Xylem MJK Chatter, Hardware Installation User Manual

Page: 40 / 50

Calculation Example 1

Chatterbasicconsumptionperday(fixed)=
   1 .0
No .oflogsperday@sensorconsump .=2mA 1 x 0 .1= 0 .1
No .oflogsperday@sensorconsump .=4mA - x 0 .2= -
No .ofeventlogsperday@sensorconsump .=2mA- x 0 .1= -
No .ofeventlogsperday@sensorconsump .=4mA- x 0 .2= -
No .ofcallsperday    1 x 3= 3 .0
No .ofalarmcallsperday   0 .01 x 3=0 .03
Consumptionperday(total):      4 .13
Batterylifetimeindays: 15000/consump .perday[day]=  3632 .1
Batterylifetimeinmonths: Batterylifetime[days]/30[months]= 121 .1
Battery lifetime in years
: Batterylifetime[months]/12[years]=10 .0yrs
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Calculation Example 2

Chatterbasicconsumptionperday(fixed)=
   1 .0
No .oflogsperday@sensorconsump .=2mA 24 x 0 .1= 2 .4
No .oflogsperday@sensorconsump .=4mA - x 0 .2= -
No .ofeventlogsperday@sensorconsump .=2mA60 x 0 .1= 6 .0
No .ofeventlogsperday@sensorconsump .=4mA- x 0 .2= -
No .ofcallsperday    - x 3= -
No .ofalarmcallsperday   - x 3= -
Consumptionperday(total):      9 .4
Batterylifetimeindays: 15000/consump .perday[day]=  1595 .7
Batterylifetimeinmonths: Batterylifetime[days]/30[months]= 53 .2
Battery lifetime in years : Batterylifetime[months]/12[years]= 4 .4yrs
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Data Logger
40 EN 6.10 Chatter Hardware Manual 1511