LEVEL GAUGE

Level Gauges allow the measurement of liquid levels inside a container such as a tank or a collection basin. Some can also detect the level of two distinct liquid phases, this is referred to as Interface Service.

Level indicators can also function as transmitters if they have a 4-20 mA output.

They are divided into several types, depending on the characteristics of the liquid and the tank. These include:

1. Glass Level Gauges: a glass window allows the visual inspection of the liquid inside the container. Reflective glass can show the liquid as black to distinguish it from steam.
2. Magnetic Level Gauges: a float inside a steel chamber is magnetically coupled to an external indicator.
3. Bicolor Level Gauges: a special geometry of the instrument body and LED illuminators display the liquid as green and the steam as red through the viewing windows.
4. Resistive, Capacitive, or Multi-probe Level Indicators: ceramic probes detect conductivity difference between liquid and steam.
5. Float and Tape Level Gauges: a float is connected with a tape to an indicator, which can be a graduated scale or a dial with a pointer.
6. Magnetostrictive Level Transmitters: a steel rod contains a wire that generates a magnetic field. A float with an internal magnet interacts with this field, causing a wire torsion that indicates float position.
7. Reed Level Transmitters: a steel rod contains reed contacts. A float with a magnet closes these contacts as it moves, changing the overall resistance.
8. Radar Level Indicators: an antenna emits electromagnetic waves; the instrument measures the time it takes for the wave to reflect off the liquid. They can be Free or Guided Wave types.
9. Torque Bar Indicators: buoyancy force on a displacer immersed in liquid is transferred to an indicator via a torsion spring.

Discover Officine Orobiche Level Gauges: https://www.officineorobiche.it/en/categoria-prodotto/level-indicators/