Rain Master Weather Center II, Руководство пользователя

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Rain Master Irrigation Systems Weather Center II User Manual
Page 5
Table 1 - Sensor Placement
Sensor Type Measurement Height Exposure Considerations
Wind 3.0 /- 0.1 meters
is recommended (AASC).
2.0 /- 0.1 meters,
ten /- 0.5 meters
(optional) AASC.
Ten meters (WMO &
EPA)
No closer than ten times the
obstructions height.
Air
Temperature Two meters for
temperature only (EPA).
Two Meter and 10 meter
for temperature
difference (EPA).
The EPA recommends the
sensor be no closer than
four times the obstructions
height.
Relative
Humidity 1.5 meter +/- 1 meter
(AASC).
1.25 – 2.0 meters (WMO)
The sensor must be housed
in a ventilated radiation
shield to protect the sensor
from thermal radiation.
The EPA recommends the
sensor be no closer than
four times the obstruction’s
height and least 30 meter
from large paved areas.
Solar
Radiation Height should be
consistent with the
exposure standard
(AASC, WMO, and
EPA). To facilitate
leveling/cleaning, CSI
recommends installing at
a height of 3 meters or
less. The sky should not be
blocked by any surrounding
object. However, objects <
10 degree above the
horizontal plane of the
sensor are allowed.
Precipitation 1.0 /- 0.2 meter AASC & EPA suggest the