In many instances, due to trees and other obstructions, this is not possible. The wind speed
calibration allows you to correct for these obstructions. In addition to installation challen-
ges, wind speed bearings (any moving part) wears over time. To correct for wear, the cor-
rection value can be increased until the wind cups must be replaced. Without a calibrated
source, wind speed is a difficult parameter to measure. We recommend using a calibrated
wind meter and constant, high speed fan.
2. Rainfall Calibration (1 Hour, 24 Hour, Daily, Monthly, Total)
Press the SET button again and the Rain Calibration value will begin flashing (the default
is 1.0). Press the [+] or [-] button to adjust the rain calibration factor from 0.75 to 1.25,
where:
Calibrated Rain = Calibration factor x Measured Rain
NOTE: The rain collector is calibrated at the factory based on the funnel diameter. The
bucket tips every 0.01" of rain (referred to as resolution). The accumulated rainfall can be
compared to a sight glass rain gauge with an aperture of at least 4".
Debris and insects can collect inside the tipping mechanism (they make a good spiders
nest). Carefully remove the funnel and inspect the tipping mechanism for debris prior
to calibration.
Alarm Mode
The unit includes time alarm, temperature alarm and humidity alarm features for indoor
and Channel 1, dew point and wind chill alarm for Channel 1, wind speed and rainfall (1h)
alarm. When an alarm condition is exceeded, the alarm icon will flash
(visual) and the
alarm beeper will sound (audible). To silence the beeper, press any key.
Hints on Alarm Settings
Time of day, indoor, channel 1, wind speed, gust and rainfall (1h and 24h) alarms are sup-
ported. Channels 2-8 alarms are not supported.
Setting the Alarms
In alarm mode, press and hold the SET key for three seconds. The alarm parameter will be-
gin flashing. To adjust the alarm parameter, press the [+] or [-] key to increase or decrease
the alarm setting slowly, or press and hold the [+] or [-] key for three seconds to increase
or decrease the alarm setting rapidly.
Press the ALARM key to turn on (the alarm icon will appear ) and off the alarm. To save the
alarm setting and proceed to the next alarm parameter, press (do not hold) the SET key.
After 30 seconds of inactivity, the alarm mode will time out and return to normal mode.
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