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DULCOTEST® Sensors for Bromine

Graduated measuring ranges 0.01 – 10 mg/l

Bromine measurement with DULCOTEST® sensors: safe metering in disinfection processes with bromine. The robustness of the sensors makes them suitable for a very wide range of water qualities.

Product description

Reliable online measurement of bromine – with DULCOTEST® sensors

Bromine compounds are an increasingly popular alternative to chlorine compounds in water disinfection in spite of the higher costs of the reagents.

Bromine has a number of advantages over chlorine compounds when it comes to disinfection:

  • Greater disinfectant effect at higher pH values
  • Lower volatility at higher temperatures
  • Less tendency to corrosion
  • Bromine compounds that have finished reacting (combined bromine) produce less odour and irritation of the mucous membranes

Our product line of DULCOTEST® bromine sensors provides three types of sensor for your measurement tasks.

Sensor types CBR1-mA and BCR 1-mA are resistant to contaminated water and are designed for the treatment of cooling water. Type CBR1 is specifically designed for free bromine from inorganic bromination processes, e.g. sodium bromide + sodium-calcium hypochlorite, or the use of BrCl.

Sensor type BCR-mA is optimised for the measurement of organic bromination agents (e.g. BCDMH).

Sensor type BRE3-CAN is available for the treatment of swimming pool water with BCDMH

Your benefits

  • Precise, real-time amperometric measurement for efficient process control (short response time).
  • Suitable for a very wide range of water qualities (contamination, pH, salinity, temperature).
  • Amperometric measuring eliminates interference caused by turbidity or colouration.
  • Stable zero point means no drift.
  • Integrated temperature compensation eliminates interference caused by influence of temperature.
  • Diaphragm-covered electrodes for reduced dependence on flow, substances in water and film-forming media.

Field of application

  • Water disinfection in cooling towers
  • Water disinfection in swimming pools and hot tubs
  • Disinfection of seawater

    Technical Details

    Measurement of all common bromine reagents used for disinfection possible:

    • inorganic free bromine, e.g. using the ACTI bromine process: HOBr, or inorganically bound bromine (proprietary names include Stabrex®)
    • DBDMH (1,3-dibromo-5,5-dimethylhydantoin), proprietary names include Albrom 100®
    • BCDMH (1-bromo-3-chloro-5,5-dimethylhydantoin), proprietary names include Brom-Sticks®

    Sensor for Total Available Bromine BCR 1-mA (Replaces Earlier Type BRE 1)

    Sensor for the disinfectant BCDMH and other oxidative-acting bromine-organic disinfectants and total chlorine even in contaminated water and/or for high pH values of up to 9.5. For use on controllers with mA input

    Your benefits

    • Measured variable: total available bromine from BCDMH (1-bromo-3-chloro-5,5-dimethylhydantoin)
    • Diaphragm-covered sensor minimises faults caused by changing flow or ingredients in the water, N-bromamide sulfonate
    • Resistance to blocking is achieved by the use of an electrolyte with an antimicrobial effect (less blocking by biofilms) and by a large-pored diaphragm (less blocking by solid particles/dirt)
    • Use with high pH values by optimisation of the electrolyte diaphragm system

    Measured variable

    Total available bromine from BCDMH (1-bromo-3-chloro-5,5-dimethylhydantoin) and N-bromamido-sulphonate, total chlorine

    Reference method

    DPD4

    pH-range

    5.0…9.5

    Temperature

    5…45 °C

    Max. pressure

    1.0 bar

    Flow

    DGMa, DLG III: 60...80 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

    Non-selective, cross-sensitive towards many oxidation agents

    Disinfection process

    BCDMH (1-bromo-3-chloro-5,5-dimethyl-hydantoin), N-bromamide sulfonate

    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, swimming pool water, water with higher pH values (stable pH).

