Hobo U12-008 Manual
Text of the manual
HOBO® U12 4-External Channel
Outdoor/Industrial Data Logger
(Part # U12-008)
© 2010 Onset Computer Corporation. Onset and HOBO are registered trademarks of Onset Computer Corporation. Other products and brand names
may be trademarks or registered trademarks of their respective owners.
Part #: MAN-U12008, Doc #: 13132-C
Inside this package:
• HOBO U12 4-E
HOBO® U12 4-External Channel Outdoor/Industrial Data Logger
2
4-20mA Input Cable
This cable (part number CABLE-4-20mA) measures current
from 0 to 20.1 mA. Do not expose to current above 20 mA or to
negative current. Do not cut off the end of the gray cable where
it connects to the blue and yellow wires, as it contains the
precision resistor required for cur
HOBO® U12 4-External Channel Outdoor/Industrial Data Logger
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7. Make sure the desiccant cartridges are fresh. (If you are
using the logger for the first time, remove the two desiccant
cartridges from the foil pouch and install them in the cavity
at the top of the case.) Cartridges are blue when new, and
fade to pale pink when they need to be replaced. If t
HOBO® U12 4-External Channel Outdoor/Industrial Data Logger
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protected from moisture and other environmental factors that
could damage it. To mark an event, press the button for at least
one second. Both a button up and a button down event will be
recorded.
The logger stores 64K of data, and can record up to 43,000
samples and events combined.
Operation
A
