Applications:

    Float-operated sensor are often used in:

Advantages of Float-operated sensors for water level measurements:

• Since many older sites were designed for mechanical float operated measurement, encoders are easily adapted to existing float gear and gaging system.
• Float-operated systems are easy to understand and troubleshoot.
• Most encoders offer good temperature stability.
• Various electronic technologies can be used including digital incremental and digital absolute (encoders); analog absolute (potentiometers and Linear variable differential transformers); or digital absolute (synchros).
• Float is protected in a stilling well and sensor is not in direct contact with the water. Therefore the risk of damage is low from debris flow or fouling.
• Highly accurate with large sized floats.

Limitations of Float-operating sensors in water level measurement:

• Requires a stilling well to assure stability and reliability of the float-operating system.
• Rapid changes in water level may result in the cable / tape line becoming disengaged from the float-operating sensor’s pulley.