64 pages for “q=pH”
… into hypochlorous acid and hypochlorite ion, in proportions that depend on pH. Hypochlorous acid is the form with the highest and fastest disinfecting power and prevails the closer the pH is to 7; the hypochlorite ion has a considerably lower oxidising power a …
Also in: Why control pH · How pH is measured · pH control systems
The LDspH controller measures the pH of the solution and controls the acid pump, which brings it to the set value in proportion to the deviation from the set point. pH 0 – 14 Proportional acid dosing Self-cleaning electrode also available Details Request a quo …
Also in: pH electrodes · Basic components · Operation · From the simplest to the most complete solution
A single controller for the two fertigation parameters: the LDpHCD adjusts the pH proportionally with acid and the conductivity with fertiliser. Two channels: pH and conductivity Acid and fertiliser Colour display Details Request a quotation pH and conductivit …
Also in: pH electrodes · Basic components · Operation · From the simplest to the most complete solution
Combination electrodes for measuring pH in water with a pH between 0 and 14, including low-conductivity water: for swimming pools, drinking water, wastewater and industrial water. Range 0 – 14 pH Also for low-conductivity water BNC or SN6 connection In by-pass …
Also in: Available models · Data sheet
… perform best and chlorine achieves its maximum disinfecting effectiveness. pH below 7.2 Attack on metal materials and irritation of bathers’ eyes and mucous membranes. pH above 7.4 Chlorine is converted into hypochlorite ion, which has little disinfecting powe …
Also in: Chlorine and pH · Disinfection and pH control · How much chlorine actually disinfects · Sodium hypochlorite
… perform best and chlorine achieves its maximum disinfecting effectiveness. pH below 7.2 Attack on metal materials and irritation of bathers’ eyes and mucous membranes. pH above 7.4 Chlorine is converted into hypochlorite ion, which has little disinfecting powe …
Also in: Chlorine and pH · How much chlorine actually disinfects · Sodium hypochlorite · The Redox potential of water and its variations
… into hypochlorous acid and hypochlorite ion, in proportions that depend on the pH: this is why the standard requires automatic control of both and the systems give priority to pH control. Insight: controlling the pH →Insight: chlorine in swimming pools → Stabl …
Also in: pH electrodes · Which system for your swimming pool · The treatment circuit of a public swimming pool · What the standard requires
pH 0 – 14 pH adjustment The LDspH controller measures the pH of the solution and controls the acid pump, which brings it to the set value in proportion to the deviation from the set point. Advantages A lower pH prevents the calcium hardness in the water from p …
Also in: pH and conductivity · From the simplest to the most complete solution · The requirements · Insights
Insight: how pH is measured → Versions for every type of water Single or double junction combination electrode, resistant to acids and bases, high temperatures and hydrofluoric acid, also suitable for low-conductivity water; available in a self-cleaning versio …
Also in: pH electrodes · Control principle · From the simplest to the most complete solution
pH electrodes Electrode Pressure Connection Body Minimum conductivity Junction Temperature Cable Diameter Notes EPHS 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 0.8 m 12 mm – EPHM 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 4.5 m 12 mm – EPHL 7 bar ( …
Also in: The treatment circuit of a swimming pool · Basic components · Operation in the swimming pool · Closed (membrane) amperometric cells – Free chlorine
pH electrodes Electrode Pressure Connection Body Minimum conductivity Junction Temperature Cable Diameter Notes EPHS 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 0.8 m 12 mm – EPHM 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 4.5 m 12 mm – EPHL 7 bar ( …
Also in: Simultaneous display of both parameters · Combinations and technical data · Closed (membrane) amperometric cells – Free chlorine · LDpHRh
pH electrodes Electrode Pressure Connection Body Minimum conductivity Junction Temperature Cable Diameter Notes EPHS 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 0.8 m 12 mm – EPHM 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 4.5 m 12 mm – EPHL 7 bar ( …
Also in: The treatment circuit of a swimming pool · Basic components · Operation in the swimming pool · Colour-coded status indication
pH electrodes Electrode Pressure Connection Body Minimum conductivity Junction Temperature Cable Diameter Notes EPHS 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 0.8 m 12 mm – EPHM 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 4.5 m 12 mm – EPHL 7 bar ( …
Also in: Basic components · Operation · Closed (membrane) amperometric cells – Free chlorine
pH electrodes Electrode Pressure Connection Body Minimum conductivity Junction Temperature Cable Diameter Notes EPHS 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 0.8 m 12 mm – EPHM 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 4.5 m 12 mm – EPHL 7 bar ( …
Also in: Measurable parameters and probes · Probe data sheet · Amperometric cells – Free chlorine · Display screens
pH electrodes Electrode Pressure Connection Body Minimum conductivity Junction Temperature Cable Diameter Notes EPHS 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 0.8 m 12 mm – EPHM 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 4.5 m 12 mm – EPHL 7 bar ( …
