HOBO Waterproof Shuttle (U-DTW-1) Manual
1-800-LOGGERS 4
www.onsetcomp.com
Red “Fail” LED blinks
The red “Fail” LED blinks (for 15 minutes, or until you press the
coupler lever, pressing hard enough so the lever bends)
whenever the shuttle encounters an error. There are several
conditions that might cause an error:
•
Shuttle is full:
If the red LED blinks when you try to read
out a logger, check whether all of the banks are full, as
described in “Checking shuttle status in the field.” Or, use
HOBOware to check the shuttle’s memory.
•
Shuttle batteries are low:
If you cannot read out any
loggers at all, check the logger’s status, as described in
“Checking shuttle status in the field,” or use HOBOware
to check the shuttle’s batteries. The batteries may simply
need to be replaced.
•
Compatibility:
The shuttle cannot read out or relaunch
loggers that were last launched from HOBOware prior to
version 2.2. You will need to read out these loggers on
the host computer and relaunch them in HOBOware 2.2
or greater before you can use them with the shuttle.
•
Shuttle clock is not set:
The shuttle has experienced a
power failure that caused the clock to reset. You must
use HOBOware to offload the files that are already on the
shuttle, then relaunch the shuttle before you can read
out another logger.
•
Can’t communicate with logger:
Remove the logger and
coupler. Inspect them and the shuttle to ensure that all
are free of dirt that could block the optic communication
sensor. Carefully reassemble the shuttle, coupler, and
logger, and make sure they are all seated properly. Shield
the shuttle from strong sunlight, if applicable, which can
interfere with optic communications.
•
Other logger problems:
If you can read out some loggers
but not others, or if you cannot read out any loggers
even with fresh batteries in the shuttle, check the loggers
in HOBOware. Make sure their batteries are at
acceptable levels and that there is no “corrupted header”
message.
Amber “Transfer” LED stays on without blinking
The amber light is magnetically activated when you press the
coupler lever. If it glows steadily at any other time, the magnet
in the lever may be too close to the magnetic switch in the
shuttle, or another strong magnet may be present. Try bending
the lever away from the coupler to reduce the magnet’s effect.
LEDs do not function
If the LEDs are not functioning at all, the batteries may be
completely exhausted. To test this, attach the shuttle to the
host computer and check the battery level. The shuttle should
be able to communicate with the host computer, blink its LEDs
normally, and perform as a base station even when the
batteries are missing or depleted.
Replacing the Shuttle’s Batteries
The shuttle’s batteries should last about one year or at least 50
complete memory fills in typical conditions. When the shuttle’s
batteries run low (2.2 V or less), any logger data that is already
in the shuttle will remain safe, but the shuttle will not read out
another logger until its batteries are replaced.
To avoid battery problems, always check the shuttle’s batteries
in HOBOware before going into the field, and replace them if
needed. If you cannot replace the bad batteries right away, you
should remove them as soon as possible to ensure that they do
not leak and damage the shuttle.
To change the shuttle’s batteries:
1.
Work over a clean surface to provide a safe platform for the
disassembly.
2.
Unscrew the center cap on the shuttle. If the cap is too tight
to loosen by hand, insert a screwdriver through the lanyard
hole and rotate counterclockwise until the cap is loosened.
3.
Use the center cap to help you carefully pull the rubber
loop free of the large cap. The large cap cannot be removed
while the rubber loop is in place.
4.
Turn the large cap counter-clockwise slightly, then pull it
off.
5.
Turn the shuttle over and tap it gently. The circuit board
should slide into your hand.
