<1. Overview>
1-1
IM 11M12G01-02EN 1sh Edition : Mar. 25, 2021-00
1. Overview
Zirconia Oxygen/Humidity Analyzer 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,
paper and pulp, food, or textiles, as well as incinerators and medium/small boilers. It can help
conserve energy in these industries.
The Zirconia Oxygen/Humidity Analyzer, Converter also contributes to preservation of the earth’s
environment in preventing global warming and air pollution by controlling complete combustion to
reduce CO2, SOx and NOx.
The ZR22G Separate type Detector uses a high-reliability Zirconia sensor, and its heater
can measure the gases directly.
For use in combustion gases at temperatures up to 1400°C, choose the general use 0.15 m long
detector, which is combined with the ZO21P, the high temperature probe protector.
The Zirconia Humidity Analyzer is used to measure the humidity of hot gases continuously in
driers which use hot gas or electricity as the heat source. It can also be used in a variety of
calibration display, oxygen concentration trend display, with easier operation and improvement
measurement and calculation as well as maintenance functions including self-test. Analyzer
calibration can also be fully automated — and the 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.
1.1 System Conguration
1.1.1 System 1
This is the simplest system consisting of a detector and a converter. This system can be
implemented for monitoring oxygen concentration in the combustion gases of a package
boiler, and can be implemented for monitoring humidity in a production process such as food
production.
the ZO21S standard gas unit is used for calibration.
Zero gas from this unit and span gas (air) is sent to the detector through a tube which is
connected during calibration.
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