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DULCOTEST® Sensors for Free Chlorine

Graduated measuring ranges 0.01 – 200 mg/l

The application-based DULCOTEST® sensors for free chlorine deliver precise measured values and a high degree of monitoring and process reliability in any disinfection application.

Product description

Reliable online measurement of free (effective) chlorine – with the versatile DULCOTEST® sensors.

Free chlorine is the most important disinfectant in the world. This term is used to refer to the compounds Cl2 (elementary chlorine), HOCl (hypochlorous acid) and OCl- (hypochlorite).

Our product line of DULCOTEST® sensors for free chlorine provides five product ranges optimised for different applications. Each product range consists of several types with different measuring ranges.

The proven diaphragm-covered standard sensor for free chlorine CLE3 is used to monitor or control all types of clear water, for example in the disinfection of potable water. The variant CLE3.1 is especially suitable for an excess of combined chlorine Mono-, di-, trichloroamine. The measuring result of type CLE (free chlorine) is subtracted from the ... more in the glossary, providing the most accurate results in the calculation of combined chlorine Mono-, di-, trichloroamine. The measuring result of type CLE (free chlorine) is subtracted from the ... more in the glossary from the measurement of total chlorine Total of free and combined chlorine. Recommended sensor: Type CTE, reference method DPD4. more in the glossary and free chlorine.

Sensors CLB2 and CLB3 are easy-to-operate, low-cost chlorine sensors without a diaphragm for clear water without pollution.

Sensor CLO1 is particularly suitable for in-line electrolysis Chlorine and sodium hydroxide are produced in-situ in electrolysis by passing an electric ... more in the glossary processes where unwanted compounds may be formed; sensor CLO2 is also ideal for hot water disinfection.

Sensor CBR1 can be used in contaminated water, even for high pH values of up to 9.5, for example in the disinfection of cooling water.

Sensor CLR1 has been optimised for the disinfection or washing of foodstuffs and tolerates contaminated water and chlorine concentrations of up to 1,000 mg/l.

Your benefits

  • Five different sensor ranges and numerous different versions deliver the following benefits: Use with a wide range of water qualities (pH, salt content, temperature, chemical and contamination load), use in combination with many disinfection processes: chlorine gas, sodium hypochlorite, calcium hypochlorite, electrolysis, use in a wide measuring range of 0.01 to 1,000 mg/l.
  • Precise, real-time amperometric measurement for efficient process control (short response time)
  • Amperometric measuring means no clouding or discolouration
  • Stable zero point
  • Integrated temperature compensation eliminates faults caused by influence of temperature
  • For sensors with diaphragm-covered measuring electrodes: Reduced dependence on flow, substances in water and film-forming media. Diaphragm-covered measuring electrodes embedded in an electrolyte ensure long service life. This maintains optimum measuring conditions regardless of process conditions. Low-cost maintenance thanks to easy diaphragm cap changes.

Field of application

Chlorine measurement in potable, swimming pool, cooling, industrial, process, rinsing and waste water as well as seawater and salt water

    1 2 3 4

    Technical Details

    Free chlorine (hypochlorous acid HOCl)

    • CLE 3; pH: 5.5 … 8.0; Temp. 5 … 45 °C
    • CLE3.1; pH: 5.5 … 8.0; Temp. 5 … 45 °C
    • CLO 1; pH: 5.0 … 9.0; Temp. 5 … 45 °C
    • CLO 2; pH: 5.0 … 9.0; Temp. 5 … 70 °C
    • CLB1; pH: 5.0 … 9.0; Temp. 5 … 45 °C
    • CLB2; pH: 5.0 … 9.0; Temp. 5 … 45 °C
    • CBR 1; pH: 5.0 … 9.5; Temp. 5 … 45 °C
    • CLR 1; pH: 5.5 … 8.0; Temp. 5 … 45 °C

    Sensor for Free Chlorine CLE 3-mA

    Standard sensor for measuring free chlorine in clear water. For operation on controllers with 4-20 mA input

