ION Director

Fully Automatic Measurement and Control of Ca, Mg, K, Na, NO₃

The ION Director® uses state-of-the-art ion-selective technology to automatically and accurately measure essential water parameters – calcium, magnesium, potassium, sodium, and nitrate – with maximum comfort and affordable operating costs.

The precise and durable multi-ion sensor, specially developed by GHL for seawater analysis, requires no reagents. Instead, it uses cost-effective reference liquids for automatic calibration. Inaccurate, time-consuming, and costly measuring methods, such as test kits, are a thing of the past.

In addition to measurement, the ION Director® System offers many other functions:

• Control: Automatic readjustment of dosing pumps to keep a value stable
• Monitoring: Alarm when the value is outside an adjustable range
• Analysis: Display in charts and logbook (via app, cloud and web server GHL Connect and GHL Control Center).

The ION Director® can be used alone or in combination with the KH Director®.

With the IOND and KHD, you can fully automate the regulation of the aquarium’s key water parameters. While the KHD measures and controls alkalinity, the IOND covers other important parameters necessary to maintain a healthy reef.

How does the ION Director® work?

The IOND was designed as an accessory device and requires either a GHL Doser 2 Standalone or a ProfiLux aquarium controller (3 or 4) with GHL Doser 2 Slave to operate, see configurations below.

3 pump heads are required to perform the measurement.

To achieve the highest possible measurement accuracy, each test is performed with a freshly calibrated sensor. Two pump heads are used to convey the reference fluids required for the calibration, a sample of the aquarium water is pumped into the ION Director® by the third pump.

Reference fluids and some sample water are collected in a separate container for later disposal.

How can the measured parameters be controlled?

Thanks to the innovative technology of the ION Director®, each parameter can be accurately measured and automatically regulated. If a parameter is too low or too high, the IOND can automatically calculate the amount by which dosages need to be changed to maintain stable values. It is therefore also suitable for different systems such as Balling® (Light) or Triton® .

After a measurement, the deviation of the real value from the desired value (setpoint) is known. The following control modes operate on the basis of this deviation.

Add-On Control Mode

The set dosing quantities of certain dosing pumps are readjusted depending on the deviation determined, the user sets the quantity (in ml) by which the dosing quantity should change in the event of a certain deviation.

Adaptive control mode

Works similar to the Add-On control mode, but here the user determines the percentage change of the set dosing quantity for a certain deviation.