Campbell Scientific CSAT3 3-D Sonic Anemometer User Manual

Page 31

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CSAT3 Three Dimensional Sonic Anemometer

Command/Option 90, 91, 98, or 99 must not be used to

collect data from a CSAT3 running a cold shifted

calibration, see Section 11.2.1.

Option 1, 2, 3, 5, 6, 10, 12, 15, 20, 30, and 60: “Set Execution Parameter”

tells the CSAT3 which measurement parameters to use and what frequency to

expect the measurement trigger from the datalogger. The datalogger Execution

Interval and the appropriate CSAT3 Execution Parameter is summarized in

TABLE 10-3 and TABLE 10-4.

Option 61 and 62: “Set Execution Parameter” tells the CSAT3 to oversample

(Section 8.1.2) the wind measurements at a rate of 60 Hz and expect a trigger

at a rate of 10 Hz (option 61) or 20 Hz (option 62) from a CR3000, CR1000,

CR5000, CR800/850, CR9000(X), CR23X or 21X datalogger.

Option 51 and 52: “Set Execution Parameter” tells the CSAT3 to oversample

(Section 8.1.2) the wind measurements at a rate of 48 Hz and expect a trigger

at a rate of 8 Hz (option 51) or 16 Hz (option 52) from a CR10(X) datalogger.

TABLE 10-3. CR3000, CR1000, CR5000, CR800/850, CR9000(X), CR23X and 21X Execution Interval

and CSAT3 Execution Parameter

Datalogger Execution Interval

(seconds)

Datalogger Execution Frequency

(Hz)

CSAT3 Execution Parameter

0.05

20

20

0.0625

16

15

0.075

13.333

12

0.0875 to 0.1

11.429 to 10

10

0.1125 to 0.1625

8.889 to 6.154

6

0.175 to 0.2

5.714 to 5

5

0.2125 to 0.325

4.706 to 3.077

3

0.3375 to 0.5

2.963 to 2

2

0.5125 to 1

1.951 to 1

1

TABLE 10-4. CR10(X) Execution Interval and CSAT3 Execution Parameter

Datalogger Execution Interval

(seconds)

Datalogger Execution Frequency (Hz)

CSAT3 Execution Parameter

0.0625

16

15

0.078125

12.8

12

0.09375

10.667

10

0.109375 to 0.15625

9.143 to 6.4

6

0.171875 to 0.1875

5.818 to 5.333

5

0.203125 to 0.328125

4.923 to 3.047

3

0.34375 to 0.5

2.909 to 2

2

0.515625 to 1

1.939 to 1

1

CAUTION

21

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