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Expert Net Control 2312
Configuration
Configuration - Sensors
3.2.6
Choose sensor port: Selects a type of sensor to configure it. The first digit "1" indicates the number of
the sensor port (only important for devices with more than one sensor port). This is followed by the
sensor name (eg 7002 for the hybrid sensor), a letter for the sub-type sensor and the changeable
sensor name. The sensor subtypes are defined as: "T" = temperature, "H" = humidity, "I" = sensor in-
put.
Sensor Name: Changeable name for this sensor. Temperature and humidity can have different na-
mes, even if they are from the same sensor.
Generate messages: Enables the generation of messages.
Maximum/Minimum value: Here you can choose whether, and at what Maximum/Minimum tempera-
ture or humidity measurements limits the alerts are send via SNMP traps, syslog or email.
Hysteresis: This is the distance between the value that is signaling an overrun of a limit and the value
that signals an underrun of the same limit.
Min/Max measurement period: Selects the time range for the sensor min / max values ?
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on the over-
view web page.
Hysteresis Example:
A Hysteresis value prevents that too much messages are generated, when a sensor value is jittering
around a sensor limit. The following example shows the behavior for a temperature sensor and a hys-
teresis value of "1". An upper limit of "50 °C" is set.
Example:
49.9 °C - is below the upper limit
50.0 °C - a message is generated for reaching the upper limit
50.1 °C - is above the upper limit
...
49.1 °C - is below the upper limit, but in the hysteresis range
49.0 °C - is below the upper limit, but in the hysteresis range
48.9 °C - a message is generated for underrunning the upper limit inclusive hysteresis range
...
