Measuring range: 0.005～20 ppm (mg/L) HOCl

Minimum detection limit: 5 ppb or 0.05 mg/L HOCl

Accuracy: 2% or ± 10 ppb HOCl

Response time: 90% less than 90 seconds

Storage temperature: -20～60℃

Operating temperature: 0 ～ 45℃

Sample temperature: 0 ～ 45℃

Calibration method: laboratory comparison method

Calibration interval: once/2 months

Maintenance interval: generally replace the membrane and electrolyte every six months

Inlet and outlet water sample tube connection: outer diameter Φ10

The electrolyte and the permeable membrane separate the electrolytic cell and the water sample, and the permeable membrane can selectively allow ClO- to penetrate; there is a fixed potential difference between the two electrodes, and the current intensity generated can be converted into the residual chlorine concentration;

On the cathode: ClO- + 2H+ + 2e- → Cl-+ H2O

On the anode: Cl- + Ag → AgCl + e-

Since there is a fixed conversion relationship between HOCl, ClO- and residual chlorine under certain temperature and pH conditions, residual chlorine can be measured in this way.