    Your benefits

    • Measured variable: free chlorine, no significant cross sensitivity to combined chlorine (chloramines)
    • Diaphragm-covered sensor (encapsulated) minimises faults caused by changing flow or ingredients in the water
    Measured variablefree chlorine
    Reference methodDPD1
    pH range5.5 … 8.0
    Temperature5 … 45 °C
    Max. pressure1.0 bar
    Intake flow30…60 l/h (in DGM or DLG III)
    Supply voltage16...24 V DC (two-wire technology)
    Output signal4…20 mA ≈ measuring range, temperature-compensated, uncalibrated, not electrically isolated
    SelectivityFree chlorine as against combined chlorine, even if there is not an excess of it
    Disinfection processChlorine gas, hypochlorite, electrolysis with diaphragm, disinfectants with organic chlorine, e. g. based on cyanuric acid, are unsuitable
    InstallationBypass: open sample water outlet
    Sensor fittingDGM, DLG III
    Measuring and control equipmentD1Cb, DAC, delta® solenoid-driven diaphragm metering pump
    Typical applicationsCLE 3-mA-0,5 ppm: potable water; CLE 3-mA-2.0/10 ppm: swimming pools (surfactant-free)
    Resistance toSalts, acids, alkalis. Not surfactants
    Measuring principle, technologyAmperometric, 2 electrodes, membrane-covered
    Measuring rangeOrder no.
    CLE 3-mA-0.5 ppm0.01…0.5 mg/l792927
    CLE 3-mA-2 ppm0.02…2.0 mg/l792920
    CLE 3-mA-5 ppm0.05…5.0 mg/l1033392
    CLE 3-mA-10 ppm0.10…10.0 mg/l792919
    CLE 3-mA-20 ppm0.20…20.0 mg/l1002964
    CLE 3-mA-50 ppm0.50…50.0 mg/l1020531
    CLE 3-mA-100 ppm1.00…100.0 mg/l1022786

    Chlorine sensors complete with 100 ml of electrolyte

    A mounting kit, order no. 815079, is required for initial fitting of the chlorine sensors in the in-line probe housing DLG III.

    Sensor for Free Chlorine CLE 3.1-mA

    Sensor for the measurement of free chlorine in clear water with higher selectivity towards combined chlorine. For use on controllers with 4-20 mA input

    Your benefits

    • Measured variable: free chlorine, no cross sensitivity to combined chlorine (chloramines), even if there is an excess of it
    • Diaphragm-covered sensor (encapsulated) minimises faults caused by changing flow or ingredients in the water
    Measured variableFree chlorine (hypochlorous acid HOCl) with high levels of combined chlorine; for determining the combined chlorine with a DAC controller and sensor for total chlorine type CTE 1-mA
    Reference methodDPD1
    pH range5.5 … 8.0
    Temperature5 … 45 °C
    Max. pressure1.0 bar
    Intake flow30…60 l/h (in DGM or DLG III)
    Supply voltage16...24 V DC (two-wire technology)
    Output signal4…20 mA ≈ measuring range, temperature-compensated, uncalibrated, not electrically isolated
    SelectivityFree chlorine as against combined chlorine, even if there is an excess of it
    Disinfection processChlorine gas, hypochlorite, electrolysis with diaphragm, disinfectants with organic chlorine, e. g. based on cyanuric acid, are unsuitable
    InstallationBypass: open sample water outlet
    Sensor fittingDGM, DLG III
    Measuring and control equipmentD1Cb, DAC, delta® solenoid-driven diaphragm metering pump
    Typical applicationsPotable water with higher volumes of combined chlorineSwimming pools.To determine the combined chlorine from the difference: Total chlorine minus free chlorine in the controller DAC
    Resistance toSalts, acids, alkalis. Not surfactants
    Measuring principle, technologyAmperometric, 2 electrodes, membrane-covered
    Measuring rangeOrder no.
    CLE 3.1-mA-0.5 ppm0.01…0.5 mg/l1020530
    CLE 3.1-mA-2 ppm0.02…2.0 mg/l1018369
    CLE 3.1-mA-5 ppm0.05…5.0 mg/l1019398
    CLE 3.1-mA-10 ppm0.10…10.0 mg/l1018368

    Chlorine sensors complete with 100 ml of electrolyte

    A mounting kit, order no. 815079, is required for initial fitting of the chlorine sensors in the in-line probe housing DLG III.

