Process Free Chlorine Sensors

The FCL series Free Chlorine sensors utilize amperometric technology for real time Free Chlorine measurements. Applications include water treatment disinfection and free chlorine generators. These sensors integrate a temperature element for ATC and provide a fixed temperature compensated 4-20mA output. A power supply voltage of 12-24VDC is required. The FCL-402D is designed for 0-2ppm measurements and the FCL410D features a measuring range of 0-10ppm. The newest addition to this line is the FCL-405D which measures 0-5ppm. Membrane caps are easily replaceable. Electrolyte is also available and should be used to refill the membrane cap when replaced. The sensor's body is constructed of Black PVC. A specialized acrylic flow cell (FC72) provides a controlled flow enviornment for stability.

To learn more about re-fill solutions and replacement membrane caps, visit our ClO₂ and Free Cl- sensor replacement parts page.

Also, download our Free Chlorine product instructions for more information.