HydroACT Series
Streaming Current Charge Analyzer


Chemtrac, Inc./ Products/ Disinfection Monitoring/ Residual Chlorine Analyzer

HydroACT - Front View - Smaller - 031416
HydroACT - 031416
Single Open Flow with Chlorine - Datasheet
Double Flow with ph and Chlorine - datasheet
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Residual Chlorine Analyzer

HydroACT

The HydroACT Reagentless Chlorine Analyzer takes online disinfection monitoring to a new level of reliability by offering industry-leading performance, an excellent track record of EPA Method 334.0 compliance, reduced pH dependency, and no requirement for zero calibration. Chemtrac’s line of membrane covered Free and Total Chlorine sensors have no moving parts, no bottles of reagent to change out monthly, and quarterly maintenance takes less than five minutes to perform.

The HydroACT Reagentless Chlorine Analyzer takes online disinfection monitoring to a new level of reliability by offering industry-leading performance, an excellent track record of EPA Method 334.0 compliance, reduced pH dependency, and no requirement for zero calibration. Chemtrac’s line of membrane covered Free and Total Chlorine sensors have no moving parts, no bottles of reagent to change out monthly, and quarterly maintenance takes less than five minutes to perform. HydroACT offers a versatile solution to your disinfection monitoring needs with the flexibility to accept additional sensors, as well as
offering expandable I/O and PID control loops.

Standard Features
  • Includes analyzer, free or total chlorine sensor,
    flow cell, 1 analog output, 1 year consumables
  • Accurate chlorine measurement with reduced
    pH dependency
  • No moving parts, no reagents
    Suitable for reporting when used in compliance
    with EPA Method 334.0
  • Event logging

Optional Features
  • Expandable sensor inputs and I/O
  • Color display and data-logging with microSD
    card download
  • Modbus or PROFIBUS communictions
    Chemical feed control capability (e.g. PID)
  • pH compensation of free chlorine reading

Benefits
  • Lower total cost of ownership
  • Easy set up and maintenance
  • Intuitive menu and programming functions

The HydroACT Chlorine Analyzer standard configuration includes version HA2 analyzer, 1 sensor (Free or Total Chlorine), 1 analog output, and 1 year
consumables. Optional features include relays, digital inputs, digital comms, expanded number of sensor inputs and analog outputs, color display, and data
download capability. Maximum I/O capabilities and certain features are specific to the different versions of HydroACT as detailed below.

 

HydroACT Features HA2 HA4 HA8
Sensor limit* 2 4 8
Analog output limit* 2 4 8
Relay limit* 4 8 16
Digital Input limit* 4 8 16
On/Off threshold control optional optional optional
Advanced control (e.g. PID) optional optional optional
Color display  
Data logging and download  
Remote (Internet) access    optional optional
PROFIBUS, Modbus   optional optional

*Optional configuration limits. See above description for standard configuration of analyzer version & I/O setup. Optional configurations must be specified.

 

Sensor Options

Free Cl, Total Cl, Cl Dioxide, Chlorite,
Ozone, ORP, pH with Temperature, DO,
Conductivity, SCM, UV254 Organics,
TSS/NTU, Particle Counter

Available Output Types

Universal (0-20mA, 4-20mA, 0-10 VDC)

Relays (optional)

SPST electromechanical relays rated for
380 VAC, 6A max.
Alarms & Thresholds: user-configurable alarms and 2 userconfigurable
thresholds (for control)
Chemical Feed Control (optional) HA4 & HA8 only – PID, Feed Forward, Flow
Proportional, Timer – multiple loops
Communication (optional) Modbus ASCII/RTU (RS485), Modbus TCP
(Ethernet), Profibus DP
Data Logging (optional) Customizable data logs. 1 million records
can be logged internally, and downloaded
to MicroSD card.
Enclosure ABS flame retardant, IP65, Nema 4X
Display 4.3”, 480×272, 24 bit, grayscale
Optional: color (HA4 & HA8 only)
Dimensions HA2 & HA4 – 9.0” W x 12.2” H x 4” D
(230 mm W x 309 mm H x 1035 mm D)
HA8 – 18.0” W x 12.2” H x 4” D
(460 mm W 309 mm H x 1035 mm D)
Weight HA2 & HA4 – 4.5 lbs (2 kg)
HA8 – 9 lbs (4 kg)
Warranty 12 months from date of purchase

 

Chlorine Sensor Probe (Free or Total)*

Type

Membrane-covered amperometric three-electrode system

Measured Free residual chlorine or total residual chlorine
Probe Ranges 0.01 – 2, 0.01 – 5, 0.01 – 10, or 0.01 – 20 mg/L
0.01 – 200 mg/L (Free residual chlorine only)
Resolution 0.01 mg/L (ppm)
Reproducibility ±5%
Stability -2% per month (without calibration)
 Working Electrode  Gold cathode
 Counter Electrode  Stainless steel anode
 Reference Electrode  Silver/silver halide
 Flow Rate  15 to 60 L/hr.
 Temperature Range  > 41° up to < 113° F (> 5 up to < 45° C)
 Temperature Compensation  Automatically by integrated thermistor (ATC)
pH Range pH 4 – pH 9 (Free), pH 4 – pH 12 (Total)
Permissible Over-Pressure 7.25 psi (0.5 bar)
First Polarization Time 120 min.
Re-Polarization Time 30 min.
Zero-Point Adjustment Not necessary
Calibration Manual using DPD
Housing Material PVC, silicone, polycarbonate, stainless steel
Dimensions Diameter approx. 0.98 in., length 6.89 in.
Replacement Intervals
Membrane:
Electrolyte:
Annually (approx.) depending on water quality
3 – 6 months
Interferences Ozone and chlorine dioxide. Surfactants are partially tolerated
Free Chlorine – Operation Manuals Version Languages Size Date
HydroACT 300 Operations Manual

HydroACT 300 Operations Manual

1.0 MiB 10/21/2013
HydroACT 4 Free Chlorine User Manual

HydroACT 4 Free Chlorine User Manual

3.4 MiB 11/15/2017
Total Chlorine – Operation Manuals Version Languages Size Date
HydroACT 4 Total Chlorine User Manual

HydroACT 4 Total Chlorine User Manual

3.3 MiB 11/15/2017
Residual Chlorine Analyzer / Datasheets Version Languages Size Date
HydroACT Residual Chlorine Analyzer - Data Sheet

HydroACT Residual Chlorine Analyzer – Data Sheet

1.1 MiB 05/15/2017
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 Chlorine Sensor Assembly and Setup Posted on: 02/01/2018

    Properly assembling the chlorine sensor is critical to the operation of the chlorine analyzer. This video demonstrates the appropriate way to set up the probe with the electrolyte, and the membrane cap.

  • Chemtrac Chlorine Sensor Flow Cell Setup Posted on: 02/01/2018

    The chlorine sensor flow cell is designed to direct the proper sample flow past the membrane in order to ensure accurate and consistent results.

  • WTP Prefers “Reagentless” Chlorine Analyzers Posted on: 06/08/2017

    A Water Treatment Plant in Auburn, AL has the need to monitor free chlorine onsite, as well as at remote locations in the distribution system, where they do not want to have to use reagents. They fist ordered a Chemtrac Reagent-less Free Chlorine analyzer in 2009, and have since purchased several more for other monitoring locations.

  • 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.

HydroACT Series
Streaming Current Charge Analyzer

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