Onset UX90 Operating Manual
HOBO® Occupancy/Light
Data Logger (UX90-005x/-006x) Manual
The HOBO Occupancy/Light data logger monitors room occupancy up to 5 or 12 meters away
(depending on the model) as well as indoor light changes with its integrated sensors. Using
HOBOware®, you can easily configure both channels to record occupancy and light on and off
conditions for building energy audits. This compact data logger has a built-in LCD screen for
checking status, remaining battery level, and memory consumption. You can also use the LCD
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HOBO Occupancy/Light
Data Logger
Models: UX90-005
UX90-005M
UX90-006
UX90-006M
Included Items:
• Command™ strip
• Double-sided tape
• Hook & loop strap
Required Items:
• HOBOware 3.3 or later
• USB cable (included with
software)
Accessories:
• Light pipe (UX90-LIGHT-
PIPE-1)
• U-Shuttle (U-DT-1)
screen to quickly calibrate the logger to the light level in the room or select preset sensitivity
thresholds with HOBOware. There are two models of both types of loggers: the UX90-005/-006
has a memory capacity of 128 KB while the UX90-005M/-006M has 512 KB.
Specifications
Occupancy Sensor
Detection Range UX90-005x: maximum 5 m (16.4 ft)
Detection Performance UX90-005x: 94° (±47°) Horizontal; 82° (±41°) Vertical (see Figure A)
Detection Zones UX90-005x: 64 (see Figure A)
Light Sensor
Light Threshold > 65 lux
Light Type LED, CFL, fluorescent, HID, incandescent, natural
Logger
Memory Modes Wrap when full or stop when full
Start Modes Immediate, push button, date & time, or next interval
Stop Modes When memory full, push button, or date & time
Time Accuracy ±1 minute per month at 25°C (77°F) (see Plot A)
Power Source One 3V CR2032 lithium battery and USB cable
Battery Life 1 year typical use
Memory UX90-005/-006: 128 KB (84,650 measurements, maximum)
Download Type USB 2.0 interface
Full Memory Download Time 10 seconds for 128 KB, 30 seconds for 512 KB
Operating Range Logging: -20° to 70°C (-4° to 158°F); 0 to 95% RH (non-condensing)
LCD LCD is visible from: 0° to 50°C (32° to 122°F); the LCD may react slowly
Size UX90-005x: 3.66 x 8.48 x 2.36 cm (1.44 x 3.34 x 0.93 in.)
Weight 30 g (1.06 oz)
Environmental Rating IP50
UX90-006x: maximum 12 m (39.4 ft)
UX90-006x: 102° (±51°) Horizontal; 92° (±46°) Vertical (see Figure B)
UX90-006x: 92 (see Figure B)
UX90-005M/-006M: 512 KB (346,795 measurements, maximum)
Launch/Readout: 0° to 50°C (32° to 122°F) per USB specification
Occupancy Sensor Range: 20° to 60°C (-4° to 140°F); 15 to 85% RH
(non-condensing)
or go blank in temperatures outside this range
UX90-006x: 3.66 x 8.48 x 2.87 cm (1.44 x 3.34 x 1.13 in.)
The CE Marking identifies this product as complying with all relevant
directives in the European Union (EU).
15433-H
HOBO Occupancy/Light Data Logger (UX90-005x/-006x) Manual
Specifications (continued)
Plot A: Time Accuracy
Horizontal Horizontal
X-Y Cross Section X-Y Cross Section
Figure A: UX90-005 Detection Area Figure B: UX90-006 Detection Area
Vertical
Vertical
Logger Components and Operation
Battery Tray
Start/Stop Button
Mounting
Loop
LCD Screen
Start/Stop Button: Press this button for 3 seconds to start or
stop logging data. This requires configuring the logger in
HOBOware with a push button start or stop (see Setting up the
Logger). You can also press this button for 1 second to record
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USB Port
Calibration Button
Occupancy Sensor
Light Sensor
Mounting
Loop
an internal event (see Recording Internal Logger Events) or to
turn the LCD screen on if the option to turn off the LCD has
been enabled (see Setting up the Logger).
