Residual chlorine electrochemical sensor YLG-2058-01

for water

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 1.Measuring range 0.005 ~ 20ppm(mg/L) 2.The minimum detection limit 5ppb or 0.05mg/L 3.Accuracy 2% or ±10ppb 4.Response time 90%<90second 5.Storage temperature -20 ~ 60 ℃ 6.Operation temperature 0~45℃ 7.Sample temperature 0~45℃ 8.Calibration method laboratory comparison method 9.Calibration interval 1/2 month 10.Maintenance interval Replacement of a membrane and electrolyte every six months 11.The connection tubes for inlet and outlet water external diameter Φ10 Daily Maintenance (1) Such as the discovery of the whole measurement system long response time, membrane rupture, no chlorine in the media, and so on, it is necessary to replace the membrane, the maintenance of the electrolyte replacement. After each exchange membrane or electrolyte, the electrode needs to be repolarized and calibrated. (2) The flow rate of the influent water sample is kept constant; (3) The cable shall be kept in a clean, dry or water inlet.