1000475V01E DOC_Operation Manual LIBERO Cx BLE.docx | Page 10 / 34
4.2
Logger service life / battery runtime
PDF Loggers LIBERO Cx BLE are designed for an extended usage period of up to 3 years. The actual
service life is reduced by operation at low temperatures (especially below 0 °C) and frequent use of
Bluetooth® connection to a smart device.
Shortening the period of use
Should the period of use for the devices be deliberately limited to 12 or 24 months, the user can order
this option from ELPRO as a factory-made configuration.
Note: This factory-configured expiry date cannot be reset by the user by reconfiguring with
liberoCONFIG.
Reaching the end date is indicated in the display by the message "EoL" (End-of-Life), the logger can no
longer be used.
Reduction of battery runtime
Depending on the Bluetooth® mode selected, there is a reduction in the service life due to increased
energy consumption, according to the following table:
Bluetooth® mode
Runtime
BLE permanently OFF
36 months
BLE temporarily ON (by pressing "Start" button)
24 months
BLE permanently ON
14 months
Conditions:
Measuring interval: 10 minutes, operating temperature range,
Customer usage behavior: average assumptions.
Battery warning
If the capacity of the battery has reached a minimum level, this is indicated by a warning symbol in the
logger display.
From this moment on, the logger should no longer be used and can therefore no longer be started. If
the logger is in "Run" mode, a remaining period of use of approx. 8-10 days can be assumed.
