Onset hobo u30, Руководство пользователя

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Onset Computer Corporation
User’s Guide - 48 - HOBO U30 Station/RC
B a t t e r y V o l t a g e
The normal operating range for the battery is 3.9 to 4.3 volts. If the voltage drops below the normal
range, the HOBO U30 Station will change behavior to maximize the remaining voltage until the battery
can be recharged. Alternatively, you may occasionally see a voltage level higher than 4.5 volts.
The following table explains what occurs at various voltage levels. The voltage used in determining
behavior in the chart is based on a 20-minute average. Even though battery voltage is recorded in the
data file at each logging interval and sent to HOBOlink at each connection, the HOBO U30 Station is
operating independently on its own internal 20-minute average. This ensures that the appropriate action is
taking place within the HOBO U30 Station regardless of how frequently it is logging and connecting to
HOBOlink.
4.3 to 4.5 volts
The battery is being charged.
4.3 volts
The battery is fully charged.
4.05 volts
Level at which HOBOlink will notify you that the battery is low (if you have enabled a system alarm for low
battery).
3.5 to 3.9 volts
Level at which the HOBO U30 Station will stop trying to connect to a cellular tower. Logging will continue.
When the battery power returns to above 3.9 volts (e.g. the sun comes out or the AC adapter has been
plugged in), calls to HOBOlink will resume.
3.0 to 3.6 volts
Level at which the HOBO U30 Station will perform a safe shutdown. Logging will stop and no calls will be
made to HOBOlink. Use the AC adapter to recharge the battery (leave it plugged in for twelve hours). Plug
the solar panel back in when you’ve finished recharging (plug the battery in first if you unplugged it). The
system will resume calls, but you will need to relaunch it using HOBOlink (select Force Relaunch on Next
Connection in Launch Configuration). You may also want to do a full readout before relaunching to be sure
you have all the data from the logger.
Approximately 3.0 volts
The battery is too low to safely be charged with the HOBO U30 Station and may need to be replaced.
Connecting the AC adapter at this point will not recharge the battery. To recharge the battery, a separate
battery charger will be required. See page 59 for details.
Important : Do not relaunch the logger until the data has been recovered. The logger uses very durable,
high-capacity Flash memory. With this memory, data is retained even when the battery runs out of
charge. After you replace the battery, attempt to read out the data. If you are still unable to read out the
station once the battery has been replaced, contact the vendor that sold it to you. It may be possible to
retrieve the logged data.