E-CODER
®
)R450
i™
Installation and Maintenance Guide
21
Appendix A: E-CODER
®
)R450
i™
Flags
Description of Flags
The tables in this appendix describe the volume represented by the eighth digit by meter
size, and the flags used the by the E-CODER
®
)R450
i
™.
Register Size
Eighth Digit Resolution – Least Significant Digit
Residential (5/8" – 1" T-10)
1/10 Gallon or 1/100 Cubic foot.
Light Commercial and Industrial
(1-1/2" and 2" T-10; 1-1/2" – 4" HPT)
1 Gallon or 1/10 Cubic foot.
Large Commercial and Industrial
(6" – 12" HPT, HP III and TRU/FLO
®
)
10 Gallons or 1 Cubic foot.
Large Commercial and Industrial
(16" – 20" HPT)
100 Gallons or 10 Cubic feet.
Table 9 – Eighth Digit Resolution by Meter Size
Backflow Flag (Resets After 35 Days)
Based on reverse movement of the eighth digit. Eighth digit is variable based on the meter size.
No backflow event
Eighth digit reversed less than one digit.
Minor backflow event
Eighth digit reversed more than one digit, up to 100 times the
eighth digit.
Major backflow event
Eighth digit reversed greater than 100 times the eighth digit.
Leak Status Flag (Resets After 35 Days)
Based on total amount of 15-minute periods recorded in the previous 24-hour period.
Leak icon off
Eighth digit incremented less than 50 of the 96 days of 15-minute
intervals.
Flashing leak icon
Eighth digit incremented in at least 50 of the 96 days of 15-minute
intervals.
Solid leak icon
Eighth digit incremented in all of the 96 days 15-minute intervals.
Consecutive Days with Zero Consumption Flag (Out of Rolling 35 Days)
Number of days the “leak status” was at a minimum value.
Table 10 – E-CODER
®
)R450
i
™ Flags
Summary of Contents for E-CODER) R450i
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