User Manual

HOBO Occupancy/Light Data Logger (UX90-005x/-006x) Manual
1-800-LOGGERS 6 www.onsetcomp.com
When auto-calibrating from the logger (button calibrating):
1. Deploy the logger near the light to be monitored and turn
the light source on.
2. Press the Calibrate button for 1 second. The LCD screen will
display the signal strength of the light. The signal strength
should ideally be at least 3 bars. Orient the logger as
necessary to increase the signal strength.
3. Press the Calibrate button for 3 seconds while “HOLD”
appears on the LCD screen. Move your hand away from the
logger to prevent shadowing. The logger will count down to
the auto-calibration and then display either “PASS” or “FAIL”
after calibration is complete.
4. If the auto-calibration fails, point the sensor directly at the
light source and then repeat these steps.
If you cannot manipulate the light source, you can set the
calibration level in HOBOware. To do this:
1. Click the Advanced button in the Launch Logger window.
2. The lower the light level, the higher the sensitivity needs to
be to record changes between ON and OFF conditions.
Therefore:
• For rooms with low light levels, such as residential
environments, select “Set to maximum sensitivity,” which
has a threshold set to approximately 100 lux.
• For rooms with high light levels, such as retail
environments, select “Set to minimum sensitivity,” which
has a threshold set to approximately 500 lux.
Note: The sensor is sensitive to lights that emit high
amounts of infrared radiation like incandescent and
halogen bulbs. It is best to use auto-calibration when
possible when monitoring on/off conditions for lights with
high infrared radiation.
3. Click Save. Note that the selections will not take effect in
the logger until you launch it.
Reading Out the Logger
There are two options for reading out the logger: connect it to
the computer with a USB cable and read out it with HOBOware,
or connect it to a HOBO U-Shuttle (U-DT-1, firmware version
1.15m030 or higher) and then offload the data files from the
U-Shuttle to HOBOware. Refer to the HOBOware Help for details.
Recording Internal Logger Events
The logger records the following internal events to help track
logger operation and status:
Internal Event Name Definition
Host Connected The logger was connected to the computer.
Started The Start/Stop button was pressed to begin
logging.
Stopped The logger received a command to stop
recording data (from HOBOware or by pushing
the Start/Stop button).
Internal Calibration The logger was calibrated via auto-calibration
(button calibration).
Host Calibration The logger was calibrated via HOBOware.
Calibration Failure Calibrating the logger has failed.
Button Up/Button
Down
The Start/Stop button was pressed for
1
second.
Safe Shutdown The battery level dropped below 2.5 V; the
logger performs a safe shutdown.
Mounting the logger
There are several ways to mount the logger using the materials
included:
• Use the four built-in magnets on the back of the logger to
mount it to a magnetic surface.
• Attach the Command strip to the back of the logger to
mount it a wall or other flat surface.
• Use the double-sided tape to affix the logger to a surface.
• Insert the hook-and-loop strap through the mounting
loops on both sides of the logger to mount it to a curved
surface, such as a pipe or tubing.
Deployment Guidelines
The occupancy sensor is a pyroelectric infrared (PIR) sensor that
detects variations in infrared radiation that occur when there is
movement by a person (or object) that is different in
temperature from the surroundings. This means the sensor can
detect the motion of people by their body temperature. It may
not detect a change when there is no movement or no
temperature change in the heat source. It may also detect the
presence of heat sources other than the human body. Do not
install it where a heat source other than motion will trigger an
event. Reflections from mirrors or windows can also cause
unwanted events.