Selasa, 13 April 2010

4 Biggest Mistakes in Instrumentation

Despite ongoing advancements in measurement and communications technology, instrumenting a process for feedback control remains a technical challenge. Today’s sensors are certainly more sophisticated than ever
before, and fieldbus technology has simplified  many installation issues considerably. Nonetheless, much can still go wrong with an instrumentation project.
Mistake #1:
Selecting the wrong sensor
Technology mismatch Although it’s generally obvious what quantity needs to be measured in a flow, temperature, or pressure control application, it’s not always obvious what kind of flow meter, temperature sensor, or pressure gauge is best suited to the job. A mismatch between the sensing technology and the material to be sensed can lead to skewed measurements and severely degraded control.