TE-6070DVBL-2_5 PM2.5 Hi-Vol Air Sampler VFC Digital Timer Brushless 110V

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The TE-6070DVBL-2_5 high volume air sampler delivers precision PM2.5 particulate matter collection for ambient air monitoring, research studies, and source assessment applications. This sampler collects fine particulate matter with an aerodynamic diameter less than or equal to 2.5 micrometers (µm) over 24-hour sampling periods, with concentrations expressed in micrograms per cubic meter (µg/m³).

Volumetric Flow Control Technology

The VFC system uses a choked-flow venturi that operates at sonic velocity in the throat, maintaining consistent volumetric flow rates independent of downstream conditions such as motor speed or exit pressure, controlled entirely through engineering design without moving parts or electronic components. The vacuum motor operates at maximum speed, drawing air through a fixed area in the VFC to establish critical flow through the sampling head. This design maintains stable flow rates across varying field conditions including temperature and barometric pressure changes.

Digital Timer and Brushless Motor

The integrated digital timer provides straightforward programming for repeatable sampling periods with precise start/stop control. The brushless motor design reduces routine maintenance requirements while supporting extended service life in continuous field deployment. Brushless motors eliminate carbon brush replacement intervals and reduce electrical interference compared to brush-style motors.

Key Specifications

Power configuration: 110V, 60Hz single phase with earth ground
Sample type: PM2.5 (particles ≤ 2.5 µm aerodynamic diameter)
Flow control: Volumetric Flow Controller (VFC)
Motor type: Brushless, maintenance-reduced design
Timer: Digital programmable timer
Filter size: 8" × 10" compatible

PM2.5 Sampling Applications

PM2.5 monitoring supports compliance with EPA National Ambient Air Quality Standards, with reference methods specified in 40 CFR Part 50, Appendix L. Applications include:

Ambient air quality monitoring networks
Environmental research and source characterization
Industrial hygiene and occupational health studies
Enclosed environment monitoring
Non-regulatory research requiring fine particulate data

Complete System Configuration

Housed in an anodized aluminum shelter designed for outdoor deployment, the TE-6070DVBL-2_5 includes the core components needed for routine field sampling operations. The system integrates the PM2.5 size-selective inlet, filter holder assembly, brushless motor, VFC unit, digital timer, and control electronics in a weatherproof enclosure.

Regulatory Reference

PM2.5 sampling follows 40 CFR Part 50, Appendix L reference method requirements for fine particulate matter determination in ambient air. EPA has established a data quality objective of 10 percent coefficient of variation or better for operational precision of PM2.5 monitoring data.