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8.1.3.3
Settings (Define Alarms and Events)
The Settings tab allows users to change all
settings relevant to how the device interacts
with the Layer N Cloud. Users can customize
the device name, alarm/event thresholds,
and sensor reporting properties.
To set a local alarm output once you are in
the Settings tab, define the parameters of
the alarm by defining the threshold. Your
alarm can be configured to trigger when
readings go Above, Below, or Out of Range
of your defined threshold. Once you have
defined your alarm parameters, click
Update to finalize your changes.
8.1.3.4
What is Deadband in the Alarm Settings?
It is standard to establish the desired threshold or setpoint to trigger an
alarm when a condition is met. Triggering an alarm repeatedly in a
short period, however, can produce unwanted results, such as having
the alarm flip between inactive and active several times and triggering
unwanted actions tied to that alarm as a result. Additionally, the
constant alarm email notifications may result in an email service shut
down.
To solve the alarm chattering issue, Omega has implemented a
Deadband feature into the Layer N Cloud. Also known as hysteresis, the
deadband establishes a range, or threshold, of values from the setpoint
that the Layer N Cloud will accept before the alarm is triggered. The
deadband threshold can either be defined as an absolute value or as a
percentage of the setpoint value.
Figure 33: Layer N Cloud Settings
Figure 34: General Settings
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