Tank Alarms Data
ADM003GVAE1005 357
FLOW ALARM HOLDOFF
This variable is the sometimes known as deadband or hysteresis. It is the amount by which the alarm limit must
be cleared before the alarm is deactivated. For example, if the High flow alarm setpoint is 10 and the flow alarm
holdoff is 1, the flow must return to a value of 9 before the High flow alarm is deactivated. This variable is entered
when configuring the tank point and cannot be modified from Operate
LEVEL RATE ALARM - CHANGE IN LEVEL RATE ALARM
This variable is a composite value that displays a coded variable representing the highest priority level rate
alarms for the tank. Possible values are Normal, High or Low. FuelsManager calculates this alarm based on the
current level rate and the alarm limits configured for the tank
LEVEL RATE HIGH S.P - HIGH LEVEL RATE SETPOINT
This variable is the limit for a High level rate alarm. If the tank level rate exceeds the High Alarm value, then a
High alarm is activated. Please note that FuelsManager compares the value of the level rate variable regardless
of it's sign, meaning that a level rate of -10 in/min would trigger a high level rate alarm if the High level rate limit
was 9. This variable is entered when configuring the tank point, but can be modified from Operate by a user with
sufficient privileges
LEVEL RATE LOW S.P. - LOW LEVEL RATE SETPOINT
This variable is the limit for a Low level rate alarm. If the tank level rate falls below the Low Alarm value, then a
Low alarm is activated. Please note that FuelsManager compares the value of the level rate variable regardless
of it's sign, meaning that a level rate of -10 in/min would trigger a high level rate alarm if the High level rate limit
was 9. This variable is entered when configuring the tank point, but can be modified from Operate by a user with
sufficient privileges
LEVEL RATE ALARM HOLDOFF
This variable is the sometimes known as deadband or hysteresis. It is the amount by which the alarm limit must
be cleared before the alarm is deactivated. For example, if the High level rate alarm setpoint is 10 and the level
rate alarm holdoff is 1, the level rate must return to a value of 9 before the High level rate alarm is deactivated.
This variable is entered when configuring the tank point and cannot be modified from Operate
PRESS VAPOR ALARM - VAPOR PRESSURE ALARM
This variable is a composite value that displays a coded variable representing the highest priority pressure
alarms for the tank. Possible values are Normal, High or Low. FuelsManager calculates this alarm based on the
current vapor pressure and the alarm limits configured for the tank
PRESS HIGH SETPOINT - HIGH PRESSURE SETPOINT
This variable is the limit for a High pressure alarm. If the tank pressure exceeds the High Alarm value, then a
High alarm is activated. This variable is entered when configuring the tank point, but can be modified from
Operate by a user with sufficient privileges
PRESS LOW SEPOINT - LOW PRESSURE SETPOINT
This variable is the limit for a Low pressure alarm. If the tank pressure falls below the Low Alarm value, then a
Low alarm is activated. This variable is entered when configuring the tank point, but can be modified from
Operate by a user with sufficient privileges
Tank Alarms Data
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