Flow Transmitter VHZ, VHZ-008GA, VHZ-008GK, VHZ-010GA, VHZ-010GK, VHZ-020GA, VHZO-020GA, VHZ-025GA
● Ideally suited for viscous media (oils)
● Light and compact construction in an aluminium housing
● For cost-sensitive applications
The VHZ gearwheel flow meter measures the flow by a volumetric principle, in which a pair of gearwheels is moved proportional to the flow rate. The movement of the gearwheels is measured through the enclosing housing wall by a sensor. The devices are suitable for viscous, fluid, self-lubricating media, as well as for aqueous fluids such as soaps, pasts, emulsions etc. which have a non-abrasive character. Because of the volumetric functioning principle, the devices are almost completely independent of viscosity. A push-pull transistor output, an A / B output or a two wire output are available as signal output. The push-pull output can as desired be connected as a PNP or an NPN output, and emits a frequency proportional to the flow rate. The A / B output consists of two push-pull outputs, whose signals are phase-shifted by 90 °. This makes it possible to determine the direction of flow using the bidirectionally driven sensor. The 2 wire model represents the pulse as two different currents, and has the advantage of reduced wiring effort. Alternatively, it is possible to use add-on electronics with signal processing, in the series OMNI, FLEX and LABO.