3. From the Alarms tab window, alarms can be configured.
5.1.1 Sand mass accumulation
The sand rates at which the accumulation will start being counted
may be set from this window.
Sand rate threshold for sand mass accumulation
This is the sand rate at which the system will start measuring
accumulated sand. Ideally, this would be matched to sand rate alarm
threshold.
Default value: 1.000 g/s
Deadband for sand mass accumulation
This is how much the sand rate has to drop before the accumulation
will be halted.
Example: With a threshold set to 20 g/s and when this drops to 19.8
g/s, the accumulation calculation will be halted.
Sand mass accumulation reset time
Enter the maximum allowable time between two alarm output states
(i.e. when accumulator is on) before the accumulator is reset and
already triggered alarm is reset.
5.1.2 Sand alarm mass threshold
Once the sand production rate exceeds the set Sand Alarm Level, an
accumulator starts to accumulate the sand production until the rate
falls below the Sand Alarm Level minus Alarm Bound Limit.
If the rate drops below this for a time period longer than the Time to
alarm reset, the accumulator is reset to zero.
Quick Start Guide May2024
58 Emerson.com/Rosemount
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