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DULCOTEST® Sensors for Free Chlorine

Graduated measuring ranges 0.01 – 200 mg/l, special measuring range up to 1,000 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, salinity, 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 eliminates interference caused by turbidity or colouration
  • Stable zero point
  • Integrated temperature compensation eliminates interference 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 substances in the water

    Measured variable

    Free chlorine with a pH value < 8

    Reference method

    DPD1

    pH-range

    5.5…8.0

    Temperature

    5…45 °C

    Max. pressure

    1.0 bar

    Flow

    DGMa, DLG III: 30...60 l/h
    BAMa: 5...100 l/h (depending on design)

    Supply voltage

    16...24 V DC (2-wire)

    Output signal

    4-20 mA ≈ measuring range, temperature-compensated, uncalibrated, not electrically isolated

    Selectivity

    Free chlorine as against combined chlorine, even if there is not an excess of it

    Disinfection process

    Chlorine gas, hypochlorite, electrolysis with diaphragm, disinfectants with organic chlorine, e. g. based on cyanuric acid, are unsuitable

    Process integration

    Bypass: open sample water outlet

    Sensor fitting

    BAMa, DGMa, DLG III

    Controllers

    D1C, DAC, AEGIS II

    Typical applications

    CLE 3-mA-0,5 ppm: potable water; CLE 3-mA-2.0/10 ppm: swimming pools (surfactant-free).

    Resistance to

    Salts, acids, alkalis. Not surfactants

    Measuring principle, technology

    Amperometric, 2 electrodes, diaphragm-covered

    Measuring range

    Order no.

    CLE 3-mA-0.5 ppm

    0.01…0.5 mg/l

    792927

    CLE 3-mA-2 ppm

    0.02…2.0 mg/l

    792920

    CLE 3-mA-5 ppm

    0.05…5.0 mg/l

    1033392

    CLE 3-mA-10 ppm

    0.10…10.0 mg/l

    792919

    CLE 3-mA-20 ppm

    0.20…20.0 mg/l

    1002964

    CLE 3-mA-50 ppm

    0.50…50.0 mg/l

    1020531

    CLE 3-mA-100 ppm

    1.00…100.0 mg/l

    1022786

    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 substances in the water

    Measured variable

    Free 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 method

    DPD1

    pH-range

    5.5…8.0

    Temperature

    5…45 °C

    Max. pressure

    1.0 bar

    Flow

    DGMa, DLG III: 30...60 l/h
    BAMa: 5...100 l/h (depending on design)

    Supply voltage

    16...24 V DC (2-wire)

    Output signal

    4-20 mA ≈ measuring range, temperature-compensated, uncalibrated, not electrically isolated

    Selectivity

    Free chlorine as against combined chlorine, even if there is an excess of it

    Disinfection process

    Chlorine gas, hypochlorite, electrolysis with diaphragm, disinfectants with organic chlorine, e. g. based on cyanuric acid, are unsuitable

    Process integration

    Bypass: open sample water outlet

    Sensor fitting

    BAMa, DGMa, DLG III

    Controllers

    D1C

    Typical applications

    Potable water with higher volumes of combined chlorine, swimming pools. To determine the combined chlorine from the difference: Total chlorine minus free chlorine in the controller DAC.

    Resistance to

    Salts, acids, alkalis. Not surfactants

    Measuring principle, technology

    Amperometric, 2 electrodes, diaphragm-covered

    Measuring range

    Order no.

    CLE 3.1-mA-0.5 ppm

    0.01…0.5 mg/l

    1020530

    CLE 3.1-mA-2 ppm

    0.02…2.0 mg/l

    1018369

    CLE 3.1-mA-5 ppm

    0.05…5.0 mg/l

    1019398

    CLE 3.1-mA-10 ppm

    0.10…10.0 mg/l

    1018368

    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 substances in the water

    Measured variable

    free chlorine

    Reference method

    DPD1

    pH-range

    5.5…8.0

    Temperature

    5…45 °C

    Max. pressure

    1.0 bar

    Flow

    DGMa, DLG III: 30...60 l/h
    BAMa: 5...100 l/h (depending on design)

    Supply voltage

    3.3 V DC (5 P)

    Output signal

    0…1 V DC, uncalibrated, not temperature-compensated, not electrically isolated

    Temperature measurement

    About the integrated Pt 1000. The temperature compensation is carried out in DMT.

