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Using the Transmitter
7.5
Handling status alarms
Specific process or flowmeter conditions cause status alarms. Each status alarm has an alarm code.
Status alarms are classified into three severity levels: Fault, Information, and Ignore. Severity level
controls how the transmitter responds to the alarm condition.
Note: Some status alarms can be reclassified, i.e., configured for a different severity level. For
information on configuring severity level, see Section 8.9.1.
Note: For detailed information on status alarms, including possible causes and troubleshooting
suggestions, see Table 11-4. Before troubleshooting status alarms, first acknowledge all alarms. This
will remove inactive alarms from the list so that you can focus troubleshooting efforts on active
alarms.
The transmitter maintains two status flags for each alarm:
•
The first status flag indicates "active" or "inactive."
•
The second status flag indicates "acknowledged" or "unacknowledged."
When the transmitter detects an alarm condition:
•
An alarm is posted for the corresponding alarm:
-
The first status flag is set to "active."
-
The second status flag is set to "unacknowledged."
•
The transmitter checks the severity level for the specific alarm:
-
If the severity level is Fault, outputs go to their configured fault indicator (after the
configured fault timeout has expired).
-
If the severity level is Information or Ignore, outputs are not affected. They continue to
report process data.
When the transmitter detects that the alarm condition has cleared:
•
The first status flag is set to "inactive."
•
The second status flag is not changed.
•
Outputs return to reporting process data (Fault alarms only).
Operator action is required to return the second status flag to "acknowledged." Alarm
acknowledgment is not necessary.
7.5.1
Using the display menus
All active Fault or Information alarms are listed in the display alarm menu. The transmitter
automatically filters out Ignore alarms.
To view or acknowledge alarms using the display menus, see the menu flowchart in Figure C-19.
If the transmitter does not have a display, or if operator access to the alarm menu is disabled (see
Section 8.10.3), alarms can be viewed and acknowledged using ProLink II or the Communicator.
Alarm acknowledgment is not required.
Additionally, the display may be configured to enable or disable the Ack All function. If disabled, the
Ack All screen is not displayed and alarms must be acknowledged individually.
62
®
Micro Motion
Model 2400S Transmitters with Analog Outputs
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