Modem Battery Life; Monthly Data Transfer; Weekly Data Transfer; Daily Data Transfer - Honeywell Elster EK280 Applications Manual

EK280

8.1 Modem battery life

The modem battery life depends on various conditions such as ambient temperature and reception field
strength. The data given here is calculated for adverse conditions, i.e. battery life is normally longer. It can
however be even shorter in some cases. The data provided should therefore be taken as a guideline.
Not only the total duration, but also the number of time slots is relevant to battery life.
i
So for example the battery life for a monthly 4 hour time window is differs from that for four time
windows, each lasting 1 hour.
At low ambient temperatures, the data transfer duration is limited.
i
Please take into consideration the information given in chapter 8.2

8.1.1 Monthly data transfer

Battery life
(Years)
month-
1 hour
ly
4 hours
Readout
time
12 hours
window

8.1.2 Weekly data transfer

Battery life
(Years)
week-
1 hour
ly
Readout
time
2 hours
window

8.1.3 Daily data transfer

Battery life
(Years)
10 minutes
daily
15 minutes
Readout
time
30 minutes
window
1 hour
Application Manual
Readout duration (minutes)
5 10 15
12.0 12.0 10.0
12.0 12.0 10.0
12.0 11.4 9.4
Readout duration (minutes)
2 5 10
10.0 10.0 5.7
10.0 8.9 5.2
Readout duration (minutes)
1 2 5
6.5 3.8 1.7
6.2 3.7 1.7
5.3 3.3 1.6
4.1 2.8 1.5
30
9.0
8.2
6.3
15
4.0
3.7
75