Campbell-scientific CPEC200 Closed-Path Eddy-Covariance System Manuel d'utilisateur télécharger pdf (Page 42)

CPEC200 Closed-Path Eddy-Covariance System

CHECK_SPAN2:

Check the gas analyzer span against CO

gas number 2 (requires the 6-valve

module).

CHECK_SPAN3:

Check the gas analyzer span against CO

gas number 3 (requires the 6-valve

module).

CHECK_SPAN4:

Check the gas analyzer span against CO

gas number 4 (requires the 6-valve

module).

5.4.2 Compile Switches

The CPEC200 program defines four constants that are used as compile

switches. The function of these constants are defined below.

VALVE_MODULE:

Set VALVE_MODULE = True to enable the use of the optional valve

module. Set it to False if no valve module is installed, or if the valve module is

not being used. Disabling the valve module by setting it to FALSE will reduce

clutter in the output tables and save processing time. No distinction is made

between the 3-valve module or the 6-valve module. Either one is enabled by

setting VALVE_MODULE = True.

SCRUB_MODULE:

Set SCRUB_MODULE = True to enable the use of the scrub module

accessory. Set SCRUB_MODULE = False if no scrub module is installed.

Setting SCRUB_MODULE = True when using a cylinder of

compressed zero air instead of a scrub module may cause the

contents of the zero air cylinder to be quickly exhausted.

Use of the scrub module requires the use of the valve module. If

VALVE_MODULE = False, then SCRUB_MODULE will be

ignored.

SaveAll_diagnostics:

If constant SaveAll_diagnostics = False (the default), the ts_data output table

will contain only those values required for normal operation. If

SaveAll_diagnostics = True, the CPEC200 will save some additional

diagnostic values in output table ts_data.

Leaf_Wetness_Sensor:

If an optional leaf wetness sensor is installed, set Leaf_Wetness_Sensor =

True to reduce power to the EC155 intake heater during dry weather. If

Leaf_Wetness_Sensor = False, the EC155 intake heater will be set to full

power (0.7 W) all the time.

5.5 Verify Proper Operation

Verify proper operation of the CPEC200 system by checking the following

public variables.

NOTE

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