High
Precision
Gas
Volume
Concentration
Measurement
With
KGD
MQ
520
Portable
Coal
Gas
Analyzer
Product
Overview
The
Portable
Coal
Gas
Analyzer
KGD-MQ-520
measures
gas
volume
concentration
using
advanced
non-dispersive
infrared
(NDIR)
technology,
electrochemical
sensing,
and
MEMS-based
thermal
conductivity
technology.
This
analyzer
provides
simultaneous
measurement
of
coal
gas
and
biogas
calorific
values
along
with
volume
concentrations
of
multiple
gases.
![KGD MQ 520 Portable Coal Gas Analyzer showing its compact design and display interface]()
Key
Features
-
Comprehensive
gas
analysis:
Measures
CO,
CO₂,
CH₄,
H₂,
O₂,
CₙHₘ
concentrations
and
calculates
calorific
values,
eliminating
need
for
separate
calorimeters
-
High
accuracy
technology:
NDIR,
TCD,
and
ECD
measurement
principles
ensure
minimal
cross-interference
between
gas
components
-
Portable
design:
Compact
9kg
unit
suitable
for
both
field
industrial
measurements
and
laboratory
analysis
-
Smart
power
management:
Intelligent
battery
system
with
soft-start
power
switch
prevents
low-power
operation
-
Data
management:
Automatic
data
storage
with
query/delete
functions
and
multiple
interface
options
for
data
transmission
-
Low
operational
cost:
No
chemical
reagents
or
complex
installation
required
compared
to
traditional
analysis
methods
Technical
Specifications
|
Parameter
|
Specification
|
|
Measured
Components
|
CO/CO₂/CH₄/H₂/O₂/C₂H₂/C₂H₄/CₙHₘ/Calorific
Value
|
|
Measurement
Principle
|
CO/CO₂/CH₄/C₂H₂/C₂H₄/CₙHₘ:
NDIR;
H₂:
TCD;
O₂:
ECD
|
|
Measurement
Range
|
CO/CO₂/CH₄/H₂:
(0-100)%;
O₂:
(0-25)%;
C₂H₂/C₂H₄/CₙHₘ:
(0-10)%
(Optional)
|
|
Linear
Error
|
CO/CO₂/CH₄/C₂H₂/C₂H₄/CₙHₘ:
±1%F.S.;
O₂/H₂:
±2%F.S.
|
|
Resolution
|
0.01%
|
|
Repeatability
|
≤
1%
|
|
Response
Time
|
T90
|
|
Dimensions
|
412
×
152
×
294
mm
|
|
Weight
|
9kg
|
|
Power
Supply
|
Built-in
rechargeable
lithium-ion
battery
with
12.6V
external
charger
|
Note:
CₙHₘ
represents
the
sum
of
other
hydrocarbons
except
methane.
