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V-Guard Product Details

The HP-Guard module is designed specifically to provide a cost effective, reliable measurement of in-cylinder dynamic pressure for reciprocating compressors.  By relating cylinder pressure to crank-angle, HP-Guard will calculate importation performance and machinery condition parameters. These calculations allow users to "safely" maximize throughput on their reciprocating compressors and gain a very accurate measurement of load on the compressor driver, which is critical for accurate emission reporting. The HP-Guard module accepts up to twelve dynamic pressure sensors (6 double-acting cylinders) plus crank angle referenced speed/phase input signals. The internal processor calculates cylinder end IHP, total load, rod load, percentage of rod reversal, and cylinder end volumetric efficiencies. This calculated data, along with suction and discharge pressure and speed, is communicated to the user's PLC or DCS system via standard RS-485 or Ethernet, as well as Windrock system controller for detailed diagnostics and alarms. An optional relay is also available for remote alarm indication.