HOBO Waterproof Shuttle (U-DTW-1) Manual
1-800-LOGGERS 3 www.onsetcomp.com
Important: If the logger was launched with multiple logging
intervals, there will be no synchronizing delay. The logger will
start immediately with the last defined logging interval.
6. When the relaunch has completed, the green LED blinks for
15 minutes, or until you momentarily press the coupler
lever to stop it (press hard enough so the lever bends). If
the red LED blinks instead, there was an error, and the
logger may have stopped. Refer to “Troubleshooting” in this
manual for details.
7. Remove the logger from the coupler.
Checking Shuttle Status in the Field
The shuttle’s memory has 63 “banks.” One logger readout can
be stored in each bank. To check the shuttle’s memory and
batteries in the field, remove the logger and press the coupler’s
lever for at least three seconds (pressing hard enough so the
lever bends). When you release the lever, the green LED blinks
once for each unoccupied bank in the shuttle’s memory. (Press
the lever momentarily to stop the blinking, pressing hard
enough so the lever bends.)
If the shuttle’s batteries are running low, all of the shuttle
banks are full, or the clock has not been set, the red LED blinks.
(Press the lever momentarily to stop the blinking, pressing hard
enough so the lever bends) Use HOBOware to check the
shuttle’s battery level, available memory, and clock. You may
need to change the batteries, or offload the datafiles to the
host computer and delete them from the shuttle to free up
memory before you can continue reading out loggers.
Offloading Data to the Host Computer
You can offload the data stored in the shuttle even when the
batteries are depleted. Take the following steps:
1. Connect the shuttle to a host computer running HOBOware.
2. Follow the instructions in the HOBOware User’s Guide to
offload the new datafiles or access the Manage Shuttle
dialog. The Manage Shuttle dialog shows you how many
banks are occupied, and whether they have already been
offloaded and saved to the host computer.
3. Offload and save data from the banks of your choice. Refer
to the HOBOware User’s Guide for details on saving
datafiles offloaded from the shuttle.
4. Review the list of banks and delete any that are no longer
needed. Make sure the battery level is good, and change
the batteries now if they are weak. (If you change the
batteries in the field, the shuttle’s clock will stop, and the
shuttle will not read out loggers.) Update the shuttle’s
clock, if necessary.
5. When finished, disconnect the shuttle from the computer
and close the center cap securely.
Using the Shuttle as a Base Station
You can use the shuttle as a base station for any U-Series logger
with an optic USB interface. (This function is available even
when the batteries are depleted.) To use the shuttle as a base
station:
1. Connect the shuttle to the host computer running
HOBOware.
2. Attach a compatible logger and coupler.
3. Momentarily press the coupler’s lever (pressing hard
enough so the lever bends).
4. The amber LED blinks momentarily, then the green LED
should glow steadily to indicate that the logger is ready to
communicate with HOBOware. (If the red LED blinks
instead, the logger was not found. Make sure the logger
and coupler are aligned and seated properly, and that there
is no dirt or strong sunlight interfering with
communications.)
5. When finished, remove the logger from the coupler. The
green LED stops glowing when you disconnect the logger or
the USB cable.
Important: The Waterproof Shuttle cannot be used as a base
station with Pendant logger models UA-001 and UA-003
(including rain gauges RG3 and RG3-M) with serial numbers less
than 988278. These loggers require a BASE-U-1 for
communication with the host computer.
Indicator Lights
Green “OK” LED
The green “OK” LED blinks when HOBOware recognizes it as a
base station; when it finishes reading out and relaunching a
logger; and when you press the coupler lever to check the
shuttle’s status (see “Checking shuttle status in the field” for
details). Momentarily press the coupler lever to stop the
blinking (pressing hard enough so the lever bends).
The green LED glows steadily when the shuttle is being used as
a base station.
Amber “Transfer” LED
The amber “Transfer” LED blinks when the shuttle is reading
out a logger and relaunching it. Do not remove the logger when
the Transfer light is lit.
Red “Fail” LED
The red “Fail” LED blinks whenever the shuttle
encounters an error condition. Refer to “Troubleshooting”
for details.
All LEDs
All LEDs blink in unison when the shuttle has just been powered
up, either by installing fresh batteries or (if batteries are not
installed) by connecting to the computer’s USB port.
Troubleshooting
This section describes problems you may encounter while using
the shuttle.
Shuttle is not recognized by host computer
If HOBOware does not recognize the shuttle when you connect
it to the computer, simply disconnect and reconnect the
shuttle.
