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(1) Gas extractor
ø
10/
ø
8
Teflon
tube
*1
*2
15˚ or larger
(6) 2-way
solenoid
valve
(6) 2-way
solenoid
valve
(2) Mist filter
Air filter
(4) Gas aspirator
(4) Gas
aspirator
Drain
(3) Safety
drain trap
Electronic
gas cooler
(5)
(8) Flowmeter
Infrared gas
analyzer
ZPG unit
(7) Membrane
filter
Exhaust
(10)
Zirconia
O
2
analyzer
Ball value
Drain pot
(11) NO
2
/NO converter
(for NO
X
measurement)
*1) Be sure to remove the moisture to be temperature 5ºC or lower from measuring gas by electronic cooler and water concentration
should be equalized in reference gas and sample gas.
*2) Be sure to use NO
2
/NO converter in case of measuring NO
x
.
*3) Connect between the valve and the terminal DO4 (allocated to driving the solenoid valve for auto calibration) of the analyzer.
(9) Standard gas
for zero calibration
Standard gas for
span calibration
Reference gas
(Wet N2 or
atmospheric air)
NO
NC
com
SV1
3-way
solenoid
valve
*3
*3
3.4.5 Pressure at sample gas outlet
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pressure.
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and reference gas.
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analyzer
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sensor used for measuring
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sample gas.
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cooler
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(6) Solenoid valve
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gas.
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