of process instrumentation, measurement solutions and services in many industries. Founded in 1921 and headquartered in Duisburg, Germany, KROHNE has over 4,000 employees and offers extensive application knowledge and local contacts for instrumentation projects in over 100 countries. KROHNE stands for innovation and highest product quality and is one of the market leaders in process industry.
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