Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402 - Manual (Page 16)

IM 11M13A01-02E 1-1
1. Overview
1. Overview
The EXAxtZR Separate-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
Ϫsuch 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.
ZR22S Separate-type Explosionproof 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
protector. The 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 converter is equipped with various
standard functions such as measurement and calculation as well as maintenance func-
tions including self-test. Analyzer calibration can also be fully automated
Ϫ 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.
Some examples of typical system configurations are illustrated below: