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22 results found

Deploying a HOBO water level data logger in salt water

316 Stainless Steel has good corrosion resistance but it can be damaged by crevice corrosion in saltwater. The stainless steel versions of HOBO data loggers should not be deployed for more than 6 months (lifetime cumulative) in salt or brackish water, or the housing will eventually fail and water will damage the electronics. How long the data logger will last depends on many factors such as salinity, level of dissolved oxygen, and temperature. Biofouling can also limit deployments in saltwater, because growths on the pressure sensor will change its calibration.
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Deploying the HOBO Water Level Logger in Saltwater

Suggested products and measures for long-term deployments to prevent corrosion
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HOBO Water Level Logger vs the Competition

This paper highlights results from Onset's tests of the HOBO Water Level logger and comparable loggers from two competitors.

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Sample Data - Processed HOBO U20-001-XX Water Level Data

Attached is a screenshot from a HOBO U20-001-01 Water Level logger data file that was post-processed using HOBOware Pro's Dissolved Oxygen Data Assistant.

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Sample Data - Processed HOBO U26-001 Dissolved Oxygen Data

Attached is a screenshot from a HOBO U26-001 Dissolved Oxygen (DO) logger data file that was post-processed using HOBOware Pro's Dissolved Oxygen Data Assistant.

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Using a Water Level Data Logger to Determine Stream Flow

Water level data loggers are commonly used to determine stream flow over time and "peak discharge"
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HOBO MX2001 Deployment Requirements

The HOBO MX2001 logger top-end unit (MX2001-TOP) is IP67-rated weatherproof, but should not be considered waterproof.

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Stainless steel loggers and salt water

Following is an important application note regarding the deployment of the following products: U20-001-01 – HOBO Water Level Logger U12-015 – HOBO U12 Stainless Steel Temp Logger U12-015-02 – HOBO U12 Stainless Steel Temp Logger with 5” probe
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How to Build a Stilling Well

Learn how to build a stilling well to get more accurate water level measurements for wells, stormwater systems, canals, flood irrigation, rivers, coastal areas, and more.
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Water Level Loggers Provide Insight into Mine Water Discharge

Hydrogeologists are using water level data loggers that can withstand highly-corrosive conditions to investigate mines in the Pittsburgh coal basin.
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