    Resistance to

    Dirt films, biofilms, surfactants

    Measuring principle, technology

    Amperometric, 2 electrodes, diaphragm-covered

    Measuring range

    Order no.

    BCR 1-mA-0.5 ppm

    0.01…0.5 mg/l

    1041697

    BCR 1-mA-2 ppm

    0.02…2.0 mg/l

    1040115

    BCR 1-mA-10 ppm

    0.10…10.0 mg/l

    1041698

    Sensor for Total Available Bromine BRE 3-CAN-P

    Sensor for free and combined bromine, also for use with slightly contaminated water. For use on controllers with CAN-bus connection

    Your benefits

    • Measured variable: total available bromine from BCDMH and other oxidative-acting bromine organic disinfectants
    • Diaphragm-covered sensor minimises faults caused by changing flow or ingredients in the water
    • Use with high pH values by optimisation of the electrolyte diaphragm system
    • Operation on the CAN-bus with all the associated benefits

    Measured variable

    Total available bromine

    Reference method

    For DBDMH, free bromine: DPD1. For BCDMH: DPD4

    pH dependence

    If the pH changes from pH 7 to pH 8, the sensor sensitivity changes
    a) for DBDMH and free bromine by around 10 %
    b) for BCDMH by around 25 %

    Temperature

    5…45 °C

    Max. pressure

    3.0 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

    Non-selective, cross-sensitive towards many oxidation agents

    Disinfection process

    DBDMH (1,3-dibromo-5,5-dimethyl-hydantoin), BCDMH (1-bromo-3-chloro-5,5-dimethyl-hydantoin), free bromine (HOBr, OBr-)

    Process integration

    Bypass: open sample water outlet

    Sensor fitting

    BAMa, DGMa, DLG III

    Controllers

    DULCOMARIN®

    Typical applications

    swimming pools/whirlpools.

    Resistance to

    surfactants

    Measuring principle, technology

    Amperometric, 2 electrodes, diaphragm-covered

    Measuring range

    Order no.

    BRE 3-CAN-10 ppm

    0.02…10.0 mg/l

    1083573

    Note: a mounting kit (order no. 815079) is required for initial fitting of the bromine sensors in the in-line probe housing DLG III.

    Sensor for Free and Combined Bromine CBR 1-mA (Replaces Earlier Type BRE 2)

    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

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    Overview

    Reliable online measurement of bromine – with DULCOTEST® sensors

    Bromine compounds are an increasingly popular alternative to chlorine compounds in water disinfection in spite of the higher costs of the reagents.

    Bromine has a number of advantages over chlorine compounds when it comes to disinfection:

    • Greater disinfectant effect at higher pH values
    • Lower volatility at higher temperatures
    • Less tendency to corrosion
    • Bromine compounds that have finished reacting (combined bromine) produce less odour and irritation of the mucous membranes

    Our product line of DULCOTEST® bromine sensors provides three types of sensor for your measurement tasks.

    Sensor types CBR1-mA and BCR 1-mA are resistant to contaminated water and are designed for the treatment of cooling water. Type CBR1 is specifically designed for free bromine from inorganic bromination processes, e.g. sodium bromide + sodium-calcium hypochlorite, or the use of BrCl.

    Sensor type BCR-mA is optimised for the measurement of organic bromination agents (e.g. BCDMH).

    Sensor type BRE3-CAN is available for the treatment of swimming pool water with BCDMH

    Your benefits

    • Precise, real-time amperometric measurement for efficient process control (short response time).
    • Suitable for a very wide range of water qualities (contamination, pH, salinity, temperature).
    • Amperometric measuring eliminates interference caused by turbidity or colouration.
    • Stable zero point means no drift.
    • Integrated temperature compensation eliminates interference caused by influence of temperature.
    • Diaphragm-covered electrodes for reduced dependence on flow, substances in water and film-forming media.

    Application

    Technical Data

    Downloads

    Contact us

    ProMinent Fluid Controls Ltd.


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