Free Chlorine Sensors

The FCL series (Free Chlorine Sensors) feature amperometric measurement technology. Designed for disinfection applications in water treatment, for pools, etc., these sensors are available in three ranges for detecting ppm level of free chlorine. Choose the FCL502 for 0-2ppm, FCL505 for 0-5ppm and FCL510 for 0-10ppm of free chlorine.

Typical applications include:

  • Industrial wastewater
  • Cooling water
  • Bottle rinsing
  • Irrigation water in agriculture

Sensors output a 4-20mA signal scaled to 0-2, 0-5 or 0-10ppm. Membrane cap and fill solution are easily replaceable to maximize sensor life.

Sensors can be used in new installations with Opticlear flow cells or installed as a replacement for other 4-20mA output free chlorine sensors.

An optional flow meter (FM001) is available to help provide consistent flow for added system stability.

Download Specifications Sheet

SKU: S-FCL Category:
  • Description

    Product Description

    Specifications

    Measuring Range 0-2, 0-5 or 0-10 ppm free chlorine
    pH Range 5.5 – 8.5
    Body Material PVC
    Membrane Cap Material PVC housing, proprietary membrane
    Temperature Range 0-45ºC
    Maximum Pressure 1 bar (bypass installation, open sample water outlet)
    Temp Comp Integrated
    Cable Length 10 feet 2 conductors, tinned leads
    Process Connection Flow cell ¼” FNPT threads
    Output 4-20mA
    Flow Range Min 0.2 gpm (45 I/hr), Max 0.6 gpm (135 I/hr)
    Supply Voltage 12-24V DC, 250mA minimum
    Cross Sensitivity Chlorine dioxide, Ozone, bromine, iodine

    Dimensions

     

    Sensor Dimensions FC72 Flow Cell Dimensions Sensor and Flow Cell Installation Dimensions Flow Meter FM001 Dimensions
    FM001 Dimensions

    Ordering Information

    Part # Description
    FCL502 0-2 ppm Free Chlorine 4-20mA sensor, 2 replacement cap & brand, 2 each 30mL refill, 3 pieces cathode polishing squares.
    FCLD505 0-5 ppm Free chlorine 4-20mA sensor, 2 replacement cap & band, 2 each 30mL refill, 3 pieces cathode polishing squares.
    FCLD510 0-10 ppm Free chlorine 4-20mA sensor, 2 replacement cap & band, 2 each 30mL refill, 3 pieces cathode polishing squares
    FC72 Flow Cell, 1/4” FNPT inlet and outlet, includes 2 each 1/4” NPT barbed tube fittings for 3/8” ID tubing
    FCLA-5015 FCL fill solution, 30mL, 2 each
    FCLA-5016 FCL 5 Series sensor replacement membrane cap, 1 each, pressure relief band 1 each
    FCLA-5017 3 each cathode polishing squares
    FCLA-5018 Maintenance kit for FCL5 series sensors includes: 1 replacement cap, 2 each 30mL refill, 3 each cathode polishing squares & 1 each pressure relief band
    FM001 Flow meter, 0.1-1.0 gpm (0.5-4.0 Lpm) range, 1/4” FNPT & 1/2 MNPT thread plus (2x) 3/8” tube fittings

    Download Specifications Sheet