Also in: Basic components · Operation · Closed (membrane) amperometric cells – Free chlorine
pH electrodes Electrode Pressure Connection Body Minimum conductivity Junction Temperature Cable Diameter Notes EPHS 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 0.8 m 12 mm – EPHM 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 4.5 m 12 mm – EPHL 7 bar ( …
Also in: Basic components · Operation · From the simplest to the most complete solution
The disinfecting efficacy of chlorine depends on the pH of the water: as the pH rises, a greater quantity of chlorine is needed to inactivate the same quantity of microorganisms. Drinking water may have a pH between 6.5 and 9.5: for the same measured free chlo …
Also in: Why the DPD method and the closed cell give different values · The Redox potential in drinking water · The limitations of the DPD method · Summary table
Proportional to pH The required pH value (SET POINT) is set: the pump measures the pH by means of a pH electrode and progressively reduces the injection frequency as the set value approaches, stopping when the SET POINT is reached. Models: WDpHCl Chlorine, WDp …
Also in: Colour-coded status indication · WDpHCl Chlorine · WDpHCl Peroxide
Proportional to pH The required pH value (SET POINT) is set: the pump measures the pH by means of a pH electrode and progressively reduces the injection frequency as the set value approaches, stopping when the SET POINT is reached. Models: WNpHCl Chlorine, WNp …
Also in: Colour-coded status indication · WNpHCl Chlorine · WNpHCl Peroxide
Integrated pH meter TMS pH With integrated pH meter for automatic pH control. Proportional to pH Compare
Also in: Dosing modes · Main features · Troubleshooting and error messages · Model comparison
… with an amperometric cell. Down to 0.001 mg/l SCL or ECL Details → Compare pH and neutralisation LDspH pH control, also with electrode self-cleaning. 0 – 14 pH Self-cleaning Details → Compare Conductivity LDsCD Conductivity measurement with conductive or induc …
Integrated pH meter AMS pH With integrated pH meter for automatic pH control. Proportional to pH Compare
Also in: Dosing modes · Main features · Model comparison · Model selection
Integrated pH meter KMS pH With integrated pH meter for automatic pH control. Proportional to pH Compare
Also in: Dosing modes · Main features · Model comparison · Model selection
pH electrodes Electrode Pressure Connection Body Minimum conductivity Junction Temperature Cable Diameter Notes EPHS 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 0.8 m 12 mm – EPHM 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 4.5 m 12 mm – EPHL 7 bar ( …
Also in: What the controller manages · Main features · Models · MTOWER PLUS
pH electrodes Electrode Pressure Connection Body Minimum conductivity Junction Temperature Cable Diameter Notes EPHS 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 0.8 m 12 mm – EPHM 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 4.5 m 12 mm – EPHL 7 bar ( …
Also in: The treatment circuit of a swimming pool · Basic components · Closed (membrane) amperometric cells – Free chlorine · Complete management of the swimming pool
… is the most economical solution. The set point is determined by bringing the pH to the optimum value, measuring free chlorine with the colorimetric kit and reading the corresponding Redox value, typically 650 mV at pH 7.5. Insight: the Redox potential → Compar …
Also in: The role of pH in disinfection · pH electrodes · Which system for your swimming pool · The treatment circuit of a swimming pool
pH electrodes Electrode Pressure Connection Body Minimum conductivity Junction Temperature Cable Diameter Notes EPHS 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 0.8 m 12 mm – EPHM 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 4.5 m 12 mm – EPHL 7 bar ( …
Also in: Wastewater treatment · Application example: drinking water · Closed (membrane) amperometric cells – Free chlorine · Measurable parameters and probes
pH electrodes Electrode Pressure Connection Body Minimum conductivity Junction Temperature Cable Diameter Notes EPHS 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 0.8 m 12 mm – EPHM 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 4.5 m 12 mm – EPHL 7 bar ( …
Also in: What the controller manages · Closed (membrane) amperometric cells – Free chlorine · Measuring channels · Touch screen
pH electrodes Electrode Pressure Connection Body Minimum conductivity Junction Temperature Cable Diameter Notes EPHS 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 0.8 m 12 mm – EPHM 7 bar (3.5 bar) BNC Epoxy 100 µS – 70 °C (80 °C) 4.5 m 12 mm – EPHL 7 bar ( …
Also in: Panel-mounted MTOWER · Which system for your tower · Treatment functions · Measuring probes
pH and Redox pH electrodes 0 – 14 pH 13 models Details → pH and Redox Redox electrodes ± 1,500 mV 9 models Details → Disinfectants ECL open cells Free chlorine 0 – 10 mg/l Details → Disinfectants SCL closed cells 8 oxidants Also for hot water Details → Conduct …
… or a 4/20 mA signal. According to the measured pHIntegrated controller and pH electrode. According to the measured RedoxIntegrated controller and Redox (ORP) electrode. According to the measured free chlorineIntegrated controller and amperometric cell. From a …
… proliferate and deposits form on the bottom of the tank. 2 Disinfectant and pH Chlorine keeps the water disinfected; pH affects its effectiveness. 3 Continuous measurement The measurement of free chlorine or Redox controls dosing only when it is needed.
