Hobo MX series User manual

Quick Start for the HOBO® MX Water Level Logger (MX2001)
19388-K MAN-QSG-MX2001
Before you begin: After completing steps 1–4, it is recommended that you perform a trial run of steps 5 through 11 before deploying the
logger.
IMPORTANT: When assembling the logger or attaching the cable, make sure the O-rings and mating housing surfaces are clear of any
debris. Any contamination of these surfaces can cause leaks that will lead to logger failure.
1
Install the batteries in the top end. Unscrew the end cap and pull out the board. Apply a small amount of the included fresh
dielectric grease to the battery terminals. Insert the included two AA batteries observing polarity as shown on the board. Reinsert
the board. Screw the cap back on until hand tight.
2 Connect the top end to the sensor end with the water level logger cable as shown here. The end of the cable with the longer
housing connects to the top end as shown below.
3Download HOBOconnect® to your phone or tablet.
4
Open the app. Enable Bluetooth® in your device settings if prompted.
5 Tap Devices in the app. The logger should appear in the list of devices. If it does not appear, make sure it is within range of your
mobile device. (Note that the serial number shown in the app is for the top end of the logger).
6
If you are ready to deploy the logger, place it in the deployment location. Refer to the logger manual at
www.onsetcomp.com/manual/mx2001 for deployment guidelines. Otherwise, skip deployment and complete the following steps
as a test.
7
Tap the logger in the app to connect to it and tap to set up the logger.
Remove board and
install batteries
Top end
Unscrew end cap
Top end
Sensor end
Plug this portion of the cable with
the longer housing into the top end
and screw to tighten (hand tight)
Plug this portion of the cable with the shorter housing
into the sensor end and screw to tighten (hand tight)

1
-508-759-9500 (U.S. and International)
1
-800-LOGGERS (564-4377) (U.S. only)
www.onsetcomp.com/support/contact
© 2015–2020 Onset Computer Corporation. All rights reserved. Onset, HOBO, and HOBOconnect are trade,marks or registered
trademarks of Onset Computer Corporation. App Store is a service mark of Apple Inc. Google Play are is a trademark of Google
LLC. Bluetooth is a registered trademark of Bluetooth SIG, Inc. All other trademarks are the property of their respective
companies.
This product has been manufactured by Onset Computer Corporation and in compliance with Onset’s ISO 9001:2015 Quality
Management System.
Patent #: 8,860,569 19388-K MAN-QSG-MX2001
8
Under Deployment Information:
a. Tap Reference Water Level and enter the current water level as the reference level in meters or feet. Water levels that
are below the reference point should be entered as negative values. The reference water level entered will be
associated with the first data point once logging begins to determine the correction factor to be used for water level
data.
b. Tap Water Density and select one from the list for the deployment or enter your own value under Manual Input.
c. Tap Save to return to the Configuration screen.
9
Scroll down in the Configuration screen to select the measurement parameters to be logged. Differential pressure must be
enabled to calculate water level. Temperature must be enabled to log absolute pressure. Temperature is also required if you
selected the water density option “Fresh Water adjusted for Temp.”
1
0 Select any other logger settings as desired and then tap to save the settings to the logger. The logger will begin logging
data based on the settings you selected.
1
1 To offload data from the logger to your device, tap Devices. Connect to the logger and tap . To view, export, and share the
data, tap HOBO Files, tap , and then tap .
For detailed specifications and information about this logger, refer to the complete product manual. Go to
www.onsetcomp.com/manual/mx2001 or scan the code at left.