HOBO® Light On/Off Data Logger (UX90-002x) Manual
15431-E
The HOBO Light On/Off data logger monitors indoor light changes with an internal sensor.
Using HOBOware®, you can easily configure the logger to record light on and off conditions
making it ideal for building energy audits and light usage analysis. 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 screen to quickly calibrate the logger to the light level in your building
or you can set calibration to preset sensitivity thresholds with HOBOware. There are two
models of the HOBO Light On/Off data logger: the UX90-002 has 128 KB of memory while the
UX90-002M has 512 KB.
Specifications
Light Threshold
> 65 lux
Light Type
LED, CFL, fluorescent, HID, incandescent, natural
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
UX90-002: 128 KB (84,650 measurements, maximum)
UX90-002M: 512 KB (346,795 measurements, maximum)
Download Type
USB 2.0 interface
Full Memory Download
Time
10 seconds for 128 KB; 30 seconds for 512 KB
Logger Operating Range
Logging: -20° to 70°C (-4° to 158°F); 0 to 95% RH (non-condensing)
Launch/Readout: 0° to 50°C (32° to 122°F) per USB specification
LCD
LCD is visible from: 0° to 50°C (32° to 122°F); the LCD may react slowly or
go blank in temperatures outside this range
Size
3.66 x 5.94 x 1.52 cm (1.44 x 2.34 x 0.6 in.)
Weight
23 g (0.81 oz)
Environmental Rating
IP50
The CE Marking identifies this product as complying with all relevant
directives in the European Union (EU).
Plot A: Time Accuracy
HOBO Light On/Off
Data Logger
Models: UX90-002
UX90-002M
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)
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