YSI Incorporated
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650 MDS
•
Decide if you want to log data continuously, and, if so, determine what sample interval between data
points is appropriate for you study. If you will be logging to 650 memory, highlight the
Logging setup
selection from the 650 Main menu, then highlight the
Interval
selection and set the interval as desired. If
you will be logging to sonde memory, select the
650 Sonde menu
and then
Run|Discrete sample
from
the sonde menu. Set the sample interval and then activate the data display by selecting
Start sampling
.
•
Select the memory (sonde or 650) in which you want to store your data by toggling between the logging
windows.
•
Highlight the logging method desired – “Log one sample” for a single logged point or “Start logging” to
store a continuous data stream.
•
Press
Enter
to activate the logging selection.
•
To end the study if a continuous data stream was selected, press
Enter
with the highlight cursor on the
Stop logging
command or press the
Escape
key.
Sections 5.2 and 5.3 below provide details and real-life examples of logging data to sonde memory and to 650
memory, respectively, using the 650 as the interface.
5.2 LOGGING DATA TO SONDE MEMORY
5.2.1 INTRODUCTION
All YSI 6-series sondes sold since September 1999 have memory present on their internal PCBs. In addition,
all 600XLM, 6920, and 6600 sondes have internal memory, regardless of the date of purchase. Interface of
these sondes to a 650 allows the user to easily store data (either a single point or a continuous stream) to the
sonde memory. If a continuous stream of data is desired, the interval between the stored points is controlled
by the
Sample interval
in the sonde’s
Discrete sample
function. The file name under which this data is
stored and the site name associated with the file are also input in the
Discrete sample
function of the sonde
using the 650 keypad as the input method. When logging to sonde memory, be sure to follow the instructions
above with regard to entering the
650 Run
display either directly from the
650 Sonde run
menu or indirectly
from the 650
Sonde
menu
selection to control your sample interval.
The following examples show the setup and implementation of logging to sonde memory using the 650 as the
interface device.
5.2.2 EXAMPLE 1 – SIMPLE SINGLE POINT LOGGING TO SONDE
MEMORY
A user with a 600XL/650 system wants to store data electronically from a single site rather than writing down
the information manually in the field.
To log this data point to the sonde memory, the user highlights the
Sonde run
selection in
the 650 Main
menu
and presses
Enter
to begin data display.
