Controlling the KH value

KH Director® offers the most comprehensive methods and most adjustment options for the control of the KH value, KH Director® is thus suitable for different systems, eg. Balling® (Light), Triton® or kalk reactor. Depending on the difference between the target value and the current value of KH (= control difference), appropriate activities for increasing the KH value are started.

Choose the optimal mode for your aquarium and customize it individually:

Add-on control mode

Use between 1 and 5 dosing pumps to add liquids to the aquarium depending on the control difference, KHD automatically calculates the appropriate quantities. The dosages can be time-delayed if the liquids are not to be dosed at the same time and divided into several sub-quantities per day. It is also possible that the dosing pumps used follow a dosing schedule, the quantities calculated by the KHD are then added to this dosing schedule.

Adaptive control mode

In this mode, 1 to 5 dosing pumps can also be used to add liquids to the aquarium depending on the control difference. In this mode, you set a dosing schedule for the dosing pumps involved, and the quantities of the dosing plan are varied by the KHD. If the KH value is correct, the dosing schedule remains unchanged, if the KH value is too low, all quantities of the dosing plan are increased as a percentage. If the KH value is too high, the quantities are reduced. The quantity change is dependent on the control difference and is calculated automatically.

Kalk reactor control mode

In this mode, a kalk reactor can be down-regulated depending on the KH value.
A kalk reactor is usually operated by CO2 addition and control of the pH value; the actual pH value in the kalk reactor is measured by a pH electrode. If you select this pH electrode in the KH Director Options, the KHD can switch off CO2 if necessary (KH target value reached), otherwise the normal CO2 control is activated. This mode is only possible with a ProfiLux aquarium computer.

 

 

KH Director Sets

Operation of the KH Director requires always a GHL Doser with at least 3 pumps, depending on the configuration either as Slave or as Standalone version.
GHL offers these sets:

• KH Director + GHL Doser 2.1 Standalone 4-way
• KH Director + GHL Doser 2.1 Slave 4-way

Both sets have a significant price advantage compared to buying separately, they are offered in white and black and in these country versions: Schuko, UK, CH, USA/CND, AUS.
The sets include a PAB cable (50 cm / 19.6″).