Auto Doser Setpoint Selection and Adjustment

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Auto Doser Setpoint Selection and Adjustment

Chlorine (ORP)

Increase your free chlorine level = Increase your ORP set point

Decrease your free chlorine level = Decrease your ORP set point

 

Increase your pH level = Increase your pH set point

Decrease your pH level = Decrease your pH set point

 

Adjusting the ORP Setpoint 

  • Click the Menu button
  • Using the Up & Down Arrows Button, Scroll down to ORP Options
  • Press Setup
  • Using the Up & Down Arrows Button, Scroll down to Set Point
  • Press Set
  • Using the Up & Down Arrows Button, Adjust the ORP Set point to the Desired Level
  • Once you have adjusted the ORP Set Point to the desired level, Press CFM(confirm)
  • To return to the main screen, Press ESC two times, and the Press Menu

Plunge Factory Settings

 

ORP Options  
Set Point 725mV (Depends on customer)
Proportional Band 70 mV
pH Flow Rate 0.5 L/h
Overtime  30 min (Total time the pump can run trying to reach setpoint)
Alarm High 950 mV (During testing I found the default value to be too low)
Alarm Low  200 mV
Alarm Low  Disable
Analog Out  Enable
CI2 Tank Input Disable

 

Adjusting the pH Setpoint 

  • Click the Menu button
  • Using the Up & Down Arrows Button, Scroll down to pH Options
  • Press Setup
  • Using the Up & Down Arrows Button, Scroll down to Set Point
  • Press Set
  • Using the Up & Down Arrows Button, Adjust the pH Set point to the Desired Level
  • Once you have adjusted the pH Set Point to the desired level, Press CFM(confirm)
  • To return to the main screen, Press ESC two times, and the Press Menu



pH Options  
Dose Type Acid
Set Point 7.35
Proportional Band 0.4 pH
pH Flow Rate 0.5 L/h
Overtime  30 min (Total time pump may run to reach setpoint. Timer is reset once setpoint is reached)
Alarm High 8 pH (alarm is triggered if reading for more than 5 seconds)
Alarm Low  6 pH
Alarm Low  Disable
Analog Out  Enable
Acid Tank Input Disable



The Swimming Pool Controller is an automatic system to measure and control levels of pH and free chlorine in a swimming pool or a spa. The chlorine level is measured based on the ORP of REDOX principle. An increase of the ORP value correlates with an increase of the level of free chlorine. pH and disinfectant testing are made together for more efficient disinfection and control. The efficacy of sanitizers, such as chlorine, are dependent on a controlled pH value. The ORP value is the most consistent indicator of the sanitizing effectiveness of the pool/spa or water treatment. Typically 650- 750 mV at 7.2 pH indicates proper water treatment (all harmful bacteria are killed in less than 1 s). pH and disinfectant testing are made using the HI1036-1802 combined electrode installed in-line or in flow-cell. 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. The HI1036-1802 uses a Ag/AgCl reference with 3.5 M KCl. It was specially designed to detect the broken electrode based on a shifted ISO potential value. The ORP values are referenced to it. 

 

It is the responsibility of the user/installer to determine an ideal setpoint for pH (e.g. 7,4) and ORP (e.g. 760 mv). The Swimming Pool Controller will dose acid in case the pH of the water is above the pH setpoint and it will dose chlorine in case the ORP value is lower than the ORP setpoint. 

 

Although the Swimming Pool Controller is an automatic system, the user/installer should check the Swimming Pool Controller and verify the levels of pH and free chlorine (in mg/L or ppm) in the pool, using a portable meter for pH and free chlorine. 

 

All measurements and the main events are logged in the internal memory of the Pool Controller and can be viewed using the plot/record log recall feature or exporting the data on a USB key for advanced data processing on a PC. 

 

The Swimming Pool Controller should only be used in combination with liquid acid (e.g. sulfuric acid) and liquid chlorine (e.g. Sodium hypochlorite).

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