    Sensor for Free Chlorine CLE 3-DMT

    Standard sensor for measuring free chlorine in clear water. For operation on ProMinent transmitters type DMT

    Your benefits

    • Measured variable: free chlorine, no significant cross sensitivity to combined chlorine (chloramines)
    • Diaphragm-covered sensor (encapsulated) minimises faults caused by changing flow or ingredients in the water
    Measured variablefree chlorine
    Reference methodDPD1
    pH range5.5 … 8.0
    Temperature5 … 45 °C
    Max. pressure1.0 bar
    Intake flow30…60 l/h (in DGM or DLG III)
    Supply voltage3.3 V DC (5 P)
    Output signal 0...1 V DC, uncalibrated, not temperature compensated, not electrically isolated
    Temperature measurementAbout the integrated Pt 1000. The temperature compensation is carried out in DMT.
    SelectivityFree chlorine as against combined chlorine, even if there is not an excess of it
    Disinfection processChlorine gas, hypochlorite, electrolysis with diaphragm, disinfectants with organic chlorine, e. g. based on cyanuric acid, are unsuitable
    InstallationBypass: open sample water outlet
    Sensor fittingDGM, DLG III
    Measuring and control equipmentDMT
    Typical applicationsCLE 3-mA-0,5 ppm: potable water; CLE 3-mA-2.0/10 ppm: swimming pools (surfactant-free)
    Resistance toSalts, acids, alkalis. Not surfactants
    Measuring principle, technologyAmperometric, 2 electrodes, membrane-covered
    Measuring rangeOrder no.
    CLE 3-DMT-5 ppm0.01…5.0 mg/l1005511
    CLE 3-DMT-50 ppm0.10…50.0 mg/l1005512

    Chlorine sensors complete with 100 ml of electrolyte

    A mounting kit, order no. 815079, is required for initial fitting of the chlorine sensors in the in-line probe housing DLG III.

    Sensor for free chlorine CLE 3-CAN-P

    Standard sensor for measuring free chlorine in clear water. For use on controllers with CAN-bus connection

    Your benefits

    • Measured variable: free chlorine, no significant cross sensitivity to combined chlorine (chloramines)
    • Diaphragm-covered sensor (encapsulated) minimises faults caused by changing flow or ingredients in the water
    • Operation on the CAN-bus with all the associated benefits
    Measured variablefree chlorine
    Reference methodDPD1
    pH range5.5 … 8.0
    Temperature5 … 45 °C
    Max. pressure1.0 bar
    Intake flow30…60 l/h (in the DGM or DLG III)
    Supply voltageVia CAN interface (11 - 30 V)
    Output signal Uncalibrated, temperature compensated, electrically isolated
    SelectivityFree chlorine as against combined chlorine, even if there is not an excess of it
    Disinfection processChlorine gas, hypochlorite, electrolysis with diaphragm, disinfectants with organic chlorine, e. g. based on cyanuric acid, are unsuitable
    InstallationBypass: open sample water outlet
    Sensor fittingDGM, DLG III
    Measuring and control equipmentDULCOMARIN®
    Typical applicationsPotable water, swimming pool water
    Resistance toSalts, acids, alkalis. Not surfactants
    Measuring principle, technologyAmperometric, 2 electrodes, membrane-covered
    Measuring rangeOrder no.
    CLE 3-CAN-P-10 ppm0.01…10.0 mg/l1083209

    Chlorine sensors complete with 100 ml of electrolyte

    A mounting kit, order no. 815079, is required for initial fitting of the chlorine sensors in the in-line probe housing DLG III.