    Selectivity

    Free chlorine as against combined chlorine, even if there is not an excess of it

    Disinfection process

    Chlorine gas, hypochlorite, electrolysis with diaphragm, disinfectants with organic chlorine, e. g. based on cyanuric acid, are unsuitable

    Process integration

    Bypass: open sample water outlet

    Sensor fitting

    BAMa, DGMa, DLG III

    Controllers

    DMT

    Typical applications

    CLE 3-mA-0,5 ppm: potable water; CLE 3-mA-2.0/10 ppm: swimming pools (surfactant-free).

    Resistance to

    Salts, acids, alkalis. Not surfactants

    Measuring principle, technology

    Amperometric, 2 electrodes, diaphragm-covered

    Measuring range

    Order no.

    CLE 3-DMT-5 ppm

    0.01…5.0 mg/l

    1005511

    CLE 3-DMT-50 ppm

    0.10…50.0 mg/l

    1005512

    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 substances in the water
    • Operation on the CAN-bus with all the associated benefits

    Measured variable

    free chlorine

    Reference method

    DPD1

    pH-range

    5.5…8.0

    Temperature

    5…45 °C

    Max. pressure

    1.0 bar

    Flow

    DGMa, DLG III: 30...60 l/h
    BAMa: 5...100 l/h (depending on design)

    Supply voltage

    Via CAN-interface (11 – 30 V)

    Output signal

    Uncalibrated, temperature compensated, electrically isolated

    Selectivity

    Free chlorine as against combined chlorine, even if there is not an excess of it

    Disinfection process

    Chlorine gas, hypochlorite, electrolysis with diaphragm, disinfectants with organic chlorine, e. g. based on cyanuric acid, are unsuitable

    Process integration

    Bypass: open sample water outlet

    Sensor fitting

    BAMa, DGMa, DLG III

    Controllers

    DULCOMARIN®

    Typical applications

    CLE 3-mA-0,5 ppm: potable water; CLE 3-mA-2.0/10 ppm: swimming pools (surfactant-free).

    Resistance to

    Salts, acids, alkalis. Not surfactants

    Measuring principle, technology

    Amperometric, 2 electrodes, diaphragm-covered

    Measuring range

    Order no.

    CLE 3-CAN-P-10 ppm

    0.01…10.0 mg/l

    1083209

    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 substances in the water
    • Operation on the CAN-bus with all the associated benefits

    Measured variable

    Free chlorine with high levels of combined chlorine; for determining the combined chlorine with a DULCOMARIN® and sensor for total chlorine type CTE 1- CAN 1-CAN

    Reference method

    DPD1

    pH-range

    5.5…8.0

    Temperature

    5…45 °C

    Max. pressure

    1.0 bar

    Flow

    DGMa, DLG III: 30...60 l/h
    BAMa: 5...100 l/h (depending on design)

    Supply voltage

    Via CAN-interface (11 – 30 V)

    Output signal

    Uncalibrated, temperature compensated, electrically isolated

    Selectivity

    free chlorine

    Disinfection process

    Chlorine gas, hypochlorite, electrolysis with diaphragm, disinfectants with organic chlorine, e. g. based on cyanuric acid, are unsuitable

    Process integration

    Bypass: open sample water outlet

    Sensor fitting

    BAMa, DGMa, DLG III

    Controllers

    DULCOMARIN®

    Typical applications

    Potable 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 to

    Salts, acids, alkalis. Not surfactants

    Measuring principle, technology

    Amperometric, 2 electrodes, diaphragm-covered

    Measuring range

    Order no.

    CLE 3.1-CAN-P-10 ppm

    0.01…10.0 mg/l

    1083584

    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 operation with controllers with 4-20 mA input. Also suitable for use in film-forming water with optional “hydrodynamic cleaning”.

