| 摘要 |
FIELD: amperometric measurements. SUBSTANCE: amperometric indicator of concentration of free residual chlorine in drinkable water has a measuring unit and a hydraulic unit, having an input amplifier with a temperature compensator, potentiostat maintaining the level of the potential of reduction of free chlorine at the cathode, flow-through amperometric cell and a hydraulic system maintaining a constant flow rate of the flow of water to be analyzed in it, the cell has a cathode-electrode of noble metal, comparison electrode-ionselective membrane electrode and anode; the anode is made in the form of the casing of the flow-through amperometric cell of stainless steel with water inlet and outlet unions, which are shifted relative to the vertical axis of the anode connected to one output of the potentiostat, whose other output is connected to the comparison electrode. EFFECT: enhanced accuracy. 1 cl, 2 dwg |
