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HOBO External Temp/RH Data Logger (UX100-023A) Manual 

1-800-LOGGERS 

www.onsetcomp.com

 

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Description 

 

This is an example of a temperature reading. 
Temperature units are determined by the settings 
in HOBOware. To switch between Celsius and 
Fahrenheit, change the Display Preferences in 
HOBOware before launching the logger. 

 

This is an example of an RH reading.  

 

The logger has been configured to start logging on 
a particular date/time. The display will count down 
in days, hours, minutes, and seconds until logging 
begins. In this example, 5 minutes and 38 seconds 
remain until logging will begin. 

 

The launch settings are being loaded onto the 
logger from HOBOware. Do not disconnect the 
USB cable during this process. 

 

An error occurred while loading the launch 
configurations onto the logger from HOBOware. 
Make sure the USB cable is connected to both the 
logger and the computer and try launching again. 

 

The logger has been stopped with HOBOware or  
because the memory is full. 

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 for 1 second. The LCD will then remain 
on for 10 minutes. 

 

The LCD screen refreshes every 15 seconds regardless of 
the logging interval selected in HOBOware. If you choose 
a logging interval less than 15 seconds, the data will be 
recorded at the faster interval, but the sensor readings 
will only be updated on the screen every 15 seconds. 

 

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. 

Setting up the Logger 

Use HOBOware to set up the logger, including setting alarms, 
selecting the options to start and stop logging, and choosing a 
logging mode. 

1.

 

Connect the logger and open the Launch Logger window

To connect the logger to a computer, use the USB cable 
provided. Click the Launch icon on the HOBOware toolbar 
or select Launch from the Device menu.

 

Important:

 USB 2.0 specifications do not guarantee 

operation outside the range of 0°C (32°F) to 50°C (122°F). 

2.

 

Select the sensors to log in this deployment.

 Choose 

Temperature or Temperature and RH. Type a label for the 
sensor(s) if desired. Note that both sensors are required to 
calculate dew point, which is an additional data series 
available for plotting after reading out the logger.

 

 

3.

 

Set up alarms (optional).

 Click the Alarms button if you 

want to configure an alarm to trip when the sensor reading 
is above or below a value you specify. See 

Setting up Alarms

 

for details. 

 

4.

 

Configure filters (optional). 

Click the Filters button to 

create additional filtered data series. Any filtered series will 
be available automatically upon reading out the logger.

 

5.

 

Select the Logging Interval. 

Select a logging interval from 1 

second to a maximum of 18 hours, 12 minutes, and 15 
seconds.

 

6.

 

Select the Logging Mode

:

 

 

Fixed Interval.

 In Fixed Interval mode, data will always be 

recorded at the regular logging interval set in the 
previous step. This is the default setting. 

 

Burst. 

In Burst mode, logging will occur at a different 

interval when a specified condition is met. See 

Burst 

Logging 

for more information.  

 

Statistics.

 In Statistics mode, maximum, minimum, 

average, and standard deviation statistics are calculated 
for all enabled sensors during logging, sampling at an 
interval you specify. See 

Statistics

 for more information. 

7.

 

Choose when to start logging: 

 

Now.

 Logging begins immediately. 

 

At Interval. 

Logging will begin at the next even interval as 

determined by the selected logging interval. 

 

On Date/Time.

 Logging will begin at a date and time you 

specify. 

 

Push Button.

 Logging will begin once you press the 

Start/Stop logging button for 3 seconds. 

8.

 

Choose when to stop logging: 

 

When Memory Fills.

 Logging will end once the logger 

memory is full. 

 

Never (Wrap When Full).

 The logger will continue 

recording data indefinitely, with newest data overwriting 
the oldest. This option is not available if Burst is selected 
for the Logging Mode. 

Summary of Contents for Hobo UX100-023A

Page 1: ...ical Resolution 0 01 Response Time 15 seconds to 90 in airflow of 1 m s 2 2 mph Drift 1 per year typical Cable Length 1 83 m 6 ft Logger Logger Operating Range Logging 20 to 70 C 4 to 158 F 0 to 95 RH...

Page 2: ...oximate battery power remaining 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 When first launch...

Page 3: ...p logging and choosing a logging mode 1 Connect the logger and open the Launch Logger window To connect the logger to a computer use the USB cable provided Click the Launch icon on the HOBOware toolba...

Page 4: ...g Out the Logger for details Setting up Alarms You can set an alarm to trip on the logger when a sensor reading rises above or falls below a specified value To set an alarm 1 Click the Alarms button f...

Page 5: ...th burst logging You also cannot select the Stop Logging option Never wrap when full if burst logging is configured 2 In the Burst Logging window select a sensor In the example at right the temperatur...

Page 6: ...Standard Deviation checkboxes for each of the statistics you want to calculate during logging Note that Average is automatically enabled when selecting Standard Deviation Important Statistics apply t...

Page 7: ...if burst or statistics logging modes are active and battery performance A new battery typically lasts 1 year with logging intervals greater than 1 minute Deployments in extremely cold or hot temperat...

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