American Fibertek N-TAH - Manual (Page 36)

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Each measured environmental parameter has a set of alarm and warning thresholds
programmed. The user may set the alarm and warning values, along with the actions to
be taken when a value exceeds them, through this page.
Setting Default Value Range
Warning Varies
Enabled Email Not Enabled
Not Enabled
Aux Action 1 Local Auxiliary-1 1-2
Duration 0 seconds Follow : 10, 30,or 60 seconds
15 or 30 minutes : 1 or 4 hours
Indefinitely
Aux Action 2 Local Auxiliary-2 1-2
Duration 0 seconds Follow :10, 30,or 60 seconds
15 or 30 minutes : 1 or 4 hours
Indefinitely
Alarm Varies
Email Off On/Off Checkbox
SNMP On On/Off Checkbox
Aux Action 1 Local Auxiliary-1 1-2
Duration 0 seconds Follow :10, 30,or 60 seconds
15 or 30 minutes : 1 or 4 hours
Indefinitely
Aux Action 2 Local Auxiliary-2 1-2
Duration 0 seconds Follow :10, 30,or 60 seconds
15 or 30 minutes : 1 or 4 hours
Indefinitely
The warning and alarm levels are preset according to the type of values being measured
by the probe. The threshold settings may be upper or lower bounds, according to the
measurement type. (For example, Temperature and Humidity are upper bounds, while
Airflow is a lower bound).
The N-TAH will measure all environmental data every ten seconds, and will compare the
readings to the warning and alarm thresholds. If any of the readings exceed the warning
or alarm levels it will take an action as determined by the settings on this screen.
The Email checkbox, when set, will tell the N-TAH to send an email to the email address
set on the ‘IP Ethernet Settings’ screen. This email will indicate which reading on which
probe exceeded the alarm or warning level, along with a timestamp and the name and
location of the N-TAH unit.
The SNMP checkbox, when set, will tell the N-TAH to send a trap message to the SNMP
server(s) configured on the SNMP setup page. This message will be sent when any of
the probe readings goes into or out of the alarm or warning levels, and will contain the
current value of the measured reading.
The ‘Aux Action 1’ and ‘Aux Action 2’ settings are used to signal the N-TAH to trigger up
to two local aux outputs in response to a measurement exceeding alarm or warning
values. The N-TAH will trigger the set aux contact outputs for the indicated time when a
value exceeds the alarm or warning levels.