User Manual

HOBO Pendant Temperature/Light Data Logger (UA-002-xx) Manual
1-800-LOGGERS 2 www.onsetcomp.com
Specifications (continued)
Plot C Plot D
Deployment/Mounting
The Light Sensor response is roughly cosine dependent with the
angle from vertical. Therefore, whether outdoors or
underwater, the logger must be mounted horizontally so that
the sensor is pointing straight up towards the sky.
Attach the logger to a flat surface using glue, a tie, or a rubber
band, making sure that the sensor is pointing up.
Connecting the Logger to a Computer
The HOBO Pendant logger requires either of the following to
connect to the computer:
• Pendant Optic USB Base Station & Coupler (BASE-U-1);
HOBOware 2.1 or later
OR
• Optic USB Base Station (BASE-U-4) or HOBO Waterproof
Shuttle (U-DTW-1); coupler (COUPLER2A); HOBOware 2.2 or
later
If possible, avoid connecting at temperatures below 0°C (32°F)
or above 50°C (122°F).
1. Plug the USB connector on the base station into an available
USB port on your computer.
2. Insert the logger and the base station into the coupler, as
shown in the following diagrams.
For BASE-U-1, make sure that the logger is inserted in the
end of the coupler that has the magnet, and that the ridges
on the base station and logger are aligned with the grooves
in the coupler.
For BASE-U-4 or the HOBO Waterproof Shuttle, firmly insert
the optical end of the base station into the D-shaped end of
the coupler, and make sure that the ridge on the logger is
aligned with the groove in the coupler.
3. If you are using the HOBO Waterproof Shuttle, briefly press
the coupler lever to put the shuttle into base station mode.
4. If the logger has never been connected to the computer
before, it may take a few seconds for the new hardware to
be detected.
0
10
20
30
40
-20 0 20 40 60
Temperature (°C)
Depth (m)
Waterproof
range
0
20
40
60
80
100
120
0 200 400 600 800 1000 1200 1400
Wavelength (nm)
Response (%)
Pendant
Eye
LOGGER
Magnet
BASE-U-1 & COUPLER
Ridge
LOGGER
COUPLER2-A
To BASE-U-4 or
HOBO Waterproof Shuttle
Coupler lever (for use with
HOBO Waterproof Shuttle)
Ridge side down
Optical
communication
window