HD52.3D…
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V2.2
Command
Instrument reply
Description
As to the quantities with configurable measuring
unit (wind speed, temperature, barometric pres-
sure and rainfall), the measurement value is ex-
pressed in the unit set in the instrument.
<DP> measurement has the same format as tem-
perature.
If a quantity measurement is in error condition, a
negative value consisting in a series of 9 is sent.
The fields corresponding to quantities not meas-
ured by that particular model are always present:
a negative value consisting in a series of 9 is sent.
The Wind Gust measurement is available starting
from firmware version 2.20.
The Wind Gust measurement is determined by
continuously calculating the wind speed averages
in a time interval equal to 3 seconds, and detect-
ing the maximum value of the calculated averages
over the time elapsed between the current reading
command and the previous reading command (the
Wind Gust measurement is reset after each read-
ing command).
The total amount of rainfall is the amount meas-
ured from when the instrument is powered. The
partial amount of rainfall is the amount measured
from the last reading command.
For additional information regarding the protocol, visit the site "www. sdi-12.org".
Summary of Contents for Delta OHM HD52.3D Series
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