Sentinel V SC and RT Operation Manual
September
2017
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Page 117
Figure 60.
Compass Calibration Stand
4. Place the ADCP on the calibration fixture in the same orientation as it will be deployed (i.e. up or
down). Each of the 12 steps has two parts: rotate the fixture so that ADCP transducer head is
pointed toward the correct angle and then roll the ADCP on the fixture so that the correct beams
are raised.
5. Set up the calibration fixture tilt angle to
40 degrees
by extending the support arm.
Step 1: You may rotate the fixture in any direction. This direction will be your “0 degrees”. Roll
the instrument in the fixture so that Beam 1 is up. Click the Take sample button.
Step 2: Rotate the fixture to 90
°
, roll instrument so that Beam 2 is up. Click Take sample.
Step 3: Rotate the fixture to 180
°
, roll instrument so that Beam 1 is up. Click Take sample.
Step 4: Rotate the fixture to 270
°
, roll instrument so that Beam 2 is up. Click Take sample.
6. Set up the calibration fixture tilt angle to
65 degrees
by retracting the support arm.
Step 5: Rotate the fixture to 110
°
, and then roll instrument ⅛ turn so that Beam 2 and Beam 4
are up. Click Take sample.
Step 6: Leave the fixture to 110
°
, and then roll instrument ¼ turn so that Beam 1 and Beam 4 are
up. Click Take sample.
Step 7: Rotate the fixture to 160
°
, and then roll instrument ¼ turn so that Beam 1 and Beam 3
are up. Click Take sample.
Step 8: Leave the fixture to 160
°
, and then roll instrument ¼ turn so that Beam 2 and Beam 3 are
up. Click Take sample.
Step 9: Rotate the fixture to 290
°
, and then roll instrument ¼ turn so that Beam 2 and Beam 4
are up. Click Take sample.
Step 10: Leave the fixture to 290
°
, and then roll instrument ¼ turn so that Beam 1 and Beam 4
are up. Click Take sample.
Step 11: Rotate the fixture to 340
°
, and then roll instrument ¼ turn so that Beam 1 and Beam 3
are up. Click Take sample.
Step 12: Leave the fixture to 340
°
, roll instrument ¼ turn so that Beam 2 and Beam 3 are up.
Click Take sample.