46
10.5
THE LOG RECORDS
DATA AS SENT FROM THE FIRETRON 1000
Each log record is 107 bytes long. There are 21 fields. Each field is 6 bytes long except unit number
is 2 bytes, the wet/dry and Oxygen normalization flags, the unit number and fuel type which are each
one byte long. Values are sent right-justified within the fields and are padded with spaces. Data is
sent as ASCII. The CAPTURE program converts the wet/dry analysis flag to the text 'WET' or 'DRY'
and the Oxygen normalization flag to 'ON' or 'OFF' for the dBASE III type output file.
The following table gives an example of the data as sent from the Firetron 1000, including a descrip-
tion of the field.
NOTE: The gas readings are NOT adjusted for wet/dry analysis or O
2
normalization. The state of
these options at the time that each log record is made is included in the database. This allows for
these calculations to be made by the spreadsheet.
Sample Data
Field Description
071091
[DATE: yy/mm/dd]
151559
[TIME: hh/mm/ss]
23
[Ambient Probe Temperature °C]
227
[Probe Temperature °C]
1150
[CO ppm]
1.52
[O
2
%]
91
[NO ppm] FT1300-1 Only
14.46
[CO
2
%]
168
[NO
x
ppm] FT1300-1 Only
83.8
[Fuel Efficiency %]
10.7
[Excess Air %]
0.0
[% Water]
0.0
[% O
2
]
1
[Wet/dry flag 1 - dry 0 - wet]
0
[O
2
normalization flag 1 - ON 0 - OFF]
7
[Unit No.]
2
[Fuel type]
