Cooper Environmental Services

- Model Xact® 625i - Ambient/Fence-Line Multi-Metals Monitor (AMM)



Cooper Environmental’s Xact® 625i is designed for high time resolution multi-metals monitoring of ambient air, with detection limits that rival those of laboratory analysis. The Xact® 625i comes standard with a solid-state meteorological sensor and Cooper Environmental’s proprietary ADAPT analysis package, making the instrument one of the most powerful air pollution source detection offerings in the industry.

The system uses reel-to-reel filter tape sampling and nondestructive energy dispersive X-ray fluorescence (EDXRF) analysis. The air is sampled through a low volume (16.7 l/min) particulate matter (PM) size-selective inlet and drawn through a filter tape. The resulting PM deposit is then advanced into the analysis area where the sample is analyzed by EDXRF for selected metals while the next sample is collected.

  • ADAPT data analysis software that enables immediate research quality graphical reports to deliver unique insight on the temporal and variability trends of the metals measured
  • Sampling and analysis methodology that has been validated by the US EPA ETV program
  • Windows-based operating system with 10.1 inch touchscreen that may be ordered flat (shown) or tilted for lower placed instruments
  • Sampling, analysis, and near real-time reporting (every 15, 30, 60, 120, 180, or 240 minutes in ng/m³)
  • Automatic quality assurance, alarms, & control features
  • Incorporates an internal XRF quality assurance standard with every sample analyzed
  • Provides automatic, daily XRF calibration drift checks
  • Remote polling and remote system control
  • Global power design does not require power conversion or conditioning
  • Average detection limits improved by over 30% compared to previous generation Xact® 625

  • Adaptable to both stationary and mobile monitoring platforms
  • Effective for fugitive emissions measurement
  • Can be used to establish baseline levels for health-based standards
  • Capable of identifying hazardous “hot spots” around the perimeter of a facility
  • Enables effective source apportionment and chemical mass balance comparisons
  • Highly sensitive and reliable (low pg/m3 to μg/m3 range)
  • Nondestructive analysis allows for sample archiving
  • Aids source identification by correlating metals concentrations to wind speed and direction
  • Demonstrates metal concentration variability not observable with standard 24-hour methods
  • Can be used to identify plant activities associated with high metals concentrations

The Xact® 625i monitoring system can simultaneously identify and measure multiple metals in ambient air to provide data for use in the following applications:

  • Fence-line monitoring of metals processing facilities, incinerators, metal smelters, battery manufacturing facilities, cement plants, glass factories, and more
  • Source detection of lead, arsenic, nickel, and cadmium as well as other metals
  • Source Apportionment
  • Determination of background concentrations
  • Spatial recognition of pollution sources
  • Temporal recognition of pollution sources
  • Resolve acute, short duration events
  • Risk and emergency management

  • Measurement method.: Based on EPA Method IO 3.3: Determination of Metals in Ambient PM Using XRF
  • Key applicable elements.: Sb, As, Ba, Cd, Ca Cr, Co, Cu, Fe, Pb, Hg, Mn, Ni, Se, Ag, Sn, Ti, Tl, V, Zn, and more available
  • Measurement range.: Up to 60 μg/dscm and higher
  • Detection limits (IF, EPA IO - 3.3)1.: Metal and sample time dependent; refer to the minimum detection limit (MDL) data
  • Sampling and analysis times.: Every 15, 30, 60, 120, 180, or 240 minutes, user defined
  • Calibration stability check frequency.: Automatically with each sample analyzed
  • Estimated recalibration frequency.: Annually, when manufacturer’s operating recommendations are followed
  • Sample flow rate.: 16.7 lpm
  • Linearity.: Correlation coefficient >0.99
  • Size and weight.:
    • 19” w x 20” d x 30” h
    • 130 lbs
    • 19 inch (483 mm) rack-mountable or tabletop
  • Required operating environment.: Lab environment with temperature controlled to 20±5°C (68°F)
  • Power requirements.:
    • 120 VAC/60 Hz @ 20 amp or
    • 220 VAC/50 Hz 10 amp circuit
  • Outputs.:
    • RS232
    • Modbus protocol
    • Reporting of all metals that the system is calibrated to measure
  • Options.:
    • Change or add elements
    • Enclosures (NEMA 4, 4x, 12, or 12x)
    • Inlets (PM10, PM2.5, PM1, low volume TSP)

Xact® 625i monitoring systems are capable of identifying and measuring the 67 elements highlighted in the table above. Minimum detection limits for the elements highlighted in blue can be found on the performance page of this data sheet. The Xact® 625i can measure elements highlighted in gray, but detection limit data has not been published for these elements. Please contact your Xact® representative for more information on your specific metals monitoring requirements.

As a “standard” set of elements of interest, the 625i will be equipped to report the following 44 elements - Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Br, Rb, Sr, Y, Zr, Mo, Pd, Ag, Cd, In, Sn, Sb, Te, Cs, Ba, La, Ce, W, Pt, Au, Hg, Tl, Pb, and Bi. Of course, the elements can be tailored specifically to the user’s needs as well.

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