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The Aerosol Electrometer 3068B provides accurate measurements of electrical current and flow rate. It measures total net charge on aerosol particles from 0.002 to 5 µm.
When paired with a TSI Electrostatic Classifier, the Aerosol Electrometer measures the number concentration of monodisperse aerosol. This configuration is used primarily for calibrating and testing particle instruments like Condensation Particle Counters.
Data are presented on the front-panel display and output by RS-232 or USB in real time and also as an analog voltage for data recording. A vacuum source is required.