Servomex SERVOPRO Plasma, Operator'S Manual

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Plasma Gas Analyzer
76 02001001A_9
Pressing F2 allows a purge time to be configured. Press and hold F2 to select a purge time
between 0 and 25000 seconds. This purge allows the system time to reach stability before
performing the calibration.
Note: In the calibration factor calculation menu, a purge time will be initiated according to the
value previously configured when a zero or a span calibration is manually started. After the
purge time, the analyzer will perform the calibration. The purge time is also initiated when
calibration is requested remotely.
4.4 Status Data and Commands through the RS-232 Port
The RS-232 serial communication port (standard 9-pin D connector) is used to connect the
analyzer to a computer, terminal, or Valve Box. The output data is updated twice a second.
The status of the analyzer is reported in the following order:
STATUS, CONCENTRATION, RANGE, ALARM 1 STATUS, ALARM 2 STATUS,
ANALYZER MODE, MODEL NUMBER, SERIAL NUMBER <LF><CR><NULL>
Note that each field is separated by a comma, and the output string must end with
<LF><CR><NULL>. A typical string would look like the following:
ST, 37.90 ppm, RA-LO 0- 100 ppm, AL-1 DISABLED, AL-2 DISABLED, A, GFC7000E,
105001<LF><CR><NULL>
The output string is sent through the RS-232 in analyze, span, and zero modes.
The following table describes each field possible combination. Follow the format for each field
as close as possible.