YSI 6 series User Manual page 159

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 3.5.2 and 3.5.3 below provide details and real-life examples of logging data to sonde memory and to
650 memory, respectively, using the 650 as the interface.
3.5.2 LOGGING DATA TO SONDE MEMORY
3.5.2.1 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.
3.5.2.2 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.
YSI Environmental Monitoring Systems Operations Manual
Section 3
3-29