Aquameter
™
Series Instruction Manual
10401-00188 Rev M
20. TROUBLESHOOTING
This section details some of the common difficulties you may encounter when using the
Aquameter, Aquaprobes and AquaLink software. Try all the suggested remedies. If your
problem is still unresolved, contact our Service Department (
).
Problem
Cause / Remedy
The Aquameter will not
turn on when the on/off
key is pressed.
Batteries are probably dead or incorrectly fitted. Check you have
fresh batteries fitted and that they are inserted the correct way
round.
The Aquameter turns on
but turns off again almost
immediately.
Batteries are probably nearly dead or incorrectly fitted. Check you
have fresh batteries fitted and that they are inserted the correct
way round.
The Aquameter can not
find the Aquaprobe.
Probably a poor connection. Switch the Aquameter off, disconnect
the Aquaprobe plug, ensure there is no debris or moisture in the
plug, then re-connect the plug ensuring it is fully inserted and that
the screw collar is fully tightened.
The GPS Aquameter will
not show a position fix.
The Aquameter probably does not have a good enough view of
the available satellites. Ensure there are no obstructions between
the Aquameter and the open sky. Remember, GPS
does not
work indoors.
The AquaLink software
can not find the
Aquameter.
The USB drivers may not be properly installed. Reinstall the USB
drivers carefully following the instructions.
There may be a problem with the USB socket on the PC, try an
alternative socket.
The ‘USB CONNECTED’
message does not
appear on the
Aquameter when it is
connected to a PC.
The batteries in the Aquameter may be dead or incorrectly fitted.
Check you have fresh batteries fitted and that they are inserted
the correct way round. The USB cable
does not
power the
Aquameter.
There may be a problem with the USB socket on the PC, try an
alternative socket.
ERROR 01 appears on
the Aquameter screen.
This indicates that the pH electrode has dropped below 85%
efficiency. Try cleaning the pH electrode and re-calibrating as
described in the relevant section of this manual. If that does not
cure the problem, replace the electrode.
ERROR 02 appears on
the Aquameter screen
(AP-900 & AP-1000
only).
This indicates that the Optical DO electrode needs calibrating or
the cap needs replacing. Perform a full DO calibration, first at DO
Zero then at 100% DO. If that does not cure the problem, replace
the Optical DO Cap
ERROR 07 appears on
the Aquameter screen.
This indicates that the Aquaprobe has stopped responding to
requests for data from the Aquameter. Check the Aquaprobe plug
is fully inserted. Cycle the power to reset the Aquaprobe.
Battery electrolyte
leakage detected in the
battery compartment.
Remove and discard the batteries immediately. Thoroughly clean
the battery compartment and terminals. If the battery terminals are
corroded, contact our Service Department for return instructions.
Dissolved Oxygen
readings are inaccurate
or unstable.
There may be insufficient flow across the Galvanic DO
membrane. Ensure a constant water flow whilst taking readings
(does not apply to AP-900 & AP-1000).
The DO electrode may need calibrating. Recalibrate.
The DO membrane may be dirty. Clean the DO membrane.
The DO membrane may be worn out or damaged. Replace the
DO membrane cap.
Calibration may have been carried out at an extreme temperature.
Recalibrate at a temperature as close to the sample temperature
as possible.
© 2011 Aquaread Ltd.
www.aquaread.co.uk
Page 58 of 64
