Campbell-scientific EC150 CO2 and H2O Open-Path Gas Analyzer and EC100 Instrukcja Użytkownika Pobierz pdf (Strona 58)

Appendix A. EC150 Settings

The instruction syntax is:

EC100Configure(Result,SDMAddress,C onfigCmd,DestSource)

Result is a variable that contains a value indicating the success or failure of the

command. A result code of 0 means that the command was successfully

executed. If reading a setting, 0 in the result code means that the value in the

DestSource variable is the value the desired setting has in the EC150. When

writing a setting, if the result code is 0, the value and setting were compatible,

but the value was not changed because it contained the same value that was

sent. A return code of 1 from the set operation means that the value was valid,

different, set and acknowledged. This allows CRBasic code to control whether

or not to save the settings. NAN (not a number) indicates that the setting was

not changed or acknowledged or a signature failure occurred.

SDMAddress defines the address of the EC150 to configure. Valid SDM

addresses are 0 through 14. Address 15 is reserved for the SDMTrigger()

instruction.

ConfigCmd is a variable that indicates whether to get or set a setting. The

options are listed in TABLE A-2.

DestSource is a variable that will contain the value to read when getting a

setting, or that will contain the value to send when writing a setting to the

EC150.

TABLE A-2. ConfigCmd Values for Setting and Retrieving Settings

ConfigCmd Variable

Setting Description (some settings list possible

values for the DestSource variable)

Set Retrieve

0 100

Bandwidth:

• 5 = 5 Hz

• 10 = 10 Hz

• 12 = 12.5 Hz

• 20 = 20 Hz

• 25 = 25 Hz

1 101

Unprompted Output:

• 10 = 10 Hz

• 25 = 25 Hz

• 50 = 50 Hz

2 102

Pressure Sensor:

• 0 = EC100 Basic

• 1 = User-supplied

• 2 = EC100 Enhanced

• 3 = None (use fixed value)

3 103

Differential Pressure:

• 0 = Disable

• 1 = Enable

4 104 Fixed Pressure Value

5 105 Pressure Offset

A-10

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 85 86

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