Campbell CPEC300, Руководство по эксплуатации продукта

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Appendix H. Output Variables
H-10
TABLE H-4. Values stored in table message_log
Compile
Switch
Variable
Name Units Description
V valve_number Valve number (0 to 6);
determines which zero/span
valve is selected
V press_offset kPa Sample cell pressure measured
with no flow; used to infer valve
flow
V valveTctl_ON Boolean flag: True if valve
module temperature control is
enabled
V valve_flow LPM Zero/span flow
V valve_tmpr ºC Temperature of the valve
module
V, S scrub_tmpr ºC Temperature of the scrub
module
V, S scrub_press kPa Pressure measured at the scrub
pump outlet
buff_depth Number of scans in the pipeline
buffer that have not yet been
processed (a copy of BuffDepth
from the Status table)
config_history
The user may change the configuration of the CPEC300 program at any time,
as discussed in Section 6 , Configure the EasyFlux DL Program
(p. 34)
. All the
configuration variables and compile switches are written to the config_history
table at startup, when a configuration variable is changed, and once a day at 15
minutes past midnight. This provides a historical record to be used as a
troubleshooting aid.
The values stored in table config_history are shown in TABLE H-5 .
TABLE H-5. Values stored in table config_history
Variable Name Units Description
TIMESTAMP TS Date and time the record was written
RECORD RN record number
BATT_LOWLIMIT V CPEC300 will power down if supply voltage falls below this limit
BATT_DEADBAND V CPEC300 will power up if supply voltage rises this much above
the lower limit
SONIC_AZIMUTH degrees Angle between true north and the direction the CSAT3A is
pointing
BANDWIDTH Hz EC100 digital filter bandwidth
AMB_PRESS_NOMINAL kPa Nominal ambient pressure for CPEC300 elevation
PUMP_SETPT LPM Flow setpoint for sample pump speed control
CAL_INTERVAL min Time between automatic zero/span sequences
CAL_TIMEOFFSET min Time offset for starting automatic zero/span sequences
ZERO_TIME s Time to flow zero gas
SPAN_TIME s Time to flow CO
2
span gas
CAL_FLOW_SETPT LPM Flow setpoint for zero/span