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HOBO MX Water Level Logger (MX2001-0x) Manual

 

U.S. and International Sales: 1-508-759-9500 12 

www.onsetcomp.com 

2.

 

Disconnect the cable. 

3.

 

Unscrew the end cap on the top end. Push the board out 
from the cable end and then pull out the printed circuit 
board. 

 

4.

 

Remove old batteries and wipe the contacts with a lint-free 
cloth to clean any debris. Apply a small amount of fresh 
dielectric grease to the contacts and the battery terminals 
on the new batteries. 

5.

 

Insert two AA batteries observing polarity as shown on the 
board. A slight curvature in the printed circuit board is 
normal when the batteries are installed. Reinsert the board. 

 

6.

 

Inspect the gore vent on the end cap to make sure it is not 
damaged. Contact Onset or an Onset distributor if you need 
a replacement vent. 

7.

 

Inspect the O-rings and the mating surface on the logger for 
any damage, clean off any debris, and re-lubricate the  
O-rings with the grease. (You can leave the O-rings on the 
end cap during this process). 

8.

 

Screw the cap back on until hand tight. 

9.

 

Inspect the sensor cable connection at the opposite end 
before reattaching the sensor. Clean off any debris and re-
lubricate the O-rings and mating surface on the sensor end 
with grease. (You can leave the O-rings on the end cap 
during this process). 

 

 

 

 

 

 

Unscrew end cap 

Remove board and install batteries 

Summary of Contents for MX2001-0 Series

Page 1: ... 0 02 kPa 0 003 psi 0 21 cm 0 007 ft water Pressure Response Time 90 1 second at a stable temperature Pressure Absolute and Water Level Measurements MX2001 02 SS S Operation Range 0 to 400 kPa 0 to 58 psia approximately 0 to 30 6 m 0 to 100 ft of water depth at sea level or 0 to 33 6 m 0 to 111 ft of water at 3 000 m 10 000 ft of altitude Factory Calibrated Range 69 to 400 kPa 10 to 58 psia 0 to 4...

Page 2: ... 1 C at 25 C 0 18 F at 77 F see Plot A Response Time 90 5 minutes in water typical Stability Drift 0 1 C 0 18 F per year Logger Operating Range 20 to 50 C 4 to 122 F Radio Power 1 mW 0 dBm Transmission Range Approximately 30 5 m 100 ft line of sight Wireless Data Standard Bluetooth Low Energy Bluetooth Smart Logging Rate 1 second to 18 hours Logging Modes Fixed interval multiple intervals with up ...

Page 3: ... to achieve full temperature compensation of the pressure sensor There can be up to 0 5 of additional error due to rapid temperature changes Measurement accuracy also depends on temperature response time Note Read all the directions in the Deploying a Logger section before deploying the logger Logger Components and Operation Disassembled top end The MX water level logger consists of a top end and ...

Page 4: ...layed as when the logger is stopped 6 Deploy the logger if ready If you are ready to deploy the logger place it in the deployment location see Deploying the Logger for deployment guidelines Otherwise skip deployment and complete the following steps as a test 7 Connect to the logger Tap the logger tile in the app to connect to the logger Tips for connecting Make sure the top end of the logger is wi...

Page 5: ...he current water level when the logger starts logging make sure the sensor is in position when logging starts Make this reading as accurate as possible since this reading is used to calibrate the water level data and adjust it to your reference See section 5 starting on page 7 for information on how to measure and enter the reference water level The logger must be logging for you to enter the refe...

Page 6: ...grommets are available at www onsetcomp com part number GROMMET 5 To install the grommet with the logger 1 Drill two 3 mm or 1 8 inch holes on opposite sides of the well cap for cross ventilation The holes should be just above the top of the grommet when installed as shown 2 Install the grommet with the upper ring sitting on top of the well as shown 3 Install the well cap on top of the well refer ...

Page 7: ...the top end unit in direct sun as that can lead to more rapid temperature swings which can lead to more measurement error and possibly hurt logger reliability To deploy the logger 1 Make sure the top end is connected to the sensor end with the water level logger cable as described in Getting Started with the Logger 2 Attach any small parts such as bolts with nuts before you go into the field so yo...

Page 8: ... alarm is set to 85 F and the duration is set to 30 minutes then the alarm will trip once the sensor readings have been above 85 F for a total of 30 minutes since the logger was configured Consecutive The alarm trips once the sensor reading is out of the acceptable range continuously for the selected duration For example the high alarm is set to 85 F and the duration is set to 30 minutes then the ...

Page 9: ... Logger Events for details on plotting and viewing the event Statistics Logging During fixed logging the logger records data for enabled sensors and or selected statistics at the selected logging interval Statistics are calculated at a sampling rate you specify with the results for the sampling period recorded at each logging interval You can log the following statistics for each sensor The maximu...

Page 10: ...wnloads data to the phone tablet or computer 3 Once the download is complete tap Done to return to the previous page or tap Export and Share to save the file in the specified format 4 When the export file has successfully been created tap Done to return to the previous page or tap Share to use your device s usual modes of sharing You can also upload data automatically to HOBOlink Onset s cloud sof...

Page 11: ...All pressure sensors drift over time The drift for the pressure sensors and electronics in the logger is less than 0 5 FS worst case per year In most applications drift is not a significant source of error because the offset created by any drift is zeroed out when you enter the reference water level in the app at the beginning of each deployment In effect you are re zeroing the sensor each time yo...

Page 12: ...rcuit board is normal when the batteries are installed Reinsert the board 6 Inspect the gore vent on the end cap to make sure it is not damaged Contact Onset or an Onset distributor if you need a replacement vent 7 Inspect the O rings and the mating surface on the logger for any damage clean off any debris and re lubricate the O rings with the grease You can leave the O rings on the end cap during...

Page 13: ...cations not expressly approved by the party responsible for compliance could void the user s authority to operate this equipment Industry Canada Statements This device complies with Industry Canada license exempt RSS standard s Operation is subject to the following two conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may...

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