    Sensor for free chlorine CLE 3.1-CAN-P

    Sensor for the measurement of free chlorine in clear water with higher selectivity towards combined chlorine. For use on controllers with CAN-bus connection

    Your benefits

    • Measured variable: free chlorine, no cross sensitivity to combined chlorine (chloramines) even if there is an excess of it
    • Diaphragm-covered sensor (encapsulated) minimises faults caused by changing flow or ingredients in the water
    • Operation on the CAN-bus with all the associated benefits
    Measured variablefree chlorine with high levels of combined chlorine; for determining the combined chlorine with a DULCOMARIN® and sensor for total chlorine type CTE 1-CAN
    Reference methodDPD1
    pH range5.5 … 8.0
    Temperature5 … 45 °C
    Max. pressure1.0 bar
    Intake flow30…60 l/h (in DGMa or DLG III)
    Supply voltageVia CAN interface (11 – 30 V)
    Output signal Uncalibrated, temperature compensated, electrically isolated
    SelectivityFree chlorine
    Disinfection processChlorine gas, hypochlorite, electrolysis with diaphragm, disinfectants with organic chlorine, e. g. based on cyanuric acid, are unsuitable
    InstallationBypass: open sample water outlet
    Sensor fittingDGM, DLG III
    Measuring and control equipmentDULCOMARIN®
    Typical applicationsPotable water with higher percentages of combined chlorine;Swimming pool.To determine the combined chlorine from the difference: Total chlorine minus free chlorine in the controller DULCOMARIN®
    Resistance toSalts, acids, alkalis. Not surfactants
    Measuring principle, technologyAmperometric, 2 electrodes, membrane-covered
    Measuring rangeOrder no.
    CLE 3.1-CAN-P-10 ppm0.01…10.0 mg/l1083584

    Chlorine sensors complete with 100 ml of electrolyte

    A mounting kit, order no. 815079, is required for initial fitting of the chlorine sensors in the in-line probe housing DLG III.

    Sensor for Free Chlorine CLO 1-mA

    Sensor for the measurement of free chlorine in clear water even when using electrolysis processes for disinfection, up to 45 °C (1 bar) or 8 bar (25 °C). For use with controllers with 4-20 mA input

    Your benefits

    • Measured variable: free chlorine, no significant cross sensitivity to combined chlorine (chloramines)
    • Use with return of the sample water to the process line
    • Use at higher pressures
    • Minimisation of faults by electrolysis systems in which the electrodes are immersed directly into the sample water (without diaphragm) by open sensor (no diaphragm) and gold electrodes
    • Measurement of free chlorine up to pH 9
    Measured variablefree chlorine
    Reference methodDPD1
    pH range5.0 … 9.0
    Temperature5 … 45 °C
    Max. pressure8.0 bar (25 °C)
    Intake flow30…60 l/h (in DGM or DLG III), constant flow as flow-dependent signal
    Supply voltage16...24 V DC (2-wire)
    Output signal4…20 mA = Measuring range, temperature-compensated, uncalibrated, not electrically isolated
    SelectivityFree chlorine as against combined chlorine
    Disinfection processChlorine gas, hypochlorite, electrolysis with diaphragm, electrolysis without diaphragm with electrodes in the process
    InstallationBypass: open outlet or return of the sample water into the process line, inline: direct installation into the tubes with the INLI fitting
    Sensor fittingDLG up to 1 bar/55 °C; DGM up to 6 bar/30 °C; INLI up to 7 bar/40 °C
    Measuring and control equipmentD1Cb, DAC, delta® solenoid-driven diaphragm metering pump
    Typical applicationsSwimming pools, uncontaminated potable water and industrial service water, and can also be used together with diaphragm-free electrolysis processes.Can also be used in conjunction with hydrodynamic cleaning even in contaminated water.
    Resistance tosurfactants
    Measuring principle, technologyAmperometric, 3 electrodes, without diaphragm
    Measuring rangeOrder no.
    CLO 1-mA-2 ppm0.02…2.0 mg/l1033871
    CLO 1-mA-10 ppm0.10…10.0 mg/l1033870

    Sensor for free chlorine CLO 1-CAN-P

    Sensor for the measurement of free chlorine in clear water even when using electrolysis processes for disinfection, up to 45 °C (1 bar) or 8 bar (25 °C). For use on controllers with CAN-bus connection.

