Campbell Scientific AP200 CO2/H2O Atmospheric Profile System - Manual (Page 84)

Appendix D. Output Tables
TABLE D-1. Variables of the IntAvg Table
Name Units Statistic
When Used in
Calculation
When Included in
Table
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
CalAvg
The CalAvg table contains data from the automated zero/span sequences.
Records are written to this table when the calibration (zero/span) sequence is
run (as determined by CAL_INTERVAL). If MEASURE_TANKS = False,
the AP200 will not write to this table.
Each calibration sequence will put multiple records in the CalAvg table. If
AUTO_ZEROSPAN = False, each sequence will place two records in the
table:
• measured values for the CO2 span tank and
• zero tank
These are distinguished by valve_number (9 = Zero Tank and 10 = CO
2
Span
Tank).
If AUTO_ZEROSPAN = True, each sequence will place five records in the
table: CO
2
span tank, zero tank (before and after doing the zero), and CO
2
span
tank (before and after doing the CO
2
span).
Space is allocated on the card for 24,000 records (100 days at five records per
30 min). The CPU has storage allocated for 240 records (1 day). The list of
values saved is similar to the list for the IntAvg table. Additionally, the
CalAvg table includes the valve_number and standard deviations of several
values.
TABLE D-2. Variables of the CalAvg 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
D-4