The BT6308-CL Total Residual Chlorine Analyzer of Bebur Company adopts a membrane or membrane-free three-electrode system. It is not affected by pH value changes, does not use reagents, has stable performance, can reduce maintenance and save user usage costs.
The BT6308-CL Total Residual Chlorine Analyzer of Bebur Company adopts a membrane or membrane-free three-electrode system. It is not affected by pH value changes, does not use reagents, has stable performance, can reduce maintenance and save user usage costs.

Typical Applications
The BT6308-CL Total Residual Chlorine Analyzer is applicable to residual chlorine disinfection monitoring in the drinking water, sewage, industrial process water and pure water industries, such as:
?Online analysis of Residual Chlorine Disinfection in Municipal Tap water
?Chlorine replenishment control for secondary pressurized water supply in the pipeline network
?Disinfectant control of circulating cooling water
?Chlorination disinfection control of water used in food factories and beverage factories
Performance characteristics
?Sensors based on membrane or membrane-free amperometric principles are adopted
?Stable performance and accurate measurement
?No reagents or buffers are required
?It is not affected by the cleaning agents in water
?No zero-point calibration is required
?A 6-month maintenance-free period
?A three-month no-bid period
Working principle
The sensor measures samples using the principle of membrane or membrane-free amperometry. The microporous hydrophobic membrane on the sensor allows residual chlorine (HCLO and CLO- ions) or total chlorine (HCLO,CLO- ions and bound chlorine) to enter the sensor. Inside the sensor, this process converts most of the CLO- ions into HCLO, which is consumed at the gold working electrode to obtain a value of mg/L or ppm.
Technical parameters
Type | Residual chlorine | Zero residual chlorine | No residual chlorine in the membrane | Total chlorine |
Sensor model | BWCS4 | BWCN1.1 | BWCCF1.0N | BWCP4.0 |
Range (ppm) | 0.01-2,0.01-5,0.01-10,0.01-20,0.5-200 | 0.005-2,0.05-20 | 0.05-10 | 0.05-0.5,0.01-2,0.01-5,0.01-10,0.01-20 |
Resolution | 0.01 | 0.001 | 0.01 | 0.01 |
Stability | -1% per month | -3% per month | -1% per month | -1% per month |
Working electrode | gold | gold | gold | gold |
Reverse electrode | Stainless steel | Stainless steel | Stainless steel | Stainless steel |
Reference electrode | Silver/Silver halide | Silver/Silver halide | Silver/Silver halide | Silver/Silver halide |
Membrane material | Microporous hydrophilic membrane | Microporous hydrophilic membrane | _ | Microporous hydrophilic membrane |
quantity of flow | Approximately 500ml/min | Approximately 500ml/min | Approximately 500ml/min | Approximately 500ml/min |
Temperature range | 0-45°C | 0-40°C | 0-45°C | 0-45°C |
Temperature compensation | It is automatically completed by an integrated thermistor | It is automatically completed by an integrated thermistor | It is automatically completed by an integrated thermistor | It is automatically completed by an integrated thermistor |
pH value range | pH4-9 | pH6.5-9 | pH6-9 | pH4-12 |
First polarization time | About 2 hours | About 2 hours | About 15 minutes | About 2 hours |
Repolarization time | About 30 minutes | About 30 minutes | About 15 minutes | About 30 minutes |
Response time | The T90 lasts approximately 120 seconds | The T90 lasts approximately 120 seconds | The T90 lasts approximately 20 seconds | The T90 lasts approximately 180 seconds |
Zero-point calibration | No need | No need | No need | No need |
Calibration | Calibrate using DPD | Calibrate using DPD | Calibrate using DPD | Calibrate using DPD |
Material | PVC-U, stainless steel, microporous hydrophilic film, silicone | PVC-U, stainless steel, microporous hydrophilic membrane, silicone, PEEK | PVC-U | PVC-U, stainless steel, microporous hydrophilic membrane, silicone, PEEK |
Overall dimensions | Diameter: 25mm, length: 190mm | Diameter: 25mm, length: 195mm | Diameter: 25mm, length: 131mm | Diameter: 25mm, length: 190mm |
Interference | CLO2,O3 | CLO2,O3,Reducing agent | CLO2,O3 | CLO2,O3 |