Facilities & Process Engineering

LALL meaning in oil and gas

Definition

Level Alarm Low Low

LALL means Level Alarm Low Low. Usually initiates a shutdown of a process system once the vessel level is at a specified minimum level. It is usually preceded by a LAL (low level alarm), which is an alarm (audible…

Usually initiates a shutdown of a process system once the vessel level is at a specified minimum level. It is usually preceded by a LAL (low level alarm), which is an alarm (audible, visual) to the control room operator or plant operator.

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