The precise and effective level measurement ensures reliable and continuous operations by maintaining material inventory and by increasing the plant availability and reliability through the prevention of spillages or other process disturbances.
Integral to process control in many industries, level measurement sensors fall into two main types.
Point level measurement sensors are used to mark a single discrete liquid height–a preset level condition. Generally, this type of sensor functions as a high alarm, signaling an overfill condition, or as a marker for a low alarm condition.
Continuous level sensors are more sophisticated and can provide level monitoring of an entire system. They measure fluid level within a range, rather than at a one point, producing an analog output that directly correlates to the level in the vessel.