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How to Configure Temperature and Humidity Sensors in AP9335T/AP9335TH models ?

Path: Configuration > RPDU > Environment
Note: To use this feature, you must have installed an optional Schneider Electric Temperature
Sensor (AP9335T) or Schneider Electric Temperature/Humidity Sensor (AP9335TH) to your Rack
PDU.
For temperature:
• If the high temperature threshold is reached, the system generates a Warning alarm.
• If the maximum temperature threshold is reached, the system generates a Critical alarm.
Similarly, for humidity:
• If the low humidity threshold is reached, the system generates a Warning alarm.
• If the minimum humidity threshold is reached, the system generates a Critical alarm.
Note: Click the thermometer symbol in the upper right corner to toggle between
Fahrenheit and Celsius.
To configure temperature and humidity sensors:
1. Enter values for minimum, maximum, high, and low thresholds.
2. Enter Hysteresis values.
3. Enable alarm generation as desired.
4. Click Apply.
HysteresisThis value specifies how far past a threshold the temperature or humidity must return to
clear a threshold violation.
• For Maximum and High temperature threshold violations, the clearing point is the
threshold minus the hysteresis.
• For Minimum and Low humidity threshold violations, the clearing point is the threshold
plus the hysteresis.
Increase the value for Temperature Hysteresis or Humidity Hysteresis to avoid multiple alarms if temperature or humidity that has caused a violation then wavers slightly up and down. If the
hysteresis value is too low, such wavering can cause and clear a threshold violation repeatedly.
Example of rising but wavering temperature: The maximum temperature threshold is 85°F, and
the temperature hysteresis is 3°F. The temperature rises above 85°F, violating the threshold. It then
wavers down to 84°F and then up to 86°F repeatedly, but no clearing event and no new violation
occur. For the existing violation to clear, the temperature would have to drop to 82°F (3°F below the
threshold).
Example of falling but wavering humidity: The minimum humidity threshold is 18%, and the
humidity hysteresis is 8%. The humidity falls below 18%, violating the threshold. It then wavers up to
24% and down to 13% repeatedly, but no clearing event and no new violation occur. For the existing
violation to clear, the humidity would have to rise to above 26% (8% past the threshold).
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