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13.6 Data Format
Data is returned to the RS232 Port by the
smart
CHEM
-C
in the following format.
Please note that a “
•
” shown anywhere in this section denotes one space.
dd/mm/yyyy•hh:mm:ss•LLLL•CCCCCCCCCCuuuuu•TTTTTuu
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
-C
sends a Zero
for instant readings (see section 13.2).
CCCCCCCCCC
is Conductivity or TDS data. 10 characters, right justified. Scientific notation in a
format which is compatible with most spreadsheet programs is used to keep data
to a reasonable length for all possible values.
uuu
is the Conductivity/TDS units description, which can be any of the following…
uS/cm
for µS/cm Conductivity readout. (All readings obtained in
mS/cm units are converted to µS/cm to preserve the
scaling of the data.)
uS/m
for µS/m Conductivity readout. (All readings obtained in
mS/m units are converted to µS/m to preserve the scaling
of the data.)
dS/m
for dS/cm Conductivity readout.
ppM••
for parts per Million TDS readout. (All readings obtained
in ppK units are converted to ppM to preserve the scaling
of the data.)
_Ohms
for
Ω
.cm Resistivity readout. (All readings obtained in
K
Ω
.cm and M
Ω
.cm units are converted to
Ω
.cm to
preserve the scaling of the data.)
Ratio
for Ratio readout
TTTTT
is Temperature data, 5 characters, right justified.
uu
is the Temperature unit description, which is sent as “
oC
”.
When requested by a PC with the ?D or ?R commands (section 13.5), the data is terminated with a
carriage return.
When the data is sent by the
smart
CHEM
-C
using the Print function (section 12.5) or the Instant
Send function (section 13.2), the data ends with a carriage return and a line feed.