Take continuous direct mass measurements of particulates with excellent short-term precision using the Thermo Scientific™ 1405-DF TEOM™ Continuous Dichotomous Ambient Air Monitor. This monitor utilizes two tapered element oscillating microbalances (TEOM) and two Filter Dynamics Measurement Systems (FDMS), which account for volatile and nonvolatile PM fractions.
The 1405-DF TEOM Monitor simultaneously measures PM Fine (PM-2.5), PM Coarse and PM-10 mass concentrations. Consisting of two Filter Dynamics Measurement Systems (FDMS) and two TEOM mass sensors housed in a single-cabinet, network-ready configuration that includes control system with touch-screen user interface. The TEOM 1405-DF distinguishes itself from other PM measurement methods by utilizing a direct mass measurement that is not subject to measurement uncertainties found in surrogate techniques. It provides a self-referencing, NIST-traceable true mass measurement.
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