PC6 with HydroACT Series

Particle Counter Sensor

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The PC6 Particle Counter Sensor, when combined with a HydroACT analyzer, brings many of the same great features of Chemtrac’s stand alone models (i.e. PC3400 & PC4400) to the HydroACT family of analyzers. PC6 allows the user to integrate multiple particle detection sensors into one analyzer or mix and match with other measurements of water quality like pH, chlorine, and UV254 organics. The PC6 also comes standard with volumetric concentration (ppb) measurement capability. 

  • Parts-per-billion (ppb) measurment with detection down to 0.01 ppb
  • Counts particles in liquid from 2-750 microns
  • Sizes particles from 2-100 microns
  • Up to 6 user programmable size ranges
  • Reports cnts/mL, or cnts/100mL, ppb
  • User-friendly, menu driven calibration
  • Laser & cell condition readout (0-100%)
  • External sensor with sapphire optics
  • Available with HydroACT analyzer models 300, 600, and 1200
  • Familiar volumetric concentration readout (ppb) for particles greater than 2 microns
  • Provides a reliable and accurate measurement of particles down to low ppt levels
  • Advanced firmware and menu functions eliminates need for external software to perform setup and calibration
  • User-friendly calibration routine makes the process fast and simple, and lowers maintenance cost
  • External sensor is easy to clean and water is kept away from electronics
  • Water Treatment
  • Wastewater Treatment
  • Reverse Osmosis Pretreatment
  • Membrane Filtration
  • Aquatics
  • Boiler/Condensate
  • Parts Washing
  • Food & Beverage
  • Pharmaceutical

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Overview

The PC6 Particle Counter Sensor, when combined with a HydroACT analyzer, brings many of the same great features of Chemtrac’s stand alone models (i.e. PC3400 & PC4400) to the HydroACT family of analyzers. PC6 allows the user to integrate multiple particle detection sensors into one analyzer or mix and match with other measurements of water quality like pH, chlorine, and UV254 organics. The PC6 also comes standard with volumetric concentration (ppb) measurement capability. For those users who prefer a single channel readout, the concentration display provides a more familiar measurement format (ppb). Changes in ppb accurately illustrate the impact from changes in particle concentration and particle size distribution. Full integration between the sensor and analyzer means all sensor settings, including user-friendly calibration features, can be accessed from the HydroACT’s user interface.A larger flow cell helps make this sensor easier to clean, and also reduces overall installation footprint due to the more compact flow control weir design.

The PC6 has many potential applications and can be used virtually anywhere that there is a concern of potential contamination in a clean liquid. For very low levels of suspended solids, particle counting is quite often a better alternative to other traditional measurements like turbidity and SDI. Contact Chemtrac to discuss your application, and let us find the right solution for you.

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Q & A’s

The PC6 Particle Counter can detect particles in the range of 2 to 750 microns.

The PC6 sizes particles from 2 to 100 microns.

The PC6 uses a solid-state laser diode with a wavelength of 780 nm.

The flow rate for the PC6 is 75 mL/min.

The cell is made of Nituff coated aluminum with optional PEEK plastic, and the viewing windows are made of sapphire.

The PC6 supports 6 user-selectable size channels.

The PC6 has a resolution better than 10% at 10 microns, according to ASTM-F658 standards.

The PC6 uses light obscuration and volumetric measurement types.

Specifications

  • Laser Type

    Solid-state laser diode (780nm)

  • Cell Material

    Nituff coated aluminum
    PEEK plastic (optional)

  • Viewing Windows

    Sapphire

  • Detection Range

    2-750 microns

  • Sizing Range

    2-100 microns

  • ppb Range

    0.01-10,000 ppb – calculated volumetrically for particles larger than 2 micron

  • Flow Rate

    75 mL/min

  • Resolution

    Better than 10% at 10 micron (ASTM-F658)

  • Coincidence Limit

    8,000 cnts/mL (2 micron) 20,000 cnts/mL (optional)

  • Signal to Noise Ratio

    Better than 3:1

  • Size Channels

    6 user-selectable; each size channel counts as a parameter on HydroACT analyzers

  • Alarms

    Sensor diagnostic, low cell condition

  • Laser Diode Life

    MTBF 75,000 hours @ 55º C

  • Measurement Type

    Light obscuration, volumetric

  • Display Readout

    Size channel, counts, parts-per-billion (ppb), cell condition (0-100%), laser condition (0-100%), sample period, sample frequency

Downloads

Title Category Upload Date File Size Download
PDF Particle Counter Sensor PC3 Datasheet
HydroACT Multiparameter Analyzer, Particle Counter, PC3 & PC6 Nov 3, 2025 1,021 KB Download
PDF Particle Counter PC6 Datasheet
HydroACT Multiparameter Analyzer, Particle Counter, PC3 & PC6 Nov 3, 2025 1 MB Download
PDF HydroACT 4 and PC6 Operations Manual
HydroACT Multiparameter Analyzer, Particle Counter, PC3 & PC6 Oct 29, 2025 3 MB Download
PDF HydroACT 4 & Particle Counter Sensor PC3 Operations Manual
HydroACT Multiparameter Analyzer, Particle Counter, PC3 & PC6 Oct 29, 2025 3 MB Download
PDF

Particle Counter Sensor PC3 Datasheet

1,021 KB
HydroACT Multiparameter Analyzer, Particle Counter, PC3 & PC6
November 3, 2025
PDF

Particle Counter PC6 Datasheet

1 MB
HydroACT Multiparameter Analyzer, Particle Counter, PC3 & PC6
November 3, 2025
PDF

HydroACT 4 and PC6 Operations Manual

3 MB
HydroACT Multiparameter Analyzer, Particle Counter, PC3 & PC6
October 29, 2025
PDF

HydroACT 4 & Particle Counter Sensor PC3 Operations Manual

3 MB
HydroACT Multiparameter Analyzer, Particle Counter, PC3 & PC6
October 29, 2025