Hobo Pendant Event, UA-003-64 User Manual

HOBO® Pendant® Event Data Logger (UA-003-64) Manual

T

The HOBO Pendant Event/Temp Data Logger is a rugged, weatherproof event logger with a 10­bit temperature sensor. It is ideal for use with tipping-bucket rain gauges, and can record tens
of thousands of measurements and events. The logger uses a coupler and optical base station
with USB interface for launching and data readout by a computer.

Specifications

External Event Input

Event Sensor Two-wire interface suitable for measuring mechanical and electrical contact

Maximum Input
Frequency

Lockout Time 500 ms

Minimum Pulse Width 1 ms (hardware debounce)

Input/Output Impedance 100 kΩ

HOBO Pendant Event
Data Logger

Edge Detection Falling edge, contact closure, or Schmitt-trigger buffer

Preferred Switch Type Normally open. For maximum battery life, the event input should be used

Model: UA-003-64

Included Items:

• Tie wraps

• Adhesive mount

Open Circuit Input
Voltage

Maximum Input Voltage Battery voltage + 0.3 V

User Connection 24 AWG, 2 leads: white (+), black (-)

Required Items:

• HOBOware 2.x or later (go to
www.onsetcomp.com/
hoboware-free-download)

• 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)

emperature Measurement

Measurement Range

Accuracy

Resolution

Drift

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

Logger

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

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

Environmental Rating Tested to NEMA 6 and IP67; suitable for deployment outdoors

Drop Specification 1.5 m (5 ft) onto concrete

NIST Traceable
Certification

Battery CR-2032 3V lithium battery; 1 year typical use

Memory 64K bytes; see Data Storage.

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

Weight 50 g (1.7 oz.)

Dimensions 71 x 33 x 23 mm (2.8 x 1.3 x 0.9 inches); 1.8 m (6 ft) cable

closures

1 Hz (1 pulse per second)

with its preferred switch type. The logger will work with normally closed
switches, but battery life will be compromised.

Battery voltage; nominally 3.0 V

-20° to 70°C (-4° to 158°F)

±0.53°C from 0° to 50°C (±0.95°F from 32° to 122°F), see Plot A. A solar
radiation shield is required for accurate temperature measurements in
sunlight.

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

Less than 0.1°C/year (0.2°F/year)

Available for temperature only at additional charge; temperature range

-20° to 70°C (-4° to 158°F)

insulation

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

9831-I MAN-UA-003

Shop for Data Logging products online at: www.DataLogger Store.ca 1.800.561.8187

HOBO Pendant Event Data Logger (UA-003) Manual

Specifications (continued)

Plot A Plot B

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.

BASE-U-1 & COUPLER

Ridge

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

LOGGER

Magnet

1-800-LOGGERS 2 www.onsetcomp.com

Shop for Data Logging products online at: www.DataLogger Store.ca 1.800.561.8187

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.

Connecting to a Tipping-Bucket Rain Gauge

The logger’s black and white input wires can be connected
directly to the relay output of most tipping-bucket rain gauges.
(Polarity of the input connection is not important.) If your
gauge came with a counter display and battery, disconnect