12
Data Files
Sample data showing results of data collected with and
without GPS activated. Note: GPS signal not found when
recording data in lines 12 through 14.
The data is stored in comma
-
delimited text files. These
files can be opened with text
-
editing software (e.g. Mi-
croSoft Word) or spreadsheet software (e.g. Excel).
The first two lines of the data file give the logger
’
s name
and serial number. The third line indicates that latitude
and longitude are referenced to the 1984 World Geodetic
Survey datum. The fourth line shows the column head-
ings for the rest of the data file.
Logging sessions are started and completed by turning
the meter on and off. The start of a logging session is in-
dicated by the data line
“
Logger Started.
”
If a GPS signal
was found at the start of a logger session, a time stamp is
included on the
“
Logger Started
”
line.
The data is separated into 6 fields: Latitude and Longi-
tude (blank if a GPS unit was not connected), sample
number, EC value, EC units, and temperature. Possible
measurement units for EC are
μ
S/cm, mS/cm or ppm.
The units of temperature match what has been selected
on the meter.