Gear flow transmitter VHZ series

for liquidscompactanalog output

Ideally suited for viscous media (oils) Light and compact construction in an aluminium housing For cost-sensitive applications ● Analog output and switching output ● Designed for industrial use ● Small, compact construction ● Simple installation ● Simple to use ● Cable outlet infinitely rotatable Characteristics The VHZ gearwheel flow meter measures the flow on the 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. The FLEX transducer on the sensor has an analog output (4..20 mA or 0..10 V) and one switching output, which can be configured as a limit switch for monitoring minimal or maximal, or as a frequency output. The switching output is designed as a pushpull driver, and can therefore be used both as a PNP or an NPN output. The state of the switching output is signalled with a yellow LED in the connection; the LED has all-round visibility. The sensor is configured in the factory, or alternatively this can be done with the aid of the optionally available ECI-1 device configurator (USB interface for PC). A selectable parameter can be modified on the device, with the aid of the magnet clip provided. In this case, the current measured value is saved as the parameter value. Examples of these parameters are the switching value or the metering range end value.