Regulating pH pH electrode · Measurement problems Insight → Well water Analysis and disinfection · Chlorine measurement · Systems Insight → Private swimming pools pH and disinfectants · Redox, cells and DPD Insight → Pools for collective use UNI 10637:2024 · C …
Also in: Products and fields of application
Drinking water Regulating pH pH electrode Measurement problems Insight → Drinking water Well water Analysis and disinfection Chlorine measurement Systems Insight → Swimming pools Private swimming pools pH and disinfectants Redox, cells and DPD Insight → Swimmi …
… between the set minimum and maximum values. Models: Velon MF Proportional to pH The required pH value (SET POINT) is set: the pump measures the pH by means of a pH electrode and progressively reduces the injection frequency as the set value approaches, stoppin …
Also in: Velon PO · Model comparison · Model selection · Which model to choose
… it is the most suitable disinfectant against Legionella. Independent of pH Effective between pH 4 and 10, with no loss of effectiveness; its action is not affected by corrosion inhibitors. Residual effectiveness It remains dissolved in water for a long time an …
… peroxide and peracetic acid, also with pumps for film-forming inhibitors. pH Stations for acids and for bases. Bromine Mixing and dosing of bromine. Redox Disinfectant dosed in proportion to the measured Redox potential. LDsRh system → Fertilisers Fertilisers …
Also in: Dosing modes · From the simplest to the most complete solution
… 8 mm 6 × 8 mm Equipment Flow sensor Flow sensor and flow regulator Electrodes pH, Redox, temperature, conductivity, amperometric cells, turbidity, dissolved oxygen As NPED NPED-E2 and NPED-E2-EV: maximum pressure 2 bar. In-line PEA PEB PEL PEL-E PEL-IND Materi …
… between the set minimum and maximum values. Models: VMS MF Proportional to pH The required pH value (SET POINT) is set: the pump measures the pH by means of a pH electrode and progressively reduces the injection frequency as the set value approaches, stopping …
Also in: VMS PO · Which model to choose · Model comparison
… of reducing substances (sodium bisulphite). Insight: the Redox potential → pH The Redox potential depends directly on pH and, to a lesser extent, on temperature: as the pH increases, the effectiveness of the oxidant decreases and a larger quantity of disinfect …
… efficiency constant They act in synergy with antiscalants and biocides pH correction Acid controls the alkalinity and pH of the recirculating water: a high pH increases the tendency to scale, particularly for calcium carbonate and phosphate, while too low a pH …
For pH control the basic solution is the dosing station; when dosing has to be controlled by the measured value, measuring controllers are used. Dosing station The simplest solution: the pump doses at a constant rate or in proportion to the volume of water mea …
… 2 2 3 3 3 2 Selective membrane Yes Yes Yes No No No Yes Automatic compensation pH and temperature pH and temperature pH and temperature pH and temperature pH and temperature pH and temperature Temperature Self-cleaning – – – Yes Yes Yes – Operating pH 5 – 9.5 …
Also in: ECL open cells · Free chlorine · Closed and open cells · Measuring principle of the closed cell
Chlorine dioxide High effectiveness against biofilm, action independent of pH and of the presence of corrosion inhibitors, no formation of organohalogen compounds and greater residual effectiveness; less effective on copper, not suitable for galvanised steel. …
Also in: Disinfection methods (Annex 13) · Cooling towers, swimming pools and whirlpool baths · Criteria for choosing the treatment
… network up to the points of use; continuous measurement keeps it constant. 3 pH pH affects the effectiveness of chlorine: it must be monitored and, where necessary, adjusted. 4 Turbidity In waterworks, turbid water can be diverted to drain before the contact t …
Also in: Redox control · Monochloramine · Waterworks with Centurio PRO · From the simplest to the most complete solution
… 2 2 3 3 3 2 Selective membrane Yes Yes Yes No No No Yes Automatic compensation pH and temperature pH and temperature pH and temperature pH and temperature pH and temperature pH and temperature Temperature Self-cleaning – – – Yes Yes Yes – Operating pH 5 – 9.5 …
Also in: Free chlorine · Measuring principle of the closed cell
… 2 2 3 3 3 2 Selective membrane Yes Yes Yes No No No Yes Automatic compensation pH and temperature pH and temperature pH and temperature pH and temperature pH and temperature pH and temperature Temperature Self-cleaning – – – Yes Yes Yes – Operating pH 5 – 9.5 …
Also in: Basic components · From the simplest to the most complete solution
