AlpHa Measurement Solutions |
Free & Total Chlorine in Ballast Water Treatment

Free & Total Chlorine in Ballast Water Treatment

AlpHa’s RC67 and RC68 chlorine sensors offer precise, continuous measurement of free and total chlorine, hence making them ideal for ballast water treatment. Their advanced amperometric technology ensures reliable readings without additional chemical reagents, which is crucial for effective disinfection.

Some features of the RC67 and RC68 include:

Wide Measurement Range: Adjustable from 0-2 ppm to 0-100 ppm.

Versatile Outputs: Supports analog (4-20 mA or 0-5 V) and digital (RS-485 MODBUS RTU) formats.

High Accuracy and Resolution: Provides accuracy of 0.2 ppm or 4% and a resolution of 0.01 ppm.

Temperature Compensation: Integrated to maintain performance across 0 to 50°C.

Low Maintenance: Requires monthly calibration with a quick response time (T90 in 120 seconds).

Robust Design: Constructed from durable materials like PVC, CPVC, ABS, and Ryton.

Free & Total Chlorine in Ballast Water Treatment

Free & Total Chlorine Sensor Capabilities

  •  Ranges:
    • 0 – 2 ppm / 0 – 5 ppm / 0 – 10 ppm / 0 – 20 ppm / 0 – 100 ppm
    • Adjustable within 0 – 100 ppm
  • Typical Calibration Frequency: Monthly
  • Response Time: T90 120 Seconds
  • Resolution: 0.01 ppm 
  • Accuracy: 0.2 ppm or 4%, whichever is greater
  • Temperature Range: 0 to 50°C
  • pH Range: pH independent between 6 to 9 and pH compensation available outside this range
  • Flow Rate:
    • Minimum: 30 L/hr (0.6 cm/s)
    • Maximum: 60 L/hr (1.3 cm/s)
  • Sensor Type: 3 – Electrode Amperometric with Membrane
  • Warranty: 12 Months

Configuration Options

  • Technology
    • Free Chlorine
    • Total Chlorine
    • Chlorine Dioxide
  • Form Factor
    • Process Body
    • Custom Options Available
  • Housing Material Options
    • PVC / CPVC
    • ABS
    • Ryton
    • Custom Options Available
  • Thermistor Options
    • Integrated Temperature Compensation
  • Integrated Insertions
    • 1" Compression Fitting
    • 3/4" NPT
    • Custom Options Available

Communication and Connection Options

  • Analog
    • 4 – 20 mA
    • 0 – 5 V
  • Digital
    • RS-485 MODBUS RTU
  • Cables & Connectors
    • Tinned Leads
    • Custom Options Available