4.
OPERATION AUTONOMY
The
LogBox BLE
comes with 4 AA alkaline batteries (1.5 V each) with a working temperature specification of -10 °C to 50 °C. They have a
capacity of 2000 mAh, which gives the typical duration of 2 years in the following configuration:
•
Log Interval: 5 minutes;
•
Bluetooth
Frequency: 1 second.
NXperience
, when fi
nalizing a configuration, displays a typical battery runtime estimate for the configuration being applied. For a battery life
e
stimate based on the device configuration, use it. The autonomy displayed by the configuration software is estimated and does not use information
about batteries’ curr
ent statuses. In addition, several factors may contribute to the failure of the autonomy presented. Therefore, follow the
information described in the text below to avoid premature w
ear of the batteries.
Very high (over 30 °C (86 °F)) or very low (below 10 °C (50 °F)) temperatures cause the battery chemistry to react outside typical operation
characteristics, reducing the typical range. Thus, when operating the device in these ranges, consider that the 2-year expectation can be reduced
considerably.
Very high temperatur
es (above 30 °C (86 °F)) or very low temperatures (below 10 °C (50 °F)) make the
LogBox BLE
circuit greatly increase its
consumption. Thus, when operating the device in these ranges, consider that the 2-year expectation can be reduced considerably.
Some scenarios can
greatly increase
LogBox BLE
consum
ption, thus, considerable reducing the battery service life expectancy. Here are some
e
xamples that may decrease battery life:
•
Alar
m:
Alarm occurrences more than once a day and wit
h a buzzer duration over 30 seconds.
•
Bluetooth:
Confi
guration management, monitoring, or downloads performed by the Bluetooth interface at a frequency higher than once a
month.
•
Data Do
wnload:
Downloads made by the Bluetooth interface, of the whole memory, with a frequency more than once a month.
•
Event Log:
Event
s that occur at a frequency greater than once every hour.
When necessary, th
e batteries can be replaced with any models that have characteristics similar to alkaline batteries (1.5 V). However, it is
re
commended to replace them with the same model that accompanies the
LogBox BLE
(
Energizer E91
) or
Energizer L91
(because it has
a higher
operation temperature range) in order to guarantee the estim
ated battery life expectancy and the specified job. If you choose to use another battery
model, it is necessary to check the working temperature and the capacity expectation of it.
Never mix batteries of different models, or new batteries with used ones. Whenever you are replacing the batteries,
replace all of them at the same time.
Check the batteries polarity before inserting them into the device. Never use an inverted battery.
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