Multisizer 3 Coulter Counter

Using the Coulter Principle, also known as ESZ (Electrical Sensing Zone), the Multisizer 3 COULTER COUNTER provides number, volume, mass and surface area size distributions in one measurement, with an overall sizing range of 0.4 µm to 1,200 µm. Its response is unaffected by particle color, shape, composition or refractive index.

The Coulter Principle is the absolute leading technology in high resolution and accuracy and it is further enhanced in the Multisizer 3 by using a Digital Pulse Processor (DPP).




Multi-Parameter Analysis

  • Digital Pulse Processor (DPP) samples signals millions of times/second for accurate particle counts/size, volume & shape characteristics
  • Highest resolution available for particle size distributions by volume measurement
  • DPP allows recalculation of original data over narrower range for significantly enhanced resolution of targeted range

Flexible Easy Data Analysis

  • Store & save pulse data without information loss
  • Re-run data at any time using different parameters
  • Wizards for easy test setup & reporting
  • SOMs/SOPs stored for consistent operation of standard tests & data sharing across sites/labs

Quality Assurance

  • User defined SOPs
  • Multiple security levels for 21 CFR Part 11 compliance
  • Trending capability for quick easy process monitoring
  • Certification Program to ensure instrument performance
  • V-Check (IQ, OQ, PQ) instrument validation

Calibration and Resolution

  • Automatic calibration for consistency & confidence in results
  • Calibration status can be verified at any time


Choose a Multisizer 3 COULTER COUNTER Model

Tech Docs Part Number Product Name Weight Height Power Requirements List Price Buy
34 kg / 75 lb
45 cm / 17.7 in
100-240 VAC, 50/60 Hz, 50 W (65 W max)


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Product Specifications

Channels/Standard Sizes Binning (3-300 channels, number & range reprocessable as necessary)
Max Capacity Volume Range 3 - 400 mL
Sample Volume 4-400 mL
Aperture Current Accuracy ±0.4%
Aperture Current Range 30 µA in 0.2 µA steps to to 6000 µA in 0.2 µA steps to
Aperture Diameter Range 0 µm to to 1600 µm to
Digital Pulse Processor Proprietary high-speed digitization of the signal
Volumetric Mode Continuously selectable from 50 µL-2,000 µL
Volumetric Pump Accuracy >99.5%
Item Specifications Referenced 6605697


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