External Power Supply - Arexx BS-510 Mode D'emploi

If you have problems re-reading the sensor data, after the stand allone mode,
we suggest to turn on the PC and Templogger Software first! Then connect
the USB cable again (*), so the sensor data of the BS-500 can be transmitted
to the PC again.
(*) As different PC types have a lof of differently working USB ports problems
can arise. Then werecommend to disconnect the USB cable between the
BS-510 and the PC. The BS-510 receives the command to automatically start
downloading if it receives the 5 Volt USB voltage from the PC. Some PC's
turn the USB spanning a few times on and off during their start. Thiscan cause
data loss of the information stored in the BS-510. This can be solved when
you connect the USB cable only when the PC has started completely.
Important for PC's which are turned on with a BS-510 connected:
It can occur that the PC turns off the USB voltage if it goes into sleep modus
(this can be changed/adjusted under Windows)! If no external voltage is
connected, the BS-510 will not work anymore!
If the PC awakes from its sleep modus, the USB voltage can be turned on and
off shortly several times, so the BS-510 data can be lost.
Above problems only occur with some PC models!

External power supply

The module will operate in stand-alone mode as long as an external power
supply delivers the required DC-power. Data will be stored in the internal data-
flash memory. As soon as the DC-power is being removed and the module
switches off, a tiny set of the most recent data records may be missing in the
internal data-flash memory. This effect is caused by a data-cache (intermedi-
ate storage) method, in which data is being collected before writing a complete
record set to the flash memory.
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