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.
LALL
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…
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