YSI 6 series User Manual page 76

Sondes
Select 1 – Start sampling option to start discrete sampling. After the initial sampling time interval has
passed (4 seconds in the screen above), sequential lines of data will appear on the screen.
=============================================================================
Date Time
mm/dd/yy hh:mm:ss
------------------------------------------------------------------------------
*** 1-LOG last sample
05/05/97 10:04:40 21.57
05/05/97 10:04:44 21.57
*** LOG is ON,
05/05/97 10:04:48 21.58
05/05/97 10:04:52 21.58
05/05/97 10:04:56 21.58
05/05/97 10:05:00 21.58
*** 1-LOG last sample
05/05/97 10:05:04 21.58
Sample logged.
05/05/97 10:05:08 21.58
The following prompt will appear just below the screen header:
1-LOG last sample, 2-LOG ON/OFF, 3-Clean optics
 By entering 1–LOG last sample, A single line of data can be logged to sonde memory and the
following message will be displayed: Sample logged.
By entering 2-LOG ON/OFF, a set of data can be logged to memory and the following message will

be displayed: LOG is ON, hit 2 to turn it OFF, 3-Clean optics. Press 2 again to terminate logging.
 By entering 3-Clean optics, if your unit has an optical probe, the wiper will clean the optical surface.
The 3-Clean optics portion of the prompt will only appear if an optical probe was installed and
enabled.
Select Esc or press 0 and return to the Discrete Sampling menu.
From the Discrete Sampling menu, select 2-Sample Interval to type a number that represents the number
of seconds between samples. The maximum sample interval is 32767 seconds (9+ hours). The factory
default sample interval is 4 seconds and works best for most discrete sampling applications. The shortest
possible sample interval for obtaining new DO readings is 4 seconds. If a smaller interval is selected, then
the DO readings remain constant for the number of samples necessary to fill 4 seconds.
NOTE: If your have used your sonde with a 650 MDS data logger, the Sample Interval automatically be
changed to 0.5 seconds.
YSI Incorporated
Temp SpCond
C mS/cm
2-LOG ON/OFF,
0.009
0.009
hit 2 to turn it OFF,
0.009
0.009
0.009
0.009
2-LOG ON/OFF ,
0.009
0.009
Environmental Monitoring Systems Operations Manual
Sal DO Depth
ppt mg/L feet
3-Clean optics***
0.00 7.73 -0.293
0.00 8.41 -0.300
3-Clean optics***
0.00 8.41 -0.302
0.00 8.40 -0.302
0.00 8.41 -0.303
0.00 8.42 -0.303
3-Clean optics***
0.00 8.44 -0.304
0.00 8.45 -0.305
Section 2
pH Turbid Battery
NTU volts
7.55 0.3
7.55 0.3
7.55 0.3
7.55 0.3
7.55 0.3
7.55 0.3
7.55 0.3
7.55 0.3
10.2
10.3
10.3
10.3
10.2
10.3
10.3
10.3
2-70