Measuring tank levels in wastewater processing is a difficult task to carry out with repeated accuracy and reliability. Liquids containing contamination and suspended solids suggests that the best option for measuring liquid levels is to use a sensor that does not come into contact with the fluid itself, such as Ultrasonics, to try to minimise the potential of false reading caused by contamination build-up or corrosion.
However, the 7014 conductive sensor from Gill Sensors & Controls is challenging the assumption that non-contact is the best answer to the seemingly intractable problem of reliable level measurement.
First we take a quick look at 5 benefits of the conductive sensor and then some of the comparative drawbacks of ultrasonic devices.