October 2017
RiverPro and RioPro ADCP Guide
Page 34
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
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Through-ice
– The RiverPro/RioPro is attached to a mounting rod.
The RiverPro/RioPro is connected to a 12V 7AHr gel-cell battery, and it automatically establishes a con-
nection to external devices and begins to acquire a position via its internal GPS. Next, the Hydrologist
powers on the laptop, opens the discharge measurement application WinRiver II or SxS Pro and connects
to the RiverPro/RioPro with a wireless connection for a tethered boat or a wired connection using RS-232
for a manned boat.
Measurement Wizard
The Hydrologist selects to start a new measurement within the WinRiver II or SxS Pro application. Once
the Hydrologist enters all of the background information on the site where the measurement will be per-
formed, the software will then automatically detect whether an ADCP is connected and which ADCP prod-
uct it is.
Run Built-In Tests
The RiverPro/RioPro is commanded to perform a BIT test, and flashes its LED lights to indicate the re-
sults of the test. It simultaneously transmits the results of the BIT test, the status of the internal GPS con-
nection and any ancillary devices connected to it to the host computer.
Compass Calibration
Next, the Hydrologist performs a compass calibration. After ensuring that the system is well away from
sources of magnetic interference, the Hydrologist starts the compass calibration within the application
and then either: slowly rotates the RiverPro/RioPro as suggested by the application (tethered boat/SxS)
or slowly drives the boat in circle (manned boat). During the calibration process, feedback is provided to
the user as to the quality of the collected magnetic field data at each partition of the 360
°
of rotation.
Moving Bed Test
At this point the RiverPro/RioPro should be tested and the compass calibration completed; once those
steps are complete it is ready to start the moving bed test. The RiverPro/RioPro is placed in the water, and
the Hydrologist enters the command to start it pinging within the application.
If the RiverPro/RioPro was left in the hot sun, its temperature can quickly rise to 35⁰ C before
use. When initially placed in the water, the thermal mass of the RiverPro/RioPro housing near
the temperature sensor initially affects the temperature measurement. Within five minutes it
reaches equilibrium and the temperature is accurate within ± 1⁰C. If the temperature sensor
is not allowed to sufficiently equilibrate within the body of water to be measured it can
impact Speed Of Sound, velocity, and discharge-measurement accuracy.
Tethered boat
– The RiverPro/RioPro is moved to the center of the river, and the stationary moving bed
test is started. After five minutes the moving test is stopped, and the application displays the apparent
moving bed velocity.
Manned boat
– The Hydrologist begins a moving bed loop-test with the boat starting near the river bank.
The boat is maneuvered across to the opposite bank and back again. The user stops the test, and the loop
test results are displayed.
Either type of moving bed test (stationary or loop) can be performed with either deployment
method (tethered boat or manned boat).