SES-imagotag GmbH E00009 Manual De Usuario
Page 20 of 29
8
Battery lifetime
For the definition of N update/day following requirements apply to reach the specified
lifetime:
lifetime:
l
The radio sync quality between labels and access points has to be “PERFECT” or
“GOOD”.
“GOOD”.
o
To comply with these specifications, a Site Survey according to imagotag
guidelines is necessary.
guidelines is necessary.
l
The declared number of updates per day is an average value applied on on the specified
lifetime.
lifetime.
o
It’s not allowed to exceed this number more than 20 updates per day.
l
The most of the time the operation temperature of the ESLs has to be 21° C.
l
To reach the specified lifetime, the requirements regarding see Storage and ware-
housing on page 19 also needs to be observed.
housing on page 19 also needs to be observed.
l
Performing less than specified updates doesn't extend the battery lifetime significantly