HOBO U-Shuttle (U-DT-x) Manual
1-800-LOGGERS 6
to power the shuttle’s clock without the main batteries for
extended periods.
If the shuttle’s clock backup battery runs low (2.66 V), the
shuttle will display a warning (“Low Shut Clk Bat”) when you
power it up. You should replace the battery as soon as you can.
This will enable you to change the main batteries in the field
whenever you need to, without stopping the shuttle’s clock.
The clock battery is “dead” at approximately 2.5 V.
Important:
If the shuttle’s clock stops (main and clock backup
batteries die or are removed), you must: 1) power the shuttle
with fresh batteries, 2) offload any unsaved datafiles from the
shuttle, and 3) relaunch the shuttle with HOBOware, which
synchronizes the shuttle’s clock and deletes all of the datafiles
from the shuttle’s memory.
Although it is possible to change the clock backup battery in the
field, this is not recommended. If you inadvertently disconnect
the wires that attach the main batteries to the circuit board,
the shuttle’s clock will stop. You could also drop and lose the
screws, or get the circuit board wet.
To change the clock backup battery:
1.
Turn off the shuttle and remove any cables or sensors.
2.
On the back of the shuttle case, slide the battery
compartment lid free. Do not remove the AA batteries.
3.
Remove the screws in the upper corners of the back of the
case, and the lower corners in the main battery
compartment. Set them aside.
4.
Carefully pull the case apart. The circuit board may stay in
the front half of the case, but it is attached to the main
battery compartment by a pair of wires. If you leave these
wires plugged in, the main batteries (if they are in good
condition) will power the clock while you change the clock
backup battery, so that you do not have to relaunch the
shuttle when you are finished.
Important:
The shuttle can be damaged by electrostatic
discharge. Take precautions when handling the circuit board.
5.
Lift out the circuit board and carefully push out the old
battery with a small blunt, nonmetallic instrument. Install a
new 3V CR1225 lithium battery, positive side facing up.
6.
Turn the circuit board over and press the leftmost (
on/off
)
button under the display. The shuttle should power up
normally and ask if you want it to look for a device. Press
the
on/off
button again to turn the shuttle off.
7.
Put the board back into the case. Close the case and
re-fasten the screws.
8.
Slide the lid onto the battery compartment until it snaps
into place.
9.
Check the shuttle’s clock in HOBOware. If the clock stopped
or is off by an hour or more, offload the datafiles from the
shuttle and relaunch it to synchronize the clock. The shuttle
will not read out and relaunch loggers if the shuttle needs
to be relaunched.
WARNING:
Do not install batteries backwards, recharge,
put in fire, expose to extreme heat, or mix with other battery
types, as the batteries may explode or leak. Contents of an
open or leaking battery can cause chemical burn injuries.
Replace all used batteries at the same time.
Recycle or dispose
of batteries according to applicable federal, state, and local
regulations.
Other Maintenance
Adjusting the LCD contrast
The shuttle’s LCD contrast is factory-set for optimal viewing
under most conditions. The contrast control is located inside
the shuttle’s case. To adjust it without opening the case, open
the battery compartment and insert a small flathead
screwdriver through the hole to the right of the batteries. Use
the screwdriver to
carefully
turn the contrast control.
-
+
+
-
Contrast
control
Screws
Alkaline
battery
compartment
Clock backup
battery
Wires to alkaline
battery
compartment
Contrast control
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