EZT-570S User Manual
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The low and high alarm set point fields are shown for all alarm types; however, only the
high set point is used for ‘high’ alarms, low for all ‘low’ alarms and both fields are used for
Absolute and Deviation ‘both’ alarm types.
Alarm Set Points
High:
The alarm high set point defines the process value that will trigger a high side
alarm. It must be higher than the alarm low set point.
Low:
The alarm low set point defines the process value that will trigger a low side alarm.
It must be lower than the alarm high set point.
Differential:
The differential (often referred to as alarm hysteresis or dead band) defines how far
the process must return into the normal operating range before the alarm can be
cleared.
The
Alarm Message
is the text notification that appears on the Alarm screen when the alarm
activates. This message can be edited (up to 24 characters maximum) so that the alarm message
more accurately describes what the alarm means.
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