Ultra DI® 50 Liquid Particle Counter

Ultra DI particle counters are designed specifically for deionized (DI) water systems and will count and size contaminants as small as 0.05 microns. The Ultra DI particle counter’s low zero count, large sample volume, and high counting efficiency provide unsurpassed performance.

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Rapid Analysis

  • Quickly obtain meaningful statistical data with Ultra DI’s large sample volume
  • Save operator time with fast clean up and the ability to move quickly from one sample point to another
  • Speed up analysis time by using shorter sample intervals

Process Development

  • Larger sample volumes and ultra-low zero counts detect smaller excursions with more relevant statistical data
  • Respond immediately to contamination with real-time measurement of particles
  • Facility Net software provides more sophisticated process control with: alphanumeric paging, sensor status, tabular and SPC charts, time plots, and historical event log records
  • Set tighter process control limits with low sample-to-sample variation
  • Detect process variations more quickly with improved sensitivity: 0.05 microns

Easy to Use

  • Utilize existing network with Ethernet communication
  • Connect directly to PLC and SCADA systems with 4-20 mA
  • Compatible with ozonated water
  • Stainless steel housing and dual HEPA filtration allow use in dirty environments


  • Quantifying particle concentration in stateof- the-art ultra pure water (UPW) systems
  • Filter efficiency measurements
  • Trending analysis at lower particle concentrations
  • Detecting bacterial growth in UPW systems
  • Episodic event tracking and alarming
  • Continuous system monitoring
  • Manufacturing process control
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