Honeywell UDA2182 Manual do Utilizador Página 226

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Appendices
214 UDA2182 Universal Dual Analyzer Product Manual January 2009
Softener Monitor
Softener monitoring by conductivity ratio gives a continuous indication of performance.
Sodium is typically more conductive than the hardness minerals it displaces, yielding a
higher conductivity at the outlet. A ratio approaching 1 indicates that hardness ions are
breaking through and that regeneration is needed.
(HARD) WATER SUPPLY
CELL 2
CELL 1
(SOFT) TREATED WATER
Softening Ratio =
Typical Ratio Range is 1 to 1.25
Cell1
Cell2
Cell1
Cell2
(HARD) WATER SUPPLY
CELL 2
CELL 1
(SOFT) TREATED WATER
Softening Ratio =
Typical Ratio Range is 1 to 1.25
Cell1
Cell2
Cell1
Cell2
Steam Power Measurements
The three conductivity measurements in power plants relate to water chemistry
parameters as follows:
Specific conductivity -- chemical treatment level
Cation conductivity -- total anion contaminants
Degassed conductivity -- non-volatile anion contaminants
Cation minus degassed conductivities -- carbon dioxide
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