Online
Gas
Analyzer
Dust
CEMS
Continuous
Particulate
Matter
Emission
Monitoring
System
>>Overview
It
consists
of
three
basic
components:
the
particulate
matter
monitoring
unit
(dust),
the
flue
gas
parameter
monitoring
unit
(temperature,
pressure,
flow
rate,
O2,
humidity),
and
the
data
acquisition
and
processing
unit.
The
smoke
and
dust
are
extracted
into
the
measurement
chamber
through
high-temperature
heating.
The
embedded
high-stability
laser
light
source
irradiates
the
smoke
particles,
and
the
intensity
of
the
laser
scattering
signal
is
positively
correlated
with
the
concentration
of
the
smoke
particles
being
irradiated.
The
instrument
detects
the
weak
light
scattering
signals
(intensity
signals
and
pulse
signals),
and
through
specific
algorithms,
the
concentration
of
smoke
and
dust
can
be
calculated.
>>Feature
1)
LCD
display
for
direct
reading
of
dust
concentration.
2)
Extractive
laser
forward
scattering
design,
unaffected
by
operating
conditions.
3)
High
precision,
good
stability,
and
fast
response
time
of
the
sensor.
4)
Single-end
installation
with
automatic
dual-range
switching
and
low
detection
limit.
5)
Modular
design
with
fault
alarm
codes
for
easy
maintenance
and
repair.
6)
Supports
RS485/standard
analog
output
and
local
dynamic
regulatory
control.
>>Principle
![Online Dust Cems Continuous Particulate Matter Emission Monitoring System]()
Optical
Section:
1.
The
optical
system
comprises
a
laser
light
source,
power
control
unit,
photoelectric
sensing
module,
and
scattered
light
reception
unit.
2.
A 650
nm
laser
beam
is
emitted
at
a
slight
angle
into
the
emission
source.
The
interaction
between
the
laser
beam
and
smoke/dust
particles
generates
scattered
light,
with
backscattered
light
entering
the
sensor
through
the
reception
system
and
being
converted
into
electrical
signals
for
processing.
Circuit
Section:
1. Implements
functions
including
photoelectric
conversion,
laser
beam
modulation,
signal
amplification,
demodulation,
light
source
power
control,
V/I
conversion,
and
HMI
display.
2.
Calibrator:
Generates
stable
optical
signals
to
perform
zero-point
calibration
and
range
calibration
for
the
instrument.
>>Main
technical
parameters
-
Dimensions
&
Weight: Φ158×275
mm
/
5
kg
-
Environmental
Requirements:
-
Temperature: -40ºC
to
65ºC
-
Humidity: 0-100%
RH
-
Measurement
Error: ±2%
FS
-
Media
Conditions:
-
Temperature: Up
to
300ºC (Customizable
for
higher
temperatures)
-
Display: 128×64
Graphic
LCD
-
Signal
Output: (4-20)
mA
-
Maximum
Load: 500
Ω
-
Sensitivity: 2
mg/m³
-
Measurement
Range:
-
Low: 0-50
mg/m³
-
High: 0-10
g/m³ (Customizable
ranges
available)
-
Applicable
Stack
Size: 1-15
m
-
Power
Consumption: 3
W
-
Power
Supply: DC
24
V
±10%
Optical
Section:
