DEB004H
Seite 54 von 68
14. März 2006
Operating Manual
6. Theoretical calculation of the battery life time
6.1. DL/N, series 64
Precondition/acceptance for the calculation
•
The calculation is not valid for the display battery
•
For the calculation the storage interval and the sampling interval is equal
•
The battery life time had been calculated for pressure and temperature measuring
at an ambient temperature of 20°C
storage interval = sampling interval
2 sec.
1 min.
15 min.
1 hour
24 hours
1 day
10 d
6 mts.
1 yr. 4 mts. 1 yr. 5 mts. 1 yr. 6 mts.
7 days
10 d*
8 mts.
3 yrs.
3 yrs. 8 mts.
3 yrs. 11
mts.
14 days
:
*
8 mts.
3 yrs. 4 mts. 4 yrs. 2 mts. 4 yrs. 6 mts.
30 days
:
*
8 mts.
3 yrs. 7 mts. 4 yrs. 7 mts.
5 yrs.
Data retrieval rate
180 days
:
*
8 mts.*
3 yrs. 9 mts.
4 yrs. 10
mts.
5 yrs. 4 mts.
Memory capacity (theoretical)
p or
ϑ
3 d
90 d
3 yrs. 8 mts.
14 yrs.10
mts.
256 yrs.
p and
ϑ
1.5 d
45 d
1 yr. 10 mts. 7 yrs. 5 mts.
178 yrs.
p
: Pressure
ϑ
: Temperature
:
:
The battery is empty before reading out the memory
*
: The memory is full before reading out
Further information
•
If only pressure or only temperature will be
recorded the battery life time is not considerably
longer
