44
12.6 Data Format
Data is returned to the RS232 Port by the
smart
CHEM
-D
in the following format.
Please note that a “
•
” shown anywhere in this section denotes one space.
dd/mm/yyyy•hh:mm:ss•LLLL•DDDDDDuuu•CCCCCCCuuu•TTTTTuuu
where….
dd/mm/yyyy
is the date, month and year data.
hh:mm:ss
is the hours, minutes and seconds data.
LLLL
is the Log Number, 4 characters, right justified. The
smart
CHEM
-D
sends a Zero
for instant readings (see section 12.2).
DDDDDD
is the Dissolved Oxygen data, 6 characters, right justified.
uuu
is the Dissolved Oxygen units description, which can be any of the following…
ppm
for parts per Million readout without Salinity correction.
Note the lower case “
m
”.
ppM
for parts per Million readout with Salinity correction
applied. Note the upper case “
M
”.
%S•
for % Saturation readout.
%G•
for % Gaseous readout.
CCCCCCC
is the Conductivity or TDS data, 7 characters, right justified.
uuu
is the Conductivity/TDS units description, which can be any of the following…
uS•
for µS/cm Conductivity readout.
mS•
for mS/cm Conductivity readout.
ppM
for parts per Million TDS readout.
ppK
for parts per Thousand TDS readout.
TTTTT
is Temperature data, 5 characters, right justified.
uuu
is the Temperature unit description, which is the following…
oC•
for real Temperature data.
When requested by a PC with the ?D or ?R commands (section 12.5), the data is terminated with a
carriage return.
When the data is sent by the
smart
CHEM
-D
using the Print function (section 11.5) or the Instant
Send function (section 12.2), the data ends with a carriage return and a line feed.
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