Bromine gas sensor BR1

electrochemicalfor water treatmentfor process measurement

Product overview
The German-made BR1 bromine sensor is an amperometric potentiostatic 3-electrode device with a microporous membrane. It measures free bromine (HOBr) and BCDMH and is designed for drinking water, swimming pool water, service water, process water and seawater. The sensor offers automatic temperature compensation, several output configurations, IP65/IP68 protection options and does not require zero-point adjustment. Calibration can be performed using DPD1/DPD4 methods. EMC-tested and RoHS-compliant, the BR1 requires weekly signal checks and scheduled maintenance to ensure long-term stability.

Special features

• Reduced dependence on pH
• Tolerant to surfactants
• No cross-sensitivity to chlorine dioxide, chlorine or chlorate
• Automatic temperature compensation (integrated temperature sensor)
• No zero-point adjustment required
• EMC-tested and RoHS-compliant

Applications

• Drinking water
• Swimming pool water
• Service water
• Process water
• Seawater

Process conditions

• Max. measuring water temperature: 45 °C (no ice crystals in the measuring water)
• Ambient temperature: 0 ... +55 °C
• Max. allowed working pressure: operation with retaining ring in FLC: -0.5 bar; avoid pressure impulses and vibrations
• Flow rate (face velocity): approx. 15–30 L/h in flow cell
• pH range: pH 6.5 – pH 9.5 (strongly reduced dependence on pH)

Technical specifications

• Measurement parameter: Bromine
• Measuring ranges / resolution: 0.005–2.000 ppm: 0.001 ppm; 0.05–5.00 ppm: 0.01 ppm; 0.05–10.00 ppm: 0.01 ppm; 0.05–20.00 ppm: 0.01 ppm
• Response time: T90 approx. 2 min
• Measuring water temperature: 0 ... +45 °C
• Ambient temperature: 0 ... +55 °C
• Temperature compensation: Automatic via integrated temperature sensor; max. change in temperature: 0.3 °C per minute (avoid sudden changes)
• Run-in time: First start-up approx. 2 h
• Zero point adjustment: Not necessary
• Protection class: 5-pole M12 plug-on flange: IP68; 2-pole terminal with mA-hood: IP65
• Material: Microporous hydrophilic membrane, PVC, PEEK, stainless steel 1.4571