Notes On Alarms
Deviation, Inverse Band, and Normal Band Alarms track with setpoint.
When a latching alarm has been activated and the alarm condition has been removed, the
Mode/Enter key must be pressed to unlatch the alarm.
Outputs can be set up as an alarm, similar to the standard alarm format. Four types of alarms are available: Process, Deviation, Inverse Band, and Normal Band. All alarms may be configured to be inhibited on
Process Alarm: | Activates at preset value, independent |
| of setpoint. “High” process alarm |
| activates at and above alarm setting. |
| “Low” process alarm activates at and |
| below alarm setting. |
Deviation Alarm: | Activates at a preset deviation value |
| from setpoint. “High” or “Low” deviation |
| alarm activates above or below setpoint |
| according to the preset deviation value. |
Inverse Band Alarm: Activates when the process is within a specified band centered around the setpoint.
Normal Band Alarm: Activates when the process exceeds a specified band centered around the setpoint.
Latching Alarms
The Series C’s alarms may also be configured as latching
alarms by selecting in the Alarm Action parameter selection.
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