Digital Hydraulic Multimeter

Webster Instruments’ DHM series provides a digital readout of pressure, peak pressure, volumetric efficiency and hydraulic horsepower, as well as flow rate and fluid temperature. Two models offers flow ranges of 100 gpm or 200 gpm, with peak pressure to 9,000 psi and temperatures as high as 250 degrees Fahrenheit.


The user can select three main display screens via a four-button keypad. Pump volumetric efficiency is calculated and displayed by establishing baseline flow and pressure point and subsequently increasing system pressure with the loading valve. The built-in, bidirectional loading valve features safety discs that internally bypass overpressure oil through the valve.