Hobo MX2303 Manual Download Page 8

HOBO MX2300 Series Data Logger Manual 

1-800-LOGGERS 

www.onsetcomp.com 

 

When deploying an MX2302 logger, the sensor must be 

mounted vertically. If the sensor is being deployed in a 

solar radiation shield, mount it vertically as shown below. 

 

 

When deploying a logger with external sensors (MX2302, 

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 loggers with external sensors (MX2302, MX2303, and 

MX2304) or for MX2301 and MX2305 loggers that are 

not being deploying with a solar radiation shield, 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. 

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. Battery 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 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. 
To install or replace the battery: 
1.

 

Use a Phillips-head screwdriver to unscrew the four screws 

from the back of the logger. 

 

2.

 

Carefully separate the top and bottom of the logger 

enclosure. 

3.

 

Remove the old battery and insert the new battery 

observing polarity. 

4.

 

Carefully reassemble the logger enclosure and screw in the 

four screws. 

 

WARNING:

 Do not cut open, incinerate, heat above 85°C 

(185°F), or recharge the lithium battery. The battery may 

explode if the logger is exposed to extreme heat or conditions 

that could damage or destroy the battery case. Do not dispose 

of the logger or battery in fire. Do not expose the contents of 

the batteries to water. Dispose of the battery according to local 

regulations for lithium batteries. 

 

 

 

PLACEHOLDER

 

Unscrew these four 

screws to replace 

the battery 

Drip Loop 

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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