AlpHa Measurement Solutions |
Free & Total Chlorine in Pool & Spa

Free & Total Chlorine in Pool & Spa

At Alpha, our sensor offerings for free & total chlorine measurements in pool & spa are robust, accurate, and customizable to your needs. Some of their features include:

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

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

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

Output Flexibility: Analog (4-20 mA or 0-5 V) and digital (RS-485 MODBUS RTU) outputs.

Integrated Temperature Compensation: Consistent performance across 0 to 50°C, so can serve effectively in indoor/outdoor applications.

Measuring Free Chlorine with RC68 in Pools & Spas

Accurately measuring free chlorine with the RC68 sensor in pools and spas is vital for maintaining clean and safe water.

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Free & Total Chlorine in Pool & Spa

Communication and Connection Options

  •  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