    Your benefits

    • Measured variable: free chlorine, no significant cross sensitivity to combined chlorine (chloramines)
    • Use with return of the sample water to the process line
    • Use at higher pressures
    • Minimisation of faults by electrolysis systems in which the electrodes are immersed directly into the sample water (without diaphragm) by open sensor (no diaphragm) and gold electrodes
    • Measurement of free chlorine up to pH 9
    Measured variableFree chlorine
    Reference methodDPD1
    pH range5.0 … 9.0
    Temperature5 … 45 °C
    Max. pressure8.0 bar (25 °C)
    Intake flow30…60 l/h (in DGM or DLG III), constant flow as flow-dependent signal
    Supply voltage11…30 V (via CAN interface)
    Output signal digital (CANopen), uncalibrated, temperature-compensated, galvanically isolated
    SelectivityFree chlorine as against combined chlorine
    Disinfection processChlorine gas, hypochlorite, electrolysis with diaphragm, electrolysis without diaphragm with electrodes in the process
    InstallationBypass: open outlet or return of the sample water into the process line, inline: direct installation into the tubes with the INLI fitting
    Sensor fittingDLG up to 1 bar/55 °C; DGM up to 6 bar/30 °C; INLI up to 7 bar/40 °C
    Measuring and control equipmentDULCOMARIN®
    Typical applicationsSwimming pool,uncontaminated drinking water and process water,and can also be used together with diaphragm-free electrolysis processes.Can also be used in conjunction with hydrodynamic cleaning even in contaminated water.
    Resistance toSalts, acids, alkalis, surfactants, dirt films
    Measuring principle, technologyAmperometric, 3 electrodes, without diaphragm
    Measuring rangeOrder no.
    CLO 1-CAN-P-10 ppm0.10…10.0 mg/l1083134

    Sensor for Free Chlorine CLO 2-mA

    Sensor for the measurement of free chlorine in clear water even when using electrolysis processes for disinfection, up to 70 °C or 8 bar (25 °C). For use with controllers with 4-20 mA input

    Your benefits

    • Measured variable: free chlorine, no significant cross sensitivity to combined chlorine (chloramines)
    • Use with return of the sample water to the process line
    • Use at higher pressures/temperatures
    • Minimisation of faults by electrolysis systems in which the electrodes are immersed directly into the sample water (without diaphragm) by open sensor (no diaphragm) and gold electrodes
    • Measurement of free chlorine up to pH 9
    Measured variablefree chlorine
    Reference methodDPD1
    pH range5.0 … 9.0
    Temperature5 … 70 °C
    Max. pressure8.0 bar (25 °C)
    Intake flow30…60 l/h (in DGM or DLG III), constant flow as flow-dependent signal
    Supply voltage16...24 V DC (2-wire)
    Output signal4…20 mA = Measuring range, temperature-compensated, uncalibrated, not electrically isolated
    SelectivityFree chlorine as against combined chlorine
    Disinfection processChlorine gas, hypochlorite, electrolysis with diaphragm, electrolysis without diaphragm with electrodes in the process
    InstallationBypass: open outlet or return of the sample water into the process line, inline: direct installation into the tubes with the INLI fitting
    Sensor fittingDLG up to 1 bar/55 °C; DGM up to 1 bar/60 °C; INLI up to 2 bar/70 °C. Prerequisite: constant flow
    Measuring and control equipmentD1Cb, DAC, delta® solenoid-driven diaphragm metering pump
    Typical applicationsHot water up to 70 °C, combating legionella, uncontaminated potable water and industrial service water, can also be used together with diaphragm-free electrolysis processes
    Resistance tosurfactants
    Measuring principle, technologyAmperometric, 3 electrodes, without diaphragm
    Measuring rangeOrder no.
    CLO 2-mA-2 ppm0.02…2.0 mg/l1033878

    Sensor for Free Chlorine CLB 2-µA

    Cost-effective, simple sensor for the measurement of free chlorine in clear water, even with a changing media temperature. Use even when electrolysis processes are used for disinfection at up to 45 °C/3 bar. For operation with the Compact controller DCCa

