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