    Your benefits

    • Measured variable: free chlorine, no significant cross-sensitivity to combined chlorine (chloramines)
    • Use when sample water is returned 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 an open sensor (no diaphragm) and gold electrodes
    • Measurement of free chlorine up to pH 9
    • Also suitable for use in film-forming water with optional "hydrodynamic cleaning".

    Measured variable

    free chlorine

    Reference method

    DPD1

    pH-range

    5.0…9.0

    Temperature

    5…45 °C

    Max. pressure

    8.0 bar (25 °C)

    Flow

    DGMa, DLG III: 30...60 l/h
    BAMa: 5...100 l/h (depending on design)

    Supply voltage

    16...24 V DC (2-wire)

    Output signal

    4-20 mA ≈ measuring range, temperature-compensated, uncalibrated, not electrically isolated

    Selectivity

    Free chlorine as against combined chlorine

    Disinfection process

    Chlorine gas, hypochlorite, electrolysis with diaphragm, electrolysis without diaphragm with electrodes in the process

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the tubes with the INLI fitting

    Sensor fitting

    BAMa: up to 7 bar/20 °C
    DGMa up to 6 bar/30 °C
    DLG III up to 1 bar/55 °C
    INLI up to 7 bar/40 °C

    Controllers

    D1C, DAC, AEGIS II

    Typical applications

    Swimming pools, uncontaminated potable 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 biofilm-forming water, or water containing lime, iron or manganese.

    Resistance to

    Surfactants, films with using hydrodynamic cleaning

    Measuring principle, technology

    Amperometric, 3 electrodes, no diaphragm

    Measuring range

    Order no.

    CLO 1-mA-2 ppm

    0.02…2.0 mg/l

    1033871

    CLO 1-mA-10 ppm

    0.10…10.0 mg/l

    1033870

    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. Also suitable for use in film-forming water with optional “hydrodynamic cleaning”.

    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
    • Also suitable for use in film-forming water with optional “hydrodynamic cleaning”.

    Measured variable

    Free chlorine

    Reference method

    DPD1

    pH-range

    5.0…9.0

    Temperature

    5…45 °C

    Max. pressure

    8.0 bar (25 °C)

    Flow

    DGMa, DLG III: 30...60 l/h
    BAMa: 5...100 l/h (depending on design)

    Supply voltage

    11…30 V (via CAN interface)

    Output signal

    Digital (CANopen), uncalibrated, temperature-compensated, electrically isolated

    Selectivity

    Free chlorine as against combined chlorine

    Disinfection process

    Chlorine gas, hypochlorite, electrolysis with diaphragm, electrolysis without diaphragm with electrodes in the process

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the tubes with the INLI fitting

    Sensor fitting

    BAMa: up to 7 bar/20 °C
    DGMa up to 6 bar/30 °C
    DLG III up to 1 bar/55 °C
    INLI up to 7 bar/40 °C

    Controllers

    DULCOMARIN® 3, DULCOMARIN® II only with hardware after 06.02.2014 from software version 3035 or later

    Typical applications

    Swimming pools, uncontaminated potable 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 water that forms biofilms, or containing lime, iron or manganese.

    Resistance to

    Salts, acids, lyes, surfactants, films of dirt, films when using hydrodynamic cleaning

    Measuring principle, technology

    Amperometric, 3 electrodes, no diaphragm

    Measuring range

    Order no.

    CLO 1-CAN-P-10 ppm

    0.10…10.0 mg/l

    1083134

    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 operation with controllers with 4-20 mA input. Also suitable for use in film-forming water with optional “hydrodynamic cleaning”.

    Your benefits

    • Measured variable: free chlorine, no significant cross-sensitivity to combined chlorine (chloramines)
    • Use when sample water is returned 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 an open sensor (no diaphragm) and gold electrodes
    • Measurement of free chlorine up to pH 9
    • Also suitable for use in film-forming water with optional "hydrodynamic cleaning"

    Measured variable

    Free chlorine

    Reference method

    DPD1

    pH-range

    5.0…9.0

    Temperature

    5…70 °C

    Max. pressure

    8.0 bar (25 °C)

    Flow

    DGMa, DLG III: 30...60 l/h
    BAMa: 5...100 l/h (depending on design)