    Your benefits

    • Measured variable: free chlorine, no significant cross sensitivity to combined chlorine (chloramines)
    • Cost-effective due to its simple construction without separate wear parts
    • Simple, cost-effective maintenance without handling of the diaphragm caps
    • Minimisation of faults by electrolysis systems without diaphragm in which the electrodes are immersed directly into the sample water by an open sensor (no diaphragm)
    • Measurement of free chlorine up to pH 9 and use at high pressure of up to 8 bar by the absence of a diaphragm
    Measured variablefree chlorine
    Measuring range0.05 – 5.0 mg/l, can be used for short-term shock chlorination up to 10 mg/l
    Reference methodDPD1
    pH range5.0 … 9.0
    Temperature5 … 45 °C
    Max. pressure3.0 bar
    Intake flow30…60 l/h (in DGMA), constant flow needed as flow-dependent signal
    Supply voltageOnly for compact controllers
    Output signal Non-amplified primary current signal, not temperature-compensated, uncalibrated, not electrically isolated
    Temperature measurementPt 1000, integrated, calculation in the compact controller
    SelectivityFree chlorine as against combined chlorine
    Disinfection processChlorine gas, hypochlorite, electrolysis with diaphragm, electrolysis without diaphragm with electrodes in the process
    InstallationBypass: open sample water outlet, inline: direct installation into the pipework
    Sensor fittingDGM, DLG III
    Electrical connectionFixed cable, 1 m, 6 wires with cable end sleeves
    Measuring and control equipmentCompact controller
    Typical applicationsSwimming pools, potable water, can also be used with membrane-free chlorine production electrolysis processes, even with varying media temperatures
    Resistance tosurfactants
    Measuring principle, technologyAmperometric, 3 electrodes, without diaphragm
    Measuring rangeOrder no.
    CLB 2-µA-5 ppm0.05…5.0 mg/l1038902

    Sensor for Free Chlorine CLB 3-µA

    Cost-effective, simple sensor for the measurement of free chlorine in clear water when the media temperature is constant. Use even when electrolysis processes are used for disinfection at up to 45 °C/3 bar. For operation with the Compact controller DCCa

    Your benefits

    • Measured variable: free chlorine, no significant cross sensitivity to combined chlorine (chloramines)
    • Cost-effective due to its simple construction without separate wear parts
    • Simple, cost-effective maintenance without handling of the diaphragm caps
    • Minimisation of faults by electrolysis systems without diaphragm in which the electrodes are immersed directly into the sample water by an open sensor (no diaphragm)
    • Measurement of free chlorine up to pH 9 and use at high pressure of up to 8 bar by the absence of a diaphragm
    Measured variablefree chlorine
    Measuring range0.05 - 5.0 mg/l: linear, can be used for shock chlorination up to 10.0 mg/l
    Reference methodDPD1
    pH range5.0 … 9.0
    Temperature5 … 45 °C constant temperature needed, as temperature-dependent signal
    Max. pressure3.0 bar
    Intake flow30…60 l/h (in DGMA), constant flow necessary, as flow-dependent signal
    Supply voltageOnly for compact controllers
    Output signal Non-amplified primary current signal, not temperature-compensated, uncalibrated, not electrically isolated
    Temperature measurementNone
    SelectivityFree chlorine as against combined chlorine
    Disinfection processChlorine gas, hypochlorite, electrolysis with diaphragm, electrolysis without diaphragm with electrodes in the process
    InstallationBypass: open sample water outlet, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting)
    Sensor fittingDGM, DLG III
    Electrical connectionFixed cable, 1 m, 4 wires with cable end sleeves
    Measuring and control equipmentCompact controller
    Typical applicationsSwimming pools, potable water, can also be used with membrane-free chlorine production electrolysis processes
    Resistance tosurfactants
    Measuring principle, technologyAmperometric, 3 electrodes, without diaphragm
    Measuring rangeOrder no.
    CLB 3-µA-5 ppm0.05…5.0 mg/l1041696

    Sensor for Free Chlorine CBR 1-mA

    Sensor for free chlorine and bromine in contaminated water, also suitable for high pH values of up to 9.5. For use with controllers with 4-20 mA input

