YSI ADV6600 - Manual (Page 39)

Section 3. Installation and Setup
ADV6600
Y S I
Environmental
Page 29
Under most circumstances, the user is advised to make sure that all of the items in the Fields listing
are active, i.e., a check mark appears in all boxes. Outputting all parameters to the PC during real
time studies and to the ADV6600 internal memory during unattended monitoring studies will allow
the full capability of the ADV6600 system to be realized. If the user does not want to view some of
the information in reports and plots, parameter outputs can easily be “masked” using the
ADVantage 6600 software package, but still retained in the data files for use in later data analysis.
Therefore, YSI strongly recommends that all fields be left active for studies where the data is stored
to a PC or internal memory. The selection is present primarily to limit the ADV6600 output for
SDI-12 studies as described in Section 6.3. However, there may be unusual circumstances in non
SDI-12 studies where the user will want to eliminate some of the ADV parameters and this can be
accomplished by clicking on the boxes to remove the check mark.
Note that many of the ADV parameters have subparameters bundled within the same item. For
example, the velocity parameter contains three separate outputs (V
E
, V
N
, and V
U
) which represent
the velocity in the “East”, “North”, and “Up” directions relative to the earth coordinate system (and
are derived using the velocity from the ADV and internal compass). Detailed descriptions of the
parameters listed in the Fields dialog box are provided in the table below.
Sample Number
Sequential numbers (incremented by one unit) starting with “1” which
are incremented by one unit and are displayed and/or logged time a
sample is taken.
Time The date and time stamps which are displayed and/or logged with each
set of data points.
Speed and Direction The speed and direction of the water.
Vel The three components of water velocity (East, North, Up)
Vel Std Dev The Standard Deviation of the water velocity