GÜDE Expert Power Control 8291, Manual

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Expert Power Control 8291 © 2020 GUDE Systems GmbH
Configuration
Sensor: 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 fol-
lowed by the sensor name, and the changeable sensor name.
Sensor Name: Changeable name for this sensor. Temperature and humidity can have dif-
ferent names, even if they are from the same sensor.
Select Sensor Field: Selects a data channel from a sensor.
Enable ... Messages: Enables the generation of sensor messages.
Maximum/Minimum value: Here you can choose whether, and at what Maximum/Min-
imum temperature or humidity measurements limits the alerts are send via SNMP traps,
syslog or E-Mail.
Hysteresis: This describes the margin of when an event is generated after the measured
value has crossed the chosen limit.
Message channels: Enables the generation of messages on different channels.
With the beeper you can choose between a continuous or an intermittent tone. With
Flashing Display the 7-segment display flashes. By pressing a front panel button the
beeper and the flashing display will be reset.
Console push-messages
:
This option allows the output of sensor values on the console
at a configured time interval, or when a certain threshold has been reached.
Min/Max measurement period: Selects the time range for the sensor min/max values on
the overview web page.
Enable beeper for AC alarms: Activates the beeper for all AC limit messages.
Enable beeper for sensor alarms: Activates the beeper for all sensor limit messages.
System Events
If you select "System" as Sensor, it is possible to select the message channels for
global events, such as switching a port.
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 hysteresis 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