    Your benefits

    • Measured variable: free chlorine as well as free and combined bromine (bromamines)
    • Diaphragm-covered sensor minimises faults caused by changing flow or ingredients in the water
    • Resistance to films of dirt and biofilms by electrolyte with antimicrobial effect and large-pore diaphragm
    • Use at high pH value of up to 9.5 by optimisation of the electrolyte diaphragm system
    Measured variablefree chlorine, free bromine, combined bromine, DBDMH (1,3-dibrom-5,5-dimethyl-hydantoin)
    Reference methodDPD1
    pH-range5 ... 9.5
    Temperature5 … 10 °C
    Max. pressure1.0 bar
    Intake flow30…60 l/h (in DGM, DLG II)
    Supply voltage16...24 V DC (2-wire)
    Output signal4…20 mA = Measuring range, temperature-compensated, uncalibrated, not electrically isolated
    SelectivityFree chlorine as against combined chlorine
    Disinfection processChlorine gas, hypochlorite, electrolysis with diaphragm, bromide + hypochlorite, DBDMH
    InstallationBypass: open sample water outlet
    Sensor fittingDGM, DLG III
    Measuring and control equipmentD1Cb, DAC, delta® solenoid-driven diaphragm metering pump
    Typical applicationsCooling water, process water, waste water, water with higher pH values (stable pH), contaminated swimming pool water.Contaminated swimming pool water. In swimming pools to determine the combined chlorine from the difference: Total chlorine minus free chlorine.Raw water for drinking water treatment.
    Resistance toSalts, acids, alkalis, surfactants, dirt films
    Measuring principle, technologyAmperometric, 2 electrodes, membrane-covered
    Measuring rangeOrder no.
    CBR 1-mA-0,5 ppm0.01…0.5 mg/l…*1038016
    CBR 1-mA-2 ppm0.02…2.0 mg/l…*1038015
    CBR 1-mA-5 ppm0.05…5.0 mg/l…*1052138
    CBR 1-mA-10 ppm0.10…10.0 mg/l…*1038014
    *Measuring range based on chlorine. When measuring bromine, the lower and upper limit of the measuring range are increased by the factor 2.25, therefore for example CBR 1-mA-0.5ppm: 0.02 ...1.1 ppm.

    Sensor for free chlorine CLR 1-mA

    Sensor for free chlorine above 10 ppm in contaminated washing water for use with controllers with 4-20 mA input

    Your benefits

    • Measured variable free chlorine for high concentrations of up to 1,000 ppm
    • Diaphragm-covered sensor prevents faults caused by changing flow or ingredients in the water
    • Resistance to films of dirt by pore-free diaphragm
    Measured variablefree chlorine
    Reference methodDPD1
    pH range5.5 … 8.0
    Temperature5 … 45 °C
    Max. pressure1.0 bar
    Intake flow30…60 l/h (in DGM, DLG II)
    Supply voltage16...24 V DC (2-wire)
    Output signal4…20 mA = Measuring range, temperature-compensated, uncalibrated, not electrically isolated
    SelectivityFree chlorine as against combined chlorine
    Disinfection processChlorine gas, hypochlorite, electrolysis with diaphragm
    InstallationBypass: open sample water outlet
    Sensor fittingDLG III
    Measuring and control equipmentD1Cb, DAC, delta® solenoid-driven diaphragm metering pump
    Typical applicationsSalad, vegetable and poultry washing water, contaminated process and waste water
    Resistance toSalts, acids, alkalis, surfactants, dirt films
    Measuring principle, technologyAmperometric, 2 electrodes, membrane-covered
    Measuring rangeOrder no.
    CLR 1-mA-200 ppm10.0…200 mg/l1047978

    Important note: Measuring range from 10.0 ... 1,000 mg/l on request

    A mounting kit, order no. 815079, is required for initial fitting of the chlorine sensors in the in-line probe housing DLG III.

    Sensor für freies Chlor CBR 1-CAN-P

    Sensor for free chlorine and bromine in contaminated water, also suitable for high pH values of up to 9.5. For use on controllers with CAN-bus connection.

