HOBO U30 Station (NRC) User’s Guide
53
Problems and Solutions
The following chart lists common problems you may encounter with the
HOBO U30 Station and solutions.
Problem Solution
No status
indicators are
blinking
The logger has not have been launched, launch
logger with HOBOware.
The indicators are very faint under direct sunlight. If
no indicators appear to be blinking, shield the logger
from the light and check the indicators again.
Check the status with HOBOware Pro. Make sure the
battery power is not too low.
The memory may be full. Read out the logger and re-
launch. You may also want to enable Wrap Around
When Full so that the HOBO U30 Station can
continuously log and overwrite oldest data. See the
Launching section.
You need to stop
logging
Connect to the HOBO U30 Station to a USB cable and
stop logging with HOBOware Pro. Or, unplug the solar
panel or AC adapter and then unplug the battery. You
will need to re-launch the logger to resume logging.
Too much battery
power is being
used
Make sure the solar panel is large enough for your
application and that it is installed properly and
functioning. That should provide enough power to
recharge the battery during the day. Or, use the AC
adapter to recharge the battery.
See Maximizing Battery Life on page 38.
54
HOBO U30 Station (NRC) User’s Guide
Problem Solution
The power has run
out
Try recharging the battery by connecting the AC
Adapter for 12 hours.
If the HOBO U30 Station is completely dead (below
3.5 volts) you will need to charge the battery with an
external battery charger or power supply or replace
it. See page 41 for details.
If the battery will not hold any charge (i.e. it quickly
fails even after a full 12 hour charge), you may need
to replace the battery. Contact your Onset Authorized
Dealer or Onset Technical Support.
The logger uses very durable, high-capacity Flash
memory. With this memory, data is retained even when
the battery runs out of charge.
Important:
Do not relaunch the logger until the data has
been recovered. If, the battery cannot be recharged and,
you are still unable to read out the HOBO U30 Station,
contact the vendor that sold it to you. It may be possible
to retrieve the logged data.
Only some of the
installed sensors
are logging
Check for a loose connection.
If using the Smart Sensor Expander board, make sure
it is connected to the built-in Smart Sensor board
with the expander cable.
Make sure you have not exceeded 100 meters (328
ft) of network cable for all Smart Sensors.
Make sure you have not exceeded 15 data channels.
Use HOBOware Pro to see a list of all installed
sensors and Analog Sensor Ports in the Launch
window. The Smart Sensors are listed in ascending
order by serial number. If more than 15 data channels
are connected, the devices with the higher serial
numbers will be ignored and their data will not be
recorded.
