Campbell Scientific AP200 CO2/H2O Atmospheric Profile System - Manual (Page 78)

Appendix C. Public Variables
TABLE C-1. Public Variables
Usage Variable Name Units Description
INFO seq_ACTIVE Boolean flag: True if the valve sequence is active
INFO/USER valve_number valve number (1 to 11); determines which inlet is selected
INFO sequence_index
index for valve switching sequence; cycles from 1 to
LEVELS_USED
INFO smpl_counter number of scans since last valve switch
INFO end_omit
Boolean flag: True when equilibration time after valve
switch is satisfied
DIAG panel_tmpr °C temperature of the datalogger wiring panel
DIAG batt_volt V
supply voltage; measured inside datalogger after diode
voltage drop
DIAG batt_volt_LOW
Boolean flag: True if batt_volt is too low (controls power
shutdown)
DIAG valve_tmpr °C temperature of the valve manifold
DIAG valve_tmpr_OK
Boolean flag: True if the valve module is within operating
limits
DIAG valve_heat_ON Boolean flag: True if the valve heater is on
DIAG valve_fan_ON Boolean flag: True if the valve fan is on
USER pump_ON set = to True to enable the sample pump
DIAG pump_press kPa pressure measured at the pump inlet
DIAG pump_control
pump speed control variable; can be from 0 (off) to 1 (full
speed)
DIAG pump_speed Hz pump speed; measured by a tachometer on the pump
DIAG pump_tmpr °C temperature of the pump
DIAG pump_tmpr_OK
Boolean flag: True if the pump temperature is within its
operating range
DIAG pump_heat_ON Boolean flag: True if the pump heater is on
DIAG pump_fan_ON Boolean flag: True if the pump fan is on
INFO intake_heat_ON Boolean flag: True if the intake heaters are on
TAIR T_air(1) °C
air temperature profile (optional, defined only if
N_AirTemps > 0)
TAIR T_air(2) °C
air temperature profile (optional, defined only if
N_AirTemps > 1)
TAIR T_air(3) °C
air temperature profile (optional, defined only if
N_AirTemps > 2)
TAIR T_air(4) °C
air temperature profile (optional, defined only if
N_AirTemps > 3)
C-2