Point Level Measurement For Bulk Solids
There are several principles for measuring Point levels in Bulk solids:
VIBRATION
Function
The basis of point level detection with vibrating level switches is a tuning fork, i.e. a vibrating fork. If the vibrating probe comes into contact with the medium, the oscillation rate changes and the vibrating level switch outputs a switching command. Vibrating level switches are used as overfill protection or empty alarm.
CAPACITIVE
Function
In capacitive point level measurement, capacitive sensor and vessel form the two electrodes of a capacitor. Any change in capacitance due to a level change is converted into a switching signal. Thanks to shortenable cable and rod versions, the level switches can be adapted to any application and often serve as overfill protection, dry run protection, oil/water detection and foam detection.
RADAR
Function
In capacitive point level measurement, capacitive sensor and vessel form the two electrodes of a capacitor. Any change in capacitance due to a level change is converted into a switching signal. Thanks to shortenable cable and rod versions, the level switches can be adapted to any application and often serve as overfill protection, dry run protection, oil/water detection and foam detection.