Hobo Pendant UA-001-08, Pendant UA-001-64 User Manual

HOBO® Pendant® Temperature Data Logger (UA-001-xx) Manual

The HOBO Pendant Temperature Data Logger is a waterproof, one-channel logger with 10-bit
resolution and can record up to approximately 6,500 (8K model) or 52,000 (64K model)
measurements or internal logger events. The logger uses a coupler and optical base station
with USB interface for launching and data readout by a computer. Onset software is required
for logger operation. Visit www.onsetcomp.com/hoboware-free-download.

Specifications

HOBO Pendant
Temperature Data Logger

Models: UA-001-08

UA-001-64

Required Items:

• HOBOware 2.x or later

• USB cable

• Pendant Optic USB Base

Station & Coupler (BASE-U-1)

• Optic USB Base Station

(BASE-U-4) or HOBO
Waterproof Shuttle
(U-DTW-1) & Coupler
(COUPLER2-A)

Measurement Range -20° to 70°C (-4° to 158°F)

Alarms High and low alarms can be configured for total amount of contiguous or

Accuracy ±0.53°C from 0° to 50°C (±0.95°F from 32° to 122°F), see Plot A

Resolution 0.14°C at 25°C (0.25°F at 77°F), see Plot A

Drift Less than 0.1°C/year (0.2°F/year)

Response Time

Time Accuracy ±1 minute per month at 25°C (77°F), see Plot B

Operating Range

Water Depth Rating 30 m from -20° to 20°C (100 ft from -4° to 68°F), see Plot C

NIST Traceable
Certification

Battery Life 1 year typical use

Memory

Materials Polypropylene case; stainless steel screws; Buna-N o-ring

Weight 15.0 g (0.53 oz)

Dimensions 58 x 33 x 23 mm (2.3 x 1.3 x 0.9 inches)

Environmental Rating IP68

Passed RTCA DO160G, part 21H

non-contiguous time outside of user-defined limits between -20° and 70°C
(-4° to 158°F)

Airflow of 2 m/s (4.4 mph): 10 minutes, typical to 90%

Water: 5 minutes, typical to 90%

In water/ice: -20° to 50°C (-4° to 122°F)

In air: -20° to 70°C (-4° to 158°F)

Available for temperature only at additional charge; temperature range

-20° to 70°C (-4° to 158°F)

UA-001-08: 8K bytes (approximately 6.5K sample and event readings)

UA-001-64: 64K bytes (approximately 52K sample and event readings)

The CE Marking identifies this product as complying with all relevant
directives in the European Union (EU).

9531-O

Plot A Plot B

40

30

20

Depth (m)

10

0

-20 0 20 40 60

Waterproof

range

Temperature (°C)

Plot C

HOBO Pendant Temperature Data Logger (UA-001-xx) Manual

Connecting the Logger

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 (COUPLER2-A); 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.

BASE-U-1 & COUPLER

Ridge

user’s guide for complete details on launching, reading out, and
viewing data from the logger.

Important: Do not cover the optical communication window in
the logger (shown in diagram above) with a label or sticker as
that may interfere with the communications with the base
station or shuttle.

Triggered Start

This logger can be configured to start at your command, using
the magnet in the coupler to trigger a start.

1. Use HOBOware to launch the logger with Using Coupler
selected. Remove the logger from the coupler.

2. Bring the logger and an empty coupler or strong magnet to
the deployment location.

Important: Any magnet can trigger a start. This can be helpful,
but it can also cause a premature start. Keep the logger away
from strong magnetic fields until you are ready to begin
logging.

3. When you are ready for the logger to start logging, insert
the logger into the empty coupler (or place it next to a
strong magnet) and remove it after three seconds.

Important: The logger will not launch if the base station is in
the coupler.

LOGGER

Magnet

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.

To BASE-U-4 or
HOBO Waterproof Shuttle

COUPLER2-A

Coupler lever (for use with
HOBO Waterproof Shuttle)

Optical

communication

window

LOGGER

Ridge side down

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.

5. Use the logger software to set up the alarms, launch, and
read out the logger.

You can read out the logger or check its status while it
continues to log, stop it manually with the software, or let it
record data until the memory is full. Refer to the software

4. Verify that the logger’s light is blinking at least every four
seconds.

Sample and Event Logging

The logger can record two types of data: samples and internal
logger events. Samples are the measurements recorded at each
logging interval (for example, temperature every minute). Events
are independent occurrences triggered by a logger activity, such
as Bad Battery or Host Connected. Events help you determine
what was happening while the logger was logging.

Operation

Lights (LEDs) on the front of the logger confirm logger
operation. The following table explains when the lights blink
during logger operation.

When: The Lights:

The logger is logging
faster than four
seconds

The logger is logging at
four seconds or slower

The logger is awaiting
a start because it was
configured to start
logging At Interval, On
Date/Time, or Using
Coupler

Blink at the logging interval:

• Green LED if temperature is OK

• Red LED if high alarm has been triggered

• Blue LED if low alarm has been triggered

Blink every four seconds:

• Green LED if temperature is OK

• Red LED if high alarm has been triggered

• Blue LED if low alarm has been triggered

Green light blinks once every eight seconds
until launch begins

1-800-LOGGERS 2 www.onsetcomp.com