IOP 017C.1
Effective Date: 1/179/2020
Page 2 of 2
PROCEDURES:
1.
Connect the AquaPulse to the top of the wading rod.
2.
Press the
ON/SELECT
button to turn unit on.
3.
Press the
ON/SELECT
button to cycle through time intervals until you get to either 100 or 200
seconds.
4.
Place current meter at desired location in the stream and press “
Count/Stop
” to begin the counting
process. The unit will begin counting after the first impulse and the time and revolutions will be
displayed.
5.
After at least 40 seconds has elapsed and the number of revolutions reaches one of the numbers on
the standard rating table (3, 7, 10, 15, 20, etc.), press the
Count/Stop
button. The revolution will
be displayed in the
Count
window and the time will be displayed in the
Time
window. Record
the revolutions and time (rounded to the nearest second) on a discharge measurement form.
6.
Use the USGS Standard Rating Table 2 to find the velocity. Record velocity on a discharge
measurement form.
7.
Go back to step 3 for next measurement.
MAINTENANCE:
Replace battery when needed.
Wipe with dry soft cloth before storing.
REFERENCES:
Rickly Hydrological Co. AquaPulse Impulse Counter/Timer Instruction Manual.
This procedure has been reviewed and approved by the undersigned representative of the U.S.
Fish and Wildlife Service.
REVIEWED/APPROVED______________________________ DATE____________
Field Supervisor (U.S.)
Jessica M. Barber
Digitally signed by
JESSICA BARBER
Date: 2020.03.10
11:22:55 -04'00'