Battery Tray: Remove the battery tray (not visible in the
diagram) on the top of the logger to access the logger battery
(see Battery Information).
Calibration Button: Press this button to calibrate the logger for
the light you will be monitoring. See Calibrating the Light
Sensor for more details.
Light Sensor: This built-in sensor monitors light on and off
conditions.
HOBO Occupancy/Light Data Logger (UX90-005x/-006x) Manual
Mounting Loops: Use the two mounting loops to mount the
logger with the hook-and-loop strapping (see Mounting the
Logger).
Occupancy Sensor: This sensor determines whether the room is
occupied or unoccupied. The UX90-005x model is shown here.
USB Port: Use this port to connect the logger to the computer
or the HOBO U-Shuttle via USB cable (see Setting up the Logger
and Reading Out the Logger).
LCD Screen: This logger is equipped with an LCD screen that
displays details about the current status. This example shows all
symbols illuminated on the LCD screen followed by definitions
of each symbol in the following table.
LCD Symbol Description
The logger is waiting to be launched. Press and
hold the Start/Stop button for 3 seconds to launch
the logger.
The logger has been launched with a push button
stop enabled; press and hold the Start/Stop
button for 3 seconds to stop the logger. Note: If
you also launched the logger with a push button
Start, this symbol will not appear on the display
for 5 minutes.
The battery indicator shows the approximate
battery power remaining.
If the logger has been configured to stop logging
when memory fills, the memory bar indicates the
approximate space remaining in the logger to
record data. In this example, the logger memory is
almost full.
If the logger has been configured to never stop
logging (wrapping enabled), then a single block
will blink starting at the left and moving right over
time. Each block represents a segment of memory
where the data is being recorded. In this example,
the middle block is blinking.
LCD Symbol Description
Time display when logger is logging:
This shows the total amount of time the room has
been occupied or the light has been on since
logging began, ranging from seconds to days. This
example indicates the room has been occupied or
the light has been on for a total of 5 minutes and
38 seconds. The logger must be launched with the
LCD set to show “Time” for this symbol to display.
Time display when logger is stopped:
This indicates the logger has been configured to
start logging on a particular date/time. The display
will count down to the start date/time until
logging begins. In this example, 5 minutes and 38
seconds remain until logging will begin.
This shows the percentage of time the room has
been occupied or the light has been on since
logging began. This example indicates the room
has been occupied or the light has been on for a
total of 24% of the time since logging began. The
logger must be launched with the LCD set to show
“%” for this symbol to display.
The logger has been stopped.
Notes:
• You can disable the LCD screen when logging. Select “Turn
LCD Off” when setting up the logger as described in the
next section. When this option is enabled, you can still
temporarily view the LCD screen by pushing the Start/Stop
button or Calibration button for 1 second. The LCD will
then remain on for 10 minutes.
• When the logger has stopped logging, the LCD screen will
remain on until the logger is offloaded to a computer or
HOBO U-Shuttle (unless launched with the “Turn LCD Off”
option). Once the logger has been offloaded and
disconnected from the computer, the LCD will turn off
automatically after 2 hours. The LCD will turn back on the
next time the logger is connected to the computer.
• If the logger is recording both occupancy and light, the
LCD screen will cycle between both channels every 10
seconds.
• To save battery life when the occupancy channel is
enabled, the LCD will shut down if no motion is detected
for 60 seconds. Upon entering the detection zone of the
sensor, the LCD will turn back on within 1 second of
detection.
The room is occupied.
The room is unoccupied.
The light is on.
The light is off.
The logger is currently logging.
The logger can be calibrated. See Calibrating the
Light Sensor for more details.
This shows the signal strength of the light being
monitored. In this example, the signal strength is
at full scale. See Calibrating the Light Sensor for
more details.
Setting up the Logger
Use HOBOware to set up the logger, including configuring the
sensor and selecting the start and stop logging options.
1. Connect the logger and open the Launch Logger window. To
connect the logger to a computer, plug the small end of the
USB cable into the side of the logger and the large end into a
USB port on the computer. Click the Launch icon on the
HOBOware toolbar or select Launch from the Device menu.
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