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.
1. Measuring range:
0.005 ~ 20ppm(mg/L) HOCl
2. The minimum detection limit
5ppb or 0.05mg/L HOCl
3. Accuracy
2% or ±10ppb
4. HOCl response time:
90%<90second
5. Storage temperature
-20 ~ 60 ℃
6. Operation temperature
0~45℃
7. Calibration method
laboratory comparison method
8. Calibration interval
1/2 month
9. Maintenance interval
Replacement of electrolyte every six months
10. The connection tubes for inlet and outlet water
external diameter Φ10
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