Whether you are a public pool manager, swimming pool or hot tub owner, we have a solution for the management of your pool!
The easiest way to achieve clean and clear water in the pool is with automatic dosing of chemicals.
BL12X pumps measure and precisely control chlorine and pH balance with the help of integrated peristaltic pumps and multiparameter pH/ORP/Temp probe.
This gives a complete compact system that can measure, analyze and make automatic dosing based on the parameters that are measured (pH/ORP). This way the water quality is continuously monitored and precise dosing of chemicals is enabled.
The chlorine level is measured based on the ORP or REDOX principle. An increase of the ORP value correlates with an increase of the free chlorine level. pH and disinfectant testings are made together for more efficient disinfection and control. The efficacy of sanitizers, is dependent on a controlled pH value. The ORP value is the most consistent indicator of the sanitizing effectiveness of the pool/hot tub or water treatment.
To prevent the ground loop effects from causing erratic readings and damage to the system the electrode has a matching pin considered the “earth ground“ connection. It was specially designed to detect the broken electrode based on a shifted ISO potential value. The HI1036-1802 uses a Ag/AgCl reference with 3.5 M KCl. The ORP values are referenced to it.
Save the chemicals!
With chlorine disinfection there is an inverse relationship between pH and ORP. As the pH level increases, the ORP level decreases. The BL120 utilizes a dosing consent feature that will not dose chlorine until the pH value is first corrected since it is possible to have a low ORP value even though there is sufficient chlorine. The dosing consent feature prevents wastage of chemicals and avoids a higher than necessary chlorine concentration.
The BL122 and BL123 are equipped with two peristaltic dosing pumps with replaceable chemical resistant tubing. When using a diaphragm pump, chlorine gas formed from outgassing can collect in the pump head resulting in the pump losing its prime; the buildup of chlorine gas is not a problem with peristaltic pumps that use rollers and tubing.
Pool Line controllers feature proportionally controlled dosing pumps. Based on the sensitivity of the process to chemical addition, these controllers allow the user to adjust a proportional band. This setting determines the amount of time that the pumps are dosing as a percentage of the deviation from the set point allowing for very fine control in maintaining the desired set point.
The flow rate from the dosing pumps is adjustable from 0.5 to 3.5L/h. Larger bodies of water require more chemical to be dosed than small bodies since it takes more chemical to realize a change in the reading. The adjustable flow rate, like the proportional band, allows for better control in maintaining a desired set point.
These systems remove the need for continuous manual testing and adjustments of multiple chemical levels of the pool water on a daily basis.
pH/ORP Controllers - BL122 • BL123
BL122 and BL123 are designed to maintain constant pH and disinfectant levels in swimming pools, hot tubs, and spas and offer the added benefi t of allowing remote connection and access to devices via the Hanna Cloud web app. These controllers are available in two configurations. The basic version is the inline model which allows for direct installation of probe and chemical injection fittings into existing piping. A panel mounted version with a bypass flow cell is also available. The bypass flow cell allows for calibration and maintenance of the probe without having to shut down the recirculation pump.
Let your dream take you beyond Clouds!
Hanna Cloud is a web-based application that connects you to measurement devices such as the BL122 and BL123. Measurements and data storage are accessible from your PC, tablet or phone. Measurements, trends, history, device settings, alarms, and messages are transmitted to your “Dashboard” as your instrument measures and controls your process.
pH/ORP Controllers - BL120 and BL121
with Built-In Chemical Feed Pumps
These Swimming Pool Controllers are a complete system designed for maintaining swimming pool, hot tub, and spa disinfection water quality. These controllers are available in two configurations. The basic version is the in-line model which allows for direct installation of probe and chemical injection fittings into existing piping. A panel mounted version with a bypass flow cell is also available. The bypass flow cell allows for calibration and maintenance of the probe without having to shut down the recirculation pump.
Pool Line ORP Controller and Dosing Pump - BL101
Engineered to be an inexpensive solution for homeowner and maintenance companies to maintain the ideal ORP at all times of a swimming pool or hot tub. The BL101 Pool Line ORP Controller and Dosing Pump is a complete solution with both a process controller and a chemical dosing pump. Simply insert the probe and injection valve in-line with the re-circulation pump and supply the oxidizer (i.e. chlorine) to be dosed.
- All in one solution for maintaining the proper ORP value
- Industrial process probe with 1/2″ NPT threads for insertion into re-circulation line
- Input for level controller or flow switch
BL100 pH Controller and Dosing Pump
is a system engineered for maintaining the pH of swimming pools, hot tubs, and spas. Typically chlorine, whether liquid or solid, is alkaline and will raise the pH of the water that it is added to. As the pH increases above pH 7.4, a form of chlorine known as hypochlorite ion (OCl-) increases. This form of chlorine is 100 time less effective at killing bacteria as compared to the other form of chlorine known as hypochlorous acid (HOCl). For this reason it is important to maintain the correct pH level in order to ensure that the more powerful hypochlorous acid form is available for disinfection. The BL100 was developed to be an inexpensive solution for the consumer to maintain the ideal pH at all times. Simply insert the probe and injection valve in-line with the recirculation pump and provide the chemical to be dosed.
- All in one solution for maintaining the proper pH
- Industrial process probe with 1/2″ NPT threads for insertion into re-circulation line
- Input for level controller or flow switch
Author: Nives Vinceković Budor, mag.ing.chem.ing.
