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.

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:

  • More effective disinfection 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 BCR1-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 hypochlorite, or the use of BrCl.

Sensor type BCR1-mA is optimised for the measurement of organic bromination agents (e.g. BCDMH).

Sensor type BRE3-CAN is available for the measuring and control system DULCOMARIN for treating 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.

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, AEGIS S, diaLog X, DULCOPOOL Pro
Typical applications Cooling water, process water, wastewater, 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

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-range 5.0…9.5
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 3, DULCOMARIN II only with hardware after 06/02/2014 from software version 3035 or later
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 1029660

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 5.0…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, AEGIS S, diaLog X
Typical applications Cooling water, process water, waste water, water with higher pH values (stable pH), contaminated swimming pool water. 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 chlorine CBR 1-CAN

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 5.0…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. 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-10 ppm 0.01…10.0 mg/l 1122056