bluelab pH Controller Wi-Fi User Manual

2.5.5 Dosing OnTime and OffTime

A
dosing
cycle
includes
the
OnTime
and
the
OffTime
that
the
peristaltic
pump doses
for. The arrow symbol on the display will flash during the dose cycle.
 Adjustments for OnTime and OffTime will be required so that three dosing cycles
only change the pH value by 0.1 pH.
 Start with a long ‘OffTime’ and adjust back as you go. The more thorough the
mixing in the tank, the shorter the ‘OffTime’ can be.
To
set
the
OnTime
value:
Use the menu item
‘OnTime’
‘OnTime’ the length of time pump will
dose for. From 1 to 60 seconds.
To
set
the
OffTime
value:
Use the menu item ‘
Off Time
’
.
OffTime’ the delay time between each
dose. This gives the system time to mix the
stock solution into the reservoir thoroughly,
so the Bluelab pH Controller measures the
solution accurately. From 1 to 60 minutes.
2.5.6 Pump Speed
To
change
the
pump speed:
Use the menu item ‘Pump Speed’
Can be set at 20%, 40%, 60%, 80% or 100%.
The default is 100%.
Note, the actual flow rate will not change
linear due to tubing size and viscosity of
liquid. Always test the flow rate to ensure
it takes at least three dosing cycles to
change your reservoir pH by 0.1.

bluelab pH Controller Wi-Fi Specifications

General

Brand	bluelab
Model	pH Controller Wi-Fi
Category	Controller
Language	English