Hach BODTrak, Instrument Manual, Page: 19 / 63

8
2.2 Key Functions
The BODTrak control panel (see Figure 2) includes the channel
selector, located centrally on the panel; the display screen, to the
right of the channel selector; and the control keys, located below
the display screen.
Channel Selection Keys
Data for any of the six bottles can be displayed by pressing the
corresponding channel selector key. The channel keys are
numbered one through six and are located in the center of the
instrument control panel.
Scrolling Keys
The display shows a graph of BOD values on the vertical axis and
time in days on the horizontal axis. During operation the display
shows the test start date, the run status, and the channel number.
Pressing the < (left) and > (right) scrolling keys (the centrally
located control keys) scrolls through the stored data for the
selected channel. The cursor moves along the BOD curve to show
the approximate coordinates of the current data point. The
Figure 2 BODTrak Control Panel
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