9.13.Energy saving mode 1
Energy saving mode 1 initiates the following measures :
•
Ventilation of the temperature / humidity unit is deactivated.
•
All heating is deactivated.
•
The RADAR rainfall sensor does not operate continuously; the sensor is acti-
vated for one second per minute only; if during that period precipitation is
detected, the sensor will remain activated until the end of such event; if no
precipitation is detected, it is deactivated again after the one second.
•
The compass direction is acquired once only - when the device is switched on.
For this purpose the fan, which is otherwise usually deactivated, is switched
on for a brief period.
Advisory note This operating mode is subject to the following limitations :
•
If the fan is deactivated this may in conditions of strong direct sunlight lead to
discrepancies in temperature and humidity measurement.
•
Winter operation is only possible on a limited basis because ice may prevent
the rainfall sensor and wind measuring instruments from functioning properly.
•
The signal for rainfall detection may be delayed by up to two minutes. Short
events may in certain circumstances not de detected at all. This may result in
deviations affecting the accuracy of precipitation amounts detected.
9.14.Technical data
Dimensions
Operative range
Refresh rate
Connector colors
Interface
Supply voltage
Current consumption, device
Sleep mode on the device
332 x 150 mm (height x diameter)
Temperature -52 to +60
℃
2 seconds for all channels
Housing ruby red, levers light gray
RS-485 (line length up to 100 meters possible)
12 to 30 VDC
Supply via mains unit 24 V
All functions are available.
24 V from the mains unit, maximum 1.8 A
12 V from the ALMEMO
®
device typical 10 mA
Supply without mains unit 24 V (mobile operation)
Fan and heating are both deactivated.
12 V from the ALMEMO
®
device
typical 130 mA With rainfall radar running continuously
Operation in energy saving mode 1
typical 25 mA No rainfall test / no rain
typical 130 mA for 2 seconds per minute with rainfall test
typical 130 mA continuously with rain
not possible
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