My 5500sc AMC is displaying a ratio of 99999. What does this mean?

Document ID

Document ID TE2368

Version

Version 5.0

Status

Status Published

Published Date

Published Date 02/07/2018
Question
My 5500sc AMC is displaying a ratio of 99999. What does this mean?
Summary
5500sc AMC analyzer and ratio 99999
Answer
The ratio feature on the 5500sc AMC will display the ratio of chlorine to free ammonia as nitrogen. The highest ratio displayed goes from 5.06 to 1. The ratio of 99999 is universal for over range, meaning that the free ammonia breakpoint has been surpassed. At this point, more chlorine should be dosed to move backwards along the chloramination curve.

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