FIC / FOC free chlorine sensors

Amperometric sensors of organic and inorganic free chlorine FIC / FOC

Measurement range:

  • 0.05-2 ppm
  • 0.05-20 ppm

FOC / FIC chlorine sensor for measuring organic and inorganic free chlorine in water, supplied with electrolyte, used in ETATRON D.S. automatic water treatment plants. (Italy). Low dependence on changes in pH in water. It can work in water with isocyanuric acid, surface-active substances (surfactants), flocculant.

Design and operation of the closed-type amperometric sensor FOC / FIC - is a closed galvanic cell (similar to a battery), which has a cathode (made of gold or platinum) and an anode (silver or copper). The cell is filled with electrolyte and separated from the medium by a membrane, which prevents the loss of electrolyte and allows only the composition of the measured liquid to be passed for measurement, is also a filter from unnecessary and harmful impurities. The filtered membrane composition enters the electrolyte filling the sensor, where it decomposes at the cathode. The formed ions enter the anode, where they are oxidized - a current occurs proportional to the concentration of the analyte in the water, the level of which was necessary to measure.

Technical Specifications FOC / FIC Chlorine Sensor:

  • Type - CC1N or CC1HUn
  • Type of membrane - M48, article AME0000301
  • Measuring range 0-2 ppm (0-2 mg / l) or 0-20 ppm (0-20 mg / l)
  • Measurement of chlorine in the range of 4-12 pH
  • Maximum operating temperature - 45 degrees
  • Workflow 30-40 l / hour
  • Max. back pressure in the system - 1 bar
  • Automatic temperature compensation - yes
Name type Article Price without VAT, (€)
Chlorine sensor SONDA CL, 0.05-20 ppm, FOC / FIC CC1N RSO0001701 1306
Chlorine sensor SONDA CL, 0.05-2 ppm, FOC / FIC CC1HUn RSO0001702 1306
Warning! Connecting cable is not included.

FIC / FOC free chlorine sensors

Pos. Name
1 4-pin connector
2 Sensor Housing with Amplifier
3 Comparison electrode
4 Reference electrode
5 Measuring electrode
6 O-ring 14x1.8 mm
7 Cap
8 Atmospheric valve
9 Disc holder membrane
10 Membrane

FIC / FOC free chlorine sensor connection

A special connecting cable with combined plugs is used to connect the FIC / FOC chlorine sensor to metering pumps or liquid analyzers.

Connection is carried out according to the diagram below:

Connection of the FIC / FOC free chlorine sensor

The connection cable for the FIC / FOC chlorine sensor is not supplied with the chlorine sensor. Connection cable sold separately.