    Supply voltage

    16...24 V DC (2-wire)

    Output signal

    4-20 mA ≈ measuring range, temperature-compensated, uncalibrated, not electrically isolated

    Selectivity

    Free chlorine as against combined chlorine

    Disinfection process

    Chlorine gas, hypochlorite, electrolysis with diaphragm, electrolysis without diaphragm with electrodes in the process

    Process integration

    Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the tubes with the INLI fitting

    Sensor fitting

    BAMa: up to 3 bar/70 °C
    DGMa up to 1 bar/60 °C
    DLG III up to 1 bar/55 °C
    INLI up to 2 bar/70 °C

    Controllers

    D1C, DAC, AEGIS II

    Typical applications

    Hot 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 to

    Surfactants, films with using hydrodynamic cleaning

    Measuring principle, technology

    Amperometric, 3 electrodes, no diaphragm

    Measuring range

    Order no.

    CLO 2-mA-2 ppm

    0.02…2.0 mg/l

    1033878

    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 variable

    free chlorine

    Measuring range

    0.05 – 5.0 mg/l, can be used for short-term shock chlorination up to 10 mg/l

    Reference method

    DPD1

    pH-range

    5.0…9.0

    Temperature

    5…45 °C

    Max. pressure

    3.0 bar

    Flow

    DGMa, DLG III: 60...80 l/h
    BAMa: 5...100 l/h (depending on design)

    Supply voltage

    Only for compact controllers

    Output signal

    Non-amplified primary current signal, not temperature-compensated, uncalibrated, not electrically isolated

    Selectivity

    Free chlorine as against combined chlorine

    Disinfection process

    Chlorine gas, hypochlorite, electrolysis with diaphragm, electrolysis without diaphragm with electrodes in the process

    Process integration

    Bypass: open sample water outlet, inline: direct installation into the pipework

    Sensor fitting

    BAMa, DGMa, DLG III

    Controllers

    Compact controller

    Typical applications

    Swimming pools, potable water, can also be used with membrane-free chlorine production electrolysis processes, even with varying media temperatures.

    Resistance to

    surfactants

    Measuring principle, technology

    Amperometric, 3 electrodes, no diaphragm

    Measuring range

    Order no.

    CLB 2-µA-5 ppm

    0.05…5.0 mg/l

    1038902

    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 thanks to the absence of a diaphragm
    • Suitable for sea water

    Measured variable

    free chlorine

    Measuring range

    0.05 - 5.0 mg/l: linear, can be used for shock chlorination up to 10.0 mg/l

    Reference method

    DPD1

    pH-range

    5.0…9.0

    Electrolytic conductivity

    0.05...50 mS/cm

    Temperature

    5…45 °C

    Max. pressure

    3.0 bar

    Flow

    DGMa, DLG III: 60...80 l/h
    BAMa: 5...100 l/h (depending on design)

    Supply voltage

    Only for compact controllers

    Output signal

    Non-amplified primary current signal, not temperature-compensated, uncalibrated, not electrically isolated

    Temperature measurement

    None

    Selectivity

    Free chlorine as against combined chlorine

    Disinfection process

    Chlorine gas, hypochlorite, electrolysis with diaphragm, electrolysis without diaphragm with electrodes in the process

    Process integration

    Bypass: open sample water outlet, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting)

    Sensor fitting

    BAMa, DGMa, DLG III

    Electrical Connection

    Fixed cable, 1 m, 4 wires with cable end sleeves

    Controllers

    Compact controller

    Typical applications

    Swimming pools, potable water, sea water; also suitable for use with diaphragm-free electrolysis processes for chlorine generation.

    Resistance to

    surfactants

    Measuring principle, technology

    Amperometric, 3 electrodes, no diaphragm

    Measuring range

    Order no.

