9-6
Data Transmission Records. The data report format from "2700 to HOST" is transmitted as
shown in the example below. Information includes:
»
time
»
date
»
temperature (sample chamber)
»
node address (re: multidrop mode; instrument identification)
»
ID (sample identification number)
»
chemistry (assigned to probe)
»
value (sample or calibration reading)
»
unit of concentration (nA current for calibrations)
»
error codes
Notes:
A "-1" in the ID column specifies calibration report.
A "-2" in the ID column specifies monitor report.
A "-3" in the ID column specifies parameter information request.
A back-slash "\" in the column preceding the carriage return <CR> indicates that more
information from that reading continues on the next line.
If two lines of information are combined, the first is black probe data, the second is white probe
data. In single channel units, this will not be a concern.
In Figure 9.4, several examples show how information for a dual channel 2700 SELECT may
appear when transmitted. Again, the ruler line is for reference only and does not appear on the
record.
The first example shows a multidrop 2700 report with the assigned address of “123”.
The second example shows a non-multidrop 2700 report. Note that the only difference between
this and the first example is the node address field.
The third example shows a calibration report. The sample ID field of a cal report is always “-1”.
The fourth example shows a monitor report. Similar to the cal report, the sample ID field in this
report is always “-2”.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
