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Free Chlorine Sensor-Polarographic residual chlorine sensor YLG-2058-01
AddTime：2016-12-02 16:50:46 Views: 0
Working principle
Electrolyte and osmotic membrane separates the electrolytic cell and water samples, permeable membranes can selectively to ClO- penetration; between the two electrode has a fixed potential difference, current intensity generated can be converted into residual chlorine concentration;
At the cathode: ClO- + 2H+ + 2e- → Cl-+ H2O
At the anode: Cl- + Ag → AgCl + e-
Because in a certain temperature and pH conditions, HOCl, ClO- and residual chlorine between fixed conversion relationship, in this way can measure the residual chlorine.
Technical Indexes
Electrolyte and osmotic membrane separates the electrolytic cell and water samples, permeable membranes can selectively to ClO- penetration; between the two electrode has a fixed potential difference, current intensity generated can be converted into residual chlorine concentration;
At the cathode: ClO- + 2H+ + 2e- → Cl-+ H2O
At the anode: Cl- + Ag → AgCl + e-
Because in a certain temperature and pH conditions, HOCl, ClO- and residual chlorine between fixed conversion relationship, in this way can measure the residual chlorine.
Technical Indexes
| Measuring range:0.005 ~ 20ppm(mg/L) HOCl |
| The minimum detection limit:5ppb or 0.05mg/L HOCl |
| Accuracy:2% or ±10ppb |
| HOCl response time:90%<90second |
| Storage temperature:-20 ~ 60 ℃ |
| Operation temperature:0~45℃ |
| Sample temperature:0~45℃ |
| Calibration method:laboratory comparison method |
| Calibration interval:1/2 month |
| Maintenance interval:Replacement of a membrane and electrolyte every six months |
| The connection tubes for inlet and outlet water:external diameter Φ10 |
