This firm has introduced its first stand-alone compressor anti-surge controller with a built-in color HMI (human machine interface) display. The Em-400 HMI displays a live compressor surge map for easy viewing of compressor performance. In addition to the live compressor map, the Em-400 HMI also provides all of the information and control capability found in more expensive HMI systems. This compact display, which is built into the front panel of the Em 400 controller, does not require any additional panel space. Other features of the Em-400 include control of up to three compressor bodies, capacity control, performance monitoring, load sharing, recycle transfer control, user-directed pressure override control and standard ethernet communications. — Petrotech, Inc., New Orleans, La.
This Anti-Surge Compressor Controller has an Built-in HMI
| By Chemical Engineering