Overview - YOKOGAWA EXAxt ZR22G Technical Information

Direct in situ zirconia oxygen analyzer (applications volume)

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Overview

The EXAxt Zircon Oxygen Analyzer (Model ZR402G) is used to monitor and control the oxygen

concentration in combustion gases, in boilers and industrial furnaces, for wide application

in industries which consume considerable energy—such as steel, electric power, oil and

petrochemical, ceramics, pulp and paper, food, or textiles, as well as incinerators and medium/

small boilers. It can help conserve energy in these industries. The ZR402G also contributes

to preservation of the earth's environment in preventing global warming and air pollution by

controlling complete combustion to reduce CO

The ZR22G Detector uses a high-reliability Zirconia sensor, and its heater assembly can be

replaced on site. The detector is mounted, for example, on the wall of a flue and can measure the

gases directly. For use in combustion gases at temperatures up to 1400°C, choose the general-

use 0.15m long detector, which is combined with ZO21P-H, the high-temperature probe adapter.

The ZR402G converter is equipped with an LCD touch screen which has various setting displays,

a calibration display, oxygen concentration trend display, with easier operation and improvement

of display functions.

The ZR402G converter is equipped with various standard functions such as measurement and

calculation as well as maintenance functions including self-test. Analyzer calibration can also be

fully automated— and ZR40H, an automatic calibration unit, is available. Choose the detector

version which best suits your needs so that an optimal combustion control system can be

obtained.

Use this TI as a system selection guide and application note.

<1. Overview>

SOx and NOx.

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TI 11M12A01-01E

Mar. 14, 2017-00

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Exaxt zr402g