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Chemtrac, Inc./ Products/ Disinfection Monitoring/ Chlorine Dioxide

HydroAct
Flow-Cell
Dr-Reiss-Tip-2

Chlorine Dioxide

HydroACT Series

The HydroACT 300 Residual Chlorine Analyzer can measure free chlorine, total chlorine, chlorine dioxide, or pH, and is appropriate for compliance reporting following USEPA Method 334.0.

Because the HydroACT 300 has no moving parts and does not require any reagents or buffers, cost of ownership is low and maintenance is simple.

The HydroACT 300 Residual Chlorine Analyzer can measure free chlorine, total chlorine, chlorine dioxide, or pH, and is appropriate for compliance reporting following USEPA Method 334.0. Using a membraned-covered three-electrode amperometric sensor for chlorine measurment, Chemtrac’s probe design incorporates a long-lasting electrolyte solution which significantly reduces pH dependency. Because the HydroACT 300 has no moving parts and does not require any reagents or buffers, cost of ownership is low and maintenance is simple. The HydroACT 300 is available with up to three chlorine sensor inputs or one chlorine sensor input and one pH with Temp. sensor input, reducing the overall cost per sample point. Additional measurements such as Ozone, ORP, DO, and Conductivity are also available as sensor options.

Standard Features

  • Capable of accepting up to three measurements including: Free Chlorine, “Zero” Free Chlorine, Total Chlorine, Chlorine Dioxide, Ozone, pH & Temp, ORP, TSS/NTU, DO, SCM, Conductivity, UV254 Organics, Chlorite, Particle Couner, and Biofilm
  • Membrane-covered three-electrode amperometric Free and Total Chlorine sensors
  • Automatic temperature compensation
  • Eventlogging
  • Capable of providing up to three analog outputs, four relays, and two digital inputs
  • Isolated inputs and outputs

Optional Features

  • pH compensation (free chlorine sensor)
  • Low flow detector
  • PID control capability
  • Modbus communiction (RTU or TCP), Profibus

Benefits

  • No reagents or moving parts
  • Appropriate for compliance reporting
  • Easy set up and maintenance
  • Intuitive menu and programming functions
  • Reduced pH dependency
  • Low purchase and ownership cost

Chlorine Dioxide Sensor Probe

Type Membrane-covered amperometric two-electrode system
Measured Chlorine dioxide
Probe Ranges 0.01 – 0.5, 0.01 – 2, 0.01 – 5, 0.01 – 10, or 0.01 – 20 mg/L (ppm)
Resolution 0.01 mg/L (ppm)
Repeatability < 1%
Working Electrode Gold cathode
Counter Electrode Anode: combined reference and counter electrode of silver/silver halogenide
Reference Electrode Silver/silver halide
Flow Rate 15 to 60 L/hr.
Temperature Range > 41° up to 122° F (> 5° up to 50° C)
Temperature Compensation Automatically by integrated thermistor (ATC)
pH Range pH 1 – pH 11
Permissible Over-Pressure 14.5 psi (1 bar)
First Polarization Time 60 min.
Re-Polarization Time 30 min.
Zero-Point Adjustment Not necessary
Calibration Manual using analytic determination
Housing Material PVC, silicone, polycarbonate, stainless steel
Dimensions Diameter approx. 0.98 in., length 6.89 in.
Replacement Intervals Membrane: Annually (Approx.) – depending on water quality
Electrolyte: 3 – 6 months
Interferences Ozone
Chlorine Dioxide – Operation Manuals Version Languages Size Date
HydroACT 4 Chlorine Dioxide User Manual

HydroACT 4 Chlorine Dioxide User Manual

3.3 MiB 11/15/2017
Chlorine Dioxide – Datasheets Version Languages Size Date
HydroACT Residual Chlorine Dioxide Analyzer

HydroACT Residual Chlorine Dioxide Analyzer

447.9 KiB 11/28/2016
Chlorine / Other Documents Version Languages Size Date
Comparison Of On-Line Chlorine Analyzers

Comparison Of On-Line Chlorine Analyzers

1.0 MiB 10/21/2013
Free Chlorine Probe Manual (Older Model)

Free Chlorine Probe Manual (Older Model)

1.7 MiB 11/19/2013
Free Chlorine Residual Hints & Tips

Free Chlorine Residual Hints & Tips

449.9 KiB 10/21/2013
Total Chlorine Probe Manual (Older Model)

Total Chlorine Probe Manual (Older Model)

1.6 MiB 11/19/2013
Understanding On-line Amperometric Chlorine Measurements

Understanding On-line Amperometric Chlorine Measurements

700.1 KiB 11/14/2014
  • Chemtrac to Exhibit at ACE17 in Philadelphia Posted on: 05/25/2017
    The HydroACT 300 Residual Chlorine Analyzer can measure free chlorine, total chlorine, chlorine dioxide, or pH, and is appropriate for compliance reporting following USEPA Method 334.0. Because the HydroACT 300 has no moving parts and does not require any reagents or buffers, cost of ownership is low and maintenance is simple.
  • Video Testimonial: WTP Prefers “Reagentless” Chlorine Analyzers Posted on: 04/18/2017

    When the water treatment plant in Auburn, AL was looking for the ability to monitor chlorine in off-site locations, they did not want to have to deal with on-line analyzers that required reagents. Instead they turned to Chemtrac’s HydroACT Chlorine Analyzers which utilize amperometric probe sensors with membrane caps. By choosing the probe approach, the maintenance requirements, and subsequent maintenance costs, were reduced tremendously. And the plant also came to realize that not all chlorine probe analyzers are the same.

  • New Chlorine Analyzer Video Demonstration Posted on: 08/29/2016

    We at Chemtrac want our customers to better understand our products. We feel the next best thing to having an on-site demonstration of our analyzers is to be able to see a video demonstration…and become more aware of the product capabilities, and see the ease of set-up and operation.

  • Another Successful Showcase at ACE 2016 Posted on: 07/30/2016

    The Chemtrac team joined attendees at ACE 2016 in Chicago, IL to discuss the latest models of Streaming Current Monitors, Particle Counters, Chlorine Analyzers, and HydroACT multi-parameter analyzer.   The Laboratory Charge Analyzer, a bench-top streaming current unit, was the featured product.

    As mentioned previously, the LCA builds on the success and solid performance of its predecessor models (CCA3100, ECA2100 and ECAT2100), allowing for charge neutralization titrations to accurately determine target coagulant dosages for surface water treatment. Essentially, the LCA provides a way for conducting jar tests in less than five minutes, as opposed to the traditional methods that can take in excess of an hour to run.

  • Chemtrac Presenting at International EPRI Conference Posted on: 07/10/2015
    The HydroACT 300 Residual Chlorine Analyzer can measure free chlorine, total chlorine, chlorine dioxide, or pH, and is appropriate for compliance reporting following USEPA Method 334.0. Because the HydroACT 300 has no moving parts and does not require any reagents or buffers, cost of ownership is low and maintenance is simple.

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