Campbell HydroSense II HS2, Руководство по эксплуатации продукта

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HS2 and HS2P
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The water deficit section of the display contains the following information.
• SOIL # (soil profile number) — Range: 1 to 10.
•
RWC — relative water content. Range: 0% to 100% where 0% represents
“dry” (wilting point) and 100% is “wet” (field capacity).
• DEF— water deficit expressed in millimet re s (mm).
8. Data Storage and Retrieval
The HydroSense II includes non-volatile flash memory for storage of data and
configuration settings. Flash memory is preserved when the batteries are
exhausted or changed.
8.1 Storing Data
To store data with the HydroSense II, press the button from the
main
screen
(p. 15)
. If the current location is not within an existing zone, a prompt to
create a new zone will be presented. If a zone already exists, data are attributed
to that zone.
The function stores volumetric water content values. Make a
measurement before pressing the button.
8.2 What is stored?
The flash file system holds the water content data file, the zone table, and the
table of configuration settings. The most important among these is the water
content data file. When the user stores a measurement by pressing , the
most recent measurement of volumetric water content (VWC) is stored with
the measured period, sensor type, current date and time, and latitude and
longitude (if GPS synchronization has been achieved). If the GPS is switched
off or does not have a valid synchronization, system time and date are used
without GPS confirmation of their accuracy. When the GPS is disabled, check
and adjust the system clock before storing data.
The water content data file is configured as ring memory and is large enough to
hold over 1000 values. When the file becomes full, the oldest data are
overwritten and storage continues.
The zone data file is configured as fill-and-stop memory. It holds a list of zones
that have been created. Zones are created whenever a datum is stored in a new
location. Each zone record contains the cent
re
position (latitude and longitude),
radius in met re s, and the zone name. The zone file is large enough to hold over
NOTE