Yokogawa Integral Oxygen Analyzer ZR202 - Manual (Page 15)

IM 11M13A01-04E 1-1
1. Overview
1. Overview
The EXAxtZR Integrated type Explosionproof Zirconia Oxygen 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 EXAxtZR also contributes to preservation of the earth’s
environment in preventing global warming and air pollution by controlling complete
combustion to reduce CO
2 , SOx and NOx.
The EXAxtZR Integrated-type Explosionproof Zirconia Oxygen Analyzer integrates
both probe and converter. The analyzers need not use a sampling device, and allow
direct installation of the probe in the wall of a flue or furnace to measure the
concentration of oxygen in the stack gas of the temperature up to 700˚C.
The probe uses a high-reliability Zirconia sensor and a heater assembly that can be
replaced on site.
The analyzer is equipped with three infrared switches, which enable the user to operate
the equipment without opening the cover on site. Analyzer calibration can also be fully
automated and the automatic calibration unit is provided. Choose the equipment which
best suits your needs so that an optimal combustion control system can be obtained.
Some examples of typical system configuration are illustrated below: