In-Situ Aquaculture Buoy Manual (purchased before 28 May 2013) - Manual (Page 31)

Troubleshooting 31
Chapter 7 Troubleshooting
7.1 TROUBLESHOOTING THE BUOY
The buoy operates in extremely harsh environments. If you suspect
that something has malfunctioned in the buoy, pull the buoy from the
pond and visually inspect the following:
• The probe and brush—Make sure that there is no biofouling, feed, or
mud interfering with the operation of these parts.
• The brush motor—Make sure that the brush did not become tangled
in algae or other material and burn out the motor.
• The chlorine tablet—Replace as needed.
• The brush shaft—Make sure that the shaft is not damaged.
7.2 CHECKING THE POWER
The system will not work if the solar-powered battery charge falls
below 7 volts. Check the voltage on the following items to make sure
that they are operational:
• Solar panel
• Voltage regulator
• Battery
Also, check all wiring connections to make sure they are secure.
7.3 CHECKING THE COMMUNICATION
A red zero oxygen reading on the computer screen indicates a lack of
communication between the buoy and the host PC. Check the power
as described in the previous section.
Check that the radio module is seated firmly in place and that the
antenna is properly connected. You may replace the antenna, if
desired. Test the radio by swapping it out with a radio from another
buoy that is working properly.
If the power is connected, inspect the transmitter housing that holds
the oxygen control board and test for power.
1. Remove the housing cover.
2. Check the power input terminal in the bottom right corner. You
should measure 11 to 14 volts DC at this connector.
3. If voltage is low, charge or replace the battery. Check the solar panel
and charge controller for damage.