HOBO MX2300 Series Data Logger Manual
1-800-LOGGERS
7
www.onsetcomp.com
the shorter the logger duration and the more memory is
required.
6.
Tap Statistics Sampling Interval and select the rate to use
for calculating statistics. The rate must be less than, and a
factor of, the logging interval. For example, if the logging
interval is 1 minute and you select 5 seconds for the
sampling rate, then the logger will take 12 sample readings
between each logging interval (one sample every 5 seconds
for a minute) and use the 12 samples to record the resulting
statistics at each 1-minute logging interval. Note that the
more frequent the sampling rate, the greater the impact on
battery life.
7.
Tap Done.
8.
Tap Done again to exit the Logging Mode screen.
9.
Tap Start in the Configure screen to load the statistics
settings onto the logger if you are ready to start.
Setting a Password
You can create an encrypted password for the logger that will
be required if another phone or tablet attempts to connect to
it. This is recommended to ensure that a deployed logger is not
mistakenly stopped or purposely altered by others. This
password uses a proprietary encryption algorithm that changes
with every connection.
To set a password:
1.
Tap the HOBOs icon and connect to the logger.
2.
Tap Logger Password.
3.
Type a password up to 10 characters.
4.
Tap Save.
Only the phone or tablet used to set the password can then
connect to the logger without entering a password; all other
mobile devices will be required to enter the password. For
example, if you set the password for the logger with your tablet
and then try to connect to the device later with your phone,
you will be required to enter the password on the phone but
not with your tablet. Similarly, if others attempt to connect to
the logger with different devices, then they would also be
required to enter the password. To reset a password, connect
to the logger, tap Set Logger Passkey, and select Reset to
Factory Default or press the button on the logger for 10
seconds.
Reading Out the Logger
To offload data from the logger:
1.
Tap the HOBOs icon and tap the logger to connect to it. If
the logger was configured with Power Saving Mode
enabled, press the button on the logger to wake it up.
When working with multiple loggers, you can also press the
button on the logger to bring it to the top of the list.
2.
Once connected, tap Readout.
3.
Tap the Data Files icon to view a mini-graph of the
downloaded data.
4.
Tap the mini-graph to view a larger version of the graph or
to share the file. See the
HOBOmobile User’s Guide
for
details on viewing graphs and sharing data.
Data can also be uploaded automatically to HOBOlink, Onset’s
web-based software. Tap the Settings icon to enable the
HOBOlink Upload Data option (this requires a HOBOlink
account at www.hobolink.com). See the
HOBOmobile User’s
Guide
for more details on this setting and see the HOBOlink
help for details on working with data in HOBOlink.
Logger Events
The logger records the following internal events to track logger
operation and status. To plot events in HOBOmobile, tap a
mini-graph and then tap
. Select the events you wish to plot
and then tap
again. You can also view events in shared or
exported data files.
Internal Event Name
Definition
Host Connected
The logger was connected to the mobile
device.
Started
The Start button was pressed to begin
or
resume logging.
Stopped
The logger stopped logging.
Alarm Out of
Range/In Range
An alarm has occurred because the reading
was outside the alarm limits or back within
range.
Note:
Although the reading may
return to a normal range, the alarm indicator
will not clear in the app and the alarm LED
will continue to blink until you reconfigure
the logger.
New Interval
The logger has entered or exited burst
logging mode.
Safe Shutdown
The battery level dropped below
1.85 V
; the
logger performs a safe shutdown.
Deploying and Mounting the Logger
Follow these guidelines when deploying the logger:
•
A solar radiation shield is required if the MX2301 or
MX2305 logger or the external sensors from an MX2302,
MX2303, or MX2304 logger will be in sunlight at any
time.
•
When using a solar radiation shield with an MX2301 or
MX2305 model, the logger must be mounted horizontally
using the solar radiation shield bracket (MX2300-RS-
BRACKET) as shown below. For more details on the solar
radiation shield, refer to the
Solar Radiation Shield
Installation Guide
at www.onsetcomp.com/manuals/rs1.
