HW Group Poseidon 2250, Краткое руководство

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Poseidon 2250 – Short Manual HW group
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Sensor hysteresis
The Hysteresis setting defines a tolerance band for alarm alerts. This feature prevents multiple
alarm alerts if the reading oscillates around the specified threshold. See the graph for an
explanation.
Without a hysteresis of 5°C, the alarm raised at
point 8 would end at point 9 . With the hysteresis
function, the alarm continues until the temperature rises above the tolerance band ( point 10 ), that is,
5°C + (-15°C) = -10°C.
Hysteresis = 5°C: The unit sends 3 e-mails (SMS)
Alarm at points 0..4, 8..10, 12 and beyond
No hysteresis (0°C): The unit sends 8 e-mails (SMS)
Alarm at points 0..1, 2..3, 8..9, 12..13, 14 and beyond
• For more information about data formats, variable identification and the SDK,
see the detailed manual for Poseidon product line .
TIP