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ZR Series Quick Tip
Technical Note
Filters for Oxygen Probes
Many industries use a variety of fuel sources such as natural gas, coal, oil, trash,
and biomass to fire their processes. When burned, coal and biomass release a
significant amount of carbon particulate known as fly ash. This fly ash can plug the
zirconia cell, resulting in a slow response or no response to changes in the oxygen
concentration.
Self-Cleaning Fly Ash Filter (M1234SE-A)
The self-cleaning fly ash filter (M1234SE-A) is a sintered filter that incorporates an
aerodynamic shield to deflect the particles and prevent fly ash build-up from
plugging the ZR22 Oxygen probe. This filter should be used whenever coal or
biomass is the primary fuel source.
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Filter material: Hastelloy X
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Base material: 316 SS
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Max. O.D.: 6.35cm (2.5in)
Max. operating temp: 700˚C (1292˚F)
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Pore size: 10 micron
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Summary of Contents for YOKOGAWA ZR Series
- Page 1 ZR Series Quick Tip Technical Note Filters for Oxygen Probes Many industries use a variety of fuel sources such as natural gas, coal, oil, trash, and biomass to fire their processes. When burned, coal and biomass release a significant amount of carbon particulate known as fly ash. This fly ash can plug the zirconia cell, resulting in a slow response or no response to changes in the oxygen concentration.
- Page 2 ZR Series Quick Tip: Filters for Oxygen Probes Standard Installation of the Self-Cleaning Fly Ash Filter (M1234SE-A) *Note: Prior to installation, clean the ZR22G detector end with a wire brush to remove any ash or dust. 1. Slide the closed end of the filter...
- Page 3 ZR Series Quick Tip: Filters for Oxygen Probes Dust and Oil Filter (E7042UQ) The dust and oil filter attaches to the end of the ZR22 oxygen probe, and is used for oil fired applications as well as black liquor recovery systems.
- Page 4 Trademarks Co-innovating tomorrow, OpreX and all product names of Yokogawa Electric Corporation in this bulletin are either trademarks or registered trademarks of Yokogawa Electric Corporation. All other company brand or product names in this bulletin are trademarks or registered trademarks of their respective holders.
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