Appendix C. EasyFlux
®
DL CR6KH20
C-19
The CSAT3B offers a user-enabled correction for transducer wind
shadowing. The correction is disabled as a default state but may
be enabled by connecting the CSAT3B to a computer using the
CSAT3B USB Data Cable, launching the Device Configuration
Utility, and changing the setting for correction. For more
information on the correction, see the CSAT3B manual.
C.4.3 Data Retrieval
The program stores a limited amount of data to the internal CPU of the data
logger, so a microSD Flash card should be used with the CR6. TABLE
shows the number of days of data a 2 GB, 8 GB, and 16 GB card will typically
hold before the memory is full and data starts to be overwritten. In cases where
real-time remote monitoring is desired, various telemetry options (for example,
cellular, radio, etc.) are available to transmit the processed flux data. Certain
conditions may also allow remote transmittal of time series data. Contact
Campbell Scientific for more details.
TABLE C-15. microSD Flash Card Fill Times with 10Hz Measurement Rate
microSD Flash
card size
Fill time with required
sensors only
Fill time with required sensors, FW,
CS106, and biomet/energy balance
sensors)
1/
2 GB
~41 days
~35 days
8 GB
~170 days
~141 days
16 GB
~339 days
~281 days
1/
Biomet and energy balance sensors used for this fill time estimate include the following: NR-LITE2, CS301,
CS310, SI-111, TE525MM, TCAV (qty 3), CS616 (qty 3), and HFP01 (qty 3)
microSD Flash cards from various manufacturers may have
slightly different memory sizes on their 2 GB, 8 GB, and 16 GB
cards, respectively. Also, as a card ages some of its sectors may
become unusable, decreasing the available memory. Fill time
estimates given in TABLE
cards.
Campbell Scientific recommends and supports only the use
of microSD cards obtained from Campbell Scientific. These
cards are industrial grade and have passed Campbell
Scientific hardware testing. Use of consumer grade cards
substantially increases the risk of data loss.
C.4.4 Output Tables
Besides the standard
Public
,
Status
, and
TableInfo
tables that every data
logger reports, the program has six output tables. TABLE
names of these output tables, along with a short description, the frequency at
which a record is written to the table, and the amount of memory allocated
from the CPU and microSD card for each table.
NOTE
NOTE
CAUTION