Campbell-scientific CPEC200 Closed-Path Eddy-Covariance System Manual de usuario descargar pdf (Pagina 84)

Appendix C. Output Variables

If there is some error condition that prevents the zero/span sequence from

starting, one of the following messages will be displayed:

• ERROR: Cannot run Zero/Span sequence - CHECK_ZERO is False

• ERROR: Cannot run Zero/Span sequence - Check valve temperature

• ERROR: Cannot run Zero/Span - Check scrub module temperature

If the CPEC200 begins the startup process for a zero/span sequence, and then

detects an error, one of the following messages will be displayed:

• Zero/Span startup manually aborted by turning pump on

• ERROR: Zero/Span startup aborted - Check scrub module

temperature

• ERROR: Zero/Span startup aborted - Check valve temperature

If the CPEC200 has already started the zero/span sequence and then detects

some error condition that causes the zero/span sequence to abort, one of the

following messages will be displayed:

• Zero/Span sequence manually aborted by turning pump on

• ERROR: Zero/Span sequence aborted - Check scrub module

temperature

• ERROR: Zero/Span sequence aborted - Check valve temperature

If the CPEC200 attempts to set the IRGA zero or span as part of a zero/span

sequence and there is a problem identified (diag_cpec is nonzero), the

CPEC200 will skip the zero or span setting step, continue the rest of the

sequence, and display one of the following messages. If the user attempts to

set the zero or span manually this error or check is bypassed, and the zero or

span will be set regardless of the status of diag_cpec.

• ERROR: Automatic Zero aborted - Check diagnostics

• ERROR: Automatic CO2 Span aborted - Check diagnostics

Some of the messages relate to the use of the valve module in manual mode:

• Valve operation not allowed when pump is on

• EC mode restarted by turning pump on

• ERROR: Valves disabled - Check valve temperature

• ERROR: Valves disabled - Check press_offset

• ERROR: Valves disabled - Check scrub module temperature

Some of the messages relate to the configuration of the EC155:

• ERROR: Powering OFF EC155 gas head

• Powering ON EC155 gas head

• Configuring the EC100

• Setting the zero

• Setting the CO2 span

• Setting the H2O span

The values stored in table message_log are shown in TABLE C-4. The value

of the compile switches depends on the constants as described in Section 5.4.2,

C-8

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 111 112

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Campbell-scientific CPEC200 Closed-Path Eddy-Covariance System Manual de usuario Pagina 84

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