We have ZR22G-100-S-A-E-T-T--E-A/CV/F1 Model Zirconia Oxygen analyser which is

We have ZR22G-100-S-A-E-T-T--E-A/CV/F1 Model Zirconia
Oxygen analyser which is Yokogawa make. I kept the analyser
in Flue gas path at Air pre heater area. My plant is 7.5MW
Biomass power plant. For a particular fuel, Coconut Husk
which contains Sodium and Potassium chlorides iam not
getting proper reading, Analyser output always Zero. I
calibrated the analyser and it is OK. For Other fuels like
Wood chips, Cholam waste, DOB, Groundnutshells, Ply wood
waste and all iam getting actual percentage of Oxygen. What
is the main reason behind this draw back?

Question Posted / sankarithi

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We have ZR22G-100-S-A-E-T-T--E-A/CV/F1 Model Zirconia Oxygen analyser which is Yokogawa make. I ke..

Answer / tarique

please check your heater which is used in zirconia
change your load air percentage in firing and observe
changing or not if changing means actual is zero

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We have ZR22G-100-S-A-E-T-T--E-A/CV/F1 Model Zirconia Oxygen analyser which is Yokogawa make. I ke..

Answer / haresh mod

Pls. set your fuel temperature bcs. normally zirconia o2 analyzer work on 800-900 deg. centigrade temperature.

So set the temp. still you not get result then pls regulate your flow and also with your process gas you have to ptovide atmospheric air with set pressure(>=1kg/cm2).

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