Campbell-scientific CPEC200 Closed-Path Eddy-Covariance System Uživatelský manuál stáhnout pdf (Strana 83)

Appendix C. Output Variables

TABLE C-3. Values stored in table zero_ span

Compile

Switch

Variable Name

Units

Description

panel_tmpr_Avg

ºC

Average datalogger wiring panel temperature

BattVolt_Avg

Average supply voltage

BattVoltOK_Avg

Fraction of time the system was not shut down because the

supply temperature had dropped below the limit

slow_samples

Number of samples included in the average for values

measured in the slow scan

ValveTmprOK_Avg

Fraction of time the valve module temperature was within its

operating range

valve_tmpr_Avg

ºC

Average valve module temperature

valve_heat_Avg

Fraction of time the valve module heater was on

valve_fan_Avg

Fraction of time the valve module fan was on

V, S

scrub_press_Avg

kPa

Average pressure at the scrub pump outlet

V, S

ScrubTmprOK_Avg

Fraction of time the scrub module temperature was within its

operating range

V, S

scrub_tmpr_Avg

ºC

Average scrub module temperature

V, S

scrub_heat_Avg

Fraction of time the scrub module heater was on

V, S

scrub_fan_Avg

Fraction of time the scrub module fan was on

message_log

The message_log table stores a record that includes a text message as well as

several variables that describe the state of the system when the record is

written. It notifies the user of a significant event, such as a change to a

configuration variable or events related to a zero/span sequence.

Public variable latest_note shows the latest message written to the

message_log table. After one minute the text in latest_note is marked as old,

but is still displayed.

Some of the messages relate to the system configuration variables. The first

message, written when the program starts up, will be either:

• Using configuration variables from sys_conf_var.dat

or:

• Using default configuration variables

This is normally followed by:

• System configuration saved

This message is also written any time the configuration is saved: once per day

at 15 minutes past midnight and any time a configuration variable is changed.

Most of the messages are related to the Zero/Span sequence. When the

sequence starts and stops normally, the following messages are displayed.

• Zero/Span sequence started

• Zero/Span sequence completed

C-7

1 2 ... 78 79 80 81 82 83 84 85 86 87 88 ... 111 112

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