650 MDS
Section 3
YSI, Incorporated Drinking Water Monitoring Systems Operations Manual
3-26
3.4.3.4 Calibrating sonde sensors
Use the
650 Sonde menu
selection to access the sonde
Calibrate
menu. Once the menu has been
activated, use the arrow keys to highlight a sensor for calibration and follow the instructions on the screen.
Use the keypad to enter numeric values associated with the calibration standards and press
Enter
to
confirm your input. View the data from each calibration standard in real-time and then highlight the
Calibrate
selection in the upper frame. When the output is stable, press
Enter
to confirm the calibration
point. Then highlight
Continue
and press
Enter
to either move to the next calibration point or to finalize
the calibration. See the example in Section 3.4.2 above for a typical calibration procedure.
NOTE:
To return a sensor calibration setup to its factory default setting, access any calibration routine for
that particular sensor which asks for numeric input. However, instead of entering numbers, hold the
Enter
key down and press the
Escape
key. Highlight “yes” and press
Enter.
This protocol is the equivalent of
entering the command “uncal” from a computer keyboard.
3.4.3.5 Changing the sonde Sensor setup
Use the
650 Sonde menu
selection to access the sonde
Sensor
menu. Once the menu has been activated,
use the arrow keys to highlight a sensor for activation/deactivation and press
Enter
to confirm your choice.
3.4.3.6 Changing the sonde Report setup
Use the
650 Sonde menu
selection to access the sonde
Report
menu. Once the menu has been activated,
use the arrow keys to highlight a sensor for activation/deactivation and press
Enter
to confirm your choice.
See the example in Section 3.4.2 above.
3.4.3.7 Viewing data stored in the sonde
Utilize the
650 Sonde menu
selection to access the
File
menu of the sonde. Highlight the “View file”
selection and press
Enter
. Select the file that you want to view. Choose
Proceed
and press
Enter
to view
the entire file or select the portion of the data that you want to view and then select
Proceed
and press
Enter
to confirm your selection. After data has appeared on the screen, use the arrow keys to select the
particular sensor data that you wish to view.
IMPORTANT
: The sonde
Quick view file
, which is designed to show the last page of data of the last
logged file when the sonde is interfaced to a PC is slightly different for the sonde/650 interface. Making
this selection will indeed show data from the last logged file, but all data (not just the last page) will be
displayed. It is still possible, however, to quickly view the last few logged data points which may be
important in checking a sonde’s current performance in the field. To rapidly move to the end of the file (in
either
View file
or
Quick view file
), press and HOLD the down arrow to accelerate the transition to the
final data points. Then use the arrow keys to view the data of interest.
3.4.3.8 Configuring and setting the sonde clock
Utilize the
650 Sonde menu
selection to access the
System
menu of the sonde. Highlight the
Date &
Time
selection and press
Enter
. Use the arrow keys to highlight the preferred date format and press
Enter
to confirm your selection. Activate/deactivate the
4-digit year
selection, as desired, using the
Enter
key to toggle between choices. Finally, set the date and time by highlighting the entries and inputting new
values from the keypad.
3.4.3.9 Setting the sonde Autosleep configuration
As explained in Section 2 of the 6-series manual, the setup of the
Autosleep RS-232
function of the sonde
should be governed by the following rules:
•
Unattended sample studies/Remote deployments – Autosleep Active
•
Discrete sample studies with user present – Autosleep Inactive
The rules are particularly important with regard to the method of dissolved oxygen calibration – automatic
at the Unattended sample interval if Autosleep is Active; manually controlled by the user if Autosleep is
inactive. See Section 2 of the 6-series manual for additional information on the Autosleep function.
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