PC-2300 Portable Laser Particle Counter

Measures Particle Quantity and Size from 0.5µm to 100µm diameter. AC or Battery operated, for both Insitu and flowing liquids, oil and water.


  • Complete portability. Use it anywhere!
  • Easy Do-it-Yourself Calibration (sealed standards provided)
  • Compact & Rugged (15 lbs, floats)
  • Quickly Counts & Sizes (16 seconds min.)
  • Custom Easy-to-Use Software
  • Eliminates Sample Cell Flushing
  • Built in Magnetic Stirrer

Operation Theory

Utilizing the principle of "near angle light scatter", a revolving laser beam passes through the walls of a glass container of a flow-thru cell. When it is directed through a central "sensitive zone" the PC-2300 not only counts the particles in suspension, but tabulates their size as well. The analog signals generated by the light pulses are routed to a computer and digitized. Optical Schematic of the Laser Particle Counter

 Optical Schematic of the Laser Particle Counter        Detailed Laser optics


Spectrex provides three sealed calibration standards with each unit. Each standard contains a precise number of NIST traceable polystyrene spheres of known size in suspension and are sealed with inert Argon gas. These standards have a proven stability of more than 10 years and provide efficient calibration within 10 minutes.


  • Field Hydraulogy
  • Water Treatment Plants
  • University Laboratories
  • Pharmaceutical Manufacturers
  • Oil Refineries and On-site drilling
  • Bottling & Beverage Operations
  • Oceanographic Studies
  • Hydraulic Fluids and Oil QC
  • Liquid Chromatography Solvent
  • Cooling Tower and Waste Water Filter Efficiency
  • Particle Agglomeration Studies
  • Silts and Sediment Sizing
  • Particle Settling Characteristics
  • Corrosive Chemical and Solvent Sizing
  • Vial and Ampule Inspection
  • De-ionized Water and Acid Testing
  • Cell Counting

SuperCount® SOFTWARE

Developed by Spectrex, the custom interfacing electronics and proprietary software provide an easy means of analyzing and saving data generated by the PC-2300. SuperCount provides instant sizing information and histogram of size distribution in addition to indicating:

  • Absolute Counts
  • Mean Size
  • Mass Distribution
  • Percentage Distribution
  • Standard Deviation
  • Total Suspended Solids

The dilution factor can be automatically computed to give absolute count for liquids as dense as sludge! SuperCount also is loaded with a special bonus program for hydraulic fluids and Phi classifications.


Opacity Meter - provides an instantaneous measurement of the sample's opacity to correlate with computer calculations Small Vial Attachment - for use with 5ml vials or ampules Flow-Thru Cell - Spectrex stocks various sizes of flow-thru cells and can manufacture cells to customer specifications. Cells are also available for testing at high pressure and temperatures.


  • Size: 14.5 " x 9.5 " x 6"
  • Typical bottle size: 15-60 mm inside diameter
  • Bottle Material: transparent, scratch-free glass
  • Weight: 15 lb.
  • Power: 115v 60Hz AC, 12v car jack or internal battery (battery runtime is 5 hours)
  • Detectable Particle Size: from 0.5µm - 100µm

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