    Your benefits

    • Measured variable: free chlorine as well as free and combined bromine (bromamines)
    • Diaphragm-covered sensor minimises faults caused by changing flow or ingredients in the water
    • Resistance to films of dirt and biofilms by electrolyte with antimicrobial effect and large-pore diaphragm
    • Use at high pH value of up to 9.5 by optimisation of the electrolyte diaphragm system
    Measured variablefree chlorine, free bromine, combined bromine, DBDMH (1,3-dibrom-5,5-dimethyl-hydantoin)
    Reference methodDPD1
    pH-range 5 ... 9.5
    Temperature5 … 45 °C
    Max. pressure1.0 bar
    Intake flow30…60 l/h (in DGM, DLG II)
    Supply voltage11…30 V DC (via CAN interface)
    Output signal digital (CANopen), uncalibrated, temperature-compensated, galvanically isolated
    SelectivityFree chlorine as against combined chlorine
    Disinfection processChlorine gas, hypochlorite, electrolysis with diaphragm, bromide + hypochlorite, DBDMH
    InstallationBypass: open sample water outlet
    Sensor fittingDGM, DLG III
    Measuring and control equipmentD1C, DAC, delta® solenoid-driven metering pump
    Typical applicationsCooling water,process water,waste water,water with higher pH values (stable pH).Contaminated swimming pool water. In swimming pools to determine the combined chlorine from the difference: Total chlorine minus free chlorine.Raw water for drinking water treatment.
    Resistance toDirt films, biofilms, surfactants
    Measuring principle, technologyAmperometric, 2 electrodes, membrane-covered
    Measuring rangeOrder no.
    CBR 1-CAN-P-10ppm1083135

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    Overview

    Reliable online measurement of free (effective) chlorine – with the versatile DULCOTEST® sensors.

    Free chlorine is the most important disinfectant in the world. This term is used to refer to the compounds Cl2 (elementary chlorine), HOCl (hypochlorous acid) and OCl- (hypochlorite).

    Our product line of DULCOTEST® sensors for free chlorine provides five product ranges optimised for different applications. Each product range consists of several types with different measuring ranges.

    The proven diaphragm-covered standard sensor for free chlorine CLE3 is used to monitor or control all types of clear water, for example in the disinfection of potable water. The variant CLE3.1 is especially suitable for an excess of combined chlorine Mono-, di-, trichloroamine. The measuring result of type CLE (free chlorine) is subtracted from the ... more in the glossary, providing the most accurate results in the calculation of combined chlorine Mono-, di-, trichloroamine. The measuring result of type CLE (free chlorine) is subtracted from the ... more in the glossary from the measurement of total chlorine Total of free and combined chlorine. Recommended sensor: Type CTE, reference method DPD4. more in the glossary and free chlorine.

    Sensors CLB2 and CLB3 are easy-to-operate, low-cost chlorine sensors without a diaphragm for clear water without pollution.

    Sensor CLO1 is particularly suitable for in-line electrolysis Chlorine and sodium hydroxide are produced in-situ in electrolysis by passing an electric ... more in the glossary processes where unwanted compounds may be formed; sensor CLO2 is also ideal for hot water disinfection.

    Sensor CBR1 can be used in contaminated water, even for high pH values of up to 9.5, for example in the disinfection of cooling water.

    Sensor CLR1 has been optimised for the disinfection or washing of foodstuffs and tolerates contaminated water and chlorine concentrations of up to 1,000 mg/l.

    Your benefits

    • Five different sensor ranges and numerous different versions deliver the following benefits: Use with a wide range of water qualities (pH, salt content, temperature, chemical and contamination load), use in combination with many disinfection processes: chlorine gas, sodium hypochlorite, calcium hypochlorite, electrolysis, use in a wide measuring range of 0.01 to 1,000 mg/l.
    • Precise, real-time amperometric measurement for efficient process control (short response time)
    • Amperometric measuring means no clouding or discolouration
    • Stable zero point
    • Integrated temperature compensation eliminates faults caused by influence of temperature
    • For sensors with diaphragm-covered measuring electrodes: Reduced dependence on flow, substances in water and film-forming media. Diaphragm-covered measuring electrodes embedded in an electrolyte ensure long service life. This maintains optimum measuring conditions regardless of process conditions. Low-cost maintenance thanks to easy diaphragm cap changes.

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    Contact us

    Ralf Kiermaier

    Vice President Sales and Marketing, ProMinent GmbH

    »Please send us your request! We will contact you shortly.«

    +49 6221 842 0  Send request   

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