A percentage of measured distance statement describes a parameter that is in error by a constant percentage of the actual distance measurement. In the measurement of a 1000 mm high vessel (100% level located 100 mm below the sensor) measured with an accuracy of 1 percent of measured distance, the absolute error can be calculated as: An absolute (fixed) distance error statement … [Read more...] about Level Gauge Performance (Part 2 of 3)
measurement
Level Gauge Performance (Part 1 of 3)
The purpose of installing a level measurement system is to measure level accurately in a reliable manner. Whereas issues dealing with physical properties, process parameters, electronic features, and interconnections are often considered extensively, the quantification of the expected measurement quality of the installed level measurement system can be virtually neglected. … [Read more...] about Level Gauge Performance (Part 1 of 3)