Description

Pall’s Xact 640 system uses reel-to-reel (RTR) filter tape

sampling and non-destructive X-ray fluorescence (XRF)

analysis to monitor stack HAP metal emissions. An

isokinetic sub-sample of stack gas is taken from the

stilling chamber and drawn through a chemically-reactive

filter tape. Vapor phase metals, including mercury (Hg),

are deposited along with the particulate matter (PM) on

the filter tape. The deposit is automatically advanced

and analyzed by XRF for selected metals as the next

sample is being collected. Sampling and analysis are

performed continuously and simultaneously, except

during advancement of the tape (~20 sec) and during

daily automated quality assurance checks.

In 2007, through its Clean Air Excellence Award, the

EPA recognized the Xact 640 CEMS as an outstanding

achievement in innovative clean air technology. The EPA

also approved the Xact 640 CEMS as an alternative

method2 for periodic Method 29 testing and feed stream

analysis, as well as for monitoring emissions during plant

operation.

Features

• Automatic quality assurance, alarms, and control

features

• Gas phase calibration not required

• Identification and measurement of as many as 23

elements simultaneously (refer to the periodic table on

the Elements Supported page of this data sheet)

• Internal calibration check incorporated with every sample

analyzed

• Proven RTR/XRF technology demonstrated on the

ocean floor, Mars, and in thousands of beta attenuation

monitors

• Daily, automatic upscale, blank, and flow checks

• Recognized by the EPA as an innovative clean air

technology (Clean Air Excellence Award, 2007)

• Sampling, analysis, and near-real-time reporting

(every 15, 30, 60 and 120 minutes)

Benefits

• Single monitor platform for Hg and HAP metals monitor

compliance

• No PM monitor needed to comply with MATS

• May be used to meet 40 CFR Part 60 and 63 regulations

• Measures total mercury in μg/dscm

• Multi-metal analysis reduces expenses, time, and

resources

• Non-destructive analysis allows for sample archiving

• Sensitive and reliable (ng/m3 to μg/m3 range)

Request a quote for your customized Xact 640

monitoring system.

Applications

The Xact 640 monitoring system can simultaneously

identify and measure multiple metals in flue gas to

provide data for use in the following applications.

• Hg CEMS

• HAP metals CEMS

• Baselining a new process

• Optimization of emission controls

• Permitting

• Regulatory compliance

• Risk management

Xact1 640 Monitoring System

Data Sheet PGXACT640ENa

Heavy Metals Continuous Emissions

Monitoring System (CEMS)

Xact 640 Metals Monitor

1 Xact is a trademark of Cooper Environmental Services LLC.

2 Approved by way of alternative monitoring petition.
Specifications

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 1963 μg/dscm

Detection limits (IF, EPA IO 3.3)

3 Metal and sample time dependent; refer to the minimum detection limit

(MDL) data

Sampling and analysis times Every 15, 30, 60, 120 minutes, depending on the per sample mass

Calibration stability check frequency Automatically with each sample analyzed

Estimated recalibration frequency Annually, when manufacturer’s operating recommendations are followed

Sample flow rate TBD

Linearity Correlation coefficient >0.98

Size and weight (2 cabinets) • 19 inch w x 24 inch d x 19 inch h and 19 inch w x 24 inch d x 35 inch h

• 180 lbs

• 483 mm rack-mountable components

Required operating environment Lab environment with temperature controlled to 20±3°C (68°F)

Power requirements4 • 120 VAC/60 Hz @ 2-20 amp circuits

• 220 VAC/60 Hz 20 amp with an optional power converter

Outputs LAN (Ethernet) and USB ports for standard PC file transfer protocols

and networking

Options • Change or add elements

• Enclosures

• Remote control

• Remote polling

3 Detection limits are determined using 95% confidence interference-free data.

4 Power must be conditioned to maintain a factory warranty or service agreement.

Minimum Detection Limits (μg/m3)5

Element Atomic Number Sampling Time (mins)

15 30 60 120

Cr 24 0.14 0.05 0.018 0.006

Mn 25 0.14 0.05 0.018 0.006

Fe 26 0.38 0.13 0.048 0.017

Co 27 0.16 0.06 0.020 0.007

Ni 28 0.11 0.04 0.014 0.005

Cu 29 0.13 0.05 0.017 0.006

Zn 30 0.12 0.04 0.014 0.005

Ga 31 0.05 0.02 0.007 0.002

Ge 32 0.06 0.02 0.008 0.003

As 33 0.06 0.02 0.007 0.003

Se 34 0.07 0.02 0.009 0.003

Rb 37 0.17 0.06 0.022 0.008

Sr 38 0.22 0.08 0.028 0.010

Y 39 0.27 0.10 0.034 0.012

Mo 42 0.49 0.17 0.061 0.022

Ag 47 2.17 0.77 0.271 0.096

Cd 48 2.88 1.02 0.360 0.127

In 49 3.39 1.20 0.424 0.150

Sn 50 3.74 1.32 0.467 0.165

Sb 51 0.33 0.12 0.042 0.015

Ba 56 0.47 0.17 0.059 0.021

Pt 78 0.11 0.04 0.014 0.005

Au 79 0.12 0.04 0.014 0.005

Hg 80 0.09 0.03 0.012 0.004

Tl 81 0.09 0.03 0.012 0.004

Pb 82 0.11 0.04 0.014 0.005

Bi 83 0.12 0.04 0.015 0.005

5 Interference-free, 1 sigma

Xact 640 Performance
Power Generation

25 Harbor Park Drive

Port Washington, NY 11050

+1 516 484 3600 telephone

+1 888 873 7255 toll free US

Visit us on the Web at www.pall.com/power

Pall Corporation has offices and plants throughout the world. For Pall representatives in your

area, please go to www.pall.com/contact

Because of technological developments related to the products, systems, and/or services

described herein, the data and procedures are subject to change without notice. Please

consult your Pall representative or visit www.pall.com to verify that this information

remains valid.

© Copyright 2012, Pall Corporation. Pall, and are trademarks of Pall Corporation.

® Indicates a trademark registered in the USA. and ENABLING A

GREENER FUTURE are service marks of Pall Corporation.

PGXACT640ENa Produced in the USA December 2012

To see how Pall is helping enable a greener, safer and more sustainable

future, visit www.pall.com/green.

Elements Supported

Xact 640 monitoring systems identify and measure the

63 elements highlighted in the table below. Minimum

detection limits for the elements highlighted in blue can

be found on the Performance page of this data

sheet.

Ordering Information

To place an order or for more information about the

Xact 640 continuous emissions monitoring system,

contact your regional Pall representative or email us at

EnvironmentalSolutions@pall.com