HOBO MX2300 Series Data Logger Manual
1-508-759-9500 (U.S. and International) 7
www.onsetcomp.com
1-800-LOGGERS (U.S. only)
To plot events, tap HOBO Files and select a file to open.
Tap
(if applicable) and then tap
. Select the events you
want to plot and tap OK.
Internal Event Name
Definition
Host Connected
The logger was connected to the mobile
device.
Started
The logger started logging.
Stopped
The logger stopped logging.
Alarm
Tripped/Cleared
An alarm has occurred because the reading
was outside the alarm limits or back within
range.
Note:
Although the reading may have
returned to a normal range during logging,
an alarm cleared event will not be logged if
the logger was set up to maintain alarms
until reconfigured.
New Interval
The logger has switched to logging at the
burst logging rate or back to the normal rate.
Safe Shutdown
The battery level dropped below a safe
operating voltage and the logger performed
a safe shutdown.
Deploying and Mounting the Logger
Follow these guidelines when deploying the logger:
•
A solar radiation shield is required if the MX2301A or
MX2305 logger or the external sensors from an
MX2302A, MX2303, or MX2304 logger will be in sunlight
at any time.
•
When using a solar radiation shield with an MX2301A or
MX2305 model, the logger must be mounted using the
solar radiation shield bracket (MX2300-RS-BRACKET) to
the underside of the mounting plate as shown.
For more details on the solar radiation shield, refer to the
Solar Radiation Shield Installation Guide
at
www.onsetcomp.com/manuals/rs1.
•
When deploying an MX2302A logger, it is recommended
that the sensor must be mounted vertically. If it must be
mounted horizontally, then make sure the vent on the
side of the sensor is vertical or facing down. If the sensor
is being deployed in an RS3-B solar radiation shield,
mount it vertically as shown below.
•
When deploying a logger with external sensors
(MX2302A, MX2303, and MX2304), mount the logger so
the sensor cable is not being pulled. Leave about 5 cm (2
in.) of drip loop in the cable where it comes out of the
logger to prevent water from entering the logger
housing.
•
For MX2301A and MX2305 loggers that are not being
deployed with a solar radiation shield or for loggers with
external sensors (MX2302A, MX2303, and MX2304), you
can either use the included large screws or cable ties to
mount the logger via the mounting holes. Use the screws
to attach the logger to a wall or flat surface. Use the
cable ties to affix the logger to a PVC pipe or mast. The
MX2301A logger must also be mounted vertically or with
the sensor vent facing down when not using the solar
radiation shield.
Protecting the Logger
Note:
Static electricity may cause the logger to stop logging.
The logger has been tested to 8 KV, but avoid electrostatic
discharge by grounding yourself to protect the logger. For more
information, search for “static discharge” on onsetcomp.com.
Battery Information
The logger requires one user-replaceable 2/3 AA 3.6 V lithium
battery (HRB-2/3AA). Battery life is 2 year, typical with a logging
interval of 1 minute, but may be extended to 5 years when the
logger is configured with Bluetooth Always On disabled.
Expected battery life varies based on the ambient temperature
where the logger is deployed, the logging or sampling interval,
frequency of offloading and connecting to the mobile device,
number of channels that are active, and use of burst mode or
statistics logging. Deployments in extremely cold or hot
temperatures or logging interval faster than 1 minute can
impact battery life. Estimates are not guaranteed due to
uncertainties in initial battery conditions and operating
environment.
Drip Loop