Know where the wind is blowing from:
Measuring the value and direction of flow with
SCHMIDT® flow sensors and LED displays
In practice, for example in ring main compressed air pipes or
circulation ducts, it very often happens that the flow does not
always come from the same direction. This greatly affects the
determination of the consumption rates: It leads to incorrect
results,
because the backflow through the flow meter is also
added to the forward flow rather than subtracted. The mechanical
(paddle) switches for flow detection used nowadays for
solving the problem are not capable of detecting the direction of
flow with small flow volumes, resulting in relatively inaccurate
volume measurements.
perfectly. They have been designed as large-sized
wall display and can be mounted in any readily accessible position.
The analog output signals are scaled by one (MD 10.010) or two
sensors (MD 10.015) and displayed. In addition, an analog value
(4 … 20 mA or 0 … 10 V) is provided via a galvanically separated
analog output. Furthermore, the values can be used to define
switching points and output directly via two relays.
The power supply can be provided by the mains voltage or via 24
Volt (DC) – the connected sensors are supplied with power directly
by the LED display.