Campbell-scientific AP200 CO2/H2O Atmospheric Profile System Manual de usuario Pagina 86

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Appendix D. Output Tables
TABLE D-2. Variables of the CalAvg Table
Name Units Statistic
When Used in
Calculation
When Included in
Table
T_air_Avg(1) °C Avg all N_AirTemps > 0
T_air_Avg(2) °C Avg all N_AirTemps > 1
T_air_Avg(3) °C Avg all N_AirTemps > 2
T_air_Avg(4) °C Avg all N_AirTemps > 3
T_air_Avg(5) °C Avg all N_AirTemps > 4
T_air_Avg(6) °C Avg all N_AirTemps > 5
T_air_Avg(7) °C Avg all N_AirTemps > 6
T_air_Avg(8) °C Avg all N_AirTemps > 7
SiteAvg
The SiteAvg table saves the same data as the CalAvg table. A record is
written to the SiteAvg table when the automatic valve sequence switches to a
new valve. Records are also written to SiteAvg any time records are written to
the CalAvg table. This includes measurement of the zero tank before and after
doing the zero, for example.
The SiteAvg table is useful if a finer time resolution is desired; either to see
how CO
2
and H
2
O concentrations changed during a 30-minute averaging
interval or to troubleshoot the system if a problem is detected. Space is
allocated on the card for 576,000 records (100 days at one record every 15 s).
The CPU has storage allocated for 576 records (2.4 hr at one record every 15 s).
TABLE D-3. Variables of the SiteAvg Table
Name Units Statistic
When used in
calculation
When included in
table
TIMESTAMP TS always
RECORD RN always
valve_number Smp last sample always
diag_AP200_Avg Avg end_omit always
NumSamples Tot end_omit always
CO2_Avg ppm Avg end_omit always
H2O_Avg ppt Avg end_omit always
cell_tmpr_Avg °C Avg end_omit always
cell_press_Avg kPa Avg end_omit always
Td_cell_Avg °C Avg end_omit always
Td_ambient_Avg °C Avg end_omit always
D-6
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