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. Micro-
Soft 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
indicated by the data line “Logger Started.” If a GPS sig-
nal 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.