Campbell IRGASON Manuel télécharger pdf (Page 31)

IRGASON Integrated CO

O Open-Path Gas Analyzer and 3D Sonic Anemometer

To use USB or RS-485 output, connect a USB or RS-485 cable from the

EC100 to the receiving device (see Section 6.3, Wiring and Connections), and

configure the settings (see Section 7, Settings).

The Unprompted Output setting must be set to USB or RS-485.

If RS-485 is selected, the RS485 Baud Rate must be set.

The Unprompted Output Rate must be set to the desired output

rate.

All output data are formatted as comma delimited ASCII. Each record

terminates with a carriage return and line feed. Table 8-1 lists the elements in

each output array, and Figure 8-1 shows an example USB data feed in terminal

mode.

TABLE 8-1. USB and RS-485 Output Elements

Data Element Description Units/comments

1 U

m/s

2 U

m/s

3 U

m/s

4 Sonic temperature °C

5 Sonic diagnostic flag

6 CO

density mg/m

7 H

O density g/m

8 Gas diagnostic flag

9 Air temperature °C

10 Air pressure kPa

11 CO

signal strength Nominally 0.0 to 1.0

12 H

O signal strength Nominally 0.0 to 1.0

13 Not used

14 Counter Arbitrary

15 Signature Arbitrary in hexadecimal

FIGURE 8-1. An example of USB data output in terminal mode

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 58 59

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Campbell IRGASON Manuel Page 31