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Jul 1, 2006 12:00 PM

Webster Instruments has released the DHM series Digital Hydraulic Multimeter. The DHM builds on a proven design by providing digital readout of pressure, peak pressure, volumetric efficiency, and hydraulic horsepower in addition to flow rate and fluid temperature. Two models offer flow ranges of 100 or 200 gpm, peak pressure to 9,000 psi, and temperature to 250° F.

Three main display screens can be user selected with the four-button keypad. Pump volumetric efficiency is automatically calculated and displayed by setting a baseline flow and pressure point and then increasing system pressure with the loading valve. The built-in bidirectional loading valve features safety discs that internally bypass overpressure oil through the valve. A shuttle valve is integral to the load valve design, allowing high-pressure sensing from one point regardless of flow direction. Peak pressure display retains pressure spike values lasting at least 1 millisecond, and memory can be cleared via the keypad. Hydraulic horsepower can be selected and is also automatically calculated and displayed on the high-contrast, sunlight-readable, 2" × 4" LCD screen.

For further information, contact Webster, Milwaukee WI 52335.