Test smart process control valves in minutes

摘要

Differentiating between misbehaving process control valves and good ones can be a confusing, time- and labor-intensive task. Most proportional smart control valves have simple manual indicators for the percent of travel for a specific valve setting. That provides some performance information, but it isn't the most accurate reading, and it doesn't indicate how the valve performs under dynamic conditions. If the indicator is off even one or two percentage points, it can make a big difference in critical processes.