Particle Monitor from Chemtrac offers a far more sensitive alternative to a Turbidity Meter. Turbidity meters are based on the amount of light scattered at 90 degrees to the light source. Particle Monitors are based on the perturbation of a transmitted light signal and offer far greater sensitivity, particularly for larger particles such as those in the size range of Cryptosporidia and Giardia.

Particle Monitor Benefits

• Sensitive Particle Monitor
• Reduce RO/NF Membrane Particulate Fouling
• Reduce Membrane Replacement Costs
• Increase Flux Rates, Maximize Throughput
• Ensure Downstream Equipment Performance
• Continuous Process Monitoring

Particle Monitor Features

• Analog Outputs
• Up to 3 Additional Sensors Input to One Monitor
• Backlit Graphical LCD Display
• Simple Calibration Verification Procedure

Particle Monitor Description

Reverse Osmosis and Nanofiltration performance is directly affected by the feedwater quality. The Particle Monitor is a sensitive low-maintenance device that alerts operators to the presence of particulate contaminants allowing corrective action to be taken at the pre-treatment system before the membranes are fouled or damaged. The PM2500XRD Particle Monitor is an on-line instrument that continuously measures the fouling potential of liquids fed to high purity filtration systems.

Particle Monitor Measurement Principle

The Particle Monitor, Model PM2500XRD, uses a unique measurement of “Dynamic Light Fluctuation" which can detect low parts per billion of particulate down to the colloidal size range of 1 micron. The system provides "predictive" fouling information that has historically been measured by silt density index (SDI) or by a Turbidity Meter. The online, flow through sensor of the Particle Monitor eliminates sampling/testing variances encountered in manual SDI analyses. Sensors for the Particle Monitor can be multiplexed to provide complete, real-time monitoring of individual filters or any other component of the pre-treatment system.

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