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.

Key Features:

• Design that meets US and International Particulate Monitoring Regulations
• Compact, stand alone unit which utilizes a virtual impactor to measure PM Fine (PM-2.5) and PM Coarse concentrations with the ability to output PM-10
• Touch-screen GUI interface quickly and intuitively accesses system status, TEOM data, settings, and instrument conditions
• Service screen provides access to software wizards which walk the user through calibration and maintenance procedures with detailed instructions and pictures

Standard System Configuration:

• TEOM sensor and control unit housed in a single compact enclosure
• Menu-driven software for user interaction via a touch-screen display
• ActiVol flow control using Automatic Mass Flow Controller(s) and supplied Ambient Temperature and Ambient Pressure Sensors
• ePort software for local or remote communication, USB port for automated download
• System configurations include PM-10, PM-2.5, and PM-1

Data Averaging

• Real-time Mass Concentration Average: One hour rolling average updated every six minutes
• Long-Term Averaging: 1, 8, 24 hr.

Sample Flow

• ActiVol flow control system uses the mass flow sensors and the measured ambient temperature and pressure to maintain constant volumetric flow rates.

Filter Media

• Sample Filter: Pallflex TX40, 13mm effective diameter
• Sample Conditioner Filter: 47mm diameter housed in an FRM-style molded filter cassette, maintained at 4°C; suitable for collecting and archiving time-integrated PM samples for subsequent laboratory analysis

Sample Conditioning

• Nafion dryer lowers the main flow relative humidity and allows for mass transducer operation at 5°C over the peak air monitoring station temperature
• Purge Filter Conditioner contains a heat exchanger that maintains the temperature of the main flow and particle filter at 4°C to efficiently filter the volatile and nonvolatile PM in the sample

Includes:

• Connecting and interface cables and vacuum pump
• Consumables for average first year operation (ambient) excluding pump & FDMS dryer refurbishment part
• Pallflex TX40 Filter, 13mm effective diameter

Compatible with:

• Streamline Pro MultiCal System
• Complete Outdoor Enclosure

Recommended for:

• Air quality monitoring networks, including background sites
• Special studies and supersites
• Routine input for air quality index
• Remediation projects (Superfund, hazardous waste)
• Indoor air, exposure chamber, and industrial hygiene measurements
• In and around industrial and material handling facilities