West Control Solutions N8080 (for 2xxx) - Manual (Page 7)

1.6 RESETTING A LATCHED ALARM
If Relay 1 is configured to act as a latched Alarm 1 relay, when this alarm is
active, it can be reset by selecting the process variable display and then pressing
the Reset (RST) key. The alarm will not be reset if the alarm condition exists at the
time reset is attempted.
1.7 ALARM HYSTERESIS
The Alarm Hysteresis parameter applies a hysteresis band on the “safe” side of the
Alarm value. The effect of the hysteresis value (a percentage of input span) on the
operation of the different types of alarm is illustrated below:
1.8 SUMMARY OF PARAMETER IDENTIFIERS
(SECONDARY DISPLAY)
OM091-1 Volume I 1-4
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Secondary Display Displayed Parameter
Blank Process variable
Maximum (High) value
Minimum (Low) value
Alarm 1 Elapsed Time
Alarm 1 value
Alarm 1 Hysteresis value
Alarm 2 value
Alarm 2 Hysteresis value
Total value