Particulate Measurement Technology

Principle of Operation:

As particles flow over a sensing probe, charge is induced into the probe creating small currents in the picoamp (pA) range. The signal is processed into an output proportional to mass.

Auburn FilterSense invented particulate monitoring using charge induction and remains the technology leader.

• End users choose DynaCHARGE™ to replace competing devices and opacity more than any other brand.

• OEMs choose DynaCHARGE™ more than any other brand.


Prevent False Alarms

Fully insulated probes prevent false alarms from moisture, corrosives, agglomeration, and most conductive particles – without air purge.

Low Maintenance

Typically maintenance free, where competing
charge-sensing, tribo, and optical monitors often have 1–3 month cleaning intervals.


Sensors are free of electronics on most models (optional on all). Removing electronics from heat and vibration increases performance and product life and enables intrinsic safety approvals.

Stringent Quality

ISO 9001 certified design and manufacturing, accelerated life testing in the design stage (HALT), thermal stress testing prior to shipment, conformal coating circuits, and quality packaging ensure reliability.

Easy To Use


Fast and easy to install with no special alignment or structural needs (like optical). Remote electronics provide safe, easy commissioning for the many filtration monitoring points that are difficult to access.

Simple Operation

An absolute output proportional to particulate mass provides normalized values for straightforward set up and historical data review. There are also no confusing sensitivity adjustments or blind auto-set functions.

High Precision When You Need It

High-precision options provide superior low-level detection, and increased linearity for mass correlations resulting in exceptional measurement and graphical filter leak analysis.


DynaCHARGE™ vs. Competition (Waste to Energy Plant)


DynaCHARGE™ vs. Optical (Aluminum Plant)

EPA Compliance

DynaCHARGE™ is applied to EPA MACT, NESHAP, Title V/CAM and corresponding international regulations (TUV, MCERTS etc).

Models are available for all categories of compliance monitoring including:

  • Correlated output in mg/m3
  • Relative mass monitoring
  • Leak analysis/detection (BLDS)

Instrument accuracy, self-testing, and QA functions meet regulatory design and performance standards such as:

  • ASTM D7392
  • EN 15859