… → Chlorine dioxide High effectiveness against biofilm, action independent of pH and of the presence of corrosion inhibitors, no formation of organohalogen compounds and greater residual effectiveness; less effective on copper, not suitable for galvanised steel …
Also in: Criteria for choosing the treatment · From the simplest to the most complete solution
… 2 2 3 3 3 2 Selective membrane Yes Yes Yes No No No Yes Automatic compensation pH and temperature pH and temperature pH and temperature pH and temperature pH and temperature pH and temperature Temperature Self-cleaning – – – Yes Yes Yes – Operating pH 5 – 9.5 …
Also in: Basic components · From the simplest to the most complete solution
… 2 2 3 3 3 2 Selective membrane Yes Yes Yes No No No Yes Automatic compensation pH and temperature pH and temperature pH and temperature pH and temperature pH and temperature pH and temperature Temperature Self-cleaning – – – Yes Yes Yes – Operating pH 5 – 9.5 …
Also in: Basic components · From the simplest to the most complete solution
Public swimming pools Public swimming pools and pools for collective use pH and free chlorine with amperometric cell (UNI 10637:2024, Italian standard): WDpHCl, WNpHCl, LDpHCl, Centurio POOL; dechlorination of discharges and footbath. UNI 10637 Centurio POOL D …
… sensor and regulation Yes Yes Yes Yes Yes – – Probe holder for Temperature, pH, Redox Temperature Temperature, pH, Redox (PG13.5) Temperature, pH, Redox Temperature – – All models: amperometric system, range 0 – 10 mg/l, resolution 0.01, organic and inorganic …
Also in: Available versions
… It does not alter the odour, taste or colour of the water, is active between pH 4 and 10, does not form trihalomethanes or organohalogen compounds and does not react with ammonia, thus avoiding the formation of chloramines. Recommended concentration against Le …
… to UNI 10637:2024 (Italian standard): automatic measurement and control of pH and free chlorine. Public swimming pools → Private swimming pools Residential pools, where free chlorine, Redox, hydrogen peroxide and salt are all options. Private swimming pools →
… to UNI 10637:2024 (Italian standard): automatic measurement and control of pH and free chlorine. Public swimming pools →
… → LD Dual Parameter Simultaneous management of two parameters, for example pH and chlorine, with a single controller. Details → Centurio PRO Management of up to 10 parameters and of all the pumps in the installation, with touch screen and remote control as sta …
… → LD Dual Parameter Simultaneous management of two parameters, for example pH and chlorine, with a single controller. Details → Centurio PRO Management of up to 10 parameters and of all the pumps in the installation, with touch screen and remote control as sta …
… It does not alter the odour, taste or colour of the water, is active between pH 4 and 10, does not form trihalomethanes or organohalogen compounds and does not react with ammonia, thus avoiding the formation of chloramines. Recommended concentration against Le …
… dioxide, chlorites, hydrogen peroxide, peracetic acid, bromine, Redox, pH, dissolved oxygen, conductivity, ozone and tracers, with temperature measurement and compensation. Up to 12 pumps Proportional, ON/OFF, PWM or timed operation; combined with a pulse-outp …
… mg/l Accuracy ± 1% of full scale Repeatability 2% Drift < 2% per month Sample pH 2 – 10 Analysis time About 30 seconds Analogue outputs 2 × isolated 4–20 mA (maximum 500 Ω) Digital inputs / outputs 1 input (sampling via probe), 1 general alarm output Display 4 …
… → LD Dual Parameter Simultaneous management of two parameters, for example pH and chlorine, with a single controller. Details → Centurio PRO Management of up to 10 parameters and of all the pumps in the installation, with touch screen and remote control as sta …
… → LD Dual Parameter Simultaneous management of two parameters, for example pH and chlorine, with a single controller. Details → Centurio PRO Management of up to 10 parameters and of all the pumps in the installation, with touch screen and remote control as sta …
… → LD Dual Parameter Simultaneous management of two parameters, for example pH and chlorine, with a single controller. Details → Centurio PRO Management of up to 10 parameters and of all the pumps in the installation, with touch screen and remote control as sta …
… → LD Dual Parameter Simultaneous management of two parameters, for example pH and chlorine, with a single controller. Details → Centurio PRO Management of up to 10 parameters and of all the pumps in the installation, with touch screen and remote control as sta …
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