CEM Specialties Inc.

Process & Emission Monitoring Specialists

 

 

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CEM Specialties Inc. 1100 Dearness Drive London, Ontario
Canada  N6E 1N9
Tel: 519-681-9595
Fax: 519-681-8799
Toll Free: 1-866-236-7732
admin@cemsi.on.ca

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Comparison
of Measuring Devices for Stack Emissions

 

Opacity

 

Dust / Opacity

Dust

Soot

Dust

Dust

Optical Systems

 

Tribo

 

Beta

Transmission

Back
Scattering

Reflec-
tion

Device

D-R216  

D-R
216 OD

D-R
280-10
 

D-R
280-10 OP
 

D-R
281 AV
 

D-R
290
 

D-R
300-40
 

D-R
300
 

OF
1200
 

D-RX
250
 

F-904  

TV  

X

 

X

X

 

X

  X  

  X  

 X  

X

 X  

US EPA  

 

 

 

 

X

X

 

 

 

 

 X  

in-situ  

X

X

X

X

X

X

  X  

  X  

 

 X  

 

extractive

 

 

 

 

 

 

 

 

X 

 

 X  

Automatic
Zero and
Span Check
 

 

 

 

  X  

  X  

X

  X  

  X  

 X  

 X  

 X  

Automatic
Dirty
Window
Correction
 

 

 

  X  

  X  

  X  

X

  X  

 X  

N/A  

N/A  

N/A  

Heated
End Plane
 

X

X

  X  

  X  

  X  

  X  

  X  

 X  

N/A  

N/A  

N/A  

Fail
Safe
Shutters
 

X

X

  X  

  X  

  X  

  X  

  X  

 X  

N/A  

N/A  

N/A  

Optical
Transmission
Principle

X

X

  X  

  X  

  X  

  X  

 

 

 

 

 

Back
Scattering
Principle
 

 

 

 

 

 

 

  X  

 X  

 

 

 

Light
Source
 

Halo-
gen

Halo-
gen

Halo-
gen

Halo-
gen

Halo-
gen

LED  

Halo-
gen

Halo-
gen

VIS

N/A

N/A

Tribo
Electrical
Principle
 

 

 

 

 

 

 

 

 

 

X  

 

Beta-
Absorption  

 

 

 

 

 

 

 

 

 

 

  X  

Light
Reflection  

 

 

 

 

 

 

 

 

  X  

 

 

Dual
Channel
Capability
 

 

 

 

 

  X  

  X  

 

 

 

 

 

Switcheable
Ranges
 

 

 

 

 

  X  

  X  

X
  opt.  

  

  X  

 

X
  opt.  

Remote
Control
Unit

 

 

 

 

  X  

  X  

 

 

 

X  

 

Opacity
(single
path)
 

 

 

 

 

  X  

  X  

 

 

 

 

 

Opacity
(dual
path
 

  X  

X

  X  

  X  

  X  

  X  

 

 

 

 

 

Extinction

 

X

  X  

  X  

  X  

  X  

 

 

 

 

 

Isocinetic
Sampling

N/A  

N/A

N/A  

N/A  

N/A  

N/A  

N/A  

N/A  

N/A  

N/A  

 X   opt.  

Sample Line
Length

N/A  

NA

N/A  

N/A  

N/A  

N/A  

N/A  

N/A  

1..20
m  

N/A  

1..20
m  

Calibrating
Capability
in mg/m

 

X

X

  X  

  X  

  X  

  X  

 

 

  X  

 X  

Calibrating
Capability
in mg/Nm
(wet basis)
 

 

 

 

 

 

 

 

 

 

 

 X  

Calibrating
Capability in
Soot Number

 

 

 

 

 

 

 

 X  

 X

 

 

Measuring
Ranges

25..
100%  

0.2..1.6
Ext

0.1..1.6
Ext  

0.2..0.8
Ext
25..
100%

0.1..1.6
Ext
20..
100%

0.1..1.6
Ext
20..
100%

1...
1000
mg/m3

3RZ

1, 2, 3,
RZ

2..100
mg  

0.1..
1000
mg/m
3

Detection
Limit at
Duct Diameter
1 m*

 

20
mg/m
3

10
mg/m
3

10
mg/m
3

10
mg/m
3

10
mg/m
3

0.01
mg/m
3

0.06
RZ

0.1
RZ

 

0.01
mg/m
3

Detection
Limit
at Duct Diameter
5 m*

 

8
mg/m
3

2
mg/m
3

2
mg/m
3

2
mg/m
3

2
mg/m
3

0.01
mg/m
3

0.06
RZ  

0.1
RZ  

 

0.01
mg/m
3

Sampling/ Heavy
Metal Analysis

 

 

 

 

 

 

 

 

 

 

 X  

* @ 4 m particle size

 

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