Calculation example 1, Calculation example 2, Calculation example 1 calculation example 2 – Xylem CHATTER Hardware Manual User Manual
Page 40
Calculation Example 1
Chatter basic consumption per day (fixed) =
1.0
No. of logs per day @sensor consump.=2mA
1
x
0.1 = 0.1
No. of logs per day @sensor consump. =4mA
-
x
0.2 =
-
No. of event logs per day @sensor consump.=2mA -
x
0.1 =
-
No. of event logs per day @sensor consump. =4mA -
x
0.2 =
-
No. of calls per day
1
x
3 = 3.0
No. of alarm calls per day
0.01
x
3 = 0.03
Consumption per day (total):
4.13
Battery lifetime in days:
15000/consump. per day [day] =
3632.1
Battery lifetime in months:
Battery lifetime [days]/30 [months] =
121.1
Battery lifetime in years:
Battery lifetime [months]/12 [years] = 10.0 yrs
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Calculation Example 2
Chatter basic consumption per day (fixed) =
1.0
No. of logs per day @sensor consump.=2mA
24 x
0.1 = 2.4
No. of logs per day @sensor consump. =4mA
-
x
0.2 =
-
No. of event logs per day @sensor consump.=2mA 60 x
0.1 = 6.0
No. of event logs per day @sensor consump. =4mA -
x
0.2 =
-
No. of calls per day
-
x
3 =
-
No. of alarm calls per day
-
x
3 =
-
Consumption per day (total):
9.4
Battery lifetime in days:
15000/consump. per day [day] =
1595.7
Battery lifetime in months:
Battery lifetime [days]/30 [months] =
53.2
Battery lifetime in years:
Battery lifetime [months]/12 [years] = 4.4 yrs
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Data Logger
40
GB Chatter Hardware Manual 100416