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14-8
14.4 Alarm Function Specifications
Number of alarms :
Up to four alarms for each channel
Alarm types :
Upper and lower limits, delay upper and lower limits,
difference upper and lower limits, and upper limit and lower on
rate-of-change
Alarm delay time :
Selectable from 0 s to 3600 s for each channel
Interval time of rate-of-change alarms :
The scan interval times 1 to 15, common to all channels.
Display :
The alarm status (type) is displayed in the numerical value
display area upon occurrence of an alarm. A common alarm
indication is also displayed in the status display section.
The alarm indication behavior : non-hold or hold-type can be
selectable for common to all channels.
Hysteresis :
On (0.5% of display span)/off selectable (applied to upper and
lower limits alarms, common to all measurement channels)
Relay outputs (option) :
Number of points : 2, 4, 6 points
Relay action : Energized/deenergized, hold/non-hold, AND/
OR, reflash function selectable.
Alarm information :
The times of alarm occurrences/recoveries, alarm types, etc.
Up to 120 latest alarms are stored in the internal memory.
Displayed on the alarm summary screen.
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