3.0 Installing the Bluelab pH Controller
3.1 Mounting the Bluelab pH Controller
Select a suitable location that is:
Less than 5.65 feet / 2 meters from your reservoir.
The probes must be immersed in solution at all
times. Less than 4.9 feet / 1.5 meters from an
electrical mains outlet.
Less than 5.56 feet / 2 meters from pH Up or Down
solution. The inlet tube must reach the bottom of
the container.
At a suitable height to see the display and for easy
operation (recommend slightly below eye level
when standing).
NOTE: Avoid placing the pH controller where it can be
damaged by direct sunlight, water, nutrient salts or pH
adjuster.
Fix the fasteners through the desired
in the top and bottom of the case.
3.2 Placement of the probes
The tip of the Bluelab pH Probe must be submerged in the liquid for a
measurement to occur. It is optional to use the Bluelab Temperature Probe, but it
is required for automatic temperature compensation (ATC) to occur, or to enable
‘Earthlink’.
Do not pour concentrated nutrient solution or pH adjuster directly onto probes when
in the reservoir. Strong acids, alkali and nutrients damage the probes, trigger the
alarms (if on), cause the pump to accidentally dose or stop dosing, or interfer with
the control program.
For accuracy, ensure the probes are in an area where the reservoir/tank solution is
well mixed.
pH and temperature probes can be fully submerged in the solution.
Remove the storage cap from the pH probe by
gripping the top of the cap and gently twisting
the base one rotation to loosen. Slide the
storage cap off the pH probe.
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