Volume Flow SensorsWhen diagnosing and condition monitoring of hydraulic systems, measurement of volume flow is very important. To measure volume flow, Hydrotechnik offers 4 product families to have the right sensor for every application: Turbine volume flow meters (HySense® QT) function via the flow principle. A medium flow through a tube in an axial direction makes the turbine wheel turn. The single turns are caught by a signal pick-up which converts the signals into digital impulses. The gear volume flow meters (HySense® QG) function via the displacement principle. Gearwheels are set in motion via a medium. With each rotation of the gearwheels, a defined amount of liquid is transferred through the volume flow sensor. The rotation movements of the gearwheels are caught by a signal pick-up which converts the signals into digital impulses. Oval wheel volume flow meters (HySense® QO) function via the displacement principle. Here, two geared oval wheels are driven by the pressure of a liquid. They are rolling on each other. With each rotation a defined amount of liquid is transferred through a counter. The rotations are caught by a signal pick-up which converts the signals into digital impulses. Load valves with turbine volume flow sensors (HySense® QL) are made for simulation of load conditions. A load can be simulated with the throttle valve to record the characteristic curve of the pump. A load valve combines with a volume flow sensor, a valve and test points for pressure and temperature. Important suggestion/tips for all volume flow sensors Each volume flow sensor is delivered with a calibration certificate. Please keep this safe. We recommend a re-calibration of the sensor every 1 or 2 years. Please use the international calibration service of Hydrotechnik through your local distributor. Multiple calibrations for different viscosities for all volume flow sensors are offered.
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