Apex Classic Setup and Programming Guide v2.2 Page 103
Many reef aquariums which are heavily stocked with stony corals require large
additions of calcium. One popular method to add calcium to these systems is
mixing calcium hydroxide powder with fresh top-off water. However, this mixture
is highly alkaline (high pH) which if added in large amounts, can raise the pH of
the system to unhealthy levels. This program example builds on the Automatic
Top Off program from the previous example (section titled Automatic Top Off).
Assign and create the following outlets using the instructions in earlier sections of
this manual.
ATO Automatic Top Off, this outlet is where the top-off pump is
connected.
Sump_High create as a Virtual Outlet to indicate the state of the
Sump_High float switch.
Sump_Low create as a Virtual Outlet to indicate the state of the Sump_High
float switch.
pH pH probe used to measure the pH of the main display.
Outlet Programs
Sump_Low <Virtual Outlet>
If Switch1 CLOSED Then ON
If Switch1 OPEN Then OFF
Sump_High <Virtual Outlet>
If Switch2 CLOSED Then ON
If Switch2 OPEN Then OFF
ATO <Real Outlet>
Fallback OFF
If Outlet Sump_Low = ON Then ON
If Outlet Sump_High = ON Then OFF
If pH > 8.30 Then OFF
SndAlm <System Outlet>
If Outlet Sump_High = ON Then ON
If pH > 8.60 Then ON
… other alarm commands
EmailAlm <System Outlet>
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