Sahana Engineering

A float switch is a type of level sensor, a device used to detect the level of liquid within a tank. The switch may be used to control a pump, as an indicator, an alarm, or to control other devices. One type of float switch uses a mercury switch inside a hinged float.

Capacitance Level Sensor is a compact, low cost, level transmitter with analogue out-put designed to measure the level Of various non viscous, non conductive fuel oils, such
as Diesel. Measuring range is 0.2 to 2 m for rod probe version. The probe forms an electrical capacitor with the
grounding stell well provided on the sensing rod With the vessel empty, an initial capacitances exists between the electrode And the metal well or the auxiliary reference probe. When the probe become covered with material to
be measured the capacitances will increase and change will be measured and convered into an analogue output signal proportional to the change.