OVERVIEW
Monitor Your Bromination Process Easily and Precisely with our Sensors
The membrane-covered, amperometric sensor works on the three-electrode principle; it is used for the online measurement of hypobromous acid (HOBr). The electronic components integrated in the sensors provide a temperature-compensated current signal (4 to 20 mA) or a Modbus RTU output signal.
The disinfectant bromine offers a greater disinfectant effect and higher pH value compared with chlorine compounds, while having a low corrosive effect. Abreacted bromine solutions irritate the mucous membranes to a lesser extent and have a neutral odor.
The membrane-covered, amperometric sensor works on the 3-electrode principle; it is used for online measurement hypobromous acid (HOBr). Suitable bromination methods include free bromine (HOBr) as well as 1-bromine-3-chlorine-5.5-dimethyl-hydantoin (BCDMH).
Depending on the type, the electronics integrated in the sensors provide a temperature-compensated current signal (4 to 20 mA) or a Modbus RTU output signal. A downstream device (indicator, controller, recorder, PLC, etc.) is used for calibration.
The sensor can be connected directly to indicating devices/transmitters/controllers. They supply the sensor with voltage and allow for easy calibration of the measuring system.
The sensor is not suitable for detecting the absence of bromine.
Features
- 3-electrode principle
- Easy calibration
- Integrated temperature compensation
- Proven measuring system
- Electrical connection analog or digital
- Connection to JUMO digiLine system optional
Application
- Measurements in cooling water
- Swimming pool water
- Service water
- Process water
- Seawater
SPECIFICATIONS
Technical Information
Sensor Type
202637/61
(output signal 4 to 20 mA)
202637/71
(digital interface output signal)
Measurand Hypobromous acid (HOBr) Area of application Suitable bromination methods
Disinfection of drinking water, swimming pool water, service water, process water and seawater
free bromine (HOBr)
1-bromine-3-chlorine-5.5-dimethyl-hydantoin (BCDMH)Measuring Principle Membrane-covered, amperometric, potentiostatic three-electrode system with integrated electronics Measuring Cable Connection 2-pin terminal connection (2 × 1 mm2) 5-pin flange connector, M12 Voltage Supply UB DC 12 to 30 V
(galvanic isolation required)UB DC 22.5 to 26 V
(galvanically isolated from the sensor)Electromagnetic compatibilitya Interference emission: class Bb
Interference immunity: to industrial requirementsOutput Signal 4 to 20 mA Modbus RTU Burden/current Consumption ≤ (UB – 7.5 V) ÷ 0.02 A approx. 20 mA Settling Time Approx. 2 h for initial startup Inflow speed Approx. 15 cm/s
(corresponds to a flow of approx. 30 l/h when installed in the JUMO flow fitting (part no.: 00392611))Measuring Rangesc 0.005 to 2 mg/l (ppm)
0.05 to 20 mg/l (ppm)Resolution 0.001 mg/l with measuring range 2 mg/l
0.01 mg/l with measuring range 20 mg/lResponse time t90 approx. 2 minutes Operating temperature
Measurement water
ambience0 to 45 °Cd
0 to 55 °CTemperature compensation Automatic, using integrated temperature probee pH value area of application pH 6.5 to pH 9.5 Zero point adjustment Not required Slope adjustment On evaluation unit/controller using analytical determination Disturbances Cl2: is also measured
ClO2: is also measured
O3: is also measured
Corrosion inhibitors and water hardness stabilizers can lead to measuring errorsAbsence of the disinfectant max. 24 h Pressure resistancef pabs max. 1.5 bar
prel max. 0.5 barMaterials PVC-U, PEEK, stainless steel 1.4571 Dimensions Dia. 25 mm, length 220 mm Dia. 25 mm, length 205 mm Weight Approx. 125 g Maintenance Inspection of the measuring signal
Replacement of membrane cap
Replacement of electrolyte
Regularly, at least once a week
Once a year (depending on the quality of the water)
Every 3 to 6 months
Storage Sensor
Membrane Cap
Electrolyte
Can be stored indefinitely in a dry place, without electrolyte, between +5 and 40 °C
Can be stored indefinitely in the original packaging at +5 to 40 °C.
In original bottle, away from sunlight, for at least one year (or up to minimum best by date) at +5 to 35 °C.C
a EN 61326-1, EN 61326-2-3
b The product is suitable for industrial use as well as for households and small businesses.
c Other measuring ranges upon request.
d Prerequisite: no ice crystals in the measurement medium.
e Prerequisite: no temperature jumps in the measurement medium.
f No pressure fluctuations admissible. Pressure-free operation (atmospheric pressure) recommended.
Jumo tecLine Br – Bromine Sensor
$0.00 ex GST
The membrane-covered, amperometric sensor works on the three-electrode principle; it is used for the online measurement of hypobromous acid (HOBr). The electronic components integrated in the sensors provide a temperature-compensated current signal (4 to 20 mA) or a Modbus RTU output signal.