    CLB 3-µA-5 ppm

    0.05…5.0 mg/l

    1104626

    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 variable

    free chlorine, free bromine, combined bromine, DBDMH (1,3-dibrom-5,5-dimethyl-hydantoin)

    Reference method

    DPD1

    pH-range

    5…9.5

    Temperature

    1…40 °C

    Max. pressure

    1.0 bar

    Flow

    DGMa: 20...80 l/h
    DLG III: 40...100 l/h
    BAMa: 5...100 l/h (depending on design)

    Supply voltage

    16...24 V DC (2-wire)

    Output signal

    4-20 mA ≈ measuring range, temperature-compensated, uncalibrated, not electrically isolated

    Selectivity

    Free chlorine as against combined chlorine

    Disinfection process

    Chlorine gas, hypochlorite, electrolysis with diaphragm, bromide + hypochlorite, DBDMH

    Process integration

    Bypass: open sample water outlet

    Sensor fitting

    BAMa, DGMa, DLG III

    Controllers

    D1C, DAC, AEGIS II

    Typical applications

    Cooling 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 to

    Salts, acids, alkalis, surfactants, dirt films

    Measuring principle, technology

    Amperometric, 2 electrodes, diaphragm-covered

    Measuring range

    Order no.

    * 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.

    CBR 1-mA-0.5 ppm

    0.01…0.5 mg/l *

    1038016

    CBR 1-mA-2 ppm

    0.02…2.0 mg/l *

    1038015

    CBR 1-mA-5 ppm

    0.05…5.0 mg/l *

    1052138

    CBR 1-mA-10 ppm

    0.10…10.0 mg/l *

    1038014

    Sensor for Free and Combined Bromine 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 variable

    free chlorine, free bromine, combined bromine, DBDMH (1,3-dibrom-5,5-dimethyl-hydantoin)

    Reference method

    DPD1

    pH-range

    5…9.5

    Temperature

    1…40 °C

    Max. pressure

    1.0 bar

    Flow

    DGMa: 20...80 l/h
    DLG III: 40...100 l/h
    BAMa: 5...100 l/h (depending on design)

    Supply voltage

    11…30 V DC (via CAN interface)

    Output signal

    Digital (CANopen), uncalibrated, temperature-compensated, electrically isolated

    Selectivity

    Free chlorine as against combined chlorine

    Disinfection process

    Chlorine gas, hypochlorite, electrolysis with diaphragm, bromide + hypochlorite, DBDMH

    Process integration

    Bypass: open sample water outlet

    Sensor fitting

    BAMa, DGMa, DLG III

    Controllers

    DULCOMARIN® 3, DULCOMARIN® II only with hardware after 06.02.2014 from software version 3035 or later

    Typical applications

    Cooling 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 to

    Dirt films, biofilms, surfactants

    Measuring principle, technology

    Amperometric, 2 electrodes, diaphragm-covered

    Measuring range

    Order no.

    CBR 1-CAN-P-10ppm

    0.01…10.0 mg/l

    1083135

    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 variable

    free chlorine

    Reference method

    DPD1

    pH-range

    5.5…8.0

    Temperature

    5…45 °C

    Max. pressure

    1.0 bar

    Flow

    DGMa, DLG III: 40...60 l/h
    BAMa: 5...100 l/h (depending on design)

    Supply voltage

    16...24 V DC (2-wire)

    Output signal

    4-20 mA ≈ measuring range, temperature-compensated, uncalibrated, not electrically isolated

    Selectivity

    Free chlorine as against combined chlorine

    Disinfection process

    Chlorine gas, hypochlorite, electrolysis with diaphragm

    Process integration

    Bypass: open sample water outlet

    Sensor fitting

    BAMa, DGMa, DLG III

    Controllers

    D1C

    Typical applications

    Salad, vegetable and poultry washing water, contaminated process and waste water.

    Resistance to

    Salts, acids, alkalis, surfactants, dirt films

    Measuring principle, technology

    Amperometric, 2 electrodes, diaphragm-covered

    Measuring range

    Order no.

    CLR 1-mA-200 ppm

    10.0…200 mg/l

    1047978

    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.

    Downloads for DULCOTEST® Sensors for Free Chlorine

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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, salinity, 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 eliminates interference caused by turbidity or colouration
    • Stable zero point
    • Integrated temperature compensation eliminates interference 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

    Wesley Sutton

    Managing Director, ProMinent Fluid Controls UK Ltd.

    »We are always available to help. Don't hesitate to contact us.«

    +44 1530 560 555  Send request   

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