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HOBO MX2300 Series Data Logger Manual 

1-800-LOGGERS 

www.onsetcomp.com 

4.

 

Tap the HOBOs icon at the bottom of the screen. Tap the 

logger in the list to connect to it.

 

 

 

If the logger does not appear in the list or if it is having trouble 

connecting, follow these tips: 

 

Make sure the logger is “awake” by pressing the start 

button. The alarm and status LEDs will blink once when 

the logger wakes up. You can also press the button a 

second time to bring it to the top of the list if you are 

working with multiple loggers. 

 

Make sure the logger is within range of your mobile 

device. The range for successful wireless communication 

is approximately 30.5 m (100 ft) with full line-of-sight. 

 

If your device can connect to the logger intermittently or 

loses its connection, move closer to the logger, within 

sight if possible. 

 

If the logger appears in the list, but you cannot connect 

to it, close HOBOmobile and power cycle the mobile 

device. This forces the previous Bluetooth connection to 

close. 

Once connected to the logger you can select one of the 

following actions: 

 

Configure.

 Select logger settings and load them onto the 

logger to start logging. See 

Configuring the Logger

 

Readout.

 Download logger data. See 

Reading Out the 

Logger

 

Full Status Details.

 Check the battery level and view the 

configuration settings currently selected for the logger. 

 

Start Logging. 

Select this option to begin logging (if the 

logger is configured to start “On Button Push” as 

described in 

Configuring the Logger

). 

 

Stop Logging.

 Stop the logger from recording data. This 

overrides any Stop Logging settings described in 

Configuring the Logger

 

Page Logger LED.

 Press and hold this option to illuminate 

the alarm and status LEDs for 4 seconds. 

 

Logger Password.

 Select this to create a password for the 

logger that will be required if another mobile device 

attempts to connect to it. To reset a password, connect 

to the logger, tap Set Logger Passkey, and select Reset to 

Factory Default. You can also press the button on the 

logger for 10 seconds to reset a password. 

 

Update Firmware.

 When new logger firmware is 

available, this action appears in the list. Select it and 

follow the instructions on the screen. Note that if there is 

a communication failure during the firmware update 

process, the logger will revert to the previous firmware. 

Important:

 Before updating the firmware on the 

logger, always read out the logger first. Check the 

remaining battery level by selecting Full Status Details 

and make sure it is no less than 30%. Make sure you 

have the time to complete the entire update process, 

which requires that the logger remains connected to 

the device during the upgrade. 

 

Force Offload.

 This may appear if an error was 

encountered when loading configure settings. Select this 

to offload all the data on the logger before reconfiguring 

the logger. 

Configuring the Logger 

Use HOBOmobile to set up the logger, including selecting the 

logging options, configuring alarms, and enabling Power Saving 

Mode. These steps provide an overview of setting up the 

logger. For complete details, see the 

HOBOmobile User’s Guide

1.

 

Press the button on the logger to wake it up. 

2.

 

Find the logger in the list and tap it to connect to it. If you 

are working with multiple loggers, you can press the button 

on the logger a second time to bring it to the top of the list. 

The logger name (or serial number if no name has been 

assigned) turns green when the logger moves to the top of 

the list. Note that the current readings are displayed even 

when the logger is not logging. 

 

3.

 

Once connected, tap Configure.

 

 

 

4.

 

Tap Name and type a name for the logger up to 20 

characters (optional). Tap Done. If no name is selected, the 

logger serial number is used as the name. 

5.

 

Tap Group to add the logger to the Favorites group, an 

existing custom group, or create a new group name with up 

to 20 characters (optional). Tap Done. 

6.

 

Tap Logging Interval and choose how frequently the logger 

will record data unless operating in burst logging mode (see 

Burst Logging

). 

7.

 

Tap Start Logging and select when logging will begin: 

 

Now.

 Logging will begin immediately after tapping Start 

in the Configure screen. 

PLACEHOLDER

 

PLACEHOLDER

 

PLACEHOLDER

 

Summary of Contents for MX2303

Page 1: ...ernal temperature sensor xx minutes in air moving 1 m sec MX2303 and MX2304 external sensors xx minutes in air moving 1 m sec xx seconds in stirred water Stability Drift 0 01 C 0 018 F per year Relati...

Page 2: ...ll be illuminated for 4 seconds Status LED This LED blinks blue every 4 seconds when the logger is logging unless Show LED is disabled as described in Configuring the Logger If the logger is waiting t...

Page 3: ...n on the logger for 10 seconds to reset a password Update Firmware When new logger firmware is available this action appears in the list Select it and follow the instructions on the screen Note that i...

Page 4: ...then tap Done For example select 30 days if you want the logger to log data for 30 days after logging begins d Tap Done in the Stop Logging screen 9 Select the sensor measurement types that will be lo...

Page 5: ...r clear when the sensor reading is within the logger specifications of 0 04 C resolution This means the value that triggers the alarm may differ slightly than the value entered For example if the High...

Page 6: ...r is stopped with a button push while in burst logging mode then a New Interval event is automatically logged and the burst condition is cleared even if the actual high or low condition has not cleare...

Page 7: ...ect 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 bri...

Page 8: ...y life is 1 year typical with a logging interval of 1 minute but may be extended to 2 years when the logger is configured with Power Saving Mode enabled Expected battery life varies based on the ambie...

Page 9: ...nect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help This device complies with Part 1...

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