Sequoia LISST-SL, Руководство по эксплуатации

Страница: 27 / 56

LISST-SL V2.1
User’s Guide
23
Place the TCB on the platform in a safe secure
place.
Connect power cable from TCB to the slip ring
on the B-reel.
Connect the LISST-SL underwater connector
to the termination of the B-reel.
Remove any caps on the pitot tube.
Lower the instrument in water. Hold just below
the surface.
Tie off the platform to the bridge rail or
otherwise secure the system to prevent
accidents.
Turn on power at the TCB.
Press the SETUP button, set clock and units.
Return to MAIN MENU.
Press CALIBRATE button.
Follow directions. Check that Steps 1-3 are
done, and ‘check’ them by touching the screen.
Press the COLLECT BACKGROUND button.
Press UPDATE. When data looks favorable
compared to factory values, press SAVE.
When finished, press CANCEL button to go
back to MAIN MENU.
Test your background: with the instrument still
in river with the filter etc. connected, use the
MEASURE button to view Concentration. If it is
in the range of approximately 1 mg/l, the
background is good.
Cancel, and stop the instrument. Pull up the
LISST-SL to remove filter etc.
3. Collecting Data Now that you have a good background, you are ready.
Follow the following steps:
Make sure to turn off power at the TCB.
Pull up the LISST-SL and remove the tubing
and filter.
Lower the instrument in the river.
Turn on power on TCB, then press MEASURE.
To interrupt data collection, press the STOP button at
bottom right of the ACQUIRING DATA screen. At this
point, a set of files for the last data run will be closed. You
may move to a different location on the cross-section of
the river and collect more data by pressing the
MEASURE button on the MAIN MENU again.
If the Battery Low alarm sounds, quickly finish your work
and prepare to shut down.
When done for the day, first turn off power at the TCB,
then pull up the instrument, and
promptly put a pinched
tube on the pitot tube .