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Apex Classic Setup and Programming Guide v2.2
Page
43
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The DO probe should not be located above air diffusers or in area with air
bubbles in the water column. Air bubbles will cause erroneous readings.
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The DO probe should mounted with the membranes pointing up so that
bubbles do not collect on the membrane surface. A cable tie can be use to
secure the DO probe to its cable so that it hangs in membrane up
orientation.
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The DO probe should be mounted in a location that has at least 3cm/sec of
water movement.
The PM3 connects to the Apex system via AquaBus. It does not matter into which
AquaBus connector it is plugged into. When the Probe Module has been
successfully added to the system the PM3 status light will change from flashing
yellow to solid green.
NOTE: The Dissolved Oxygen reading can be added to the Apex Display and Web
Interface Status Screens. See the section titled Display Setup for more
information.
To enable the Dissolved Oxygen probe:
Apex Display: Setup – DO Setup – DO Enable – If you have more than
one Dissolved Oxygen port on your system, use the up/down arrow keys to
choose the port you wish to configure, press Select, then use the up/down
arrow keys to select on/off for that port, press Save when done or Exit to
discard changes.
Web Interface: This option is not available from the Web Interface.
In order for the Dissolved Oxygen probe to read correctly, the altitude of the
probe must be set. To set the altitude of your system:
Apex Display: Setup – DO Setup – Altitude – use the up/down arrow keys
to set your system altitude to the nearest 100 feet, press OK when done or
Exit to discard changes.
Web Interface: This option is not available from the Web Interface.
In order for the Dissolved Oxygen probe to read correctly, the salinity of your
system must be entered. To set the salinity of your system:
Apex Display: Setup – DO Setup – Salinity – use the up/down arrow keys
to set your system salinity, press OK when done or Exit to discard changes.
Web Interface: This option is not available from the Web Interface.