Yokogawa IR400 - Manual (Page 10)

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IM 11G02N01-01E
1. OVERVIEW
This infrared gas analyzer (type: IR400) measures the concentration of NO, SO
2
, CO
2
, CO and CH
4
contained in sampling gas on the principle that different atomic molecules have an absorption spectrum in
the wave band of infrared rays, and the intensity of absorption is determined by the Lambert-Beer law.
Since this instrument incorporates a compact paramagnetic O
2
sensor, it allows measuring up to 5
components simultaneously by using the built-in O
2
sensor (up to 4 components if O
2
sensor is excluded).
Furthermore, use of a microprocessor or large sized liquid crystal display realizes improvement of
operability, accuracy and multi-functions.
This instrument is optimum for measuring combustible gas exhausted from boilers or incinerators, and it
is effective for steel gas analysis (blast furnace, steel converter, thermal treatment furnace, sintering
(Pellet equipment), coke furnace), storage and maturity of vegetable and fruit, biochemistry (microbe),
[fermentation], air pollution [incinerator, exhaust gas desulfurization, denitration], automotive emission
(excluding tester), protection against disasters [detection of explosive gas and toxic gas, combustion gas
analysis of new building material], growth of plants, chemical analysis [petroleum refinery plant,
petroleum chemistry plant, gas generation plant], environment [landing concentration, tunnel
concentration, parking lot, building management] and various physical and chemical experiments.