HOBO State Data Logger (UX90-001x) Manual
1-800-LOGGERS (564-4377) • 508-759-9500
www.onsetcomp.com • [email protected]
© 2012 Onset Computer Corporation. All rights reserved. Onset,
HOBO, and HOBOware are trademarks or registered trademarks of
Onset Computer Corporation. All other trademarks are the property
of their respective companies.
15430-A MAN-UX90-001
Protecting the Logger
The logger is designed for indoor use and can be permanently
damaged by corrosion if it gets wet. Protect it from
condensation. If the message FAIL CLK appears on the LCD
screen, there was a failure with the internal logger clock
possibly due to condensation. Remove the battery immediately
and dry the circuit board. It is possible to dry the logger with a
hair dryer, but do not let the board get too hot. You should be
able to comfortably hold the board in your hand while drying it.
Note:
Static electricity may cause the logger to stop logging.
The logger has been tested to 8 KV, but avoid electrostatic
discharge by grounding yourself to protect the logger. For more
information, search for “static discharge” in the FAQ section on
onsetcomp.com.
Battery Information
The logger is installed with a 3V CR2032 battery (HRB-TEMP).
Expected battery life varies based on the temperature where
the logger is deployed and the frequency (the logging interval
and the rate of state changes and/or events) at which the
logger is recording data. A new battery typically lasts 1 year
with logging intervals greater than 1 minute and when the
input signals are normally open or in the high logic state.
Deployments in extremely cold or hot temperatures, logging
intervals faster than 1 minute, or continuously closed contacts
may reduce battery life.
The logger can also be powered by the USB cable when the
remaining battery voltage is too low for it to continue logging.
Connect the logger to the computer, click the Readout button
on the toolbar, and save the data as prompted. Replace the
battery before launching the logger again.
To replace the battery:
1.
Open the battery door on the top of the logger.
2.
Use the tab on the built-in battery removal tool inside the
compartment to remove the battery.
3.
Place the circular battery removal tool around the negative
side of the new battery with the tab up. Insert the new
battery with the positive side facing out. The LCD should
display “HOBO” briefly after correctly installing the battery.
WARNING:
Do not cut open, incinerate, heat above 85°C
(185°F), or recharge the lithium battery. The battery may
explode if the logger is exposed to extreme heat or conditions
that could damage or destroy the battery case. Do not dispose
of the logger or battery in fire. Do not expose the contents of
the battery to water. Dispose of the battery according to local
regulations for lithium batteries.
HOBOware provides the option of recording the current battery
voltage at each logging interval, which is disabled by default.
Recording battery life at each logging interval takes up memory
and therefore reduces logging duration. It is recommended you
only record battery voltage for diagnostic purposes. Even with
the channel disabled, a bad battery event will still be recorded.
Tab on battery-removal tool
Battery door
CR2032 battery;
positive side
facing out
