Turning a flow indicator into a sensor

10 May 2021

The Elesa range of visual flow indicators can now be specified as flow measurement devices with the addition of an external PLC compatible sensor and impellor mounted activating clips.

This allows the units to be quickly adapted from passive indicators of flow – as protection against blockages for example – into active measurement equipment as part of the adjusting and updating of hydraulic system performance.

The new metering indicators are available in ¾in and 1in sizes to suit a wide range of applications in fluid systems where cooling or liquid transfer systems are employed. 

The new visual flow indicator sensor can be mounted in any external position correctly aligned with the indicator tube. The indicator can then operate in two-way liquid flows with a viscosity lower than 30cSt. 

The axial flow devices sit in the moving fluid, causing the rotor to spin, which generates a pulsed signal proportional to the speed of the rotor, and so through calibration, gives the flow rate.

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